CN112510390B - Electric power wire cable head telescopic sleeve safety device - Google Patents
Electric power wire cable head telescopic sleeve safety device Download PDFInfo
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- CN112510390B CN112510390B CN202011347936.3A CN202011347936A CN112510390B CN 112510390 B CN112510390 B CN 112510390B CN 202011347936 A CN202011347936 A CN 202011347936A CN 112510390 B CN112510390 B CN 112510390B
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- circular tube
- buckle
- cable
- telescopic
- stopper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
Abstract
The application provides a flexible cover safety device of electric wire cable head for electric power, device easy dismounting, occupation space is little, loosens the terminal after, and the movable sleeve auto-eject can realize automatically that it keeps apart with the electrified position of metal is insulating, forms with the external world insulatedly, and insulating isolation process time is extremely short, prevents that personnel from electrocuting. The device need not to dismantle once the installation, and convenient to use can use for a long time with electricity, and operation process is convenient, can not cause personnel to electrocute among the operation process, also can not cause cable short circuit or ground connection to need not to do insulating parcel among the cable maintenance process, operation maintenance efficiency is high. The problems that at present, live cables easily cause electric shock to personnel and short circuit or grounding of a cable loop in the disconnecting and connecting working process are solved, and the efficiency of opening a circuit of a secondary loop of equipment and searching for faults of equipment due to loosening of terminal wiring is effectively improved.
Description
Technical Field
The application relates to the technical field of wiring and cable wiring installation, in particular to a safety protection device for a telescopic sleeve of a cable head of an electric power wire.
Background
The power cable is the most important equipment for electric energy transmission and transmission, the most common work in the maintenance work of the power equipment is the disconnection and connection work of the cable, and the risk of electric shock of workers caused by touching the metal transmission medium part of the cable exists in the working process; in addition, short circuit or grounding of the power cable loop is easy to cause equipment failure and equipment insulation damage to cause fire, so that short circuit or grounding of an alternating current loop and a direct current loop cannot be caused during work development.
In the power cable equipment overhauls the maintenance in-process, wrap up naked cable core for adopting insulating tape to the processing method that naked metal segment is most used, need directly wrap up electrified metal site with insulating tape, at insulating parcel in-process, often because staff's incorrect manipulation, cause personnel to touch cable core metal segment and take place to electrocute, it is not tight also can take place to insulate the parcel, causes the risk of electrocuteeing, alternating current-direct current short circuit. In addition, after the insulating tape is wrapped for a period of time, the wrapped insulating tape can fall off due to the influence of thermal expansion and cold contraction of the environment.
In the operation and maintenance process of power equipment, one of the most common reasons for causing equipment device abnormity or device failure is device abnormity caused by loosening of wiring cable terminals, and because the secondary loop terminals of the equipment have more wiring, in the failure finding process, the cable terminals need to be checked one by one, a great amount of time and energy are often needed to determine failure points, and the working efficiency is low.
Disclosure of Invention
In order to solve the problems, the application provides a telescopic sleeve safety protection device for a cable head of an electric power wire, which aims to solve the problems that potential safety hazards and troubleshooting difficulty are easily caused in the cable disconnecting and connecting process.
In order to achieve the purpose, the application is realized by the following technical scheme:
a safety protection device for a cable head telescopic sleeve of an electric wire for electric power comprises a movable sleeve and a telescopic circular tube which are sleeved with each other;
the movable sleeve comprises a first circular tube, a second circular tube and a first stopper;
the second circular pipe is positioned in the first circular pipe, one end of the first circular pipe is connected with one end of the second circular pipe, and the other end of the first circular pipe is fixedly connected with the first stopper;
a second stopper is arranged at one end of the telescopic circular tube, which is positioned in the movable sleeve, and the second stopper is positioned in the movable sleeve;
the telescopic circular tube is provided with a first buckle and a second buckle, and the first buckle and the second buckle are both wedge-shaped.
Optionally, a connecting piece is arranged at one end of the first circular tube, which is far away from the first stopper;
the connecting piece is fixedly connected with one end of the second circular tube.
Optionally, the movable sleeve further comprises a spring;
one end of the spring is abutted against the connecting piece, and the other end of the spring is abutted against the second blocking piece.
Optionally, a protrusion is arranged at one end of the first circular tube, which is far away from the first stopper;
the protrusion is located on the outer wall of the first circular tube.
Optionally, the device further comprises a protective cover;
the protective cover is provided with a groove, and the groove is matched with the protrusion.
Optionally, a fastening piece is arranged at one end of the telescopic circular tube, which is far away from the second stopper.
According to the technical scheme, the electric power wire cable head telescopic sleeve safety protection device provided by the embodiment of the application has the advantages that the device is convenient to disassemble and assemble, the occupied space is small, after the terminal is loosened, the movable sleeve is automatically popped out, the movable sleeve can be automatically isolated from the electrified part of metal in an insulating mode, the movable sleeve is isolated from the outside, the time of the insulating isolation process is extremely short, and people are prevented from electric shock. The device need not to dismantle in the installation once, and convenient to use can use for a long time with electricity, and operation process is convenient, can not cause personnel to electrocute among the operation process, also can not cause cable short circuit or ground connection to need not to do insulating parcel among the cable repair maintenance process, operation maintenance efficiency is high. The problems that at present, live cables easily cause electric shock to personnel and short circuit or grounding of a cable loop in the disconnecting and connecting working process are solved, and the efficiency of opening a circuit of a secondary loop of equipment and searching for faults of equipment due to loosening of terminal wiring is effectively improved.
Drawings
In order to more clearly describe the technical solution of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a top view of a telescopic sleeve safety device for a cable head of an electric power wire according to an embodiment of the present disclosure;
fig. 2 is a cross-sectional structural view of a safety device for a retractable sheath of a cable head of an electric power wire according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an active cannula in an embodiment of the present application;
FIG. 4 is a cut-away view of an active cannula according to an embodiment of the present application;
FIG. 5 is a side view of an active cannula according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a telescopic circular tube in the embodiment of the present application;
FIG. 7 is a side view of a telescoping tube in an embodiment of the present application;
FIG. 8 is a schematic view illustrating an installation of a cable head telescopic sleeve safety protection device for an electric power wire in an embodiment of the present application;
fig. 9 is another schematic installation diagram of a cable head telescopic sleeve safety protection device for an electric power wire according to an embodiment of the present application.
In the figure, 1-movable sleeve, 11-first round tube, 111-connecting piece, 112-protrusion, 12-second round tube, 13-first stopper, 14-spring, 2-telescopic round tube, 21-second stopper, 22-first buckle, 23-second buckle, 24-fastener, 3-protective cover, 31-groove, 4-cable, 5-cable core, 6-terminal and 61-mounting screw.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the application easier to understand, the application is further described in the following combined with the specific embodiments.
Fig. 1 is a structure plan view of electric power wire cable head telescopic sleeve safety device in the embodiment of this application, and fig. 2 is a section structure chart of electric power wire cable head telescopic sleeve safety device in the embodiment of this application, refer to fig. 1 and fig. 2, an electric power wire cable head telescopic sleeve safety device, the device is including the movable sleeve 1 and the flexible pipe 2 of establishing of overlapping each other, flexible pipe 2 can be in the telescopic motion of movable sleeve 1, flexible pipe 2 is used for fixing the outside at the 4 ends of cable of connecting. FIG. 3 is a schematic structural view of an active cannula in an embodiment of the present application, FIG. 4 is a sectional view of the active cannula in the embodiment of the present application, and FIG. 5 is a side view of the active cannula in the embodiment of the present application; referring to fig. 1 to 5, the movable sleeve 1 includes a first circular tube 11, a second circular tube 12 and a first stopper 13, the second circular tube 12 is located inside the first circular tube 11, one end of the first circular tube 11 is connected to one end of the second circular tube 12, and the other end of the first circular tube 11 is fixedly connected to the first stopper 13.
Fig. 6 is a schematic structural view of a telescopic circular tube in the embodiment of the present application, and fig. 7 is a side view of the telescopic circular tube in the embodiment of the present application; referring to fig. 1 to 7, a second stopper 21 is disposed at one end of the telescopic circular tube 2 located inside the movable sleeve 1, and the second stopper 21 is located inside the movable sleeve 1. The first stopper 13 can block the second stopper 21 inside the first circular tube 11, preventing the telescopic circular tube 2 from separating from the movable sleeve 1.
The telescopic circular tube 2 is provided with a first buckle 22 and a second buckle 23, the first buckle 22 and the second buckle 23 are both wedge-shaped, the first buckle 22 and the second buckle 23 are aligned with the concave position of the first stopper 13, the telescopic circular tube 2 can be retracted into the first circular tube 11, when the second buckle 23 completely enters the first circular tube 11, the telescopic circular tube 2 is rotated to enable the second buckle 23 to be abutted against the first stopper 13, the second buckle 23 can be clamped in the first circular tube 11, and the telescopic circular tube 2 is retracted into the first circular tube 11. The angle of inclination of the first catch 22 is directed towards the second catch 23 and the angle of inclination of the second catch 23 is directed towards the first catch 22. A striking color, such as red, can be painted between the first buckle 22 and the second buckle 23, so that the fault position can be quickly located when a fault occurs. The quantity of first buckle 22 and second buckle 23 is four, four first buckle 22 evenly distributed is on the outer wall of flexible pipe 2, four second buckle 23 is also evenly distributed on the outer wall of flexible pipe 2.
And a fastening piece 24 is arranged at one end of the telescopic circular tube 2 far away from the second stopper 21. When the cable 4 to be connected is installed in the telescopic circular tube 2, the fastening piece 24 is used for fastening the telescopic circular tube 2 and the cable 4 together, so that the cable 4 is prevented from being separated from the telescopic circular tube 2, and safety accidents are caused.
One end of the first round tube 11 away from the first stopper 13 is provided with a connecting piece 111; the connecting piece 111 is fixedly connected with one end of the second round pipe 12. The connecting member 111 is circular, and has an outer circumference fixedly connected to the first circular tube 11 and an inner circumference fixedly connected to the second circular tube 12. By providing the connecting member 111, a certain gap is formed between the first circular tube 11 and the second circular tube 12. The active cannula 1 further comprises a spring 14; the spring 14 is located inside the first circular tube 11 and is sleeved outside the second circular tube 12, one end of the spring 14 abuts against the connecting piece 111, and the other end of the spring 14 abuts against the second stopper 21.
In some embodiments, a protrusion 112 is disposed on an end of the first circular tube 11 away from the first stopper 13; the protrusion 112 is circular, and the inner circumference is fixedly connected with the outer wall of the first circular tube 11. The device further comprises a protective cover 3; the protective cover 3 is provided with a groove 31, and the groove 31 is matched with the protrusion 112. When the movable sleeve 1 is not used, the protective cover 3 can be covered on one side of the first circular tube 11 far away from the first stopper 13 to protect the movable sleeve 1.
During the use, fig. 8 is an installation schematic diagram of a telescopic sleeve safety device for electric power wire cable head in the embodiment of the present application, fig. 9 is another installation schematic diagram of a telescopic sleeve safety device for electric power wire cable head in the embodiment of the present application, refer to fig. 8 and fig. 9, take off visor 3, will the device is installed on cable 4, makes cable 4 run through telescopic circular tube 2, when cable core 5 gets into completely behind the movable sleeve 1, screws the screw on the fastener 24, makes the device be in the same place with cable 4 fixed mounting.
The telescopic circular tube 2 is rotated, so that the first buckle 22 and the second buckle 23 are aligned to the position of the notch on the first stopper 13, the telescopic circular tube 2 is pushed towards the direction inside the first circular tube 11, after the second buckle 23 moves to the inside of the first circular tube 11, the telescopic circular tube 2 is rotated, so that the second buckle 23 is abutted to the first stopper 13 and clamped inside the first circular tube 11, and the first circular tube 11 is fixed outside the telescopic circular tube 2. At this time, due to the advance of the telescopic circular tube 2, the cable core 5 penetrates through the first circular tube 11 and the second circular tube 12, and then leaks out from the end of the second circular tube 12 connected with the first circular tube 11, and then the cable core 5 is inserted into the terminal 6, and the mounting screw 61 is screwed, so that the cable core 5 is fixed on the terminal 6. After the installation is accomplished, rotatory flexible pipe 2 once more, deviate from second buckle 23 from first pipe 11, because connecting terminal 6 this moment, first buckle 22 still is located inside first pipe 11, according to the naked degree of striking colour between first buckle 22 and the second buckle 23, can judge the condition of being connected of cable core 5 and terminal 6.
In addition, when the terminal 6 is mounted, the first catch 22 and the second catch 23 can be aligned with the notch of the first stopper 13 by rotating the telescopic circular tube 2, the telescopic circular tube 2 is pushed toward the inside of the first circular tube 11, the cable core 5 is directly aligned with the terminal 6 to be mounted, the terminal 6 is pushed, and the mounting screw 61 is screwed, so that the terminal 6 can be mounted on the cable 4.
After the cable 4 is connected with the terminal 6, the telescopic circular tube 2 is loosened, the second stopper 21 is pushed to move towards the first stopper 13 under the action of the elastic force of the spring 14, the telescopic circular tube 2 is pushed out, the cable 4 is driven to move, the cable core 5 is insulated from the outside, and potential safety hazards caused by contact of operating personnel and the exposed part of the live cable 4 are effectively avoided.
When the terminal 6 is detached or loosened and falls off, under the action of the elastic force of the spring 14, the first buckle 22 is popped out of the first round tube 11, the part between the first buckle 22 and the second buckle 23 is completely popped out, the part with a striking color is completely displayed, the loosening and falling of the terminal 6 can be judged, the cable 4 at the loosening part of the terminal 6 can be quickly positioned, and the efficiency of troubleshooting is improved. Under the effect of spring 14, although first buckle 22 and second buckle 23 are all popped out first pipe 11, nevertheless because the tip of flexible pipe 2 is provided with second fender piece 21, second fender piece 21 is blockked by first fender piece 13, can not popped out first pipe 11, that is to say, how telescopic motion of flexible pipe 2 can not break away from movable sleeve 1, effectively avoids the operating personnel to contact the exposed part of electrified cable 4 and causes the potential safety hazard.
According to the technical scheme, the safety protection device for the cable head telescopic sleeve of the electric wire for the electric power comprises a movable sleeve 1 and a telescopic circular tube 2 which are sleeved with each other; the movable sleeve 1 comprises a first round tube 11, a second round tube 12 and a first stopper 13; the second round tube 12 is positioned in the first round tube 11, one end of the first round tube 11 is connected with one end of the second round tube 12, and the other end of the first round tube 11 is fixedly connected with the first stopper 13; one end of the telescopic circular tube 2, which is positioned in the movable sleeve 1, is provided with a second stopper 21, and the second stopper 21 is positioned in the movable sleeve 1; be provided with first buckle 22 and second buckle 23 on the flexible pipe 2, first buckle 22 and second buckle 23 are the wedge. The device is convenient to disassemble and assemble and small in occupied space, after the terminal is loosened, the movable sleeve is automatically popped out, the movable sleeve can be automatically insulated and isolated from the electrified part of the metal and is insulated from the outside, the time of the insulation and isolation process is extremely short, and personnel are prevented from electric shock. The device need not to dismantle once the installation, and convenient to use can use for a long time with electricity, and operation process is convenient, can not cause personnel to electrocute among the operation process, also can not cause cable short circuit or ground connection to need not to do insulating parcel among the cable maintenance process, operation maintenance efficiency is high. The problems that at present, live cables are easily subjected to electric shock of personnel and short circuit or grounding of a cable loop in the disconnecting and connecting working process are solved, and the efficiency of opening a secondary loop of equipment and searching equipment device faults caused by loosening of terminal wiring is effectively improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the application, and advantages thereof, it will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The detailed description provided above is only a few examples under the general concept of the present application, and does not constitute a limitation to the scope of the present application. Any other embodiments that can be extended by the solution according to the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (5)
1. A safety protection device for a cable head telescopic sleeve of an electric wire for electric power is characterized by comprising a movable sleeve (1) and a telescopic circular tube (2) which are mutually sleeved;
the movable sleeve (1) comprises a first circular tube (11), a second circular tube (12), a first stopper (13) and a spring (14);
the second round pipe (12) is positioned in the first round pipe (11), one end of the first round pipe (11) is connected with one end of the second round pipe (12), the other end of the first round pipe (11) is fixedly connected with the first stopper (13), and one end, far away from the first stopper (13), of the first round pipe (11) is provided with a connecting piece (111); the connecting piece (111) is fixedly connected with one end of the second circular tube (12);
one end, located in the movable sleeve (1), of the telescopic circular tube (2) is provided with a second blocking piece (21), the second blocking piece (21) is located in the movable sleeve (1), one end of the spring (14) abuts against the connecting piece (111), and the other end of the spring (14) abuts against the second blocking piece (21);
the telescopic circular tube (2) is provided with a first buckle (22) and a second buckle (23), the first buckle (22) and the second buckle (23) are both wedge-shaped, and striking colors are painted between the first buckle (22) and the second buckle (23).
2. The safety protection device for the cable head telescopic sleeve of the electric wire for the electric power as claimed in claim 1, wherein a protrusion (112) is arranged at one end of the first circular tube (11) far away from the first stopper (13);
the bulge (112) is positioned on the outer wall of the first round pipe (11).
3. The safety device of claim 2, further comprising a protective cover (3);
a groove (31) is formed in the protective cover (3), and the groove (31) is matched with the protrusion (112).
4. The safety device of the cable head telescopic sleeve for the electric power wire according to claim 1, characterized in that a fastener (24) is arranged at one end of the telescopic circular tube (2) far away from the second stopper (21).
5. The safety device for the telescopic sleeve of the cable head of the electric wire for electric power of claim 1, wherein the number of the first buckle (22) and the second buckle (23) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347936.3A CN112510390B (en) | 2020-11-26 | 2020-11-26 | Electric power wire cable head telescopic sleeve safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347936.3A CN112510390B (en) | 2020-11-26 | 2020-11-26 | Electric power wire cable head telescopic sleeve safety device |
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| CN112510390A CN112510390A (en) | 2021-03-16 |
| CN112510390B true CN112510390B (en) | 2022-11-04 |
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| CN202011347936.3A Active CN112510390B (en) | 2020-11-26 | 2020-11-26 | Electric power wire cable head telescopic sleeve safety device |
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| CN113949012B (en) * | 2021-10-14 | 2023-08-18 | 广东电网有限责任公司 | Automatic wire isolation fixing device |
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| CN206908204U (en) * | 2017-05-24 | 2018-01-19 | 陕西永诺电力科技有限公司 | A kind of livewire work isolating and protecting device |
| CN110350328A (en) * | 2018-04-04 | 2019-10-18 | 广东电网有限责任公司 | A kind of secondary circuit tie jumper |
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| CN2773964Y (en) * | 2005-03-10 | 2006-04-19 | 浙江德力西电器股份有限公司 | Thermal-releae fault indicating mechanism of surge protector |
| US7909633B1 (en) * | 2009-09-15 | 2011-03-22 | Fisher-Rosemount Systems, Inc. | Wire connection apparatus |
| CN106691105A (en) * | 2016-11-18 | 2017-05-24 | 光明乳业股份有限公司 | Bendable telescopic pipe |
| CN206696367U (en) * | 2017-05-11 | 2017-12-01 | 广东绿禾电气科技有限公司 | A kind of overhead transmission line accident indicator |
| CN207283137U (en) * | 2017-10-25 | 2018-04-27 | 云南电网有限责任公司电力科学研究院 | A kind of secondary connection casing with electroshock-proof function |
| CN207801439U (en) * | 2018-02-11 | 2018-08-31 | 浙江中新电力发展集团有限公司萧山科技分公司 | One kind changing table protection against electric shock terminal |
| CN209119789U (en) * | 2018-11-16 | 2019-07-16 | 铜山华润电力有限公司 | One kind is exempted to power off cable quick-connects head |
| CN209046001U (en) * | 2018-12-06 | 2019-06-28 | 中铁建电气化局集团南方工程有限公司 | A kind of secondary connection forming setting tool |
| CN110416790A (en) * | 2019-08-09 | 2019-11-05 | 江苏正恺电子科技有限公司 | A kind of elongated degree spring needle conductor of elasticity activity and its forming method with concave inward structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206908204U (en) * | 2017-05-24 | 2018-01-19 | 陕西永诺电力科技有限公司 | A kind of livewire work isolating and protecting device |
| CN110350328A (en) * | 2018-04-04 | 2019-10-18 | 广东电网有限责任公司 | A kind of secondary circuit tie jumper |
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