CN108761147B - Cable intermediate head test device - Google Patents
Cable intermediate head test device Download PDFInfo
- Publication number
- CN108761147B CN108761147B CN201810768438.2A CN201810768438A CN108761147B CN 108761147 B CN108761147 B CN 108761147B CN 201810768438 A CN201810768438 A CN 201810768438A CN 108761147 B CN108761147 B CN 108761147B
- Authority
- CN
- China
- Prior art keywords
- cable
- conductor
- connector
- intermediate joint
- fixing ring
- 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.)
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- 239000004020 conductor Substances 0.000 claims abstract description 93
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 abstract description 18
- 238000011056 performance test Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- 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
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Air Bags (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a cable intermediate joint test device, which comprises a quick connecting device and an inflating device; the quick connection device comprises a conductor fixing ring; the first connecting head is provided with a first assembling end and a second assembling end at two opposite ends respectively; the two opposite ends of the second connector are respectively provided with a third assembly end and a fourth assembly end; the air charging device comprises an assembling cavity and an air inlet; the conductor fixing ring clamps the conductor at the end part of the cable and is respectively assembled and connected with the second assembling end and the fourth assembling end, and the first assembling end and the third assembling end are in fit connection in the middle joint; external air enters the gap of the cable end conductor through the fitting cavity through the air inlet and fills the interior of the cable intermediate joint. The cable intermediate joint test device provided by the invention can realize quick installation, avoid repeated disassembly, reduce the installation time and improve the test efficiency while meeting the electric performance test of the cable intermediate joint; the structure is simplified, and the labor and assembly cost is reduced.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to a cable intermediate joint test device.
Background
Along with the rapid development of power grid construction, the demand of the middle joint of the high-voltage power cable is rapidly increased while the high-voltage cable circuit is rapidly increased, and according to the requirements of power grid companies and relevant detection standards, each joint is subjected to an electrical performance test when leaving the factory, and at the present, production enterprises all adopt a method for directly installing the joint on the cable by using a field installation process to carry out the test.
The conventional cable intermediate joint test method adopts a crimping method, as shown in fig. 8, which is a schematic diagram of an assembly structure of the cable intermediate joint test method in the prior art, a connecting sleeve 81 is used between two cable end conductors 82, then the connecting tubes 81 are pressed together by a molding press, then the high-voltage cables are connected by a shielding cover 83, and finally the high-voltage cables are connected in an adapting manner in the middle joint 84. The mounting method needs to be disassembled after the test and then is mounted again for the test, so that not only is the longer time consumed, but also the joint is easy to damage, and the cost of the test is greatly increased. Meanwhile, the cable intermediate joint test device also has the problem of complicated structure, and long and laborious installation is performed.
Disclosure of Invention
The invention aims to solve the technical problems of providing the cable intermediate joint test device which can realize quick installation, avoid repeated disassembly, reduce the installation time and improve the test efficiency while meeting the electric performance test of the cable intermediate joint; the structure is simplified, and the labor and assembly cost is reduced.
In order to solve the above technical problems, an embodiment of the present invention provides a cable intermediate joint test device for performing quick installation and disassembly in a batch test of cable intermediate joints, the cable intermediate joint test device including: a quick connect device and an inflation device; the quick connect device includes: the cable fixing device comprises a conductor fixing ring which can be adaptively fastened on a conductor at the end of a cable, wherein the conductor at the end of the cable is a wire core at the end of the cable, and bolt fixing holes for fastening the conductor at the end of the cable in the middle aperture of the conductor fixing ring are respectively formed in two opposite side surfaces of the conductor fixing ring; the first connecting head is provided with a first assembling end and a second assembling end which can be matched and connected with the conductor fixing ring at the opposite ends respectively; the two opposite ends of the second connector are respectively provided with a third assembly end which can be connected with the first assembly end in an adaptive manner and a fourth assembly end which can be connected with the conductor fixing ring in an adaptive manner; the inflator includes: the assembly cavity is arranged at one end part of the air charging device and used for connecting a conductor at the end part of the cable, and the air inlet is arranged at the other end part opposite to the air charging device and is in conductive connection with the assembly cavity; wherein: the conductor fixing ring clamps the conductor at the end part of the cable and is respectively assembled and connected with the second assembling end of the first connector and the fourth assembling end of the second connector, and the first assembling end of the first connector and the third assembling end of the second connector are in fit connection in the middle connector; external air enters a gap of a cable end conductor through the air inlet through the assembly cavity, and then the gap of the cable end conductor is filled into the middle joint, and an air film is formed between the middle joint and the quick connecting device, so that the friction resistance of installation is reduced, and a middle joint test is performed.
Wherein, the opposite two sides of the air charging device are respectively provided with bolt holes for fastening the conductors at the end parts of the cable in the assembling cavity.
The inside of the assembly cavity is provided with a sealing ring for sealing a conductor at the end part of the cable, and the sealing ring is arranged in a ring groove formed in the inner wall of the assembly cavity.
The conductor fixing ring is of a hollow cylindrical structure with openings at two ends, and the aperture in the middle of the conductor fixing ring is matched with the diameter of the conductor at the end of the cable.
The periphery of the conductor fixing ring is provided with a screw thread used for assembling and connecting the conductor fixing ring in the second assembling end of the first connector or the fourth assembling end of the second connector.
The second assembly end of the first connector and the fourth assembly end of the second connector are threaded holes capable of being fastened and connected with a conductor fixing ring respectively.
The first assembly end of the first connector is a slot.
The slot is a structure with the aperture size gradually reduced from the end side of the first assembly end to the inside of the slot.
The third assembly end of the second connector is a connecting column matched with the slot.
The cable intermediate joint test device has the following beneficial effects:
The first conductor fixing ring clamps the conductor at the end part of the cable and is respectively assembled and connected with the second assembling end of the first connector and the fourth assembling end of the second connector, and the first assembling end of the first connector and the third assembling end of the second connector are in fit connection in the middle connector; in order to carry out intermediate head test, when satisfying cable intermediate head electrical property test, can realize quick installation, avoid repeatedly dismantling and reduce installation time, improve test efficiency.
And second, outside air enters a gap of a conductor at the end part of the cable through the assembling cavity through the air inlet and fills the inside of the middle joint of the cable, so that an air film is formed between the middle joint and the quick connecting device, the friction resistance of installation is reduced, and the test efficiency of the middle joint is improved.
Thirdly, the structure is simple, certain safety and reliability are achieved, and the cost is easy to control.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conductor fixing ring structure of a quick connection device of a cable intermediate joint test device according to an embodiment of the invention.
Fig. 2 is a schematic structural view of a first connector of a quick connector of a cable intermediate connector test device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second connector of the quick connector of the cable intermediate connector test device according to the embodiment of the invention.
FIG. 4 is a schematic structural view of an inflator device of a cable intermediate joint test device according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of an assembled second connector of a cable intermediate connector test device according to an embodiment of the invention.
FIG. 6 is a schematic cross-sectional view of an assembled first connector and inflator device of a cable intermediate connector test device according to an embodiment of the present invention.
Fig. 7 is a schematic view of an assembled section of a cable intermediate joint test device according to an embodiment of the invention.
Fig. 8 is a schematic diagram of an assembly structure of a cable intermediate joint test method in the prior art.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, a first embodiment of the cable intermediate joint test device according to the present invention is shown.
The cable intermediate head test device in this embodiment includes: quick connect device 1 and aerating device 2, quick connect device 1 are arranged in implementing quick installation and dismantlement in cable intermediate head batch test, avoid repeatedly dismantling and reduce installation time, improve test efficiency.
The quick connect device 1 comprises: a conductor-fixing ring 11 capable of being fitted and fastened on the cable-end conductor a; a first connector 12, wherein a first assembling end 121 and a second assembling end 122 capable of being adapted to connect with the conductor fixing ring 11 are respectively arranged at two opposite ends of the first connector 12; the second connector 13, two opposite ends of the second connector 13 are respectively provided with a third assembling end 131 capable of being connected with the first assembling end 121 in an adapting way and a fourth assembling end 132 capable of being connected with the conductor fixing ring 11 in an adapting way.
The function of the conductor fixing ring 11 is to connect the cable end conductor a, which is the core of the cable end. The conductor fixing ring 11 is a hollow cylindrical structure with openings at two ends, and the aperture 111 in the middle of the conductor fixing ring 11 is matched with the diameter of the conductor A at the end part of the cable.
Preferably, bolt fixing holes 112 are respectively formed on two opposite side surfaces of the conductor fixing ring 11, and the bolt fixing holes 112 are used for fastening the cable end conductor A in the middle aperture of the conductor fixing ring 11. In practice, the cable end conductor a may be inserted into the central aperture of the conductor fixing ring 11, and the bolt is screwed through the bolt fixing hole 112 and presses the cable end conductor a in the central aperture of the conductor fixing ring 11.
Preferably, the outer circumference of the conductor fixing ring 11 is provided with screw threads 113 for fitting it into the second fitting end 122 of the first connector 12 or the fourth fitting end 132 of the second connector 13.
Further, the first connector 12 and the second connector 13 are integrally formed as a cylindrical structure, wherein the second assembling end 122 of the first connector 12 and the fourth assembling end 132 of the second connector 13 are threaded holes capable of being fastened to the conductor fixing ring 11, and the inner diameter of the threaded holes is adapted to the outer diameter of the conductor fixing ring 11, so that the conductor fixing ring 11 can be screwed into the second assembling end 122 and the fourth assembling end 132, respectively.
Further, the first fitting end 121 of the first connector 12 is a slot, and the slot has a structure in which the aperture size is tapered from the end side of the first fitting end 121 to the inside thereof. This facilitates a quick contact connection with the second connector 13.
Further, the third assembling end 131 of the second connector 13 is a connecting post adapted to the slot. Wherein: the mating connection of the first connection head 12 and the second connection head 13 means that the first connection head 12 and the second connection head 13 can be connected in quick contact in the intermediate joint B, wherein: the connecting post of the second connector 13 can be quickly inserted into the slot of the first connector 12 to realize contact connection.
In the quick connector of the cable middle joint test device in this embodiment, when the quick connector is in implementation, the conductor fixing ring 11 clamps the cable end conductor a and respectively fits and connects the second fitting end 122 of the first connector 12 and the fourth fitting end 132 of the second connector 13, and the first fitting end 121 of the first connector 12 and the third fitting end 131 of the second connector 13 are fit and connected inside the middle joint B.
The inflation device 2 is used for filling gas into the middle joint from the gap of the cable end conductor, and a gas film is formed between the middle joint and the quick connecting device, so that the friction resistance of installation is reduced, and the test efficiency of the middle joint test is improved.
The inflator 2 includes: an assembling chamber 21 provided at one end of the inflator 2 for connecting the cable end conductor a, an air inlet 22 provided at the other end opposite to the inflator in conductive connection with the assembling chamber; wherein: external air enters the gap of the cable end conductor a through the fitting chamber 21 through the air inlet 22 and fills the interior of the cable intermediate joint B to perform the intermediate joint test.
Preferably, bolt holes 23 for fastening the cable end conductor a in the fitting chamber 21 are respectively formed on opposite side surfaces of the inflator 2. In practice, the cable end conductor a may be inserted in the fitting cavity 21, and a bolt may be screwed through the bolt hole 23 and pressed against the cable end conductor a in the fitting cavity 21.
Preferably, a sealing ring 24 for sealing the cable end conductor a is arranged in the assembly cavity 21, and the sealing ring 24 is arranged in a ring groove 25 formed in the inner wall of the assembly cavity 21.
When the inflation device of the cable intermediate joint test device in the embodiment is specifically implemented, external air enters the gap of the cable end conductor A through the air inlet 22 via the assembly cavity 21, and then fills the gap of the cable end conductor into the intermediate joint B, so that an air film is formed between the interior of the intermediate joint B and the quick connection device A, thereby reducing the friction resistance of installation and improving the test efficiency of the intermediate joint test.
In the cable intermediate joint test device in this embodiment, first, the cable to be installed in the intermediate joint B is processed according to a certain size, wherein the inflator 2 is installed at one side end of one cable, the conductor fixing ring 11 is installed at the other side, the screw bolt is threaded through the bolt fixing hole 112 and presses the cable end conductor a in the middle aperture of the conductor fixing ring 11 to lock the cable end conductor a, and then the conductor fixing ring 11 is in good contact with the first connector 12 through the screw thread 113. Next, the cable end conductor a of the other cable side end is fitted with the conductor fixing ring 11, the bolt is screwed through the bolt fixing hole 112 and the cable end conductor a in the middle aperture of the conductor fixing ring 11 is pressed against and locked, and then the conductor fixing ring 11 is brought into good contact with the second connector 13 by the screw thread 113. Finally, the first connector 12 and the second connector 13 are connected in the middle connector B, and the installation and the disassembly of the middle connector are rapidly completed by using the inflator 2, so as to perform the middle connector test.
The cable intermediate joint test device has the following beneficial effects:
The first conductor fixing ring clamps the conductor at the end part of the cable and is respectively assembled and connected with the second assembling end of the first connector and the fourth assembling end of the second connector, and the first assembling end of the first connector and the third assembling end of the second connector are in fit connection in the middle connector; in order to carry out intermediate head test, when satisfying cable intermediate head electrical property test, can realize quick installation, avoid repeatedly dismantling and reduce installation time, improve test efficiency.
And second, outside air enters a gap of a conductor at the end part of the cable through the assembling cavity through the air inlet and fills the inside of the middle joint of the cable, so that an air film is formed between the middle joint and the quick connecting device, the friction resistance of installation is reduced, and the test efficiency of the middle joint is improved.
Thirdly, the structure is simple, certain safety and reliability are achieved, and the cost is easy to control.
Claims (9)
1. A cable intermediate joint test device for implementing quick installation and removal in a cable intermediate joint batch test, the cable intermediate joint test device comprising: a quick connect device and an inflation device;
The quick connect device includes: the cable fixing device comprises a conductor fixing ring which can be adaptively fastened on a conductor at the end of a cable, wherein the conductor at the end of the cable is a wire core at the end of the cable, and bolt fixing holes for fastening the conductor at the end of the cable in the middle aperture of the conductor fixing ring are respectively formed in two opposite side surfaces of the conductor fixing ring; the two opposite ends of the first connector are respectively provided with a first assembly end and a second assembly end which can be connected with the conductor fixing ring in an adaptive manner; the two opposite ends of the second connector are respectively provided with a third assembly end capable of being connected with the first assembly end in an adaptive manner and a fourth assembly end capable of being connected with the conductor fixing ring in an adaptive manner;
the inflator device includes: the assembly cavity is arranged at one end part of the air charging device and used for connecting a conductor at the end part of the cable, and the air inlet is arranged at the other end part opposite to the air charging device and is in conductive connection with the assembly cavity; wherein:
the conductor fixing ring clamps a cable end conductor and is respectively assembled and connected with the second assembling end of the first connector and the fourth assembling end of the second connector, and the first assembling end of the first connector and the third assembling end of the second connector are in adaptive connection in the middle connector; external air enters a gap of a cable end conductor through the air inlet through the assembly cavity, and then the gap of the cable end conductor is filled into the cable intermediate joint to form an air film between the interior of the cable intermediate joint and the quick connecting device, so that the friction resistance of installation is reduced, and an intermediate joint test is performed.
2. The cable intermediate joint test device of claim 1, wherein the inflator device is provided with bolt holes on opposite sides thereof for fastening cable end conductors in the assembly chamber.
3. The cable intermediate joint test device according to claim 1, wherein a sealing ring for sealing the conductor at the end of the cable is arranged in the assembly cavity, and the sealing ring is arranged in a ring groove formed in the inner wall of the assembly cavity.
4. The cable intermediate head test device according to claim 1, wherein the conductor fixing ring is a hollow cylindrical structure with openings at two ends, and the aperture in the middle of the conductor fixing ring is adapted to the diameter of the conductor at the end of the cable.
5. The cable intermediate joint test device according to claim 1, wherein an outer periphery of the conductor fixing ring is provided with a screw for fitting and connecting it in the second fitting end of the first connector or the fourth fitting end of the second connector.
6. The cable intermediate joint test device of claim 1, wherein the second fitting end of the first connector and the fourth fitting end of the second connector are threaded bores, respectively, capable of securely connecting the conductor securing ring.
7. The cable intermediate joint test device of claim 1, wherein said first mounting end of said first connector is a socket.
8. The cable intermediate joint testing device of claim 7, wherein said slot is of a configuration in which the bore size tapers inwardly from the end of said first mounting end.
9. The cable intermediate head test apparatus of claim 7 or 8, wherein the third mounting end of the second connector is a post adapted to the socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768438.2A CN108761147B (en) | 2018-07-13 | 2018-07-13 | Cable intermediate head test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768438.2A CN108761147B (en) | 2018-07-13 | 2018-07-13 | Cable intermediate head test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108761147A CN108761147A (en) | 2018-11-06 |
| CN108761147B true CN108761147B (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810768438.2A Active CN108761147B (en) | 2018-07-13 | 2018-07-13 | Cable intermediate head test device |
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| CN (1) | CN108761147B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047404B (en) * | 2021-11-06 | 2023-12-22 | 无锡德刚精工机电设备有限公司 | High-voltage cable accessory intermediate head and GIS's integrated test fixture |
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| Publication number | Publication date |
|---|---|
| CN108761147A (en) | 2018-11-06 |
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