CN113690806A - Cable sheath repairing device and using method - Google Patents
Cable sheath repairing device and using method Download PDFInfo
- Publication number
- CN113690806A CN113690806A CN202110880050.3A CN202110880050A CN113690806A CN 113690806 A CN113690806 A CN 113690806A CN 202110880050 A CN202110880050 A CN 202110880050A CN 113690806 A CN113690806 A CN 113690806A
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- main body
- powder
- channel
- gas cylinder
- cable sheath
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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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/127—Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours or other carbon-containing compounds in the form of gas or vapour, e.g. carbon monoxide, alcohols
- D01F9/1273—Alkenes, alkynes
- D01F9/1275—Acetylene
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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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The invention belongs to the field of cable repair, and particularly relates to a cable sheath repair device and a use method thereof. The device comprises: the main body is divided into a head part and a tail part; the rear end of the head part is provided with a gas cylinder mounting port for connecting and mounting a high-pressure acetylene gas cylinder; the main body is provided with a slot, a channel for communicating the slot and the cylinder is arranged in the slot and parallel to the axial lead of the mounting port of the cylinder, and a pushing rod capable of moving in the channel in two directions is arranged in the channel; the front end of the head of the main body is provided with a jet hole, and the jet hole is communicated with the gas cylinder mounting port through a jet flow channel; the main body is also provided with a powder groove which is communicated with the air jet channel through a material spraying channel; the powder groove is used for arranging catalyst powder and is matched with a piston piece used for compacting the catalyst powder; the powder trough is provided with an electric heating net at the joint of the powder trough and the spraying runner, and the main body is provided with a heating motor for heating the electric heating net. The invention can quickly and efficiently realize the non-contact repair of the cable sheath.
Description
Technical Field
The invention belongs to the field of cable repair, and particularly relates to a cable sheath repair device and a use method thereof.
Background
In daily life, infrastructures such as optical cables and electric cables are used for communication, power transmission and the like in most occasions, and the infrastructures are generally called cables.
Among them, the overhead cable is usually erected at a height of several meters or even several tens of meters, and once the sheath on the surface of the overhead cable is damaged, the constructor needs to perform overhead work with a certain risk. In addition, although the optical cable is not electrified, the optical cable and the cable are often arranged together, which causes a greater potential safety hazard when the cable is repaired in overhead operation.
Therefore, how to realize a non-contact and effective quick repair for the cable is a key for improving the safety and convenience of high-altitude repair of the cable.
Disclosure of Invention
The invention provides a cable sheath repairing device and a using method thereof, aiming at solving the problems that the existing cable repairing usually needs to contact with a cable, the construction operation risk of constructors is increased, meanwhile, the existing repairing process usually needs to be subjected to treatment such as power failure, the efficiency is low, the repairing effect is limited, and the like.
The invention aims to:
firstly, the non-contact repair of the cable can be realized;
secondly, ensuring that the device has a better repairing effect;
and thirdly, the repair efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme.
A cable jacket repair device comprising:
the main body is divided into a head part and a tail part;
the rear end of the head part is provided with a gas cylinder mounting port for connecting and mounting a high-pressure acetylene gas cylinder;
the main body is provided with a slot, a channel for communicating the slot and the cylinder mounting opening is arranged in the slot and parallel to the axial lead of the cylinder mounting opening, and a pushing rod capable of moving in the channel in two directions along the axial lead of the cylinder mounting opening is arranged in the channel;
the front end of the head of the main body is provided with a jet hole, and the jet hole is communicated with the gas cylinder mounting port through a jet flow channel;
the main body is also provided with a powder groove which is communicated with the air jet channel through a material spraying channel;
the powder groove is used for arranging catalyst powder and is matched with a piston piece used for compacting the catalyst powder;
the powder trough is provided with an electric heating net at the joint of the powder trough and the spraying runner, and the main body is provided with a heating motor for heating the electric heating net.
As a preference, the first and second liquid crystal compositions are,
and a rotary shifting piece is further arranged in the groove and hinged with the main body, and the bottom end of the rotary shifting piece is hinged with the pushing and pressing rod.
As a preference, the first and second liquid crystal compositions are,
the piston piece consists of a connecting part, a sealing part and a baffle plate part, and two ends of the connecting part are fixedly connected with the sealing part and the baffle plate part respectively;
the baffle portion is disposed outside the main body.
As a preference, the first and second liquid crystal compositions are,
and an elastic sealing element with opened pressure is arranged at the joint of the material spraying flow passage and the powder groove.
As a preference, the first and second liquid crystal compositions are,
and electric heating nets are embedded in the connecting part of the powder trough and the material spraying flow passage, the powder trough close to the connecting part and the inner wall of the material spraying flow passage.
As a preference, the first and second liquid crystal compositions are,
the main body is made of a heat insulating material.
As a preference, the first and second liquid crystal compositions are,
the catalyst powder is [ Mn0.3Co0.15Mg0.15Zn0.15Al0.15Fe0.1(OH)2] (CO3) 0.125. mH2O, and m is more than or equal to 1.
A using method of a cable sheath repairing device,
the method comprises the following steps:
1) a high-pressure acetylene gas cylinder is arranged at a gas cylinder mounting port of the cable sheath repairing device;
2) turning on a heating motor to preheat the electric heating net;
3) aligning a spray hole of the cable sheath repairing device to a damage point of the cable;
4) and pushing the pushing rod to release the high-pressure acetylene gas in the high-pressure acetylene gas cylinder, and continuously purging for 30-120 s aiming at the damage point of the cable.
As a preference, the first and second liquid crystal compositions are,
step 1), after the installation of the high-pressure acetylene gas cylinder is finished, testing the gas pressure in the high-pressure acetylene gas cylinder;
the method for testing the air pressure in the high-pressure acetylene cylinder comprises the following steps:
the hand is placed 20-25 cm in front of the spray hole, the heating motor is not started, high-pressure acetylene gas is released only through the pushing rod, and the use condition is met when the hand feeling is obviously influenced by air flow.
As a preference, the first and second liquid crystal compositions are,
and 3) the distance between the spray hole and the damage point of the cable is 10-15 cm.
The invention has the beneficial effects that:
1) the sheath repairing of the cable can be realized rapidly and efficiently;
2) the non-contact safe repair can be realized;
3) the operation is simple, and the repairing effect is good.
Description of the drawings:
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 2;
FIG. 5 is a schematic illustration of the elastomeric seal of FIG. 4 with the elastomeric seal open;
FIG. 6 is a dynamic schematic view of the device of the present invention in a use state after installation of a high pressure acetylene cylinder;
FIG. 7 is a schematic diagram of the method of using the apparatus of the present invention;
in the figure: 10 cable sheath repair device, 100 main part, 101 head, 1011 fluting, 1012 orifice, 1013 gas cylinder installing port, 10131 internal thread, 102 afterbody, 1021 bearing surface, 1022 powder groove, 103 spouts the material runner, 104 spouts the gas channel, 105 elastic sealing member, 200 revolves the piece, 201 hinge groove, 202 bulldozes the pole, 300 piston spare, 301 connecting portion, 302 sealing portion, 303 baffle portion, 400 heating motor, 401 button, 402 electric heat net, 500 high-pressure acetylene gas cylinder, 501 gas cylinder sealing member, 600 jet, 700 cable, 701 damaged point.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely 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 and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; 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.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Examples
A cable 700 sheath repair device 10 as shown in fig. 1, 2 and 3, comprising in particular:
a body 100, the body 100 being divided into a head 101 and a tail 102, the head 101 being larger than the tail 102 in a longitudinal direction;
the rear end of the part of the head part 101 higher than the tail part 102 is provided with a gas cylinder mounting port 1013 which is opened towards the back and used for connecting and mounting the high-pressure acetylene gas cylinder 500, and the gas cylinder mounting port 1013 is provided with an internal thread 10131 matched with a conventional pressing type high-pressure gas cylinder;
the upper end surface of the tail part 102 is a supporting surface 1021 for supporting and assisting in fixing the high-pressure acetylene gas cylinder 500;
the head 101 of the main body 100 is provided with a slot 1011, the inside wall or the bottom of the slot 1011 and the bottom of the gas cylinder mounting port 1013 are provided with a channel for communicating the two along the axial lead of the gas cylinder mounting port 1013, a push rod 202 capable of performing bidirectional movement in the channel along the axial lead of the gas cylinder mounting port 1013 as shown in the direction b in fig. 2 is arranged in the channel, the push rod 202 is in sealing contact with the channel wall, the push rod 202 moves towards the gas cylinder mounting port 1013 along the direction b in the figure, and the front end of the high-pressure acetylene gas cylinder 500 can be pushed open to release acetylene gas;
a turning piece 200 is further arranged in the slot 1011, the turning piece 200 is hinged with the main body 100, as shown in fig. 1, the turning piece 200 is provided with an oblong hinge groove 201 which is hinged with the main body 100, the turning piece 200 can rotate in two directions around the hinged position along the direction a, the bottom end of the turning piece 200 is hinged with the push rod 202, and the turning piece 200 can drive the push rod 202 to move in the direction b in the channel to push the gas cylinder mounting port 1013 or keep away from the gas cylinder mounting port 1013 when rotating;
the front end of the head part 101 of the main body 100 is provided with a jet hole 1012, and the jet hole 1012 is communicated with the gas cylinder mounting port 1013 through a jet flow channel 104;
as shown in fig. 6, after the high-pressure acetylene gas cylinder 500 is mounted on the main body 100, the rotation dial piece 200 is rotated to drive the push rod 202 to push the high-pressure acetylene gas cylinder 500 along the direction b, and push open the gas cylinder sealing piece 501 in the high-pressure acetylene gas cylinder 500, so as to release the high-pressure acetylene gas, after the rotation dial piece 200 is loosened, under the action of the high-pressure acetylene gas, the push rod 202 and the rotation dial piece 200 can realize automatic reset, and the high-pressure acetylene gas cylinder 500 recovers the sealed state;
the main body 100 is further provided with a powder groove 1022, which is provided with an opening and is provided with a piston member 300 in a matching manner, in the embodiment, the powder groove 1022 is arranged in the tail part 102 of the main body 100, the piston member 300 is composed of a connecting part 301, a sealing part 302 and a baffle part 303, two ends of the connecting part 301 are fixedly connected with the sealing part 302 and the baffle part 303 respectively to form an integral body of the piston member 300, the baffle part 303 is arranged outside the main body 100, and the sealing part 302 is arranged in the powder groove 1022 and is connected with the powder groove 1022 in a sealing manner;
catalyst powder is arranged in the powder groove 1022, and the catalyst powder is filled in the powder groove 1022 and compacted by the piston member 300;
the powder groove 1022 is communicated with the middle part of the air injection flow passage 104 through the material injection flow passage 103;
as shown in fig. 4, an elastic sealing member 105 with pressure opening is arranged at the joint of the material spraying flow passage 103 and the powder groove 1022; the elastic sealing member 105 blocks and seals the powder groove 1022 and the injection flow channel 103 in a reset state, so that the catalyst powder in the powder groove 1022 is prevented from entering the injection flow channel 103, and the elastic sealing member 105 is opened after a pressure difference is generated between both sides of the elastic sealing member 105, as shown in fig. 5, when a High pressure area (High pressure area) is formed at the right side of the elastic sealing member 105 and a Low pressure area (Low pressure area) is formed at the left side of the elastic sealing member 105, the elastic sealing member 105 is opened under the action of pressure.
In addition, the connection between the powder trough 1022 and the injection runner 103, and the outer walls of the powder trough 1022 and the injection runner 103 near the connection are covered with the electric heating net 402 or embedded in the corresponding inner wall. In this embodiment, the electric heating net 402 is embedded in the connection between the powder trough 1022 and the injection runner 103 and the inner walls of the powder trough 1022 and the injection runner 103 near the connection, and the main body 100 is made of an insulating material, in this embodiment, the main body 100 is made of an aluminum silicate insulating ceramic fiber material;
the heating motor 400 is arranged on the main body 100, the heating motor 400 is provided with a key 401, the key 401 comprises a power switch, a heating switch and the like, the heating motor 400 is electrically connected with an electric heating net 402, the heating motor 400 only adopts the existing small-sized heating motor, and the combination of the heating motor and the electric heating net with the heating temperature of more than 400 ℃ is preferably selected;
after the heating motor is connected with the electric heating net, the power supply of the heating motor is turned on and is controlled to heat the electric heating net, and then the catalyst powder in the powder groove 1022 can be preheated, so that the catalyst powder is activated.
In the present invention, the catalyst powder is:
[Mn0.3Co0.15Mg0.15Zn0.15Al0.15Fe0.1(OH)2](CO3)0.125·mH2O，m≥1。
the catalyst powder is hexagonal hydrotalcite catalyst powder, and the specific preparation method comprises the following steps:
preparing a mixed salt solution of A-type salt and B-type salt, adding urea, carrying out hydrothermal reaction for 24 hours at 105 ℃, filtering, separating, cleaning with absolute ethyl alcohol, drying a solid product at 60 ℃, and sieving with a 60-mesh sieve to obtain hexagonal hydrotalcite catalyst powder;
in the mixed salt solution:
salts of type A: MnCl2、CoCl2、MgCl2And ZnCl2In a molar ratio of 4:2:2: 2;
salts of type B: AlCl3And FeCl3In a molar ratio of 6: 4;
the total molar concentration of the A-type salt and the B-type salt is 1.2mol/L, wherein the total molar concentration of the A-type salt is 0.9mol/L, and the total molar concentration of the B-type salt is 0.3 mol/L;
the urea is added in a proportion of 5mol/L per liter of mixed salt solution.
The hexagonal crystal hydrotalcite powder can catalyze and reduce carbon-containing gases such as acetylene and ethylene, and grows in situ on the surface of the catalyst powder to form carbon fibers with good mechanical properties. The acetylene gas is used as the most easily reduced carbon-containing gas, has higher adaptability with the technical scheme of the invention, is used for quickly repairing cables such as optical cables or electric cables in a non-contact way, and has excellent performance effect.
Specifically, the method of the invention comprises the following steps:
the acetylene airflow moving rapidly drives the preheated and activated catalyst powder to sweep the damaged part of the cable, the temperature of the preheated and activated catalyst powder can reach 400-500 ℃, the temperature is reduced in the conveying process, the temperature is still slightly higher than the melting point of a sheath on the surface of the cable, the surface of the sheath of the cable can be embedded without strong impact force, the acetylene airflow is subjected to catalytic reduction in situ to form carbon fibers, and the damaged part of the cable is repaired.
The use method of the device is shown in figures 6 and 7:
firstly, a high-pressure acetylene gas cylinder 500 is installed, and whether the gas in the high-pressure acetylene gas cylinder is sufficient is checked before use, wherein the verification method comprises the following steps: placing the hand 20cm in front of the spray hole 1012, and only poking the rotary poking piece to release high-pressure acetylene gas without starting the heating motor, wherein if the hand feels obviously powerful airflow, the air pressure is sufficient;
pulling out the piston member 300, filling a sufficient amount of catalyst powder into the frit groove 1022, and then pushing the piston member 300 into the frit groove 1022 to compact the catalyst powder in the frit groove 1022 with the sealing portion 302;
the damaged point 701 of the cable is quickly confirmed, a heating motor 400 of the cable sheath repair device is started, an electric heating net 402 is heated and preheated to be above 180 ℃, then the spraying holes 1012 are aligned with the damaged point 701 of the cable and are spaced by about 10-15 cm, the rotary shifting piece 200 is shifted to drive the pushing rod 202 to push away a gas cylinder sealing piece 501 in a high-pressure acetylene gas cylinder, the high-pressure acetylene gas is released, the high-pressure acetylene gas quickly moves to the spraying holes 1012 in the gas spraying channel 104 along the direction c in fig. 6 to form spraying holes 600 to be sprayed out, in the process, due to the fact that gas in the gas spraying channel 104 quickly flows and the gas pressure is reduced, a negative pressure area is formed relative to the spraying channel 103, the gas in the spraying channel 103 is also taken out, and the gas in the spraying channel 103 is caused to be reduced in the direction d in fig. 6; the connection part with the powder groove 1022 is the highest pressure part of the material spraying flow channel 103, but is still lower than the normal pressure, so as shown in fig. 5, the elastic sealing element 105 is opened under the action of pressure difference, and due to the negative pressure, the catalyst powder in the powder groove 1022 is gradually taken out, part of the catalyst enters the material spraying flow channel 103 under the action of negative pressure, and finally is sent into the air spraying flow channel 104 to be sprayed on the damaged point 701 of the cable together with acetylene gas, and the effective repair of the cable sheath can be realized within about 30-120 s after the rotary stirring piece 200 is stirred.
As in the present embodiment, the damaged area of the cable is about 1.1cm2When the damaged point having the maximum damaged depth of about 2mm is repaired quickly, the total time required from the time of pulling the rotary dial 200 is about 48 seconds. And (3) detecting the waterproofness of the repaired repairing point, wherein the detection result shows that the repaired point completely meets the regulations on waterproofness in the national standards of optical cables and/or electric cables.
Compared with the conventional repairing mode, the invention adopts non-contact repairing and has higher safety. Particularly, when the electrified cable or the electrified cable exists around the electrified cable, the non-contact repair without power failure can be realized, and the non-contact repair method is high in applicability and excellent in repair effect.
Claims (10)
1. A cable sheath repair device, comprising:
the main body is divided into a head part and a tail part;
the rear end of the head part is provided with a gas cylinder mounting port for connecting and mounting a high-pressure acetylene gas cylinder;
the main body is provided with a slot, a channel for communicating the slot and the cylinder mounting opening is arranged in the slot and parallel to the axial lead of the cylinder mounting opening, and a pushing rod capable of moving in the channel in two directions along the axial lead of the cylinder mounting opening is arranged in the channel;
the front end of the head of the main body is provided with a jet hole, and the jet hole is communicated with the gas cylinder mounting port through a jet flow channel;
the main body is also provided with a powder groove which is communicated with the air jet channel through a material spraying channel;
the powder groove is used for arranging catalyst powder and is matched with a piston piece used for compacting the catalyst powder;
the powder trough is provided with an electric heating net at the joint of the powder trough and the spraying runner, and the main body is provided with a heating motor for heating the electric heating net.
2. The cable sheath repair device according to claim 1,
and a rotary shifting piece is further arranged in the groove and hinged with the main body, and the bottom end of the rotary shifting piece is hinged with the pushing and pressing rod.
3. The cable sheath repair device according to claim 1,
the piston piece consists of a connecting part, a sealing part and a baffle plate part, and two ends of the connecting part are fixedly connected with the sealing part and the baffle plate part respectively;
the baffle portion is disposed outside the main body.
4. The cable sheath repair device according to claim 1,
and an elastic sealing element with opened pressure is arranged at the joint of the material spraying flow passage and the powder groove.
5. The cable sheath repair device according to claim 1,
and electric heating nets are embedded in the connecting part of the powder trough and the material spraying flow passage, the powder trough close to the connecting part and the inner wall of the material spraying flow passage.
6. The cable sheath repair device according to claim 1,
the main body is made of a heat insulating material.
7. The cable sheath repair device according to claim 1,
the catalyst powder is [ Mn0.3Co0.15Mg0.15Zn0.15Al0.15Fe0.1(OH)2](CO3)0.125·mH2O，m≥1。
8. A using method of a cable sheath repairing device is characterized in that,
the method comprises the following steps:
1) a high-pressure acetylene gas cylinder is arranged at a gas cylinder mounting port of the cable sheath repairing device;
2) turning on a heating motor to preheat the electric heating net;
3) aligning a spray hole of the cable sheath repairing device to a damage point of the cable;
4) and pushing the pushing rod to release the high-pressure acetylene gas in the high-pressure acetylene gas cylinder, and continuously purging for 30-120 s aiming at the damage point of the cable.
9. Use according to claim 8,
step 1), after the installation of the high-pressure acetylene gas cylinder is finished, testing the gas pressure in the high-pressure acetylene gas cylinder;
the method for testing the air pressure in the high-pressure acetylene cylinder comprises the following steps:
the hand is placed 20-25 cm in front of the spray hole, the heating motor is not started, high-pressure acetylene gas is released only through the pushing rod, and the use condition is met when the hand feeling is obviously influenced by air flow.
10. Use according to claim 8,
and 3) the distance between the spray hole and the damage point of the cable is 10-15 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880050.3A CN113690806B (en) | 2021-08-02 | 2021-08-02 | Cable sheath repairing device and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880050.3A CN113690806B (en) | 2021-08-02 | 2021-08-02 | Cable sheath repairing device and using method |
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| CN113690806A true CN113690806A (en) | 2021-11-23 |
| CN113690806B CN113690806B (en) | 2022-09-06 |
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| CN202110880050.3A Active CN113690806B (en) | 2021-08-02 | 2021-08-02 | Cable sheath repairing device and using method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873703A (en) * | 1997-01-22 | 1999-02-23 | General Electric Company | Repair of gamma titanium aluminide articles |
| US20100154630A1 (en) * | 2008-12-05 | 2010-06-24 | Matheson Tri-Gas, Inc. | Acetylene process gas purification methods and systems |
| US20120103654A1 (en) * | 2009-06-30 | 2012-05-03 | Electricite De France | Maintenance of electric cables by self-repairing |
| CN110616627A (en) * | 2019-09-26 | 2019-12-27 | 湖南交通职业技术学院 | Quick patching device of bituminous paving crack |
| CN111711128A (en) * | 2020-06-29 | 2020-09-25 | 东阳罗素电子科技有限公司 | Cable repairing device capable of expelling rodent |
| CN111929781A (en) * | 2020-08-11 | 2020-11-13 | 杭州富通通信技术股份有限公司 | Temporary sheath for optical cable |
| CN111952004A (en) * | 2020-07-07 | 2020-11-17 | 陆则龙 | Cable protective sheath that prevents frostbite of low temperature self-heating type |
-
2021
- 2021-08-02 CN CN202110880050.3A patent/CN113690806B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873703A (en) * | 1997-01-22 | 1999-02-23 | General Electric Company | Repair of gamma titanium aluminide articles |
| US20100154630A1 (en) * | 2008-12-05 | 2010-06-24 | Matheson Tri-Gas, Inc. | Acetylene process gas purification methods and systems |
| US20120103654A1 (en) * | 2009-06-30 | 2012-05-03 | Electricite De France | Maintenance of electric cables by self-repairing |
| CN110616627A (en) * | 2019-09-26 | 2019-12-27 | 湖南交通职业技术学院 | Quick patching device of bituminous paving crack |
| CN111711128A (en) * | 2020-06-29 | 2020-09-25 | 东阳罗素电子科技有限公司 | Cable repairing device capable of expelling rodent |
| CN111952004A (en) * | 2020-07-07 | 2020-11-17 | 陆则龙 | Cable protective sheath that prevents frostbite of low temperature self-heating type |
| CN111929781A (en) * | 2020-08-11 | 2020-11-13 | 杭州富通通信技术股份有限公司 | Temporary sheath for optical cable |
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| CN113690806B (en) | 2022-09-06 |
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