CN112653035B - Wire insulation repair system - Google Patents
Wire insulation repair system Download PDFInfo
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- CN112653035B CN112653035B CN202011371746.5A CN202011371746A CN112653035B CN 112653035 B CN112653035 B CN 112653035B CN 202011371746 A CN202011371746 A CN 202011371746A CN 112653035 B CN112653035 B CN 112653035B
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- repairing
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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
Abstract
The invention discloses a wire insulation repair system. The repairing mould is coated on the wire connecting section and is provided with an injection hole, and repairing raw materials are injected from the injection hole so as to surround the wire connecting section; the cooling pipe is sleeved on the periphery of the repair mould and is a hollow annular pipe, the inner cavity of the annular pipe wall is filled with water, and the repair mould is arranged at the inner hole of the cooling pipe; the control box body is provided with an insertion hole, and the cooling pipe and the repair mould are integrally inserted into the insertion hole; the control box body is provided with an external water pipe, the external water pipe is connected with the cooling pipe in the control box body, and circulating water is provided through the external water pipe; the control box body is internally provided with a circulating water control device and a heating control device, the circulating water control device controls the on-off of circulating water in the inner cavity of the annular pipe wall, the heating control device provides a high-frequency alternating magnetic field, so that the repairing mould generates eddy current, and the eddy current generates heat and transmits the heat to the repairing raw material. The electric wire repairing position is more regular and firm, the temperature during repairing is controllable, and the repairing speed is accelerated by circulating water for cooling.
Description
Technical Field
The invention relates to the technical field of wire repair, in particular to a wire insulation repair system.
Background
The irregularity of the wire connection causes the contact resistance of the wire to become large, causing heat generation and damaging the outer-clad insulation layer, resulting in the occurrence of an electrical accident. With the continuous development of rubber and plastic production technology and the continuous maturity of eddy current temperature control technology, the connection outer layer insulation of electric wire can accomplish safer and more pleasing to the eye. A technology and method for repairing the insulation of electric wire features that the external insulation at the joint of 2 electric wires can meet the insulation standard of electric wire.
At present, the insulation treatment of the electric wire after connection is realized by wrapping an insulating tape, wrapping an adhesive tape or wrapping a heat-shrinkable sleeve and the like. For example, a wraparound heat-recoverable sealing article, such as a joint between two or more wires, a wire harness, or an electronic component (e.g., a fuse, a diode, or a transistor), as disclosed in chinese patent publication No. CN1037300A, is wrapped around and sealed with a recoverable article comprising a polymer film having an involute curl portion at one end and a sealant.
Also, as disclosed in chinese patent publication No. CN101252267B, a method for hot patching a rubber jacketed cable includes wrapping a core wire with a core wire adhesive, winding the core wire with a yellow wax tape, winding three-phase core wires together with a yellow wax tape, and winding a hot patching tape.
Also, as disclosed in chinese patent publication No. CN1017763B, a self-adhesive electrical stress control tape is composed of ethylene propylene diene monomer, low-pressure polyethylene, polyisobutylene high polymer, black iron oxide and medium and ultra-wear-resistant carbon black, and the tape with adhesiveness is wound around the outer surface of the cable insulation layer at the cable terminal shield cut-off position.
The insulation repair technology after the wire connection is wound by operators, the connection randomness is high, the connection is not standard and attractive, and the short-circuit accident is caused because the insulation repair technology is easy to peel off for a long time.
Disclosure of Invention
In view of the above problems, the present invention provides a wire insulation repair system, which can be used for insulation repair after connection of a wire, so that the appearance of the wire covered with insulation is as a new wire. The invention adopts the following technical scheme:
a wire insulation repair system comprises a repair die, a cooling pipe and a control box body;
the repairing mould is coated on the electric wire connecting section and is provided with an injection hole, and repairing raw materials are injected from the injection hole to surround the electric wire connecting section;
the cooling pipe is sleeved on the periphery of the repairing mold, the cooling pipe is a hollow annular pipe, the inner cavity of the annular pipe wall is filled with water, and the repairing mold is arranged at the inner hole of the cooling pipe;
the control box body is provided with an insertion hole, and the cooling pipe and the repair mould are integrally inserted into the insertion hole;
the control box body is provided with an external water pipe, the external water pipe is connected with the cooling pipe in the control box body, and circulating water is provided through the external water pipe;
the control box body is internally provided with a circulating water control device and a heating control device, the circulating water control device controls the on-off of circulating water in the inner cavity of the annular pipe wall, the heating control device provides a high-frequency alternating magnetic field for the repairing mould, so that the repairing mould generates eddy current, and the eddy current generates heat and transmits the heat to the repairing raw material.
Preferably, the repair mold comprises a first semi-cylinder and a second semi-cylinder;
the first semi-cylinder and the second semi-cylinder are in openable butt joint through a splicing structure;
the butt joint surfaces of the two half cylinders are provided with a groove, the two grooves form a complete transverse through groove in the repairing die after butt joint, and the transverse through groove is used for coating a direct-connected wire.
Preferably, the injection hole is arranged on the first semi-cylinder and communicated with the transverse through groove.
Preferably, the second semi-cylinder is provided with a vertical through groove communicated with the transverse through groove, the vertical through groove is used for coating the T-shaped connecting wire, threads are arranged on the inner peripheral wall of the vertical through groove, and the blocking bolt is selectively inserted into the vertical through groove.
Preferably, the injection hole is provided with a one-way valve, so that the repair raw material is injected into the repair mold in one way.
Preferably, the repairing raw material is polymer insulating material powder, the polymer insulating material powder comprises an insulating material and a coagulant, the insulating material comprises one or more of polyethylene, polyvinyl chloride and alkene and rubber, and the content of the coagulant is not more than 5% of the total amount.
Preferably, the reducing of horizontal logical groove both ends reduces, and the reducing of the one end tip that vertical logical groove is close to and restores the mould surface reduces, makes horizontal logical groove both ends mouth and vertical logical groove be located the port internal diameter of restoreing the mould surface and is less than the intact section external diameter of nominal electric wire, and horizontal logical groove and vertical logical groove internal diameter all are greater than the exposed section external diameter of nominal electric wire by 0.02~0.05 mm.
Preferably, the control box body is provided with an external water inlet pipe and an external water outlet pipe, circulating water is provided through the external water inlet pipe, and the circulating water flows out through the external water outlet pipe;
the circulating water control device comprises a water flow regulating valve and a valve control module;
the cooling pipe is equipped with inlet opening, apopore, and external inlet tube links to each other with the inlet opening through the water flow control valve in the control box, and external outlet pipe links to each other with the apopore in the control box, and valve control module passes through the break-make and the flow size of control water flow control valve regulation circulating water at the annular pipe wall inner chamber.
Preferably, the control box body is connected with an external power supply and provides current for the heating control device to generate a high-frequency alternating magnetic field, and the heating control device controls the magnitude of the current through the semiconductor element to adjust eddy current generated by the repair die.
Preferably, the water pressure range of the circulating water is 0.1-0.3 Mpa, and the external power supply of the control box body (4) is alternating current 220V commercial power.
The invention has the advantages that:
1. the restoration department after the connection of electric wires is more regular, beautiful and firmer.
2. When repairing the electric wire connection, the temperature is controllable by controlling the current to adjust the eddy current, and the cooling effect is realized by adjusting the on-off and the flow of the circulating water, so that the repairing raw material can be solidified more quickly, and the repairing speed is accelerated.
3. The system has the advantages of small volume, simple structure and portability, and is suitable for various scenes.
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 construction of a wire insulation repair system;
FIG. 2 is a schematic perspective view of a repair mold according to one embodiment;
FIG. 3 is a schematic structural diagram of a first semi-cylindrical mating surface according to a first embodiment;
FIG. 4 is a schematic view of a second semi-cylindrical mating surface according to one embodiment;
FIG. 5 is a schematic side view of a repair mold according to one embodiment;
FIG. 6 is a schematic view of the structure of the cooling tube;
FIG. 7 is a functional block diagram of a wire insulation repair system;
FIG. 8 is a schematic perspective view of a repairing mold according to a second embodiment;
FIG. 9 is a schematic structural view of a second semi-cylindrical mating surface of the repairing mold according to the second embodiment;
FIG. 10 is a schematic side view of a repairing mold according to the second embodiment;
in the figure: 1. the repair die comprises a repair die body, 12, an injection hole, 10, a first semi-cylinder, 11, a second semi-cylinder, 20, a vertical through groove, 101, a plug, 102, a first groove, 111, a connector, 112, a second groove, 23, a transverse through groove, 231, an electric wire, 3, a cooling pipe, 31, a water inlet hole, 32, a water outlet hole, 4, a control box body, 41, an external water inlet pipe, 42, an external water outlet pipe, 43, an insertion hole, 44 and a power supply interface.
Detailed Description
The following description is provided for illustrative purposes and is not intended to limit the invention to the particular embodiments disclosed. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1 to 7, the present embodiment provides a wire insulation repair system including a repair mold 1, a cooling pipe 3, and a control box 4. The repairing mold 1 is coated on the wire connecting section, the repairing mold 1 is provided with an injection hole 12, and repairing raw materials are injected from the injection hole 12 so that the repairing raw materials surround the wire connecting section. The periphery of the repair mold 1 is sleeved with the cooling pipe 3, the cooling pipe 3 is a hollow annular pipe, the inner cavity of the annular pipe wall is filled with water, and the repair mold 1 is arranged at the inner hole of the cooling pipe 3. The control box 4 is provided with an insertion hole 43, and the cooling pipe 3 is inserted into the insertion hole 43 integrally with the repair mold 1. The control box body 4 is provided with an external water pipe, the external water pipe is connected with the cooling pipe 3 in the control box body 4, and circulating water is provided through the external water pipe. The control box body 4 is internally provided with a circulating water control device and a heating control device, the circulating water control device controls the on-off of circulating water in the inner cavity of the annular pipe wall, the heating control device provides a high-frequency alternating magnetic field for the repairing mould 1, so that the repairing mould 1 generates eddy current, and the eddy current generates heat and transmits the heat to the repairing raw material.
Specifically, repair mould 1 shape is the cylinder and the material is cast iron, and repair mould 1 includes first semicylinder 10, second semicylinder 11. The first semi-cylinder 10 and the second semi-cylinder 11 can be butted in an openable and closable manner through a plug structure, wherein the plug structure can be in the form of a plug 101 and a joint 112, and other connection forms can also be adopted, and only the sealed butt joint of the two half pipes is needed. The butt joint surfaces of the two semi-cylinders are provided with a groove, after butt joint, the first groove 102 and the second groove 112 form a complete transverse through groove 23 in the repairing mold 1, and the transverse through groove 23 is used for coating a direct-connected wire. The plugging structure can be in the form of the plug 101 and the joint 112, and other connection forms can also be adopted, and only the sealed butt joint of the two half pipes is realized.
The injection hole 12 is arranged on the first semi-cylinder 10, the injection hole 12 is communicated with the transverse through groove 23, and the injection hole 12 is provided with a one-way valve, so that the repairing raw materials are injected into the repairing mold 1 in a one-way mode and cannot be poured out outwards, but gas can be discharged outwards.
The repairing raw material is high-molecular insulating material powder, the high-molecular insulating material powder comprises an insulating material and a coagulant, the insulating material comprises one or more of polyethylene, polyvinyl chloride, alkene and rubber, and the content of the coagulant is not more than 5% of the total amount. The color of the repair raw material is brown or other colors different from the color of the outer layer of the wire after being solidified, so that the repaired part is distinguished from the unrepaired part after being repaired.
The two end parts of the transverse through groove 23 are reduced in diameter, so that the inner diameters of the two end openings of the transverse through groove 23 are smaller than the outer diameter of the intact section of the nominal electric wire, and the inner diameters of the transverse through groove 23 are 0.02-0.05 mm larger than the outer diameter of the exposed section of the nominal electric wire. Such setting can guarantee that the electric wire treats prosthetic length part can pass through the logical groove in repairing mould 1 smoothly, and intact department can't pass through, and the electric wire is good promptly and is supported with 1 both ends of repairing mould and touch, has also prevented the leakage of repairing the raw materials among the repair process. The repair die 1 can be manufactured to have a length of 20mm-200mm according to requirements, so that the repair die can meet the requirement of 1mm when used for repairing a direct-connected wire 2 To 240mm 2 The various electric wires need to be repaired at the electric wire connection part, and the size of the exposed part needing to be repaired cannot exceed the size of the repairing mould 1.
The cooling pipe 3 is a hollow annular pipe matched with the size of the repair mould 1 and is made of cast iron. The control box body 4 is provided with an external water inlet pipe 41 and an external water outlet pipe 42, circulating water is provided through the external water inlet pipe 41, and the circulating water flows out through the external water outlet pipe 42. The circulating water control device comprises a water flow regulating valve and a valve control module. Cooling tube 3 is equipped with inlet opening 31, apopore 32, and the pipe wall inner chamber is equipped with the coil pipe, and the circulating water can flow in this coil pipe, and the setting of coil pipe has increased the rivers area, can play better cooling effect. The external water inlet pipe 41 is connected with the water inlet hole 31 through a water flow regulating valve in the control box body 4, and the external water outlet pipe 42 is connected with the water outlet hole 32 in the control box body 4. The valve control module regulates the on-off and flow of the circulating water in the coil pipe of the inner cavity of the annular pipe wall by controlling the water flow regulating valve, and the on-off and flow can be determined according to the property of the adopted repair material. The water pressure range of the circulating water is 0.1 MPa-0.3 MPa.
The control box body 4 is also provided with a power interface 44, the power interface 44 is connected with an external power supply, the external power supply is alternating current 220V commercial power and provides current for the heating control device to generate a high-frequency alternating magnetic field, the heating control device controls the current through a semiconductor element to adjust the eddy current generated by the repairing mould 1, so that the temperature of the repairing material can be adjusted when the repairing material is heated, and the maximum temperature can reach 180 ℃.
The system is small in size, simple in structure and convenient to carry, can be suitable for various scenes, and can be further provided with an independent water tank in consideration of the fact that a water source is not arranged around each scene, a worker fills the independent water tank with water in advance, and the independent water tank is connected with an external water pipe to provide a water source so as to provide circulating water for a cooling link after electric wire repair in a scene without the water source.
The invention is further explained by explaining the working principle when the system is used for repairing the direct-connected wire specifically:
s1, opening the first semi-cylinder 10 and the second semi-cylinder 11, and placing two wires in the second groove 112 of the second semi-cylinder 11;
s2, pre-connecting two wires to be repaired, adjusting the positions of the wires to enable the two ends of the wires to be in top contact with the two sides of the second semi-cylinder 11, completing butt joint of the first semi-cylinder 10 and the second semi-cylinder 11, and enabling the wires to be repaired to be coated in the transverse through groove 23;
s3, inputting the repairing raw materials into the transverse through groove 23 through the injection hole 12, and coating the cooling pipe 3 outside the repairing mould 1;
s4, integrally inserting the repairing mould 1 and the cooling pipe 3 into the insertion hole 43 of the control box body 4, connecting the control box body 4 with an external power supply, and completing the connection of an external water pipe and the cooling pipe 3;
s5, the valve control module closes the water flow regulating valve to prevent circulating water from flowing into the inner cavity of the pipe wall of the cooling pipe 3;
s6, generating a high-frequency alternating magnetic field by the heating control device, generating eddy currents in the magnetic field by the repair die 1, generating heat by the eddy currents and transferring the heat to the repair raw material to melt the repair raw material;
s7, the valve control module opens the water flow regulating valve to enable cooling circulating water to enter the inner cavity of the pipe wall of the cooling pipe 3, so that the repairing raw material is rapidly cooled and solidified, and electric wire repairing is completed;
and S8, opening the first semi-cylinder 10 and the second semi-cylinder 11 to take out the repaired direct-connected wire.
In addition, in steps S1 and S2, the pre-connection of the wires may be performed in the first grooves 102 of the first semicylinder 10, specifically, the operation may be performed according to actual situations.
The second embodiment:
referring to fig. 8 to 10, the present embodiment provides a wire insulation repair system, which is different from the first embodiment in that a vertical through groove 20 communicated with a horizontal through groove 23 is formed in a second semi-cylinder 10 of a repair mold 1, the vertical through groove 20 is used for covering a T-junction wire, and a thread is formed on the inner peripheral wall of the vertical through groove 20, and when the T-junction of the wire is not performed, a plugging bolt is inserted into the vertical through groove 20 for plugging, so as to prevent a repair material from leaking from the vertical through groove 20 when a direct-connection wire is repaired.
Similarly, the end part of the vertical through groove 20 close to the surface of the repairing mold 1 is reduced in diameter, so that the inner diameter of the port of the vertical through groove 20 on the surface of the repairing mold 1 is smaller than the outer diameter of the intact section of the nominal electric wire, and the inner diameters of the vertical through grooves 20 are 0.02-0.05 mm larger than the outer diameter of the exposed section of the nominal electric wire.
The invention is further explained by explaining the working principle when the system is used for repairing the T-connection wire specifically:
the rest of operations are consistent with the above-mentioned repair process of directly connecting wires, and the difference lies in that, in the above-mentioned step S2, directly connect the back in advance with two electric wires, let in vertical logical groove 20 with another electric wire again to with this electric wire and the electric wire after directly connecting in advance, the adjustment electric wire position, make the electric wire finish the benefit and go up with vertical logical groove 20 notch department top touch can.
It should be noted that, for the repair of the T-connection wire, since the repair mold 1 needs to be cooled by the circulating water in the cooling pipe 3 when being cooled, the thickness of the repair mold 1 is too thick, and therefore the repair mold 1 is only suitable for repairing the T-connection wire with a short size.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. The wire insulation repair system is characterized by comprising a repair die (1), a cooling pipe (3) and a control box body (4);
the repairing mold (1) is coated on the wire connecting section, the repairing mold (1) is provided with an injection hole (12), and repairing raw materials are injected from the injection hole (12) so as to surround the wire connecting section;
the cooling pipe (3) is sleeved on the periphery of the repairing mold (1), the cooling pipe (3) is a hollow annular pipe, the inner cavity of the annular pipe wall is filled with water, and the repairing mold (1) is arranged at the inner hole of the cooling pipe (3);
the control box body (4) is provided with an insertion hole (43), and the cooling pipe (3) and the repairing mould (1) are integrally inserted into the insertion hole (43);
the control box body (4) is provided with an external water pipe, the external water pipe is connected with the cooling pipe (3) in the control box body (4), and circulating water is provided through the external water pipe;
a circulating water control device and a heating control device are arranged in the control box body (4), the circulating water control device controls the on-off of circulating water in an inner cavity of the annular pipe wall, the heating control device provides a high-frequency alternating magnetic field for the repairing mould (1), so that the repairing mould (1) generates eddy current, and the eddy current generates heat and transmits the heat to a repairing raw material;
the cooling pipe (3) is a hollow annular pipe matched with the repairing mould (1) in size and is made of cast iron;
the repairing mould (1) comprises a first semi-cylinder (10) and a second semi-cylinder (11);
the first semicylinder (10) and the second semicylinder (11) can be butted in an openable and closable manner through an inserting structure;
the butt joint surfaces of the two half cylinders are provided with a groove, the two grooves form a complete transverse through groove (23) in the repairing die (1) after butt joint, and the transverse through groove (23) is used for coating a direct-connected wire;
the second semi-cylinder (11) is provided with a vertical through groove (20) communicated with the transverse through groove (23), the vertical through groove (20) is used for coating the T-connection wire, threads are arranged on the inner peripheral wall of the vertical through groove (20), and a plugging bolt can be selectively inserted into the vertical through groove (20).
2. The insulation repair system for electric wire according to claim 1, wherein the injection hole (12) is provided in the first semi-cylinder (10), and the injection hole (12) communicates with the transverse through groove (23).
3. The insulation repair system for electric wire according to any one of claims 1 to 2, wherein the injection hole (12) is provided with a check valve for allowing one-way injection of the repair material into the repair mold (1).
4. The wire insulation repair system according to claim 3, wherein the repair material is polymer insulating material powder, the polymer insulating material powder comprises an insulating material and a coagulant, the insulating material comprises one or more of polyethylene, polyvinyl chloride and rubber, and the content of the coagulant is not more than 5% of the total amount.
5. The wire insulation repair system according to claim 1, wherein two end portions of the transverse through groove (23) are reduced in diameter, one end portion of the vertical through groove (20) close to the surface of the repair mold (1) is reduced in diameter, so that inner diameters of two ports of the transverse through groove (23) and a port of the vertical through groove (20) on the surface of the repair mold (1) are smaller than the outer diameter of a nominal wire intact section, and inner diameters of the transverse through groove (23) and the vertical through groove (20) are 0.02-0.05 mm larger than the outer diameter of a nominal wire exposed section.
6. The wire insulation repair system according to claim 1, wherein the control box body (4) is provided with an external water inlet pipe (41) and an external water outlet pipe (42), circulating water is supplied through the external water inlet pipe (41), and the circulating water flows out through the external water outlet pipe (42);
the circulating water control device comprises a water flow regulating valve and a valve control module;
the cooling pipe (3) is provided with a water inlet hole (31) and a water outlet hole (32), an external water inlet pipe (41) is connected with the water inlet hole (31) in the control box body (4) through a water flow regulating valve, an external water outlet pipe (42) is connected with the water outlet hole (32) in the control box body (4), and a valve control module regulates the on-off and the flow of circulating water in an inner cavity of the annular pipe wall through the water flow regulating valve.
7. The wire insulation repair system according to claim 1, wherein the control box (4) is connected to an external power supply to supply current to the heating control device to generate the high-frequency alternating magnetic field, and the heating control device controls the current magnitude through the semiconductor element to adjust the eddy current generated by the repair mold (1).
8. The wire insulation repair system according to claim 7, wherein the water pressure range of the circulating water is 0.1 Mpa-0.3 Mpa, and the external power supply of the control box (4) is alternating current 220V commercial power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011371746.5A CN112653035B (en) | 2020-11-30 | 2020-11-30 | Wire insulation repair system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011371746.5A CN112653035B (en) | 2020-11-30 | 2020-11-30 | Wire insulation repair system |
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| CN112653035A CN112653035A (en) | 2021-04-13 |
| CN112653035B true CN112653035B (en) | 2022-09-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115224639B (en) * | 2022-07-29 | 2023-11-03 | 上海蓝昊电气江苏有限公司 | Self-heating rubber jacketed flexible cable repair die and repair process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964845A (en) * | 1974-12-26 | 1976-06-22 | Schlumberger Technology Corporation | Apparatus for repairing conductor insulation |
| JP2008259393A (en) * | 2007-03-09 | 2008-10-23 | Three M Innovative Properties Co | Reinforcing sheet for electric wire, and repairing method using the same |
| CN108493855A (en) * | 2018-04-02 | 2018-09-04 | 国家电网公司 | Electric power repairing pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202615939U (en) * | 2012-05-17 | 2012-12-19 | 天津亿鑫通科技股份有限公司 | A control device for preheating an outer mould of a cable extruder |
| CN105048365B (en) * | 2015-08-12 | 2017-06-23 | 清华大学 | The on-line automatic maintenance of non-intrusion type high voltage electric transmission cable and defect repair system |
| CN108407248A (en) * | 2018-04-03 | 2018-08-17 | 辽宁农业职业技术学院 | A kind of anti-analysis carbon die heater of the oily formula of efficient vortex heating fortune |
| CN209071785U (en) * | 2018-11-20 | 2019-07-05 | 嘉兴市新缆电缆有限公司 | A kind of cable insulation prosthetic device |
| CN209947544U (en) * | 2019-02-20 | 2020-01-14 | 圣安电缆有限公司 | Cable repairing device |
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2020
- 2020-11-30 CN CN202011371746.5A patent/CN112653035B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964845A (en) * | 1974-12-26 | 1976-06-22 | Schlumberger Technology Corporation | Apparatus for repairing conductor insulation |
| JP2008259393A (en) * | 2007-03-09 | 2008-10-23 | Three M Innovative Properties Co | Reinforcing sheet for electric wire, and repairing method using the same |
| CN108493855A (en) * | 2018-04-02 | 2018-09-04 | 国家电网公司 | Electric power repairing pipe |
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| CN112653035A (en) | 2021-04-13 |
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