CN107275991B - Cable repairing device and cable repairing method - Google Patents
Cable repairing device and cable repairing method Download PDFInfo
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- CN107275991B CN107275991B CN201710608954.4A CN201710608954A CN107275991B CN 107275991 B CN107275991 B CN 107275991B CN 201710608954 A CN201710608954 A CN 201710608954A CN 107275991 B CN107275991 B CN 107275991B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/16—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables
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Abstract
The invention relates to the field of cable maintenance, in particular to a cable repairing device and a cable repairing method, wherein the cable repairing device comprises a repairing shell, and comprises two opposite-type split shells, one adjacent side edge of the two split shells is hinged, the other adjacent side edge of the two split shells can be connected through a locking device, one of the two split shells is provided with a glue injection hole, the repairing shell forms a cable passing cavity with openings at two ends after being closed, and the inner diameter of the cable passing cavity is larger than the outer diameter of a cable to be repaired; the cable repairing method comprises the steps that a repairing shell covers a damaged sheath of a cable, two ends of the repairing shell are respectively sleeved on and hermetically connected with insulating sheaths of the cable at two ends of the damaged sheath of the cable, liquid repairing glue is injected through a glue injection hole, and the repairing glue and the repairing shell are used as a repairing layer of the damaged sheath of the cable after being solidified; the invention has the beneficial effects that: simple structure, convenient use, good waterproof and moistureproof performance, high strength and difficult damage.
Description
Technical Field
The invention relates to the field of cable maintenance, in particular to a cable repairing device and a cable repairing method.
Background
The power cable often causes the damage of the outer sheath of the cable because of the bad construction environment in the erection process, and influences the operation of the cable. When the damage fault of the outer sheath of the cable is processed, a maintenance worker usually uses a traditional mode to wind and seal the broken position by an insulating tape. Firstly, the cable insulating tape cannot be well in close contact with an outer sheath layer, the cable runs in a humid environment for a long time, and a gap between the wound insulating tape and the outer sheath is easy to enter water and moisture, so that the insulation failure of a repair position is caused, and potential safety hazards are caused to the cable in running; secondly, the wound insulating tape has poor strength and is easy to damage in the construction process, so that the insulating property is reduced, and the wound insulating tape is easy to enter water and damp, thereby also causing potential safety hazards.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a cable repairing device which is simple in structure, convenient to use and good in waterproof effect, and provides a cable repairing method which can effectively repair the damaged part of the outer sheath of the cable for a long time.
One of the tasks of the invention is realized by the following technical scheme:
the utility model provides a cable repairing device, including repairing the shell, repair the shell for closing the formula structure, divide the shell including two, two adjacent sides that divide the shell are articulated, another adjacent side can be connected through locking device, two divide one in the shell to be equipped with the injecting glue hole, repair the shell and form both ends open-ended cable cross line cavity after closing, the internal diameter of crossing the line cavity is greater than the external diameter of waiting to repair the cable, cover in cable damage sheath department when repairing the shell use, the both ends of repairing the shell overlap respectively on the cable insulation sheath at cable damage sheath both ends and sealing connection with it.
Preferably, the outer periphery of one end of the repairing shell is provided with an external thread, the inner periphery of the other end of the repairing shell is provided with an internal thread matched with the external thread, and two or more than two folded repairing shells can be connected in series in sequence to form a whole through threaded connection.
Preferably, the inner periphery of the end, provided with the internal thread, of the repairing shell is further provided with a first caulking groove, a first elastic rubber sleeve is embedded into the first caulking groove and comprises two semi-annular first rubber blocks, the two semi-annular first rubber blocks are respectively arranged at corresponding positions on the two sub-shells, and when the two sub-shells are combined, the two corresponding first rubber blocks are matched to form the first elastic rubber sleeve.
Preferably, the cable repairing device further comprises two sealing end shells, the end face of each sealing end shell is provided with a wire passing port, the two sealing end shells are of an opposite-combined structure, the periphery of one sealing end shell is provided with an external thread matched with the internal thread of the repairing shell, the periphery of the other sealing end shell is provided with an internal thread matched with the external thread of the repairing shell, a second caulking groove is formed in the periphery of the sealing end shell provided with the internal thread, a second elastic rubber sleeve is embedded into the second caulking groove and comprises two semi-annular second rubber blocks corresponding to the opposite-combined structure of the sealing end shells, and when the sealing end shells are opposite, the two corresponding second rubber blocks are matched to form the second elastic rubber sleeve.
Preferably, the locking device is one of a buckle, a butt joint buckle, a clamping sleeve and a screw.
Preferably, the repair casing further comprises a plug for sealing the glue injection hole.
Preferably, the repairing shell is also provided with air holes.
Preferably, the interface where the two sub-shells are attached is respectively provided with a strip-shaped convex strip and a groove which are matched with each other.
Preferably, the material of the repair casing is a bendable elastic insulating material.
The cable repairing device has the beneficial effects that: firstly, the repairing shell is of an involutory structure, and is conveniently applied to the erected continuously extending cable; the repairing layer is closely contacted with the outer sheath of the cable without gaps, has good waterproof and moistureproof performance and high strength, is not easy to damage, can effectively operate for a long time after the cable is repaired, and prolongs the service life of the cable; the repairing shell is made of bendable elastic insulating materials, and the repairing of the damaged position of the bent and erected cable is facilitated.
The second task of the invention is realized by the following technical scheme:
a cable repairing method adopting the cable repairing device comprises the following steps:
folding the repairing shell to cover the damaged sheath of the cable, and sealing two ends of the repairing shell with the insulating sheaths of the cable at two ends of the damaged sheath of the cable;
injecting liquid repairing glue into a cavity between the repairing shell and the damaged cable sheath through the glue injection hole until the cavity is filled with the repairing glue;
thirdly, the liquid repairing glue in the cavity is solidified into solid repairing glue which forms a repairing layer of the damaged sheath of the cable together with the repairing shell.
The cable repairing method has the beneficial effects that: the method provided by the invention has the advantages that the problem that the insulating tape is exposed outside and is easy to damage is solved, and the problem that water and moisture enter due to poor sealing effect of the insulating tape is solved.
Drawings
FIG. 1 is a schematic structural view of a cable repair apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a reference structure of a state of use of the cable repair apparatus according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a cable repair apparatus according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of a reference structure of a state of use of the cable repair apparatus according to embodiment 2 of the present invention;
FIG. 5 is a schematic view of a plurality of cable repair devices used in combination;
the cable comprises a shell 1, a repaired shell 11, a shell 12, a buckle structure 13, a glue injection hole 14, a first caulking groove 151, a first elastic rubber sleeve 152, a second caulking groove 153, a second elastic rubber sleeve 154, a sealed end shell 161, a sealed end shell 162, a hole plug 17, an air hole 18, a protruded strip 191, a groove 192, a 2-cable, a cable damaged sheath 21 and a cable insulated sheath 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the description of the specific embodiments is intended to be illustrative of the invention and is not intended to limit the invention.
Example 1:
as shown in fig. 1-2, a cable repairing device comprises a repairing shell 1, wherein the repairing shell 1 is of an involutory structure and comprises two branch shells 11 and 12, one adjacent side edge of the two branch shells 11 and 12 is hinged, the other adjacent side edge can be connected through a locking device, wherein the branch shell 11 is provided with a glue injection hole 14, and the repairing shell 1 is of an involutory structure and is conveniently applied to an erected continuously extending cable; the repair shell 1 is folded to form a cable passing cavity with openings at two ends, the inner diameter of the cable passing cavity is larger than the outer diameter of a cable to be repaired, when the repair shell is used, the cable 2 passes through the cable passing cavity in the repair shell 1, the repair shell 1 covers the damaged sheath 21 of the cable, two ends of the repair shell 1 are respectively sleeved on and hermetically connected with cable insulation sheaths 22 at two ends of the damaged sheath 21 of the cable, liquid repair glue can be injected into the repair shell 1 through glue injection holes 14 of the repair shell 1, the repair glue and the repair shell 1 jointly form a repair layer of the damaged sheath 21 of the cable after being solidified, the repair layer is in close contact with the outer sheath of the cable, the waterproof and damp-proof performance is good, the strength is high, the repair shell is not easy to damage, the repair cable can effectively operate for a long time, and the service life.
As a preferred embodiment, the outer circumference of one end of the repairing shell 1 is provided with an external thread, the inner circumference of the other end is provided with an internal thread matching with the external thread, two or more than two involutory repairing shells 1 can be sequentially connected in series into a whole through threaded connection, and the repairing shells 1 can be freely combined to be suitable according to the length of the damaged sheath 21 of the cable to be repaired.
As a preferred embodiment, the inner periphery of the end of the repairing shell provided with the internal thread is further provided with a first caulking groove 151, a first elastic rubber sleeve 152 is embedded in the first caulking groove 151, the first elastic rubber sleeve 152 comprises two semi-annular first rubber blocks, the two semi-annular first rubber blocks are respectively arranged at corresponding positions on the two sub-shells, and when the two sub-shells are combined, the corresponding two first rubber blocks are matched to form the first elastic rubber sleeve 152; the first elastic rubber sleeve 152 is deformed and tightly attached between the repaired shell and the cable insulation sheath by radial extrusion when the two split shells are butted and longitudinal extrusion when the two adjacent repaired shells are in threaded connection, so that the sealing performance is enhanced.
As a preferred embodiment, the locking device is a snap structure 13, and two parts of the snap structure 13 are respectively arranged on the sub-shell 11 and the sub-shell 12, so that the operation is convenient.
In a preferred embodiment, the repair casing 1 further comprises a plug 17 for sealing the glue injection hole 14.
In a preferred embodiment, the repairing case 1 is further provided with a vent hole 18.
In a preferred embodiment, the mating interface of the two sub-shells is provided with a strip-shaped protrusion 191 and a groove 192, respectively, which are matched with each other, so as to increase the sealing effect between the two sub-shells.
In a preferred embodiment, the material of the repairing shell 1 is a bendable elastic insulating material, which facilitates repairing of the damaged portion of the cable 2.
Example 2:
on the basis of the technical scheme of the embodiment 1, the cable repairing device is further improved:
as shown in fig. 3-5, the cable repairing device further includes two sealing end shells 161, 162, an end surface of each sealing end shell is provided with a wire passing port, both sealing end shells 161, 162 are of an opposite-type structure, wherein an outer thread matching with the inner thread of the repaired housing 1 is arranged on an outer periphery of the sealing end shell 161, an inner thread matching with the outer thread of the repaired housing 1 is arranged on an inner periphery of the sealing end shell 162, a second caulking groove 153 is further arranged on an inner periphery of the sealing end shell 162, a second elastic rubber sleeve 154 is embedded in the second caulking groove 153, the second elastic rubber sleeve 154 includes two semi-annular second rubber blocks corresponding to the opposite-type structure of the sealing end shells, and when the sealing end shells are opposite, the two corresponding second rubber blocks are matched to form the second elastic rubber sleeve 154; when in use, the two sealing end shells 161 and 162 are respectively arranged at two ends of a single repairing shell or a plurality of integrally connected repairing shells, and the first elastic rubber sleeve 152 and the second elastic rubber sleeve 154 are deformed and tightly attached to the cable insulating sheath 22 through the radial extrusion of the opposite-combination type structure of the sealing end shells and the longitudinal extrusion of the sealing end shells in the process of threaded connection with the repairing shell 1, so that the sealing performance is enhanced; the first elastic rubber sleeve 152 and the second elastic rubber sleeve 154 are preferably silicone sleeves.
Example 3:
a cable repair method using the cable repair device of embodiment 1, comprising the steps of:
firstly, the repairing shell 1 is folded and covered at the position of a damaged cable sheath 21, and two ends of the repairing shell 1 are sealed with cable insulation sheaths 22 at two ends of the damaged cable sheath 21;
injecting liquid repairing glue into a cavity between the repairing shell 1 and the damaged cable sheath 21 through the glue injection hole 14 until the cavity is filled with the repairing glue;
thirdly, the liquid repairing glue in the cavity is solidified into solid repairing glue which forms a repairing layer of the damaged sheath 21 of the cable together with the repairing shell 1.
The method comprises the steps of covering the damaged sheath 21 of the cable with the repairing shell 1, injecting liquid repairing glue into the repairing shell 1, forming a repairing layer of the damaged sheath 21 of the cable together with the repairing shell 1 after the repairing glue is solidified, enabling the repairing layer to be in close and seamless contact with the outer sheath of the cable, being good in waterproof and moisture-proof performance and high in strength and not prone to damage.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A cable repairing device is characterized by comprising a repairing shell, wherein the repairing shell is of an opposite-type structure and comprises two sub-shells, one adjacent side edge of each sub-shell is hinged, the other adjacent side edge of each sub-shell can be connected through a locking device, one of the two sub-shells is provided with a glue injection hole, the repairing shell forms a cable passing cavity with openings at two ends after being combined, the inner diameter of the cable passing cavity is larger than the outer diameter of a cable to be repaired, the repairing shell covers a damaged sheath of the cable when in use, two ends of the repairing shell are respectively sleeved on and hermetically connected with cable insulating sheaths at two ends of the damaged sheath of the cable, liquid repairing glue can be injected into the repairing shell through the glue injection holes, and the repairing glue and the repairing shell form a repairing layer of the damaged sheath of the cable after being solidified; the outer periphery of one end of the repairing shell is provided with an external thread, the inner periphery of the other end of the repairing shell is provided with an internal thread matched with the external thread, and two or more than two folded repairing shells can be connected in series in sequence to form a whole through threaded connection; the inner periphery of one end, provided with the internal thread, of the repairing shell is also provided with a first caulking groove, a first elastic rubber sleeve is embedded into the first caulking groove and comprises two semi-annular first rubber blocks, the two semi-annular first rubber blocks are respectively arranged at corresponding positions on the two split shells, and when the two split shells are combined, the corresponding two first rubber blocks are matched to form the first elastic rubber sleeve; the cable repairing device further comprises two sealing end shells, the end face of each sealing end shell is provided with a wire passing port, the two sealing end shells are of an opposite type structure, one sealing end shell is provided with an external thread matched with the internal thread of the repairing shell, the other sealing end shell is provided with an internal thread matched with the external thread of the repairing shell, a second caulking groove is formed in the inner periphery of the sealing end shell provided with the internal thread, a second elastic rubber sleeve is embedded into the second caulking groove and comprises two semi-annular second rubber blocks corresponding to the opposite type structure of the sealing end shell, and when the sealing end shells are opposite, the two corresponding second rubber blocks are matched to form the second elastic rubber sleeve.
2. The cable repair device according to claim 1, wherein the locking device is one of a snap, a butt-joint, a ferrule, and a screw.
3. The cable repair device of claim 1 wherein said repair housing further comprises a plug for sealing said glue hole.
4. The cable repair device according to claim 1, wherein the repair housing further has a vent hole.
5. The cable repair device according to claim 1, wherein the mating interface of the two sub-housings is provided with mating elongated ribs and grooves, respectively.
6. The cable repair device of claim 1 wherein the material of the repair housing is a flexible, resilient insulating material.
7. A cable repair method using the cable repair apparatus according to any one of claims 1 to 6, comprising the steps of:
folding the repairing shell to cover the damaged sheath of the cable, and sealing two ends of the repairing shell with the insulating sheaths of the cable at two ends of the damaged sheath of the cable;
injecting liquid repairing glue into a cavity between the repairing shell and the damaged cable sheath through the glue injection hole until the cavity is filled with the repairing glue;
thirdly, the liquid repairing glue in the cavity is solidified into solid repairing glue which forms a repairing layer of the damaged sheath of the cable together with the repairing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608954.4A CN107275991B (en) | 2017-07-24 | 2017-07-24 | Cable repairing device and cable repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608954.4A CN107275991B (en) | 2017-07-24 | 2017-07-24 | Cable repairing device and cable repairing method |
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| Publication Number | Publication Date |
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| CN107275991A CN107275991A (en) | 2017-10-20 |
| CN107275991B true CN107275991B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710608954.4A Active CN107275991B (en) | 2017-07-24 | 2017-07-24 | Cable repairing device and cable repairing method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280306B (en) * | 2020-10-22 | 2022-04-22 | 青岛汉缆股份有限公司 | Liquid repairing agent for improving electric corrosion of water-blocking buffer belt of high-voltage and ultrahigh-voltage cable, and preparation method, filling equipment and filling method thereof |
| CN113328372B (en) * | 2021-06-21 | 2022-05-03 | 吉林省华鸿电信技术有限公司 | Remote automatic repairing system for cable |
| CN113629600B (en) * | 2021-08-04 | 2023-06-13 | 中广核研究院有限公司 | Cable repair adapter and cable repair method |
| CN113783144A (en) * | 2021-09-23 | 2021-12-10 | 安徽黑鹭信息科技有限公司 | Electric leakage detector |
| CN113885149A (en) * | 2021-10-19 | 2022-01-04 | 山东里能鲁西矿业有限公司 | Mining optical cable protective sheath patching device |
| CN114256782A (en) * | 2021-12-10 | 2022-03-29 | 深圳供电局有限公司 | Insulated conductor repairing device |
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| CN103470908A (en) * | 2013-09-30 | 2013-12-25 | 中国海洋石油总公司 | Isolation sleeve device used for submarine pipeline inservice permanent repair |
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| CN203466550U (en) * | 2013-09-02 | 2014-03-05 | 长园电力技术有限公司 | Novel epoxy pouring protective casing of cable intermediate joint |
| CN104319041B (en) * | 2014-11-12 | 2016-11-23 | 江苏神马电力股份有限公司 | Full skirt repair apparatus and full skirt method for repairing and mending |
| CN104734082A (en) * | 2015-01-09 | 2015-06-24 | 国家电网公司 | Damaged cable repairing pouring device and pouring usage method |
| JP5967240B1 (en) * | 2015-03-06 | 2016-08-10 | 住友電気工業株式会社 | Repair joint and underwater cable repair |
| CN204424488U (en) * | 2015-03-13 | 2015-06-24 | 广州供电局有限公司黄埔供电局 | The anti-down electric supply installation of cable |
| CN105071308B (en) * | 2015-09-10 | 2017-03-01 | 江苏省电力公司金湖县供电公司 | A kind of method for repairing and mending of breakage cable |
| CN207150059U (en) * | 2017-07-24 | 2018-03-27 | 广州番禺电缆集团有限公司 | Cable repairing device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202474675U (en) * | 2012-03-15 | 2012-10-03 | 北京亿阳恒铁路信息技术发展有限公司 | Cable fault rush-repair device for railway system |
| CN103470908A (en) * | 2013-09-30 | 2013-12-25 | 中国海洋石油总公司 | Isolation sleeve device used for submarine pipeline inservice permanent repair |
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| CN107275991A (en) | 2017-10-20 |
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