CN108951315A - Orbit connection device and rail assembly - Google Patents
Orbit connection device and rail assembly Download PDFInfo
- Publication number
- CN108951315A CN108951315A CN201710447822.8A CN201710447822A CN108951315A CN 108951315 A CN108951315 A CN 108951315A CN 201710447822 A CN201710447822 A CN 201710447822A CN 108951315 A CN108951315 A CN 108951315A
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- Prior art keywords
- track
- connection device
- connecting hole
- screw
- periphery
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- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B23/00—Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor
- E01B23/02—Tracks for light railways, e.g. for field, colliery, or mine use
- E01B23/04—Fastening or joining means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention is suitable for railway technology field, provide a kind of orbit connection device and rail assembly, the orbit connection device includes tensioner screw, both ends are respectively for insertion into the cushion block of the first connecting hole and the second connecting hole and both ends are respectively for insertion into the tightening piece of the first connecting hole and the second connecting hole, part on tightening piece between the first track and the second track is equipped with the screw hole that radially direction extends, tensioner screw is combined in screw hole and one end is held in cushion block, tensioner screw pushing tow cushion block is so that cushion block and tightening piece squeeze the inner wall of the first connecting hole and the second connecting hole.The both ends of tightening piece and cushion block need to be only inserted into the first connecting hole and the second connecting hole in connection, then screw tensioner screw by orbit connection device provided by the invention, convenient and efficient, can Fast Installation disassembly, substantially increase the progress of construction.
Description
Technical field
The invention belongs to railway technology field more particularly to a kind of orbit connection device and the orbit connection device is installed
Rail assembly.
Background technique
Current intelligentized tunnel cable inspection robot applies more and more extensive, the short then several hundred rice of tunnel cable length,
It is long then several kilometers or even tens kilometers, due to crusing robot have high definition camera without dead angle visible light monitoring and heat
The real-time thermography analysis being imaged, intelligence operation inspection, because of its advantage efficiently, real-time, adaptive faculty is strong, crusing robot substitution
It is more and more extensive that manpower carries out inspection maintenance application aspect to tunnel cable, equipment.As carrying inspection device driving walking
Track is also particularly significant, but track processing, manufacture, transport, especially due to the construction and installation under tunnel environment, every section of rail
Road must not be too long, and with several meters for one section, therefore, it is necessary to a large amount of orbit connection device, orbit connection device needs quick and convenient
Installation, to improve construction speed.
Summary of the invention
The purpose of the present invention is to provide a kind of orbit connection devices, it is desirable to provide a kind of track connection dress of Fast Installation
It sets.
The invention is realized in this way it is described adjacent to define two for connecting two adjacent orbits for a kind of orbit connection device
Track is respectively the first track and the second track, and first track is equipped with side along its length towards the end face of second track
To the first connecting hole of setting, second track is equipped with the be arranged along its length towards the end face of first track
Two connecting holes, the orbit connection device include that tensioner screw, both ends are respectively for insertion into first connecting hole and described
The cushion block of two connecting holes and both ends are respectively for insertion into the tightening piece of first connecting hole and second connecting hole, described
Part on tightening piece between first track and second track is equipped with the screw hole that radially direction extends,
The tensioner screw is combined in the screw hole and one end is held in the cushion block, cushion block described in the tensioner screw pushing tow with
The cushion block and the tightening piece is set to squeeze the inner wall of first connecting hole and second connecting hole.
Further, the tightening piece includes first cylinder with the first periphery, by one end of first cylinder
It extends outwardly and has the second cylinder of the second periphery and extended outwardly and had by the other end of first cylinder
There is a third cylinder of third periphery, the diameter of second periphery and the third periphery is less than first periphery
Diameter, an end face of second periphery and first cylinder forms the first limited step, the third periphery and
The other end of first cylinder forms the second limited step.
Further, the flush with outer surface of first periphery and first track and second track.
Further, the diameter of second periphery is identical as the diameter of first connecting hole, the third outer circle
The diameter in face is identical as the diameter of second connecting hole.
Further, the tightening piece includes the first plane towards the cushion block, and the cushion block includes rising towards described
Tight block and second plane parallel with first plane, the tensioner screw are combined in the screw hole and pass through described
First plane is to be held in second plane.
Further, tensioner screw bottom is equipped with the binding face for fitting in second plane.
Further, the tensioner screw is sunk screw.
Further, the orbit connection device includes two tensioner screws, set on the tightening piece there are two point
The screw hole of the two tensioner screws Yong Yu be installed, the two tensioner screw holes are arranged along the length direction of the track
If.
Further, tensioner screw bottom is tapered.
The present invention also provides a kind of rail assembly, including the first track, the second track and by first track and
The orbit connection device that second track is connected, the orbit connection device are above-mentioned orbit connection device.
The present invention compared with the existing technology have the technical effect that orbit connection device provided by the invention include tightening piece,
Cushion block and tensioner screw are provided with screw hole on tightening piece, when needing to connect two adjacent orbits, that is, need to connect the first rail
When road and the second track, only the both ends of tightening piece and cushion block need to be inserted into the first connecting hole and the second connecting hole, then will
Tensioner screw is inserted into screw hole, and is rotated, and tensioner screw can open tightening piece and cushion block, and tightening piece and cushion block can be to mutual
The outer surface of separate direction movement, tightening piece and cushion block can support inner wall and pressure in the first connecting hole and the second connecting hole
Tightly, since the effect of frictional force, the first track and the second track can not relatively move, connection is just realized.It is provided by the invention
The both ends of tightening piece and cushion block need to be only inserted into the first connecting hole and the second connecting hole, so by orbit connection device in connection
After screw tensioner screw, it is convenient and efficient, can Fast Installation disassembly, substantially increase the progress of construction.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to the embodiment of the present invention or the prior art
Attached drawing needed in description is briefly described, it should be apparent that, drawings described below is only of the invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the cross-sectional view of orbit connection device provided in an embodiment of the present invention；
Fig. 2 is the exploded view of orbit connection device provided in an embodiment of the present invention；
Fig. 3 is the sectional view in Fig. 1 provided in an embodiment of the present invention at A-A；
Fig. 4 is the sectional view in Fig. 1 provided in an embodiment of the present invention at B-B；
Fig. 5 is the top view of orbit connection device provided in an embodiment of the present invention.
Description of symbols:
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it should be noted that when element is referred to as " being fixed on " or " being set to " another yuan
Part, it can be directly on the other element or indirectly on another element.It is known as and " connects when an element
In " another element, it can be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.
Referring to Figure 1 to Fig. 4, orbit connection device provided in an embodiment of the present invention is for connecting two adjacent orbits, definition
Two adjacent orbits are respectively the first track 200 and the second track 300, and first track 200 is towards second track
300 end face is equipped with the first connecting hole 201 being arranged along its length, and second track 300 is towards first track
200 end face is equipped with the second connecting hole 301 for being arranged along its length, the orbit connection device include tensioner screw 30,
Both ends are respectively for insertion into the cushion block 10 of first connecting hole 201 and second connecting hole 301 and both ends are respectively used to
It is inserted into the tightening piece 20 of first connecting hole 201 and second connecting hole 301, is located at described first on the tightening piece 20
Part between track 200 and second track 300 is equipped with the screw hole 27 that radially direction extends, the tensioner screw
30 are combined in the screw hole 27 and one end is held in the cushion block 10, cushion block 10 described in 30 pushing tow of tensioner screw so that
The cushion block 10 and the tightening piece 20 squeeze the inner wall of first connecting hole 201 and second connecting hole 301.
Referring to Figure 1 to Fig. 5, orbit connection device provided in an embodiment of the present invention include tightening piece 20, cushion block 10 and
Tensioner screw 30 is provided with screw hole 27 on tightening piece 20, when needing to connect two adjacent orbits, that is, needs to connect the first track
200 and when the second track 300, the both ends of tightening piece 20 and cushion block 10 only need to be inserted into the first connecting hole 201 and the second connection
In hole 301, then tensioner screw 30 is inserted into screw hole 27, and rotates, tensioner screw 30 can be by tightening piece 20 and cushion block 10
It opens, tightening piece 20 and cushion block 10 can move in the direction away from each other, and the outer surface of tightening piece 20 and cushion block 10 can support
The inner wall and compression of first connecting hole 201 and the second connecting hole 301, due to the effect of frictional force, the first track 200 and second
Track 300 can not relatively move, and just realize connection.Orbit connection device provided by the invention, only need to be by tensioner in connection
The both ends of block 20 and cushion block 10 are inserted into the first connecting hole 201 and the second connecting hole 301, and tensioner screw 30 is then screwed,
It is convenient and efficient, can Fast Installation disassembly, substantially increase the progress of construction.
Referring to Figure 1 to Fig. 2, further, the tightening piece 20 includes the first cylinder with the first periphery 211
21, the second cylinder 22 of the second periphery 221 is extended outwardly and had by one end of first cylinder 21 and by described
The other end of first cylinder 21 extends outwardly and the third cylinder 23 with third periphery 231, second periphery 221
It is less than the diameter of first periphery 211 with the diameter of the third periphery 231, second periphery 221 and described
One end face of the first cylinder 21 forms the first limited step 24, the third periphery 231 and first cylinder 21 it is another
End face forms the second limited step 25.The embodiment of the present invention on tightening piece 20 by being arranged the first limited step 24 and the second limit
Position step 25, so that during attachment rail attachment device, when the first connecting hole is inserted at the both ends of orbit connection device
201 and when the second connecting hole 301, it can quickly be positioned, that is, after the end face of two tracks supports on step, can screw
Tensioner screw 30 is conducive to the Fast Installation of orbit connection device.
Referring to Figure 1, further, first periphery 211 and first track 200 and second track
300 flush with outer surface.Based on this structure, when the idler wheel on inspection device passes through track link position, due to the first outer circle
The flush with outer surface in face 211 and the first track 200 and the second track 300 so that the first track 200 and the second track 300 it
Between for seamless connection, idler wheel smoothly can be rolled to orbit connection device from track, then smoothly be rolled into from orbit connection device
On track, vibration is reduced, improves the reliability of track connection.
Referring to Figure 1 to Fig. 3, further, the diameter of second periphery 221 and first connecting hole 201
Diameter is identical, and the diameter of the third periphery 231 is identical as the diameter of second connecting hole 301.It is to be appreciated that being based on
This structure, the second periphery 221 and third periphery 231 can be respectively and in the first connecting holes 201 and the second connecting hole 301
Wall is bonded comprehensively, reduces pressure suffered by 301 inner wall of the first connecting hole 201 and the second connecting hole, thus can be by tensioner
Screw 30 screws tighter, so that the first connecting hole 201 and 301 inner wall of the second connecting hole bear bigger pressure, is increased with this
Big frictional force, so that the connection of two tracks is relatively reliable.
Referring to Figure 1 to Fig. 2, further, the tightening piece 20 includes the first plane 26 towards the cushion block 10, institute
Stating cushion block 10 includes the second plane 11 towards the tightening piece 20 and parallel with first plane 26, the tensioner screw 30
It is combined in the screw hole 27 and passes through first plane 26 to be held in second plane 11.In the present embodiment
One plane 26 is parallel with the second plane 11, during installation, first can be bonded the first plane 26 and the second plane 11, pacify in this way
The relative position of tightening piece 20 and cushion block 10 has been set before dress, then tightening piece 20 and cushion block 10 can have been inserted simultaneously
Enter in two connecting holes, then screws tension bolt.It can be seen that by the first plane 26 of setting and the second plane 11, it can be by reality
It is inserted into while existing tightening piece 20 and cushion block 10, further improves the installation speed of orbit connection device.
Fig. 2 is referred to, further, 30 bottom of tensioner screw is equipped with the binding face for fitting in second plane 11
31.It is to be appreciated that can reduce the pressure that the second plane 11 is subject to by the way that binding face 31 is arranged, tensioner spiral shell can be increased in this way
Nail 30 screws dynamics so that tightening piece 20 and cushion block 10 to the interior wall pressure of the first connecting hole 201 and the second connecting hole 301 more
Tightly, the reliability of connection is further increased.
Referring to Figure 1, further, the tensioner screw 30 is sunk screw.Countersunk head spiral shell is set by tensioner screw 30
Nail causes to shake when the idler wheel of inspection car ground head of screw, effectively after avoiding 30 screw of tensioner screw protrusion screw hole 27
In the even running of inspection car.
Fig. 5 is referred to, further, the orbit connection device includes two tensioner screws 30, the tightening piece
It is set on 20 there are two the screw hole 27 for being respectively used to the two tensioner screws 30 of installation, two 30 holes of tensioner screw are along institute
The length direction column for stating track are set.Based on this structure, different tensioner screws 30 can be rotated respectively to adjust corresponding end
Connection dynamics, also, the multiple tensioner screws 30 of setting can further increase extruding force, and what raising orbit connection device connected can
By property.
Referring to Figure 1 and Fig. 2, further, 30 bottom of tensioner screw is tapered.Based on this structure, tensioner screw
The pyramidal structure of 30 bottoms can allow what people were more easier tensioner screw 30 is inserted into screw hole 27, further improve rail
The installation speed of road attachment device.
Referring to Figure 1 and Fig. 2, the present invention also provides a kind of rail assemblies, including the first track 200, the second track 300
And the orbit connection device that first track 200 is connected with second track 300, the orbit connection device are
Above-mentioned orbit connection device.Orbit connection device structure having the same in the orbit connection device and the various embodiments described above is special
Sign, and role is identical, does not repeat herein.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of orbit connection device, for connecting two adjacent orbits, define two adjacent orbits be respectively the first track and
Second track, first track are equipped with the first connecting hole being arranged along its length towards the end face of second track,
Second track is equipped with the second connecting hole being arranged along its length towards the end face of first track, and feature exists
It include that tensioner screw, both ends are respectively for insertion into first connecting hole and second connection in, the orbit connection device
The cushion block in hole and both ends are respectively for insertion into the tightening piece of first connecting hole and second connecting hole, the tightening piece
The upper part between first track and second track is equipped with the screw hole that radially direction extends, described to rise
Tight screw is combined in the screw hole and one end is held in the cushion block, and cushion block described in the tensioner screw pushing tow is so that described
Cushion block and the tightening piece squeeze the inner wall of first connecting hole and second connecting hole.
2. orbit connection device as described in claim 1, which is characterized in that the tightening piece includes having the first periphery
First cylinder is extended outwardly and the second cylinder with the second periphery and by described the by one end of first cylinder
The other end of one cylinder extends outwardly and the third cylinder with third periphery, outside second periphery and the third
The diameter of disc is less than the diameter of first periphery, and an end face of second periphery and first cylinder forms the
The other end of one limited step, the third periphery and first cylinder forms the second limited step.
3. orbit connection device as claimed in claim 2, which is characterized in that first periphery and first track and
The flush with outer surface of second track.
4. orbit connection device as claimed in claim 2, which is characterized in that the diameter of second periphery and described first
The diameter of connecting hole is identical, and the diameter of the third periphery is identical as the diameter of second connecting hole.
5. orbit connection device as described in claim 1, which is characterized in that the tightening piece includes towards the cushion block
One plane, the cushion block include the second plane towards the tightening piece and parallel with first plane, the tensioner screw
It is combined in the screw hole and passes through first plane to be held in second plane.
6. orbit connection device as claimed in claim 5, which is characterized in that tensioner screw bottom is described equipped with fitting in
The binding face of second plane.
7. orbit connection device as claimed in any one of claims 1 to 6, which is characterized in that the tensioner screw is countersunk head spiral shell
Nail.
8. orbit connection device as claimed in any one of claims 1 to 6, which is characterized in that the orbit connection device includes
Two tensioner screws are set on the tightening piece there are two the screw hole for being respectively used to the two tensioner screws of installation,
The two tensioner screw holes are set along the length direction column of the track.
9. orbit connection device as claimed in any one of claims 1 to 6, which is characterized in that tensioner screw bottom is in cone
Shape.
10. a kind of rail assembly, including the first track, the second track and first track is connected with second track
The orbit connection device connect, which is characterized in that the orbit connection device is track described in any one of claim 1-9 company
Connection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447822.8A CN108951315B (en) | 2017-06-14 | 2017-06-14 | Rail connecting device and rail assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447822.8A CN108951315B (en) | 2017-06-14 | 2017-06-14 | Rail connecting device and rail assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108951315A true CN108951315A (en) | 2018-12-07 |
| CN108951315B CN108951315B (en) | 2023-10-27 |
Family
ID=64495344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710447822.8A Active CN108951315B (en) | 2017-06-14 | 2017-06-14 | Rail connecting device and rail assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108951315B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725838A (en) * | 2019-09-23 | 2020-01-24 | 山东康威通信技术股份有限公司 | Expansion type quick connecting piece for circular tube track, circular tube and working method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE597977C (en) * | 1932-02-12 | 1934-06-04 | Hans Pischke | Rail joint connection by means of mortising the rail ends |
| DE581959C (en) * | 1934-11-06 | Max Lautner | Rail joint connection | |
| JPH06280207A (en) * | 1993-03-26 | 1994-10-04 | Mitsubishi Electric Corp | Rail for traveling carrier |
| CN201148579Y (en) * | 2007-04-13 | 2008-11-12 | 吕俊学 | Railway rail with continuous connecting rail head working face |
| CN202176846U (en) * | 2011-07-08 | 2012-03-28 | 洪跃定 | Connector |
| CN102537566A (en) * | 2012-02-28 | 2012-07-04 | 苏州市吴中区东方成套电器设备有限公司 | Pipe fitting rapid to connect |
| CN103669128A (en) * | 2012-09-15 | 2014-03-26 | 淮南市矿用电子技术研究所 | Quick joint for track |
| CN105234551A (en) * | 2015-09-01 | 2016-01-13 | 姜海 | Sealing device and sealing method for ends of thin-walled stainless steel pipe |
| CN206971011U (en) * | 2017-06-14 | 2018-02-06 | 深圳市朗驰欣创科技股份有限公司 | Orbit connection device and rail assembly |
-
2017
- 2017-06-14 CN CN201710447822.8A patent/CN108951315B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE581959C (en) * | 1934-11-06 | Max Lautner | Rail joint connection | |
| DE597977C (en) * | 1932-02-12 | 1934-06-04 | Hans Pischke | Rail joint connection by means of mortising the rail ends |
| JPH06280207A (en) * | 1993-03-26 | 1994-10-04 | Mitsubishi Electric Corp | Rail for traveling carrier |
| CN201148579Y (en) * | 2007-04-13 | 2008-11-12 | 吕俊学 | Railway rail with continuous connecting rail head working face |
| CN202176846U (en) * | 2011-07-08 | 2012-03-28 | 洪跃定 | Connector |
| CN102537566A (en) * | 2012-02-28 | 2012-07-04 | 苏州市吴中区东方成套电器设备有限公司 | Pipe fitting rapid to connect |
| CN103669128A (en) * | 2012-09-15 | 2014-03-26 | 淮南市矿用电子技术研究所 | Quick joint for track |
| CN105234551A (en) * | 2015-09-01 | 2016-01-13 | 姜海 | Sealing device and sealing method for ends of thin-walled stainless steel pipe |
| CN206971011U (en) * | 2017-06-14 | 2018-02-06 | 深圳市朗驰欣创科技股份有限公司 | Orbit connection device and rail assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725838A (en) * | 2019-09-23 | 2020-01-24 | 山东康威通信技术股份有限公司 | Expansion type quick connecting piece for circular tube track, circular tube and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108951315B (en) | 2023-10-27 |
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Address after: B501, Building F2, TCL Science Park, No. 1001, Zhongshanyuan Road, Shuguang Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee after: LAUNCH DIGITAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 518000 Third Floor, Fengyun Building, Galaxy, No. 5 Xinxi Road, North District, Nanshan High-tech Park, Shenzhen City, Guangdong Province Patentee before: LAUNCH DIGITAL TECHNOLOGY Co.,Ltd. Country or region before: China |
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