CN212366247U - T-shaped branch joint for high-voltage coaxial power cable - Google Patents
T-shaped branch joint for high-voltage coaxial power cable Download PDFInfo
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- CN212366247U CN212366247U CN202021454711.3U CN202021454711U CN212366247U CN 212366247 U CN212366247 U CN 212366247U CN 202021454711 U CN202021454711 U CN 202021454711U CN 212366247 U CN212366247 U CN 212366247U
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- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000035882 stress Effects 0.000 description 37
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- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- 238000000605 extraction Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a high pressure is T type branch joint for coaxial power cable for connect single core cable simultaneously and be equipped with the coaxial cable of inner conductor and outer conductor, connect main part subassembly, two high-pressure coaxial power cable plug heads and two high-pressure branch power cable plug heads including the branch. According to the utility model discloses a T type branch connects for high pressure coaxial power cable can realize the connection of two coaxial cable, and realize coaxial cable and the being connected of single core cable, in order when connecting the coaxial cable of two different sectional areas, can connect the single core cable of two different sectional areas through two high pressure branch power cable plug heads, the single core cable of two different sectional areas is connected with coaxial cable's inner conductor and outer conductor respectively, in order to shunt, thereby guarantee the stable circulation of electric current.
Description
Technical Field
The utility model relates to a cable accessories product field, concretely relates to high pressure is T type branch joint for coaxial power cable.
Background
With the continuous development of science and technology and the continuous progress of society, the demand of society on electric power is also increasing. At present, cable power supply is a main power supply mode, power transmission has high requirements on cables, and the stable and reliable cables not only ensure the stability and reliability of power transmission, but also have important significance on the stability of life generation and the safety of people. The single-core common cable is the main type of the current cable, but during large current transmission, the single-core common cable has various problems of safety, efficiency and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a high pressure is T type branch joint for coaxial power cable.
According to the utility model discloses T type branch connects for high-pressure coaxial power cable for connect single core cable and be equipped with the coaxial cable of inner conductor and outer conductor simultaneously, include: the branch joint main body assembly is provided with a first conductive contact seat, a second conductive contact seat, two third conductive contact seats and a connecting cylinder, the connecting cylinder is a cylinder body with the middle part penetrating through, two bypass holes are formed in the peripheral side of the connecting cylinder, and the opening end of the connecting cylinder is used for connecting a cable plug head; the two high-voltage coaxial power cable plug heads are respectively plugged at the upper end and the lower end of the connecting cylinder and used for fixing two coaxial cables, and each high-voltage coaxial power cable plug head is provided with an inner conductor connecting device and an outer conductor connecting device, wherein the inner conductor connecting device is used for fixing the inner conductor and electrically connecting the inner conductor with the first conductive contact base, and the outer conductor connecting device is used for fixing the outer conductor and electrically connecting the outer conductor with the second conductive contact base; and the two high-voltage branch power cable plug heads are respectively plugged in the two bypass holes of the connecting cylinder and used for fixing the two single-core cables and electrically connecting the two single-core cables with the two third conductive contact seats respectively, and the two third conductive contact seats are electrically connected with the inner conductor and the outer conductor respectively.
According to the utility model discloses high pressure is T type branch joint for coaxial power cable has following technological effect at least: through setting up the connecting cylinder of seting up the by pass hole, with both ends insert high voltage coaxial power cable plug head about the connecting cylinder, and insert high voltage branch power cable plug head in the by pass hole, two coaxial cable's connection has both been realized, coaxial cable and single core cable's connection has been realized simultaneously, with when connecting the coaxial cable of two different sectional areas, can connect the single core cable of two different sectional areas through two high voltage branch power cable plug heads, the single core cable of two different sectional areas is connected with coaxial cable's inner conductor and outer conductor respectively, in order to shunt, thereby guarantee the stable circulation of electric current.
According to some embodiments of the present invention, the inner conductor connecting device comprises an inner conductor connecting fitting, an internal stress cone, an inner conductor stopping device and an internal holding device, the inner conductor connecting fitting is used for electrically connecting the inner conductor with the first conductive contact base; the internal stress cone is arranged below the inner conductor connecting hardware fitting and sleeved outside the inner conductor; the inner conductor stopping device is sleeved on the inner conductor between the inner conductor connecting fitting and the internal stress cone and used for limiting the insertion depth of the inner conductor and preventing the inner conductor from retreating; the internal supporting device is used for pre-tightening the internal stress cone.
According to some embodiments of the present invention, the outer conductor connecting device comprises an outer conductor connecting hardware fitting, an outer stress cone, an outer conductor stopper device, and an outer holding device, the outer conductor connecting hardware fitting is disposed below the inner conductor connecting device for electrically connecting the outer conductor with the second conductive contact base; the outer stress cone is arranged below the outer conductor connecting hardware fitting and sleeved outside the outer conductor; the outer conductor stopping device is sleeved on the outer conductor between the outer conductor connecting fitting and the outer stress cone and used for limiting the insertion depth of the outer conductor and preventing the outer conductor from retreating; the outer supporting device is used for pre-tightening the outer stress cone.
According to some embodiments of the present invention, the inner holding device is a first spring, and both ends of the first spring are respectively abutted against the inner stress cone and the outer conductor connecting device.
According to the utility model discloses a some embodiments, hold in the palm tight device outward and include second spring and tail pipe, the both ends of second spring butt respectively the external stress awl with the tail pipe, the tail pipe is fixed on the branch connects main part subassembly.
According to some embodiments of the utility model, the tail pipe with branch connects main part subassembly junction to be equipped with sealed the pad.
According to some embodiments of the utility model, the branch connects main part subassembly still to be equipped with insulating main part, just insulating main part sets up first electrically conductive contact base, the electrically conductive contact base of second and connecting cylinder are outside.
According to some embodiments of the invention, the insulating main body is further provided with a metal protective shell.
According to some embodiments of the invention, the insulating main body and the metal protective shell between still be equipped with semi-conductive epoxy.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged view of a part of the structure of the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "disposed on", "disposed on" or "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A T-branch joint for a high-voltage coaxial power cable according to an embodiment of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1, according to the utility model discloses T type branch connects for high-pressure coaxial power cable for connect single core cable 104 simultaneously and be equipped with inner conductor 101 and outer conductor 102's coaxial cable 103, including branch connects main part subassembly 100, two high-pressure coaxial power cable plug heads 200 and high-pressure branch power cable plug head 300. It is conceivable that inner conductor 101 is provided with inner insulation 105, outer conductor 102 is provided with outer insulation 106, and inner conductor 101 and outer conductor 102 are coaxially arranged, and inner conductor 101, inner insulation 105, outer conductor 102 and outer insulation 106 are arranged in this order from the axis center to the outside.
The branch joint main body assembly 100 is provided with a first conductive contact seat 110, a second conductive contact seat 120, two third conductive contact seats 130 and a connecting cylinder 140, the connecting cylinder 140 is a cylinder body with a middle part penetrating through, two bypass holes are formed in the periphery of the connecting cylinder 140, and the open end of the connecting cylinder 140 is used for connecting a cable plug.
The two high-voltage coaxial power cable plug connectors 200 are respectively plugged into the upper and lower ends of the connecting cylinder 140 for fixing the two coaxial cables 103, and are provided with an inner conductor connecting device 210 and an outer conductor connecting device 220, the inner conductor connecting device 210 is used for fixing the inner conductor 101 and electrically connecting the inner conductor 101 with the first conductive contact base 110, and the outer conductor connecting device 220 is used for fixing the outer conductor 102 and electrically connecting the outer conductor 102 with the second conductive contact base 120. It is conceivable that the first conductive contact 110 is cylindrical and provided in the connecting cylinder 140 for connecting the inner conductors 101 of the two coaxial cables 103; the second conductive contact base 120 is divided into an upper portion and a lower portion, and the connecting cylinder 140 is located between the upper portion and the lower portion of the second conductive contact base 120 and electrically connects the two portions of the second conductive contact base 120, so as to connect the outer conductors 102 of the two coaxial cables 103.
Two high-voltage branch power cable plug heads 300 are respectively plugged in two bypass holes of the connecting cylinder 140, and are used for fixing two single-core cables 104 and electrically connecting the two single-core cables 104 with two third conductive contact seats 130 respectively, the two third conductive contact seats 130 are electrically connected with the inner conductor 101 and the outer conductor 102 respectively, so that when two coaxial cables with different sectional areas are connected, the two single-core cables with different sectional areas can be connected through the two high-voltage branch power cable plug heads 300, the two single-core cables with different sectional areas are connected with the inner conductor and the outer conductor of the coaxial cable respectively, so as to shunt, and therefore stable circulation of current is guaranteed.
In some embodiments of the present invention, the inner conductor connecting device 210 includes an inner conductor connecting hardware 211, an internal stress cone 212, an inner conductor stopping device 213, and an inner tightening device 214, the inner conductor connecting hardware 211 is used to electrically connect the inner conductor 101 with the first conductive contact base 110; the internal stress cone 212 is arranged below the inner conductor connecting hardware fitting 211 and sleeved outside the inner conductor 101; the inner conductor stopper 213 is sleeved on the inner conductor 101 between the inner conductor connecting fitting 211 and the internal stress cone 212 and is used for limiting the insertion depth of the inner conductor 101 and preventing the inner conductor 101 from retreating; an internal bracing device 214 is used to pre-tension the internal stress cone 212.
In some embodiments of the present invention, the outer conductor connecting device 220 includes an outer conductor connecting fitting 221, an outer stress cone 222, an outer conductor stopping device 223 and an outer holding device 224, the outer conductor connecting fitting 221 is disposed below the inner conductor connecting device 210 for electrically connecting the outer conductor 102 with the second conductive contact base 120; the outer stress cone 222 is disposed below the outer conductor connecting fitting 221 and sleeved outside the outer conductor 102; the outer conductor stopper 223 is sleeved on the outer conductor 102 between the outer conductor connecting fitting 221 and the outer stress cone 222, and is used for limiting the insertion depth of the outer conductor 102 and preventing the outer conductor 102 from retreating; the outer tightening device 224 serves to pre-tighten the outer stress cone 222.
It is conceivable that the inner conductor link fitting 200 is provided with a conductive plate connected to the first conductive contact seat 110, and the outer conductor link fitting 221 is provided with a conductive plate connected to the second conductive contact seat 120.
It is conceivable that the internal stress cone 212 and the external stress cone 222 are both sleeves having external conical surfaces to effectively improve the electric field distribution at the cable fracture by a geometric type electrical stress control method, which is a conventional technique, such as a cable intermediate joint for rapid repair of a cable disclosed in patent publication "CN 207442419U", and the related structure of the stress cones is described. As shown in fig. 2, the inner stress cone 212 and the outer stress cone 222 are tapered to mate with the insulator body 150.
It is conceivable that the principle of the structure of the high-voltage branch power cable plug 300 for fixing the single core cable 104 is common knowledge, and the related structure is described in the above-mentioned patent publication "CN 207442419U", which is a cable intermediate joint for quick repair.
In some embodiments of the present invention, as shown in fig. 2, the inner conductor stopper 213 and the outer conductor stopper 223 are both ring-shaped, the first conductive contact base 110 and the second conductive contact base 120 are respectively located above the inner conductor stopper 213 and above the outer conductor stopper 223, and are respectively provided with the inner hole 111 and the outer hole 121, the inner conductor 101 supports the inner conductor stopper 213, and the outer diameter of the inner conductor stopper 213 is greater than the inner diameter of the inner hole 111, so the inner conductor stopper 213 cannot be inserted into the inner hole 111, and the inner conductor 101 abuts against the inner conductor stopper 213 and cannot go deep, thereby preventing the inner conductor 101 from being inserted too deep; the outer stress cone 222 holds the outer conductor stopper 223, and the outer diameter of the outer conductor stopper 223 is larger than the inner diameter of the outer hole 121, so that the outer conductor stopper 223 cannot be inserted into the outer hole 121, and the outer conductor 102 cannot go deep by abutting against the outer conductor stopper 223, thereby preventing the outer conductor 102 from being inserted too deep. It is contemplated that inner conductor stop 213 and outer conductor stop 223 are held by inner insulation layer 105 and outer insulation layer 106, respectively.
In some embodiments of the present invention, as shown in fig. 2, the inner conductor locking device 213 and the outer conductor locking device 223 are both ring-shaped, the inner stress cone 212 and the outer stress cone 222 respectively support the inner conductor locking device 213 and the outer conductor locking device 223, the outer diameter of the inner conductor link fitting 211 is greater than the inner diameter of the inner conductor locking device 213, the outer diameter of the outer conductor link fitting 221 is greater than the inner diameter of the outer conductor locking device 223, so the inner conductor link fitting 211 cannot pass through the inner conductor locking device 213, and the outer conductor link fitting 221 cannot pass through the outer conductor locking device 223, and the inner stress cone 212 and the outer stress cone 222 are respectively supported upwards by the inner locking device 214 and the outer locking device 224, which effectively prevents the inner conductor 101 and the outer conductor 102 from coming off. In addition, a cable intermediate joint for rapid repair, as disclosed in the above-mentioned patent publication No. CN207442419U, also describes the related structure of the stopping device.
In some embodiments of the present invention, as shown in fig. 2, the inner supporting device 214 is a first spring, and two ends of the first spring respectively abut against the inner stress cone 212 and the outer conductor connecting device 220, so as to ensure the constant pressure of the inner stress cone 212 when the inner stress cone 212 is aged by pressing the inner stress cone 212, thereby preventing the inner stress cone 212 from being loosened to affect the performance.
In some embodiments of the present invention, the outer supporting device 224 includes a second spring 225 and a tail pipe 226, two ends of the second spring 225 respectively abut against the outer stress cone 222 and the tail pipe 226, and the outer stress cone 222 is pressed to ensure the constant pressure of the outer stress cone 222 when the outer stress cone 222 is aged, so as to prevent the outer stress cone 222 from being loosened to affect the performance; the tail pipe 226 is fixed to the branch joint body assembly 100 to provide sealing, dust and water resistance, etc., and it is contemplated that the tail pipe 226 may be fixedly attached to the branch joint body assembly 100 by bolts.
In some embodiments of the present invention, the tail pipe 226 is provided with a sealing pad at the junction with the branch joint main body assembly 100 to ensure the sealing and dust-proof and water-proof effects of the tail pipe 226.
In some embodiments of the present invention, the inner conductor connecting hardware 211 and the outer conductor connecting hardware 221 are connected to the connecting cylinder 140 in a mechanical connection manner without press-fitting, so as to facilitate quick insertion and extraction, which is simple and practical.
In some embodiments of the present invention, as shown in fig. 2, the branch joint body assembly 100 is further provided with an insulating body 150, and the insulating body 150 is disposed outside the first conductive contact base 110, the second conductive contact base 120 and the connecting cylinder 150. It is conceivable that the insulating body 150 is molded by vacuum casting using an epoxy resin material, and is integrally cast with the first conductive contact base 110, the second conductive contact base 120 and the connecting cylinder 150, so that the insulating body is stable and reliable.
In some embodiments of the present invention, as shown in fig. 2, the insulating main body 150 is further provided with a metal protection shell 160 outside to achieve a sealed mechanical protection of the internal components.
In some embodiments of the present invention, as shown in fig. 2, a semi-conductive epoxy 170 is further disposed between the insulating main body 150 and the metal protecting shell 160 to eliminate an air gap between the metal protecting shell 160 and the insulating main body 150, so as to achieve a good electrical shielding effect.
In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A T-branch joint for high-voltage coaxial power cables for simultaneously connecting a single core cable (104) and a coaxial cable (103) provided with an inner conductor (101) and an outer conductor (102), characterized by comprising:
the branch joint main body assembly (100) is provided with a first conductive contact seat (110), a second conductive contact seat (120), two third conductive contact seats (130) and a connecting cylinder (140), the connecting cylinder (140) is a cylinder body with the middle part penetrating through, two bypass holes are formed in the peripheral side of the connecting cylinder (140), and the opening end of the connecting cylinder (140) is used for connecting a cable plug head;
two high-voltage coaxial power cable plug heads (200) which are respectively plugged at the upper end and the lower end of the connecting cylinder (140) and used for fixing two coaxial cables (103) are provided with an inner conductor connecting device (210) and an outer conductor connecting device (220), the inner conductor connecting device (210) is used for fixing the inner conductor (101) and electrically connecting the inner conductor (101) with the first conductive contact base (110), and the outer conductor connecting device (220) is used for fixing the outer conductor (102) and electrically connecting the outer conductor (102) with the second conductive contact base (120);
the two high-voltage branch power cable plug heads (300) are respectively plugged in the two bypass holes of the connecting cylinder (140) and used for fixing the two single-core cables (104) and electrically connecting the two single-core cables (104) with the two third conductive contact seats (130), and the two third conductive contact seats (130) are electrically connected with the inner conductor (101) and the outer conductor (102) respectively.
2. The T-branch joint for high-voltage coaxial power cables as recited in claim 1, wherein the inner conductor connecting device (210) comprises an inner conductor connecting fitting (211), an internal stress cone (212), an inner conductor stopping device (213) and an internal tightening device (214), the inner conductor connecting fitting (211) is used for electrically connecting the inner conductor (101) with the first conductive contact base (110); the internal stress cone (212) is arranged below the inner conductor connecting hardware fitting (211) and sleeved outside the inner conductor (101); the inner conductor stopping device (213) is sleeved on the inner conductor (101) between the inner conductor connecting fitting (211) and the internal stress cone (212) and is used for limiting the insertion depth of the inner conductor (101) and preventing the inner conductor (101) from retreating; the internal bracing device (214) is used for pre-tensioning the internal stress cone (212).
3. The T-branch joint for high-voltage coaxial power cables as recited in claim 1, wherein the outer conductor connecting device (220) comprises an outer conductor connecting fitting (221), an outer stress cone (222), an outer conductor stopping device (223) and an outer holding device (224), the outer conductor connecting fitting (221) is disposed below the inner conductor connecting device (210) for electrically connecting the outer conductor (102) with the second conductive contact seat (120); the outer stress cone (222) is arranged below the outer conductor connecting fitting (221) and sleeved outside the outer conductor (102); the outer conductor stopping device (223) is sleeved on the outer conductor (102) between the outer conductor connecting fitting (221) and the outer stress cone (222) and used for limiting the insertion depth of the outer conductor (102) and preventing the outer conductor (102) from retreating; the outer tightening device (224) is used for pre-tightening the outer stress cone (222).
4. The T-branch joint for high-voltage coaxial power cables according to claim 2, characterized in that said inner retention means (214) is a first spring, the two ends of which abut against said inner stress cone (212) and said outer conductor connection means (220), respectively.
5. The T-branch connector for high-voltage coaxial power cables as claimed in claim 3, wherein the outer tightening device (224) comprises a second spring (225) and a tail tube (226), both ends of the second spring (225) abut against the outer stress cone (222) and the tail tube (226), respectively, and the tail tube (226) is fixed to the branch connector body assembly (100).
6. The T-branch joint for high-voltage coaxial power cables according to claim 5, wherein the tail pipe (226) is provided with a gasket at the junction with the branch joint body assembly (100).
7. The T-branch joint for high-voltage coaxial power cables according to claim 1, characterized in that the branch joint body assembly (100) is further provided with an insulating body (150), and the insulating body (150) is arranged outside the first conductive contact seat (110), the second conductive contact seat (120) and the connecting cylinder (140).
8. The T-branch joint for high-voltage coaxial power cables as recited in claim 7, wherein a metal protective shell (160) is further provided outside the insulating main body (150).
9. The T-branch joint for high-voltage coaxial power cables as recited in claim 8, wherein a semi-conductive epoxy (170) is further disposed between said insulating main body (150) and said protective metal shell (160).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021454711.3U CN212366247U (en) | 2020-07-21 | 2020-07-21 | T-shaped branch joint for high-voltage coaxial power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021454711.3U CN212366247U (en) | 2020-07-21 | 2020-07-21 | T-shaped branch joint for high-voltage coaxial power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212366247U true CN212366247U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021454711.3U Active CN212366247U (en) | 2020-07-21 | 2020-07-21 | T-shaped branch joint for high-voltage coaxial power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212366247U (en) |
-
2020
- 2020-07-21 CN CN202021454711.3U patent/CN212366247U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410000 No. 223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha, Hunan Patentee after: Long Cable Technology Group Co.,Ltd. Country or region after: China Address before: No.223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha City, Hunan Province, 410205 Patentee before: CHANGLAN CABLE ACCESSORIES Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |