CN111431110A - Cable distribution box - Google Patents
Cable distribution box Download PDFInfo
- Publication number
- CN111431110A CN111431110A CN202010481350.XA CN202010481350A CN111431110A CN 111431110 A CN111431110 A CN 111431110A CN 202010481350 A CN202010481350 A CN 202010481350A CN 111431110 A CN111431110 A CN 111431110A
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- CN
- China
- Prior art keywords
- block
- plate
- clamping
- junction box
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 28
- 230000000694 effects Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 abstract description 10
- 238000005457 optimization Methods 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/081—Bases, casings or covers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/03—Cooling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a cable distribution box, which structurally comprises a protective cover, a junction box, a heat dissipation bin, a two-way sleeve and a telescopic rod, wherein the protective cover is hinged with the junction box, the heat dissipation bin is welded with the junction box, one end of the telescopic rod is movably clamped with the protective cover, the other end of the telescopic rod is connected with the junction box, the two-way sleeve is embedded and fixed at the inner wall of the junction box, the elastic strip generates downward thrust to the linkage plates, so that the linkage plates on the two sides can clamp and fix the cable, the condition that the double-pass sleeve is not easy to fix the cable with smaller diameter is effectively avoided, the sliding block on the clamping mechanism can be contracted inwards along the frame body by the thrust generated by the clamping block inserted into the clamping mechanism on the sliding block on the clamping mechanism, therefore, the clamping block can smoothly enter the clamping mechanism, and the fixed surface on the sliding block can clamp the clamping block through the thrust generated by the elastic strip on the sliding block.
Description
Technical Field
The invention relates to the field of cables, in particular to a cable distribution box.
Background
The cable tapping box is mainly used for tapping, branching, continuing and converting a circuit of a cable line, and one end of a cable is connected to the front end of a double-pass sleeve, so that electric energy conducted by the cable can be led out through the rear end of the double-pass sleeve, the cable tapping box is widely applied to the cable laying industry, and based on the description, the inventor finds that the existing cable tapping box mainly has the following defects, for example:
because the specifications of the two-way sleeves on the cable tapping box are the same, the two-way sleeves can only connect cables with the same diameter, so that when cables with different diameters need to be connected, a gap is generated between the cable with a smaller diameter and the inner wall of the two-way sleeves to cause the situation that the electric energy conduction of the cable tapping line on the cable is unstable.
Disclosure of Invention
In order to solve the problems, the invention provides a cable distribution box.
In order to achieve the purpose, the invention is realized by the following technical scheme: a cable distribution box structurally comprises a protective cover, a junction box, a heat dissipation bin, a bi-pass sleeve and a telescopic rod, wherein the protective cover is hinged with the junction box, the heat dissipation bin is welded with the junction box, one end of the telescopic rod is movably clamped with the protective cover, the other end of the telescopic rod is connected with the junction box, and the bi-pass sleeve is embedded and fixed on the inner wall of the junction box; the double-pass sleeve comprises an outer frame, a power connection plate, a clamping mechanism, a clamping block and a clamping block, wherein the power connection plate is fixedly embedded at the right side position of the inner wall of the outer frame, the clamping mechanism and the outer frame are of an integrated structure, the clamping block is connected with the clamping block, and the clamping block is movably clamped with the outer frame.
As a further optimization of the invention, the clamping block comprises a connecting block, an elastic strip, a linkage plate and a stressed plate, wherein the elastic strip is arranged between the connecting block and the linkage plate, the linkage plate is movably clamped with the stressed plate, the stressed plate is hinged with the connecting block, and the elastic strip is made of spring steel with strong elasticity.
As a further optimization of the invention, the linkage plate comprises a plate surface, four boosting blocks and four rotating rollers, wherein the boosting blocks and the rotating rollers are of an integrated structure, the rotating rollers are movably clamped with the plate surface, and the four boosting blocks are uniformly distributed on the rotating rollers in parallel.
As a further optimization of the invention, the boosting block comprises a block body, a combination block and an anti-skid block, wherein the combination block and the block body are of an integrated structure, the anti-skid block is fixedly embedded in the outer surface of the combination block, the anti-skid block is made of alloy steel with hard texture, and the anti-skid block is in an inclined state on the combination block.
As a further optimization of the invention, the clamping mechanism comprises a frame body, an elastic strip, a plate body, two sliding blocks and a fixing surface, wherein the frame body is embedded and fixed at the right side position of the plate body, the elastic strip is installed between the frame body and the sliding blocks, the sliding blocks are in clearance fit with the frame body, the fixing surface and the sliding blocks are of an integrated structure, and the two sliding blocks are uniformly and symmetrically distributed on the inner side of the frame body.
As a further optimization of the invention, the fixing surface comprises a pressing surface and salient points, the salient points are embedded and fixed at the bottom surface of the pressing surface, and the salient points are of cylindrical structures.
As a further optimization of the present invention, the pressing device comprises a receiving block, a pressing plate and an elastic sheet, wherein the pressing plate is hinged with the receiving block, the elastic sheet is installed between the receiving block and the pressing plate, and when an object slides outwards, the pressing plate can swing downwards along the receiving block through the close fit between the object and the pressing plate.
The invention has the following beneficial effects:
1. produce inward thrust to the clamping block on the bi-pass sleeve pipe through the inside cable of crowded bi-pass sleeve pipe, can make the atress board on the clamping block upwards swing along linking piece, and the thrust that produces the linkage board when swinging through the atress board, can make the linkage board stretch into to the inside of bi-pass sleeve pipe along the atress board, and can rise when stretching into, thereby can bring the cable into the inside of bi-pass sleeve pipe, and produce decurrent thrust to the linkage board through the elastic strip, can make the linkage board on both sides carry out the clamping to the cable, the effectual bi-pass sleeve pipe of having avoided is difficult to carrying out the condition fixed to the less cable in footpath.
2. The sliding block can be enabled to contract inwards along the frame body through thrust generated by the sliding block inserted into the clamping mechanism on the clamping mechanism, so that the clamping block can smoothly enter the clamping mechanism, and the fixed surface on the sliding block can clamp the clamping block through the thrust generated by the elastic strip on the sliding block, thereby effectively avoiding the situation that the clamping block cannot be clamped with the clamping mechanism tightly and slide out due to abrasion in the process that the clamping block is pulled out and inserted in the clamping mechanism for a long time.
Drawings
Fig. 1 is a schematic structural diagram of a cable distribution box according to the present invention.
FIG. 2 is a side view of a two-way cannula of the present invention in half cross-section.
Figure 3 is a side view cross-sectional schematic of a clamping block of the present invention.
FIG. 4 is a side view of a linkage plate of the present invention.
FIG. 5 is a schematic structural diagram of a side view cross section of the boosting block of the present invention.
FIG. 6 is a side view of a half-section of the fastening mechanism of the present invention.
Fig. 7 is a schematic structural view of the fixing surface of the present invention.
FIG. 8 is a side view of a bump according to the present invention.
In the figure: the protective cover-1, the junction box-2, the heat dissipation bin-3, the double-pass sleeve-4, the telescopic rod-5, the outer frame-41, the electric connection plate-42, the clamping mechanism-43, the clamping block-44, the clamping block-45, the connecting block-a 1, the elastic strip-a 2, the linkage plate-a 3, the stress plate-a 4, the plate surface-a 31, the boosting block-a 32, the rotating roller-a 33, the block-b 1, the combining block-b 2, the anti-slip block-b 3, the frame-c 1, the elastic strip-c 2, the sliding block-c 3, the sliding block-c 4, the fixing surface-c 5, the pressure surface-c 51, the pressing bump-c 52, the bearing block-d 1, the plate-d 2 and the elastic sheet-d 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-5:
the invention provides a cable distribution box which structurally comprises a protective cover 1, a junction box 2, a heat dissipation bin 3, a bi-pass sleeve 4 and a telescopic rod 5, wherein the protective cover 1 is hinged with the junction box 2, the heat dissipation bin 3 is welded with the junction box 2, one end of the telescopic rod 5 is movably clamped with the protective cover 1, the other end of the telescopic rod 5 is connected with the junction box 2, and the bi-pass sleeve 4 is fixedly embedded in the inner wall of the junction box 2; the double-pass sleeve 4 comprises an outer frame 41, an electric plate 42, a clamping mechanism 43, a fixture block 44 and a clamping block 45, wherein the electric plate 42 is embedded and fixed at the right side position of the inner wall of the outer frame 41, the clamping mechanism 43 and the outer frame 41 are of an integrated structure, the fixture block 44 is connected with the clamping block 45, and the clamping block 45 is movably clamped with the outer frame 41.
The clamping block 45 comprises an engaging block a1, an elastic strip a2, a linkage plate a3 and a stress plate a4, the elastic strip a2 is installed between the engaging block a1 and the linkage plate a3, the linkage plate a3 is movably clamped with the stress plate a4, the stress plate a4 is hinged to the engaging block a1, the elastic strip a2 is made of spring steel with high elasticity, inward thrust is generated on the stress plate a4 through an extruded cable, the stress plate a4 can swing inwards along the engaging block a1, and the stress plate a4 can push the linkage plate a3 to extend inwards while swinging, so that the cable is brought into the interior of the mechanism through the linkage plate a 3.
The linkage plate a3 comprises a plate surface a31, a boosting block a32 and a rotating roller a33, the boosting block a32 and the rotating roller a33 are of an integrated structure, the rotating roller a33 is movably clamped with the plate surface a31, the four boosting blocks a32 are arranged and evenly distributed on the rotating roller a33 in parallel, and the boosting block a32 can rotate along the plate surface a31 under the matching of the rotating roller a33 by rotating a cable attached to the boosting block a32, so that the cable clamped in the mechanism can be pushed out by the boosting block a 32.
The boosting block a32 comprises a block body b1, a combination block b2 and an anti-slip block b3, the combination block b2 and the block body b1 are of an integrated structure, the anti-slip block b3 is embedded in the outer surface of the combination block b2, the anti-slip block b3 is made of hard alloy steel, and the anti-slip block b3 is in an inclined state on the combination block b2, so that the situation that the cable in the mechanism slides out and loosens outwards can be prevented.
The detailed use method and action of the embodiment are as follows:
in the invention, as the specifications of the two-way sleeves 4 on the cable distribution box are the same, the two-way sleeves 4 can only wire cables with the same diameter, so that when cables with different diameters need to be wired, a gap between the cable with the smaller diameter and the inner wall of the two-way sleeve 4 is loosened, the clamping block 45 on the two-way sleeve 4 can effectively solve the problem, the cable squeezed into the two-way sleeve 4 generates inward thrust on the clamping block 45 on the two-way sleeve 4, the stress plate a4 on the clamping block 45 can swing upwards along the connecting block a1, and the thrust generated on the linkage plate a3 when the stress plate a4 swings can enable the linkage plate a3 to extend into the interior of the two-way sleeve 4 along the stress plate a4, and can follow the swinging of the stress plate a4 to rise while the linkage plate a3 extends, therefore, a cable can enter between the two linkage plates a3, the linkage plates a3 on two sides can clamp the cable by generating downward thrust on the linkage plates a3 through the elastic strips a2, the clamping block 45 can slide inwards along the outer frame 41 through continuous squeezing of the cable, the linkage plates a3 can push the stress plates a4 backwards to swing outwards until the head of the cable can be attached to the electric connection plate 42, the situation that the cable entering the double-passage sleeve 4 slides outwards and loosens can be prevented through the anti-slip blocks b3 on the boosting blocks a32, the situation that the double-passage sleeve 4 is not easy to fix the cable with a small diameter is effectively avoided, when the cable inside the double-passage sleeve 4 needs to be pulled out, the boosting blocks a32 closely attached to the cable can drive the rotating rollers a33 to rotate along the plate surfaces a31 through rotating the cables inside the double-passage sleeve 4 by rotating and inserting the cables inside the double-passage sleeve 4, thereby enabling the push-up block a32 to push out the cable step by step.
Example 2
As shown in fig. 6-8:
the locking mechanism 43 includes a frame c1, an elastic bar c2, a plate c3, a sliding block c4, and a fixed surface c5, the frame c1 is embedded in the right side position of the plate c3, the elastic bar c2 is installed between the frame c1 and the sliding block c4, the sliding block c4 is in clearance fit with the frame c1, the fixed surface c5 and the sliding block c4 are integrated, the sliding blocks c4 are provided with two blocks, the two blocks are uniformly distributed inside the frame c1, and the two blocks c4 can slide and contract inwards along the frame c1 by the pushing force of the inserted object on the sliding block of the fixed surface c5, so that the object can be inserted into the inner position of the frame c 1.
The fixing surface c5 comprises a pressing surface c51 and a salient point c52, the salient point c52 is embedded in the bottom surface of the pressing surface c51, and the salient point c52 is of a cylindrical structure and can be tightly attached to the surface of an object through the pressing of a mechanism, so that the fixing effect of the mechanism on the object can be improved.
The c32 comprises a receiving block d1, a pressing plate d2 and an elastic sheet d3, the pressing plate d2 is hinged to the receiving block d1, the elastic sheet d3 is installed between the receiving block d1 and the pressing plate d2, when an object slides outwards, the pressing plate d2 can swing downwards along the receiving block d1 through close contact between the object and the pressing plate d2, and therefore the pressing force of the pressing plate d2 on the object can be enhanced, and the phenomenon that the object slides out automatically is effectively avoided.
The detailed use method and action of the embodiment are as follows:
in the invention, after the clamping block 44 on the double-pass sleeve 4 is used for a long time, the clamping block 44 is easy to wear through insertion and extraction and oxidation of air on the clamping mechanism 43, so that the clamping with the clamping mechanism 43 is not tight enough, the sliding block c4 on the clamping mechanism 43 is matched with the fixed surface c5, so that the problems can be effectively solved, the clamping block 44 can smoothly enter the clamping mechanism 43 through the thrust generated by the clamping block 44 inserted into the clamping mechanism 43 on the sliding block c4 on the clamping mechanism 43, the sliding block c4 can contract inwards along the frame c1, the sliding block c 44 can smoothly enter the clamping mechanism 43, the sliding block c2 can generate the thrust on the c4, the fixed surface c5 on the sliding block c4 can generate pressure on the outer surface of the clamping block 44, and the convex point c52 on the fixed surface c5 can be tightly attached to the outer surface of the clamping block 44 through the thrust generated by the sliding block c4, the process that the fixture block 44 is pulled out and inserted in the clamping mechanism 43 for a long time is effectively avoided, the fixture block 44 is easily caused to be insufficiently tightly slipped out of the clamping mechanism 43 due to abrasion, and when the fixture block 44 slides outwards, the fixture block 44 is tightly attached to the pressing plate d2, the pressing plate d2 can be driven to swing downwards along the bearing block d1, so that the pressing force of the pressing plate d2 on a cable can be enhanced, the surface abrasion of the fixture block 44 is effectively avoided to be uneven, the clamping effect of the fixing surface c5 on the fixture block 44 is reduced, and the fixture block 44 is automatically slipped out.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (7)
1. The utility model provides a cable distribution box, its structure includes visor (1), junction box (2), heat dissipation storehouse (3), bi-pass sleeve pipe (4), telescopic link (5), visor (1) and junction box (2) hinged joint, heat dissipation storehouse (3) welds with junction box (2) mutually, the one end and the visor (1) activity block of telescopic link (5), and the other end of telescopic link (5) is connected its characterized in that with junction box (2): the bi-pass sleeve (4) is embedded and fixed at the inner wall of the junction box (2);
the double-pass sleeve (4) comprises an outer frame (41), an electric connection plate (42), a clamping and fixing mechanism (43), a clamping block (44) and a clamping block (45), wherein the electric connection plate (42) is embedded and fixed at the right side position of the inner wall of the outer frame (41), the clamping and fixing mechanism (43) and the outer frame (41) are of an integrated structure, the clamping block (44) is connected with the clamping block (45), and the clamping block (45) is movably clamped with the outer frame (41).
2. A cable distribution box according to claim 1, wherein: the clamping block (45) comprises an engagement block (a1), an elastic strip (a2), a linkage plate (a3) and a stress plate (a4), wherein the elastic strip (a2) is installed between the engagement block (a1) and the linkage plate (a3), the linkage plate (a3) is movably clamped with the stress plate (a4), and the stress plate (a4) is hinged with the engagement block (a 1).
3. A cable distribution box according to claim 2, wherein: the linkage plate (a3) comprises a plate surface (a31), a boosting block (a32) and a rotating roller (a33), the boosting block (a32) and the rotating roller (a33) are of an integrated structure, and the rotating roller (a33) is movably clamped with the plate surface (a 31).
4. A cable distribution box according to claim 3, wherein: the boosting block (a32) comprises a block body (b1), a combination block (b2) and an anti-slip block (b3), the combination block (b2) and the block body (b1) are of an integrated structure, and the anti-slip block (b3) is embedded and fixed at the outer surface position of the combination block (b 2).
5. A cable distribution box according to claim 1, wherein: the clamping mechanism (43) comprises a frame body (c1), an elastic strip (c2), a plate body (c3), a sliding block (c4) and a fixing surface (c5), wherein the frame body (c1) is embedded in the right side position of the plate body (c3), the elastic strip (c2) is installed between the frame body (c1) and the sliding block (c4), the sliding block (c4) is in clearance fit with the frame body (c1), and the fixing surface (c5) and the sliding block (c4) are of an integrated structure.
6. A cable distribution box according to claim 5, wherein: the fixing surface (c5) comprises a pressing surface (c51) and a salient point (c52), and the salient point (c52) is embedded and fixed at the bottom surface position of the pressing surface (c 51).
7. A cable distribution box according to claim 6, wherein: the (c32) comprises a bearing block (d1), a pressing plate (d2) and an elastic sheet (d3), the pressing plate (d2) is hinged with the bearing block (d1), and the elastic sheet (d3) is installed between the bearing block (d1) and the pressing plate (d 2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481350.XA CN111431110B (en) | 2020-05-31 | 2020-05-31 | Cable distribution box |
| CN202011543823.0A CN112736804A (en) | 2020-05-31 | 2020-05-31 | Cable distribution box and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481350.XA CN111431110B (en) | 2020-05-31 | 2020-05-31 | Cable distribution box |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011543823.0A Division CN112736804A (en) | 2020-05-31 | 2020-05-31 | Cable distribution box and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111431110A true CN111431110A (en) | 2020-07-17 |
| CN111431110B CN111431110B (en) | 2021-07-02 |
Family
ID=71553276
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011543823.0A Withdrawn CN112736804A (en) | 2020-05-31 | 2020-05-31 | Cable distribution box and use method |
| CN202010481350.XA Active CN111431110B (en) | 2020-05-31 | 2020-05-31 | Cable distribution box |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011543823.0A Withdrawn CN112736804A (en) | 2020-05-31 | 2020-05-31 | Cable distribution box and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112736804A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111787722A (en) * | 2020-07-27 | 2020-10-16 | 菏泽飞鸟新能源有限公司 | 5G mobile communication signal tester |
| CN111799675A (en) * | 2020-07-30 | 2020-10-20 | 成都常瑞满郎商贸有限公司 | Fire pump control cabinet started in voltage reduction mode |
| CN112952685A (en) * | 2021-03-26 | 2021-06-11 | 邹腾腾 | Automatic switching circuit of power supply system |
| CN113131346A (en) * | 2021-04-15 | 2021-07-16 | 张强俊 | Low-voltage power type power distribution cabinet |
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| CN113131346B (en) * | 2021-04-15 | 2022-10-18 | 山东中联电气有限公司 | Low-voltage power type power distribution cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112736804A (en) | 2021-04-30 |
| CN111431110B (en) | 2021-07-02 |
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Effective date of registration: 20210609 Address after: 226600 no.88-89, Changjiang West Road, Hai'an town, Hai'an County, Nantong City, Jiangsu Province Applicant after: NANTONG ZHONGYAO DRAKA ELEVATOR PRODUCT Co.,Ltd. Address before: 100020 No.11, Datun Road, Chaoyang District, Beijing Applicant before: Ye Fengwen |
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