CN111724939B - Fireproof and anti-shearing composite cable - Google Patents
Fireproof and anti-shearing composite cable Download PDFInfo
- Publication number
- CN111724939B CN111724939B CN202010636612.5A CN202010636612A CN111724939B CN 111724939 B CN111724939 B CN 111724939B CN 202010636612 A CN202010636612 A CN 202010636612A CN 111724939 B CN111724939 B CN 111724939B
- Authority
- CN
- China
- Prior art keywords
- cable
- sealing
- gas storage
- core wire
- partition plate
- 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.)
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Links
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 238000010008 shearing Methods 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 238000005192 partition Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000004026 adhesive bonding Methods 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 3
- 239000007789 gas Substances 0.000 description 25
- 239000004020 conductor Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/185—Sheaths comprising internal cavities or channels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a fireproof and anti-shearing composite cable, which comprises an outer cable protective layer and a cable core wire arranged in the outer cable protective layer, wherein two ends of the cable core wire extend out of the outer cable protective layer, the contact surface of the cable core wire and the outer cable protective layer is sealed by gluing and water, a sealed gas storage cavity is formed in the outer cable protective layer, a middle partition plate is arranged in the middle of the gas storage cavity, the cable core wire penetrates through the middle partition plate, two sides of the middle partition plate are respectively provided with a sealing piston for inflating the gas storage cavity and enabling the sealing piston to approach the middle partition plate, more than one elastic wire is arranged on the sealing piston, and the other end of the elastic wire is connected with the bottom surface of the gas storage cavity. The cable can realize automatic closing and shear resistance, has good fireproof and fire extinguishing capabilities, and prolongs the overall service life of the cable.
Description
Technical Field
The invention relates to a cable, in particular to a fireproof and anti-shearing composite cable.
Background
Traditional cable, its structure is all the same mostly, it includes the outer protective layer and sets up in the intraformational cable conductor of outer protective layer, the structural strength of cable outer protective layer is general, the fire prevention, anti-shearing ability is general relatively, consequently, when using in the future, can be because external force shearing destroys the cable outer protective layer, in case the cable outer protective layer is impaired, then inside cable conductor also can damage thereupon, outside steam, the dust all can pass the damage department and enter into inside moreover, influence cable conductor life. And the fire-proof performance of the outer protective layer of the cable is more general, and a fire source cannot be extinguished quickly when a fire happens, so that the fire of the cable is serious.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fireproof and anti-shearing composite cable which has very good anti-shearing and fireproof capabilities, can greatly prolong the service life of the cable and effectively overcomes the defects in the prior art.
The invention is realized by the following technical scheme: the utility model provides an anti compound cable that shears of fire prevention, includes the cable overcoat and sets up the cable conductor in the cable overcoat, and the both ends of cable conductor stretch out in the cable overcoat outside, and the cable conductor is beaten gluey water-stop with the contact surface of cable overcoat to form a confined gas storage chamber in the cable overcoat, the intermediate position in gas storage chamber sets up a median septum and cuts off, and the cable conductor passes the median septum, the both sides of median septum set up a sealing piston respectively, aerify the gas storage chamber, and make sealing piston be close to towards the position of median septum, be provided with the elastic wire more than on the sealing piston, the other end of elastic wire connects gas storage chamber bottom surface.
As a preferred technical scheme, when the sealing piston is close to the position of the middle partition plate, each elastic line is in a stretching shape, and the gas storage cavity is filled with gas.
As a preferable technical scheme, the bottom surface of the air storage cavity and two sides of the sealing piston are respectively provided with a connecting ring, and two ends of the elastic thread are respectively tied on the connecting rings.
As a preferred technical scheme, the sealing piston seals the whole air storage cavity and separates two sides of the air storage cavity.
According to the preferable technical scheme, the sealing piston comprises a middle main body part, a soft part and a sealing part, a through hole for the cable core wire to penetrate through is formed in the middle of the middle main body part, a silica gel layer is arranged on the inner wall of the through hole and is in sealing contact with the outer wall surface of the cable core wire, the soft part is fixedly bonded on the outer portion of the middle main body part, and the sealing part is made of silica gel materials and wraps the outer side surface of the soft part.
As a preferred technical scheme, an inflation inlet is arranged at a position, far away from the middle partition plate, on the cable outer protective layer, and the inflation inlet is sealed through a threaded sealing cover.
Preferably, the middle main body part is made of hard metal materials, the soft part is made of rubber materials, more than one circle of grooves are formed in the outer wall surface of the sealing part, and the contact sealing performance of the sealing part and the inner wall surface of the air storage cavity is improved through the grooves.
As a preferable technical scheme, a through core wire hole is formed in the middle of the middle partition plate, a cable core wire penetrates through the core wire hole, and the cable core wire and the contact surface of the core wire hole are sealed by glue.
The invention has the beneficial effects that: once the outer protective layer is damaged, the whole sealing piston can move to the damaged position to realize automatic plugging, and the damaged position can be a damaged opening caused by shearing damage or a damaged opening caused by flame burning, so that the aims of automatic sealing, fire extinguishing and shear resistance can be fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a state diagram of the present invention in use;
fig. 3 is a schematic structural view of the sealing piston of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in figure 1, the fireproof and anti-shearing composite cable comprises a cable outer protective layer 1 and a cable core 3 arranged in the cable outer protective layer 1, wherein two ends of the cable core 3 extend out of the cable outer protective layer 1, the contact surface of the cable core 3 and the cable outer protective layer 1 is sealed by glue, a sealed gas storage cavity 4 is formed in the cable outer protective layer 1, a middle partition plate 6 is arranged in the middle of the gas storage cavity 4 for separating, the cable core 3 penetrates through the middle partition plate 6, two sealing pistons 5 are respectively arranged on two sides of the middle partition plate 6 for inflating the gas storage cavity 4, the sealing pistons 5 are close to the middle partition plate 6, more than one elastic wire 2 is arranged on the sealing pistons 5, and the other ends of the elastic wires 2 are connected with the bottom surface of the gas storage cavity 4.
When the sealing piston 5 is close to the middle partition plate, all the elastic lines are in a stretching shape, the gas storage cavity 4 is filled with gas, the sealing piston 5 is pushed to move towards the middle partition plate 6 through the continuous gas flushing, and then all the elastic lines 2 are continuously stretched to generate elastic rebound force.
Wherein, the bottom surface of the gas storage cavity 4 and the two sides of the sealing piston 5 are respectively provided with a connecting ring, the two ends of the elastic thread 2 are respectively tied on the connecting rings, and the sealing piston 5 seals the whole gas storage cavity 4 and separates the two sides of the gas storage cavity 4.
As shown in fig. 3, the sealing piston 5 includes a middle main body portion 53, a flexible portion 54 and a sealing portion 52, a through hole 51 for the cable core wire to pass through is formed in the middle of the middle main body portion 53, a layer of silica gel layer is disposed on the inner wall of the through hole 51 and is in sealing contact with the outer wall surface of the cable core wire, the flexible portion 54 is bonded and fixed on the outer portion of the middle main body portion 53, and the sealing portion 52 is made of silica gel material and wraps the outer side surface of the flexible portion 54.
Wherein, the position of keeping away from the median septum on the cable outer protective layer 1 is provided with an inflation inlet, and the inflation inlet is sealed through the thread sealing lid, aerifys gas storage chamber 4 through the inflation inlet, and then promotes sealed piston 5 and removes towards 6 positions of median septum.
In this embodiment, the middle main body portion 53 is made of a hard metal material, the soft portion 54 is made of a rubber material, the outer wall surface of the sealing portion 52 is provided with more than one circle of grooves, the contact sealing performance between the sealing portion and the inner wall surface of the gas storage cavity is improved through the grooves, the middle of the middle partition plate 6 is provided with a through core hole, the cable core 3 penetrates through the core hole, and the contact surface of the cable core 3 and the core hole is sealed with glue.
Since the middle body part 53 of the sealing piston 5 is made of hard metal, when the sealing piston moves to the breakage opening A, the sealing piston can resist external secondary shearing by utilizing metal force, and the purpose of protecting the internal core wire is achieved; and increase through the sealing, prevent gas leakage with the gas storage intracavity wall between the leakproofness, the effect of soft portion is that the deformation that realizes cable conductor and bend the department lets better realization slide, is unlikely to the card dead.
As shown in fig. 2, when the cable outer protective layer has the damaged opening a, the gas originally filled in the gas storage cavity flows out from the damaged opening a quickly, at this time, the elastic wire retracts, the sealing piston moves quickly, when the sealing piston moves to the damaged opening a, the sealing piston stops moving, the gas cannot be discharged, and then the sealing piston does not move any more, at this time, the sealing piston can just seal the damaged opening a, at this time, if the damaged opening a is caused by shearing, at this time, the sealing piston is located at the damaged opening a, the re-shearing can be resisted, the cable core wire is prevented from being sheared next time, and the purpose of automatically sealing the damaged opening a can be achieved through the sealing piston, and external water vapor and dust are prevented from entering. If the damaged opening A is caused by flame burning, the sealing piston can also move to the damaged opening A quickly, so that the purpose of extinguishing the fire source in a physical mode is achieved. In this embodiment, the charged gas is preferably an inert gas, and may be any gas, so as to achieve the purpose of extinguishing fire.
The invention has the beneficial effects that: once the outer protective layer is damaged, the whole sealing piston can move to the damaged position to realize automatic plugging, and the damaged position can be a damaged opening caused by shearing damage or a damaged opening caused by flame burning, so that the aims of automatic sealing, fire extinguishing and shear resistance can be fulfilled.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a fire prevention anti-shear composite cable which characterized in that: the cable core wire sealing device comprises an outer cable protection layer and a cable core wire arranged in the outer cable protection layer, wherein two ends of the cable core wire extend out of the outer cable protection layer, the contact surface of the cable core wire and the outer cable protection layer is sealed by gluing water, a sealed gas storage cavity is formed in the outer cable protection layer, a middle partition plate is arranged in the middle of the gas storage cavity, the cable core wire penetrates through the middle partition plate, two sealing pistons are respectively arranged on two sides of the middle partition plate and used for inflating the gas storage cavity, the sealing pistons are close to the middle partition plate, more than one elastic wire is arranged on each sealing piston, and the other end of each elastic wire is connected with the bottom surface of the gas storage cavity;
when the sealing piston is close to the middle partition plate, each elastic line is in a stretching shape, and the gas storage cavity is filled with gas; the utility model discloses a gas storage chamber, including sealing piston, soft portion, sealing piston, the sealed whole gas storage chamber of sealing piston to cut off gas storage chamber both sides, sealing piston includes a middle main part, soft portion and a sealing, sets up a through-hole that supplies the cable core to pass the usefulness in the middle of the middle main part, and the through-hole inner wall is provided with one deck silica gel layer, its and the outer wall sealing contact of cable core, and the soft portion bonds and fixes the outside at middle main part, and the sealing is silica gel material, and it wraps up in the lateral surface of soft portion, middle main part adopts hard metal material to make, the soft portion adopts rubber materials to make, is provided with the recess more than the round on the outer wall of sealing, increases the contact leakproofness of sealing and gas storage chamber internal face through a plurality of recesses.
2. The fire-resistant, shear-resistant composite cable of claim 1, wherein: the bottom surface of the air storage cavity and two sides of the sealing piston are respectively provided with a connecting ring, and two ends of the elastic wire are respectively tied on the connecting rings.
3. The fire-resistant, shear-resistant composite cable of claim 1, wherein: and an inflation inlet is arranged on the position, far away from the middle partition plate, of the cable outer protective layer and is sealed through a threaded sealing cover.
4. The fire-resistant, shear-resistant composite cable of claim 1, wherein: a through core wire hole is formed in the middle of the middle partition plate, a cable core wire penetrates through the core wire hole, and the cable core wire and the contact surface of the core wire hole are sealed by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636612.5A CN111724939B (en) | 2020-07-05 | 2020-07-05 | Fireproof and anti-shearing composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636612.5A CN111724939B (en) | 2020-07-05 | 2020-07-05 | Fireproof and anti-shearing composite cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111724939A CN111724939A (en) | 2020-09-29 |
| CN111724939B true CN111724939B (en) | 2021-10-08 |
Family
ID=72571552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010636612.5A Active CN111724939B (en) | 2020-07-05 | 2020-07-05 | Fireproof and anti-shearing composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111724939B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100674263B1 (en) * | 2006-09-09 | 2007-01-30 | 주식회사 타우이엔지 | Waterproot prevention cover of electricity cable |
| KR20090017369A (en) * | 2007-08-14 | 2009-02-18 | 전병옥 | Heating line with fire protection function and heating element using the same |
| CN201946373U (en) * | 2011-03-17 | 2011-08-24 | 吴国华 | Flame-retardant cable |
| CN110164615A (en) * | 2019-06-18 | 2019-08-23 | 王章力 | Fire-resisting cable |
| CN110580978A (en) * | 2019-09-17 | 2019-12-17 | 吕俊锴 | Composite cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4731505A (en) * | 1987-03-31 | 1988-03-15 | General Instrument Corporation | Impact absorbing jacket for a concentric interior member and coaxial cable provided with same |
| CN201449778U (en) * | 2009-07-07 | 2010-05-05 | 扬州亚光电缆有限公司 | Environment-protective fire-proof shield flexible cable for moving |
-
2020
- 2020-07-05 CN CN202010636612.5A patent/CN111724939B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100674263B1 (en) * | 2006-09-09 | 2007-01-30 | 주식회사 타우이엔지 | Waterproot prevention cover of electricity cable |
| KR20090017369A (en) * | 2007-08-14 | 2009-02-18 | 전병옥 | Heating line with fire protection function and heating element using the same |
| CN201946373U (en) * | 2011-03-17 | 2011-08-24 | 吴国华 | Flame-retardant cable |
| CN110164615A (en) * | 2019-06-18 | 2019-08-23 | 王章力 | Fire-resisting cable |
| CN110580978A (en) * | 2019-09-17 | 2019-12-17 | 吕俊锴 | Composite cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111724939A (en) | 2020-09-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210916 Address after: 650000 plot d-1-2 (6), Xichong community neighborhood committee, Dabanqiao sub district office, Guandu District, Kunming City, Yunnan Province Applicant after: KUNMING DIANLI CABLE Co.,Ltd. Address before: 314308 No. 2, xinwulang, Yuanyang village, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: Wu Limin |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of fireproof and shear resistant composite cable Effective date of registration: 20220609 Granted publication date: 20211008 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Kunming branch Pledgor: KUNMING DIANLI CABLE CO.,LTD. Registration number: Y2022530000016 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20211008 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Kunming branch Pledgor: KUNMING DIANLI CABLE CO.,LTD. Registration number: Y2022530000016 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A fire-resistant and shear resistant composite cable Granted publication date: 20211008 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Kunming branch Pledgor: KUNMING DIANLI CABLE CO.,LTD. Registration number: Y2024530000006 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |