CN111540512A - Composite fireproof cable - Google Patents
Composite fireproof cable Download PDFInfo
- Publication number
- CN111540512A CN111540512A CN202010401198.XA CN202010401198A CN111540512A CN 111540512 A CN111540512 A CN 111540512A CN 202010401198 A CN202010401198 A CN 202010401198A CN 111540512 A CN111540512 A CN 111540512A
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- Prior art keywords
- cable
- steel wire
- protective layer
- outer protective
- spring
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000011241 protective layer Substances 0.000 claims abstract description 43
- 239000004020 conductor Substances 0.000 claims description 16
- 229920000742 Cotton Polymers 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- 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
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/225—Longitudinally placed metal wires or tapes forming part of an outer sheath
-
- 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
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a composite fireproof cable, which comprises more than one positioning ring which are arranged at equal intervals, wherein a through hole is formed in the middle of each positioning ring, a cable core wire penetrates through the through hole in each positioning ring, an outer protective layer is wrapped between every two adjacent positioning rings, more than one opening cavity is formed in the outer protective layer in a circle around the outer protective layer, an assembly step surface is arranged on each positioning ring and faces the outer protective layer, two sides of the outer protective layer are sleeved on the assembly step surfaces, each opening cavity is sealed through a sealing strip, and a steel wire device is arranged at the bottom of each sealing strip; the cable provided by the invention can be used as a reinforced protection of the cable outer protective layer by utilizing the steel wire structure, the strength of the cable outer protective layer is increased, and meanwhile, the purpose of secondary coating of the cable core wire is realized by utilizing the steel wire structure, so that the cable has a good fireproof wire, also has a good anti-shearing capability, and is more reasonable in structural design.
Description
Technical Field
The invention relates to the field of cables, in particular to a composite fireproof cable.
Background
The cables are arranged in a plurality of occasions, and are exposed, cables arranged outside, power arranged in the air and buried cables, but no matter where the cables are arranged, the cables are in fire risk, when the cables are aged and generate fire caused by spontaneous combustion or group cable fire caused by external fire, the cables must have very good fireproof capacity, when flame exists outside or one of the cables generates spontaneous combustion, the flame can burn an outer protective layer of the cables, further the peripheral cables are quickly ignited, further the cable is subjected to gathering combustion, the fire rapidly spreads, further serious economic loss is caused, when the flame exists, because the distance between the outer protective layers of the cables is relatively short, the flame can be quickly transmitted, if the outer protective layers of the burnt cables can be automatically separated and are far away from other cables, the propagation speed of the flame must be reduced, reducing the spread of fire.
In addition, in order to increase the shearing resistance of the cable, a large number of metal filaments are distributed in the outer protective layer of the cable, so that the strength of the outer protective layer of the cable can be increased, but the metal filaments are only capable of increasing the strength of the outer protective layer of the cable, and when flame exists, the metal filaments cannot play a role in protecting cable cores, so that the cable is used in a problematic mode.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a composite fireproof cable, which can utilize a metal wire structure, not only strengthen the strength of an outer protective layer of the cable, but also utilize the metal wire to wrap the whole cable when flame damages the cable, so as to achieve the purpose of isolating a fire source, and simultaneously can automatically strip off the flammable outer protective layer of the cable, so as to achieve the purpose of keeping away from the fire source.
The invention is realized by the following technical scheme: a composite fireproof cable comprises more than one positioning ring which is arranged at equal intervals, a through hole is formed in the middle of each positioning ring, a cable core wire penetrates through the through holes in each positioning ring, an outer protective layer is wrapped between every two adjacent positioning rings, more than one opening cavity is formed in the outer protective layer in a circle around the outer protective layer, assembly step surfaces are arranged on the positioning rings and face the outer protective layer, two sides of the outer protective layer are sleeved on the assembly step surfaces, each opening cavity is sealed through a sealing strip, a steel wire device is arranged at the bottom of each sealing strip, the steel wire devices are fixedly connected with the outer wall surface of the cable core wire through first springs, the first springs are in a stretching shape, the two sides of the sealing strip are pressed towards the assembling step surface through the first spring, and the steel wire device is limited to move towards a cable core wire by the limiting structure between the steel wire device and the sealing strip.
As the preferred technical scheme, one end of the first spring is embedded into the outer surface of the cable core wire and is filled with glue for sealing, and the other end of the first spring is bonded and fixed with the steel wire device through glue.
As preferred technical scheme, every steel wire line device all includes a wire rod main part, and the inside of wire rod main part has a well cavity, and a logical groove is respectively seted up to the both sides of wire rod main part, passes logical groove and all sets up a telescopic bar, and telescopic bar one end is passed logical groove and is stretched into in the cavity intracavity, and telescopic bar's the end of stretching into is provided with spacing ear, all fixes on the spacing ear and sets up a second spring, and the other end and the contact of wire rod main part internal face of second spring are ejecting to the outside through the second spring with telescopic bar.
As the preferred technical scheme, more than one steel wire device is arranged outside the cable core under the action of a first spring, adjacent steel wire devices are contacted with each other, and when all the steel wire devices are positioned outside the cable core, the cable core is wrapped by more than one steel wire device in a sealing mode.
As the preferred technical scheme, heat insulation cotton is arranged in the hollow cavity, the heat insulation cotton is quartz cotton, and the quartz cotton is filled in the hollow cavity formed in the inner side surface of the telescopic strip.
As a preferred technical scheme, the limiting structure comprises an air storage pipe embedded in the sealing strip, the air storage pipe is arranged along the length direction of the sealing strip, and the air storage strip is arranged on the outer side surface of the sealing strip and partially exposed outside; limiting structure still includes the clamping jaw that is used for clamping steel wire line device to use, lays an air duct in the clamping jaw, and the air duct is connected with the gas storage strip and switches on the back inflation, and one side of air duct all sets up a locating lever, and locating lever one end contacts with the air duct of inflation to ejecting outside to the clamping jaw through the air duct of inflation, just be provided with the locating hole on the steel wire line device to the locating lever, ejecting rear portion lock of locating lever is gone into in the locating hole, beat between locating lever one end and the air duct and glue water-tight seal and be connected, the air duct adopts flexible rubber material to.
As a preferred technical scheme, the outer protective layer is an elastic metal thin layer, and two sides of the outer protective layer are respectively bonded and fixed on the assembly step surface of the positioning ring.
As a preferable technical scheme, the sealing strips are all made of rubber materials.
The invention has the beneficial effects that: when a fire disaster happens, the outer protective layer of the cable can automatically fall off, so that the outer protective layer of the cable can be prevented from being rapidly ignited by flame, and further, the transmission of the flame among the cables is relieved;
utilize the wire to play the purpose of strengthening the cable outer protective layer, when the conflagration takes place or destroy the cable outer protective layer simultaneously, the wire can remove to the cable conductor outside to wrap up the cable conductor completely, reach the purpose of keeping apart the fire source and protecting the cable conductor, therefore the structure of wire can regard as anti-shear protection to use, can regard as again to keep apart the fire source and protect the core wire to use, structural design is more reasonable, can use in more complicated occasions.
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 side cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention in a fire-blocked state;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
fig. 5 is a partially enlarged view of fig. 2 at B.
Detailed Description
As shown in fig. 1 and 2, the composite fireproof cable comprises more than one positioning ring 6 arranged at equal intervals, a through hole 3 is formed in the middle of each positioning ring 6, a cable core wire 7 penetrates through the through holes in each positioning ring 6, an outer protective layer 8 is wrapped between every two adjacent positioning rings 6, more than one open cavity 11 is formed in the outer protective layer 8 in a circle surrounding the outer protective layer 8, an assembly step surface 61 is arranged on each positioning ring 6 and facing the outer protective layer 8, two sides of each outer protective layer 8 are sleeved on the assembly step surfaces 61, each open cavity 11 is sealed by a sealing strip 2, a steel wire device 1 is arranged at the bottom of each sealing strip 2, the steel wire devices 1 are fixedly connected with the outer wall surface of each cable core wire 7 through first springs 5, the first springs 5 are in a tensile shape, two sides of the sealing strips 2 are pressed towards the assembly step surfaces 61 through the first springs 5, the steel wire device 1 is limited to move towards the cable core 7 through the limiting structure 4 between the steel wire device 1 and the sealing strip 2, because the sealing strip 2 is pressed on the assembly step surface 61 through the first spring 5, once the steel wire device 1 is separated from the sealing strip 2, the limiting force of the sealing strip 2 can be lost at the moment, the sealing strip 2 can automatically fall off at the moment, if flame exists on the sealing strip at the moment, the flame can be automatically separated, the transmission of the flame on the sealing strip 2 is prevented, the separation between the general sealing strip 2 and the steel wire device is only two conditions, one is that the limiting structure is damaged due to external force, the second is that the limiting structure is damaged due to flame, no matter the limiting structure is damaged by a built-in mode, the steel wire device can be used for carrying out secondary protection on the core, and the safety is improved.
Wherein, the embedding of first spring 5 one end sets up in the skin of cable conductor 7 and pours into glue sealed, and the other end of first spring 5 is beaten glue with the steel wire line device and is bonded fixedly, through the taut sealing strip of first spring for the sealing strip both ends compress tightly all the time on the assembly step face, and then make the sealing strip seal the opening chamber all the time, prevent that outside dust and steam from entering into inside the cable.
As shown in fig. 5, each steel wire device 1 includes a wire body 111, a hollow cavity 114 is provided inside the wire body 111, two sides of the wire body 111 are respectively provided with a through groove, a telescopic bar 112 is arranged through the through grooves, one end of the telescopic bar 112 passes through the through groove and extends into the hollow cavity, a limiting lug is arranged at an extending end of the telescopic bar, a second spring 113 is fixedly arranged on the limiting lug, the other end of the second spring 113 contacts with the inner wall surface of the wire body 111, the telescopic bar 112 is ejected to the outside through the second spring 113, when the steel wire device 1 is integrally assembled with the sealing strip through a limiting structure, the telescopic bar 112 is retracted into the wire body 111, the telescopic bar 112 cannot be ejected to the outside, and when the steel wire device 1 leaves the sealing strip 2, the telescopic bar is ejected by the second spring, so that more than one steel wire devices are butted with each other through the ejected sealing strip, as shown in fig. 3, the purpose of wrapping more than one strand of steel wire device with the cable core wire is realized, so that even if flame exists outside, the metal steel wire device can be used for isolating the fire source, the flame can not directly contact with the core wire, and the fireproof safety is very good.
Wherein, more than one steel wire device 1 lays in the outside of cable conductor 7 under the effect of first spring 5, contacts mutually between the adjacent steel wire device 1, and when all steel wire device 1 all were located the cable conductor outside, cable conductor 7 lived through the sealed parcel of more than one steel wire device, and cavity intracavity sets up thermal-insulated cotton, thermal-insulated cotton is quartz cotton, and quartz cotton fills in the fretwork intracavity that the expansion strip medial surface was seted up, because the inside thermal-insulated cotton that fills of steel wire device, the heat source of isolation that can be fine increases the fire prevention time.
As shown in fig. 4, the limiting structure 4 includes an air storage tube 42 embedded in the sealing strip, the air storage tube 42 is disposed along the length direction of the sealing strip, and the air storage strip 42 is disposed on the outer side surface of the sealing strip 2 and partially exposed outside; the limiting structure 4 further comprises a clamping jaw 44 for clamping the steel wire device, an air duct 41 is arranged in the clamping jaw 44, the air duct 41 is connected with the air storage strip and then expands, a positioning rod 43 is arranged on one side of the air duct 41, one end of the positioning rod 43 is in contact with the expanded air duct 41 and is ejected out of the clamping jaw 44 through the expanded air duct 41, a positioning hole is arranged on the steel wire device 1 facing the positioning rod 43, the ejected rear part of the positioning rod 43 is partially buckled in the positioning hole, one end of the positioning rod 43 is connected with the air duct 41 in a glue-sealed manner, the air duct 41 is made of flexible rubber material, once the exposed air storage tube 42 is damaged, the air duct 41 does not expand any more at the moment, the air duct 41 which does not expand any more, the positioning rod 41 which does not expand any more drives the positioning rod to retract, so that the positioning rod 43 is, the sealing strip has lost decurrent pulling force this moment, just can drop automatically under the action of gravity, reaches the purpose of self-separation, and can wrap up whole cable core around the outside steel wire device of cable core, reaches the purpose of keeping apart the fire source protection cable core.
Wherein, outer protective layer 8 adopts the elastic metal thin layer, and its both sides bond respectively to be fixed on the assembly step face of holding ring 6, owing to adopt the elastic metal thin layer, consequently can be crooked cable at will, simultaneously on the basis that can guarantee leakproofness and intensity, can not too much incremental cost, structural design is more reasonable.
In the embodiment, the sealing strips 2 are made of rubber materials, so that when the inflammable sealing strips fall off, the safety of the cable can be greatly improved, and the spread of flame on the sealing strips is reduced.
The invention has the beneficial effects that: when a fire disaster happens, the outer protective layer of the cable can automatically fall off, so that the outer protective layer of the cable can be prevented from being rapidly ignited by flame, and further, the transmission of the flame among the cables is relieved;
utilize the wire to play the purpose of strengthening the cable outer protective layer, when the conflagration takes place or destroy the cable outer protective layer simultaneously, the wire can remove to the cable conductor outside to wrap up the cable conductor completely, reach the purpose of keeping apart the fire source and protecting the cable conductor, therefore the structure of wire can regard as anti-shear protection to use, can regard as again to keep apart the fire source and protect the core wire to use, structural design is more reasonable, can use in more complicated occasions.
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 (8)
1. A composite fireproof cable is characterized in that: including the holding ring that more than one equidistance was laid, a through-hole has all been seted up to the centre of holding ring, the cable conductor passes the through-hole on each holding ring, all wrap up between two adjacent holding rings and set up an outer protective layer, surround the outer protective layer round on the outer protective layer and seted up more than one opening chamber, all be provided with the assembly step face towards the outer protective layer on the holding ring, outer protective layer both sides suit is on the assembly step face, all seal through a sealing strip in every opening chamber, the bottom of every sealing strip all sets up a steel wire device, steel wire device all is through first spring and cable conductor outer wall fixed connection, first spring is tensile form, compress tightly the sealing strip both sides towards the assembly step face through first spring, remove towards the cable conductor through a limit structure restriction steel wire device between steel wire device and the sealing.
2. The composite fire-protected cable of claim 1, wherein: one end of the first spring is embedded into the outer surface of the cable core wire and is filled with glue for sealing, and the other end of the first spring is bonded and fixed with the steel wire device by glue.
3. The composite fire-protected cable of claim 1, wherein: every steel wire device all includes a wire rod main part, and the inside of wire rod main part has a well cavity, and a logical groove is respectively seted up to the both sides of wire rod main part, passes and leads to the groove and all sets up a telescopic bar, and telescopic bar one end is passed and is led to the groove and stretch into in the cavity intracavity, and telescopic bar's the end of stretching into is provided with spacing ear, all fixes on the spacing ear and sets up a second spring, and the other end and the wire rod main part internal face contact of second spring are ejecting to the outside with telescopic bar through the second spring.
4. The composite fire-protected cable of claim 1, wherein: more than one steel wire device is laid in the outside of cable conductor under the first spring action, contacts each other between the adjacent steel wire device, when all steel wire devices all were located the cable conductor outside, the cable conductor lived through the sealed parcel of more than one steel wire device.
5. The composite fire-protected cable of claim 3, wherein: the hollow cavity is internally provided with heat insulation cotton, the heat insulation cotton is quartz cotton, and the quartz cotton is filled in the hollow cavity formed in the inner side surface of the telescopic strip.
6. The composite fire-protected cable of claim 1, wherein: the limiting structure comprises an air storage pipe embedded in the sealing strip, the air storage pipe is arranged along the length direction of the sealing strip, and the air storage strip is arranged on the outer side surface of the sealing strip and is partially exposed outside; limiting structure still includes the clamping jaw that is used for clamping steel wire line device to use, lays an air duct in the clamping jaw, and the air duct is connected with the gas storage strip and switches on the back inflation, and one side of air duct all sets up a locating lever, and locating lever one end contacts with the air duct of inflation to ejecting outside to the clamping jaw through the air duct of inflation, just be provided with the locating hole on the steel wire line device to the locating lever, ejecting rear portion lock of locating lever is gone into in the locating hole, beat between locating lever one end and the air duct and glue water-tight seal and be connected, the air duct adopts flexible rubber material to.
7. The composite fire-protected cable of claim 1, wherein: the outer protective layer is an elastic metal thin layer, and two sides of the outer protective layer are respectively bonded and fixed on the assembly step surface of the positioning ring.
8. The composite fire-protected cable of claim 1, wherein: the sealing strips are all made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401198.XA CN111540512B (en) | 2020-05-13 | 2020-05-13 | Composite fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401198.XA CN111540512B (en) | 2020-05-13 | 2020-05-13 | Composite fireproof cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111540512A true CN111540512A (en) | 2020-08-14 |
| CN111540512B CN111540512B (en) | 2021-10-26 |
Family
ID=71977662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010401198.XA Active CN111540512B (en) | 2020-05-13 | 2020-05-13 | Composite fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111540512B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206619431U (en) * | 2017-04-12 | 2017-11-07 | 成都新三电线厂 | The smokeless ecological, environmental protective cable of Halogen |
| US20180174710A1 (en) * | 2016-12-20 | 2018-06-21 | American Fire Wire, Inc. | Fire resistant coaxial cable and manufacturing technique |
| CN208027792U (en) * | 2018-04-28 | 2018-10-30 | 河南昶明航标机电设备有限公司 | A kind of Anti-pressure fireproof cable |
| CN208335835U (en) * | 2018-06-28 | 2019-01-04 | 中山市广宏电线电缆有限公司 | A kind of electric wire of good heat dissipation effect |
| CN110047620A (en) * | 2019-05-22 | 2019-07-23 | 卢文杰 | Composite fireproof cable |
| CN110232998A (en) * | 2019-06-18 | 2019-09-13 | 王章力 | Composite cable |
| CN110299224A (en) * | 2019-07-01 | 2019-10-01 | 谭兴亮 | Fire prevention composite cable |
| CN110580980A (en) * | 2019-09-29 | 2019-12-17 | 俞天舜 | Flame-retardant and pressure-resistant cable |
-
2020
- 2020-05-13 CN CN202010401198.XA patent/CN111540512B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180174710A1 (en) * | 2016-12-20 | 2018-06-21 | American Fire Wire, Inc. | Fire resistant coaxial cable and manufacturing technique |
| CN206619431U (en) * | 2017-04-12 | 2017-11-07 | 成都新三电线厂 | The smokeless ecological, environmental protective cable of Halogen |
| CN208027792U (en) * | 2018-04-28 | 2018-10-30 | 河南昶明航标机电设备有限公司 | A kind of Anti-pressure fireproof cable |
| CN208335835U (en) * | 2018-06-28 | 2019-01-04 | 中山市广宏电线电缆有限公司 | A kind of electric wire of good heat dissipation effect |
| CN110047620A (en) * | 2019-05-22 | 2019-07-23 | 卢文杰 | Composite fireproof cable |
| CN110232998A (en) * | 2019-06-18 | 2019-09-13 | 王章力 | Composite cable |
| CN110299224A (en) * | 2019-07-01 | 2019-10-01 | 谭兴亮 | Fire prevention composite cable |
| CN110580980A (en) * | 2019-09-29 | 2019-12-17 | 俞天舜 | Flame-retardant and pressure-resistant cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111540512B (en) | 2021-10-26 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Hanjie Inventor after: Wang Yadi Inventor after: Chen Yazhi Inventor before: Chen Yazhi |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211008 Address after: 451200 No. 5, Yongding East Road, Gongyi City, Zhengzhou City, Henan Province Applicant after: PEOPLE'S CABLE GROUP Co.,Ltd. Address before: 322100 Baiyun Cable Co., Ltd., 518 Dongyi Road, Dongyang City, Jinhua City, Zhejiang Province Applicant before: Chen Yazhi |
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| TA01 | Transfer of patent application right | ||
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composite fireproof cable Effective date of registration: 20221013 Granted publication date: 20211026 Pledgee: Bank of China Limited by Share Ltd. Zhengzhou high tech Development Zone Branch Pledgor: PEOPLE'S CABLE GROUP Co.,Ltd. Registration number: Y2022980018241 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230925 Granted publication date: 20211026 Pledgee: Bank of China Limited by Share Ltd. Zhengzhou high tech Development Zone Branch Pledgor: PEOPLE'S CABLE GROUP Co.,Ltd. Registration number: Y2022980018241 |
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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: Composite fireproof cable Effective date of registration: 20230927 Granted publication date: 20211026 Pledgee: Bank of China Limited Gongyi Branch Pledgor: PEOPLE'S CABLE GROUP Co.,Ltd. Registration number: Y2023980059074 |
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