CN114156672B - Expansion type plug-in extension rod for cable connector - Google Patents
Expansion type plug-in extension rod for cable connector Download PDFInfo
- Publication number
- CN114156672B CN114156672B CN202111151668.2A CN202111151668A CN114156672B CN 114156672 B CN114156672 B CN 114156672B CN 202111151668 A CN202111151668 A CN 202111151668A CN 114156672 B CN114156672 B CN 114156672B
- Authority
- CN
- China
- Prior art keywords
- extension rod
- joint
- cable
- skin layer
- rod body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004519 grease Substances 0.000 abstract description 7
- 229920001296 polysiloxane Polymers 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
Abstract
The invention discloses an expansion type pull-plug extension rod for a cable connector, and belongs to the technical field of cables. The technical proposal is as follows: the cable boot comprises an extension rod body, wherein the head of the extension rod body is provided with a joint, the joint is formed by a circle of copper-aluminum alloy strips, the joint is narrow at two ends and wide in the middle, and the width of the part of the joint, which is wider in the middle, is adaptive to the inner space of the cable boot; the extension rod body is further provided with an expansion rubber skin layer, the expansion rubber skin layer is provided with an air inlet valve, and the expansion rubber skin layer is connected with an inflatable air bag through the air inlet valve. The invention solves the problems that the existing bolt type extension rod generates scraps to pollute the internal environment of a cable boot, the hands are easy to be stained with silicone grease, the operation is time-consuming and labor-consuming, the power failure time is prolonged, and the like in the operation process.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an expansion type pull-plug extension rod for a cable connector.
Background
Due to the development of modern society and cities, the demand for high voltage power cables is increasing. The cable is easy to be influenced by factors such as long-term expiration load operation, damp, cable manufacturing process level, environmental corrosion and the like in the use process, so that problems such as faults and short circuits occur, and in recent years, the probability of occurrence of the faults and the short circuits of the cable is greatly increased.
The withstand voltage test is a test method aiming at finding defects and faults of the cable. In the traditional withstand voltage test, the bolt type extension rod is required to be adopted to ensure the safety distance, and when the device is used, the extension rod is required to be screwed into the cable shoe along the threads, but because the threads inside the cable shoe are at the position which is relatively inside, the extension rod can only contact the threads inside the cable shoe after extending into the cable shoe for a certain distance, and then the extension rod is screwed into the cable shoe, so that chips can be generated when the threads on the extension rod are dislocated with the threads inside the cable shoe to screw, the internal environment of the cable shoe can be polluted, and the test is influenced. Meanwhile, silicone grease is smeared in the cable boot in advance to serve as a lubricant, so that the extension rod can be screwed in conveniently, and the hands are fully stained with the silicone grease in the process of holding the extension rod and screwing in the cable boot. In addition, because the operational environment is narrow, the operation of bolt type extension stick wastes time and energy, makes the power failure time extension, does not satisfy the requirement that improves the power supply reliability.
Disclosure of Invention
The invention aims to solve the technical problems that: the cable joint expansion type plug extension rod solves the problems that chips generated in the operation process of the existing bolt type extension rod pollute the internal environment of a cable boot, hands are easy to be stained with silicone grease, the operation is time-consuming and labor-consuming, the power failure time is prolonged and the like.
The technical scheme of the invention is as follows:
the expansion type plug extension rod for the cable connector comprises an extension rod body, wherein the head of the extension rod body is provided with a connector, the connector is formed by a circle of copper-aluminum alloy strips, the connector is narrow at two ends and wide in the middle, and the width of the wider part of the connector is matched with the inner space of a cable boot; the extension rod body is further provided with an expansion rubber skin layer, the expansion rubber skin layer is provided with an air inlet valve, and the expansion rubber skin layer is connected with an inflatable air bag through the air inlet valve.
Compared with the prior art, the invention has the following beneficial effects:
the invention solves the problems that the existing bolt type extension rod generates scraps to pollute the internal environment of a cable boot, the hands are easy to be stained with silicone grease, the operation is time-consuming and labor-consuming, the power failure time is prolonged, and the like in the operation process. The extension rod is free of bolts, convenient to install and detach, capable of greatly shortening loading and unloading time, time-saving and labor-saving, free of silicone grease on hands of operators, suitable for narrow working environments, and capable of simplifying operation flow and improving working efficiency compared with the traditional bolt-type extension rod, so that the safety distance of a pressure-proof test is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, the rod body is 1-prolonged, the joint is 2-connected, the rubber skin is 3-expanded, the air inlet valve is 4-and the air bag is 5-inflated.
Detailed Description
Example 1
As shown in fig. 1, the embodiment provides an expansion type plug extension rod for a cable connector, which comprises an extension rod body 1, wherein the head of the extension rod body 1 is provided with a connector 2, the connector 2 is formed by a circle of copper-aluminum alloy strips, the connector 2 is in a shape similar to a shuttle shape with narrow ends and wide middle, and the width of the wider middle part of the connector 2 is matched with the inner space of a cable boot; wherein each copper-aluminum alloy strand is formed by braiding a plurality of copper-aluminum alloy wires into strands; the extension rod body 1 is further provided with an expansion rubber skin layer 3, the expansion rubber skin layer 3 is provided with an air inlet valve 4, and the expansion rubber skin layer 3 is connected with an inflatable air bag 5 through the air inlet valve 4. The air inlet valve 4 and the inflatable air bag 5 are all existing products and are commercially available.
In the cable withstand voltage test process, the joint 2 of the extension rod is inserted into the cable boot, and after the part with the narrow front end enters the cable boot, the part with the wider middle can touch the inner wall of the cable boot and cause the stress to deform backwards, so that the joint 2 can be finally extruded and fixed in the cable boot. Meanwhile, a part of the front end of the expansion rubber layer 3 on the extension rod body 1 also enters the cable boot, at the moment, the hand-held air inflation bag 5 fills air into the expansion rubber layer 3 through the air inlet valve 4 to expand the expansion rubber layer, and the part of the air inflation bag entering the inside of the cable boot is closely contacted with the inner wall of the cable boot, so that the extension rod can be further clamped on the cable boot. After the test is finished, the air in the expansion rubber layer 3 is discharged, and the extension rod is directly pulled out from the cable boot.
The extension rod provided by the invention is convenient to operate, and the joint degree of the extension rod and the extension rod is standard and compact, so that the safety distance of a pressure test is ensured, and compared with the traditional bolt-type extension rod, the operation flow can be simplified, and the working efficiency is improved. The extension rod has no bolt, is convenient to install and detach, can greatly shorten the loading and unloading time, saves time and labor, does not lead the hands of operators to be stained with silicone grease, and is suitable for narrow working environments.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. The expansion type plug-in extension rod of the cable connector comprises an extension rod body (1), and is characterized in that: the head of the extension rod body (1) is provided with a joint (2), the joint (2) is formed by a circle of copper-aluminum alloy strips, the shape of the joint (2) is narrow at two ends and wide in the middle, and the width of the part of the joint (2) with the wider middle is adapted to the inner space of the cable boot; the extension rod body (1) is further provided with an expansion rubber skin layer (3), the expansion rubber skin layer (3) is provided with an air inlet valve (4), and the expansion rubber skin layer (3) is connected with an inflatable air bag (5) through the air inlet valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151668.2A CN114156672B (en) | 2021-09-29 | 2021-09-29 | Expansion type plug-in extension rod for cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151668.2A CN114156672B (en) | 2021-09-29 | 2021-09-29 | Expansion type plug-in extension rod for cable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114156672A CN114156672A (en) | 2022-03-08 |
| CN114156672B true CN114156672B (en) | 2024-02-23 |
Family
ID=80462260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151668.2A Active CN114156672B (en) | 2021-09-29 | 2021-09-29 | Expansion type plug-in extension rod for cable connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114156672B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424861A (en) * | 1981-10-08 | 1984-01-10 | Halliburton Company | Inflatable anchor element and packer employing same |
| CN205283025U (en) * | 2015-11-23 | 2016-06-01 | 山西晋开成套设备有限公司 | Easily lock cable protection pipe |
| CN110007179A (en) * | 2018-10-25 | 2019-07-12 | 童志勇 | A kind of cable intermediate joint electric performance test tooling and method |
-
2021
- 2021-09-29 CN CN202111151668.2A patent/CN114156672B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424861A (en) * | 1981-10-08 | 1984-01-10 | Halliburton Company | Inflatable anchor element and packer employing same |
| CN205283025U (en) * | 2015-11-23 | 2016-06-01 | 山西晋开成套设备有限公司 | Easily lock cable protection pipe |
| CN110007179A (en) * | 2018-10-25 | 2019-07-12 | 童志勇 | A kind of cable intermediate joint electric performance test tooling and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114156672A (en) | 2022-03-08 |
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| GR01 | Patent grant |