CN110890723A - Expansion device for intermediate joint of cable accessory - Google Patents
Expansion device for intermediate joint of cable accessory Download PDFInfo
- Publication number
- CN110890723A CN110890723A CN201911329573.8A CN201911329573A CN110890723A CN 110890723 A CN110890723 A CN 110890723A CN 201911329573 A CN201911329573 A CN 201911329573A CN 110890723 A CN110890723 A CN 110890723A
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- Prior art keywords
- guide head
- hole
- sleeve
- intermediate joint
- expansion device
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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
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a 110KV cable accessory intermediate connector expansion device, wherein a fixing plate, a guide head, a sleeve and a clamp are respectively arranged at two ends of an intermediate connector main body; the guide head is of a cylindrical structure, the sleeve is sleeved outside the guide head, one end of part of the sleeve and one end of the circular truncated cone-shaped structure of the guide head are inserted into the middle joint body, two annular convex strips are arranged on the outer wall of the sleeve, and an annular groove is formed by the two annular convex strips; two splint press from both sides in the annular groove, all are equipped with a through-hole more than two on two anchor clamps, and T style of calligraphy connecting rod passes a through-hole at intermediate head main part both ends and connects two anchor clamps, and T style of calligraphy connecting rod includes horizontal pole and montant, and the horizontal pole card is in a through-hole department of intermediate head main part one end, and the one end department that the horizontal pole was kept away from to the montant is equipped with a plurality of through-holes No. two, and the inserted bar inserts in one of them through-hole No. two. The expansion mode of the invention is mild, and the middle joint is not easy to be damaged.
Description
Technical Field
The invention relates to the field of electric power, in particular to a 110KV cable accessory intermediate joint expansion device.
Background
The 110KV cable accessory has the characteristics of small volume, convenient operation, few product specifications and the like. Before installation and use, the 110KV cable accessory is in a high-tension state, and the cable accessory is easy to generate problems of permanent deformation or elastic relaxation and the like after being in the high-tension state for a long time. Therefore, the on-site expansion method is selected for the 110kV and above 110kV cable accessories which are required to be higher, and the expansion method is generally selected to be completed before the factory shipment for the 35kV and below cable accessories which are required to be lower.
At present, a straight pushing method is mainly adopted for mounting the intermediate joint main body for the high-voltage grade cable: after the insulating surface of the cable is processed, the intermediate connector body is sleeved into the long end of the cable through a pulling and installing tool, the cable is pulled to a proper position, the conductor is connected, the shielding cover is installed, and finally the cable intermediate connector body is pulled to a final position to complete installation of the intermediate connector body.
The key of the installation method is an auxiliary tool, because the intermediate joint of the high-voltage cable is installed in an interference manner, the size of the main body of the intermediate joint is large and heavy, and the main body is difficult to pull to a marked position by the conventional pulling and installing tool; in addition, the inside of the main body is easy to wear and scratch in the pulling process, and accident potential is easy to cause.
Disclosure of Invention
The invention aims to provide a 110KV cable accessory intermediate joint expansion device.
In order to achieve the purpose, the technical scheme of the invention is as follows: a110 KV cable accessory intermediate joint expansion device is characterized in that a fixing plate, a guide head, a sleeve and a clamp are respectively arranged at two ends of an intermediate joint main body; the guide head is of a cylindrical structure, one end of the guide head is provided with a convex block, the other end of the guide head is of a round table-shaped structure, the maximum diameter of the guide head is larger than the inner diameter of the middle connector main body, and the minimum diameter of the guide head is smaller than the inner diameter of the middle connector main body; one side of the fixing plate is provided with a groove for inserting the lug; the sleeve is sleeved outside the guide head, the diameter of the sleeve is slightly larger than that of the guide head, a gap exists between the end part of the sleeve positioned at the circular truncated cone-shaped structure of the guide head and the circular truncated cone-shaped structure of the guide head, one end of part of the sleeve and one end of the circular truncated cone-shaped structure of the guide head are inserted into the middle joint main body, two annular convex strips are arranged on the outer wall of the sleeve positioned outside the middle joint main body, and an annular groove is formed by the; the anchor clamps include two splint, be equipped with semi-circular notch on the splint, two splint connect the round hole that forms one and sleeve pipe external diameter adaptation, two splint press from both sides in the annular groove, all be equipped with a through-hole more than two on two anchor clamps, a through-hole is arranged along the round hole is equidistant, T style of calligraphy connecting rod passes a through-hole at intermediate joint main part both ends and connects two anchor clamps, T style of calligraphy connecting rod includes horizontal pole and montant, the horizontal pole card is in the through-hole department of one of intermediate joint main part one end, the one end department that the horizontal pole was kept away from to the montant is equipped with a plurality of through-holes No. two, the inserted bar inserts one of them through-hole No. two.
Furthermore, a third through hole is formed in the groove of the fixing plate, a threaded hole corresponding to the third through hole is formed in the guide head, and the fixing plate is connected with the guide head through a screw. The fixing plate and the guide head can be movably fixed if needed.
Further, the sleeve is composed of two semicircular tubes. The operation is convenient, and the sleeve is easier to be sleeved on the outer wall of the guide head.
Furthermore, the two clamping plates of the clamp are connected through screws and nuts.
Further, the second through holes are arranged at equal intervals along the length direction of the vertical rod. The position of the inserted rod inserted into the second through hole can be adjusted according to the length of the middle joint body.
Further, there are two through holes.
The invention has the beneficial effects that:
1. the expansion mode of the invention is mild, the middle joint is not easy to be damaged, and the construction quality is good; large-scale mechanical equipment is not needed, the used device has small volume and simple structure, is easy to disassemble and assemble, and is convenient to carry and transport; the installation and use mode is simple, and the installation efficiency is high.
2. The fixing plate and the guide head are arranged into a split structure, the guide head can be replaced according to different diameters of the middle joint main body without being integrally replaced, the clamp is clamped in the annular groove and can rotate in the annular groove, and the installation is more flexible and convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the jig.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: the expansion device for the intermediate joint of the 110KV cable accessory is characterized in that a fixing plate 2, a guide head 3, a sleeve 4 and a clamp 5 are respectively arranged at two ends of an intermediate joint main body 1; the guide head 3 is of a cylindrical structure, one end of the guide head 3 is provided with a convex block 3.1, the other end of the guide head is of a round table structure, the maximum diameter of the guide head 3 is larger than the inner diameter of the middle joint main body 1, and the minimum diameter of the guide head 3 is smaller than the inner diameter of the middle joint main body 1; one side of the fixing plate 2 is provided with a groove 2.1 for inserting the lug 3.1; a groove 2.1 of the fixing plate 2 is provided with a third through hole 2.2, the guide head 3 is provided with a threaded hole 3.2 corresponding to the third through hole 2.2, and the fixing plate 2 is connected with the guide head 3 through a screw. The sleeve 4 is sleeved outside the guide head 3, the diameter of the sleeve 4 is slightly larger than that of the guide head 3, the sleeve 4 is composed of two semicircular pipes, the distance exists between the end part of the sleeve 4, located at the truncated cone-shaped structure of the guide head 3, and the truncated cone-shaped structure of the guide head 3, part of the sleeve 4 and one end of the truncated cone-shaped structure of the guide head 3 are inserted into the middle joint main body 1, two annular convex strips 6 are arranged at the outer wall of the sleeve 4, located outside the middle joint main body 1, and an annular groove 7 is formed by the two annular; anchor clamps 5 include two splint 5.1, two splint 5.1 of anchor clamps 5 pass through screw nut connection, be equipped with semicircular groove mouth 5.2 on the splint 5.1, two splint 5.1 connect and form a round hole 5.3 with the external diameter adaptation of sleeve pipe 4, two splint 5.1 press from both sides in annular groove 7, all be equipped with one number through-hole 8 more than two on two anchor clamps 5, one number through-hole 8 is preferred two, one number through-hole 8 is arranged along round hole 5.3 equidistant, T style of calligraphy connecting rod 9 passes the one number through-hole 8 at intermediate head main part 1 both ends and connects two anchor clamps 5, T style of calligraphy connecting rod 9 includes horizontal pole 9.1 and montant 9.2, horizontal pole 9.1 card is in the one number through-hole 8 department of intermediate head main part 1 one end, montant 9.2 keeps away from one end department of horizontal pole 9.1 and is equipped with a plurality of No. two through-holes 11, No. two through-hole 11 is arranged along the length direction equidistant of montant 9.2, inserted bar 10 inserts one of which No. two through-holes.
When in work: firstly, a fixing plate 2 and a guide head 3 are fixedly connected, a semicircular tube forming sleeve 4 is sleeved outside the guide head 3 by a clamp 5, two guide heads 3 are inserted into two ends of an intermediate joint main body 1, the sleeve 4 is inserted into two ends of the intermediate joint main body 1 along with the guide head 3, two T-shaped connecting rods 9 are respectively inserted into a first through hole 8 of the clamp at two ends, and an inserting rod is inserted into a second through hole 11 to enable the guide head of the intermediate joint main body 1 to complete expansion, after the expansion is completed, the fixing plate 2 and the guide head 3 at two ends are detached, the intermediate joint main body 1 is made to be sleeved into a long end of a cable, the long end of the cable is pulled to a proper position, and finally the sleeve 4 is detached. Fixed plate 2 and direction head 3 set up into the components of a whole that can change direction head 3 according to the different diameters of intermediate joint main part 1, and need not wholly change, and anchor clamps 5 press from both sides in annular groove 7, and anchor clamps 5 can be in 7 internal rotations of annular groove, and is more nimble convenient during the installation.
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (6)
1. A110 KV cable accessory intermediate joint expansion device is characterized in that a fixing plate, a guide head, a sleeve and a clamp are respectively arranged at two ends of an intermediate joint main body; the guide head is of a cylindrical structure, one end of the guide head is provided with a convex block, the other end of the guide head is of a round table-shaped structure, the maximum diameter of the guide head is larger than the inner diameter of the middle connector main body, and the minimum diameter of the guide head is smaller than the inner diameter of the middle connector main body; one side of the fixing plate is provided with a groove for inserting the lug; the sleeve is sleeved outside the guide head, the diameter of the sleeve is slightly larger than that of the guide head, a gap exists between the end part of the sleeve positioned at the circular truncated cone-shaped structure of the guide head and the circular truncated cone-shaped structure of the guide head, one end of part of the sleeve and one end of the circular truncated cone-shaped structure of the guide head are inserted into the middle joint main body, two annular convex strips are arranged on the outer wall of the sleeve positioned outside the middle joint main body, and an annular groove is formed by the; the anchor clamps include two splint, be equipped with semi-circular notch on the splint, two splint connect the round hole that forms one and sleeve pipe external diameter adaptation, two splint press from both sides in the annular groove, all be equipped with a through-hole more than two on two anchor clamps, a through-hole is arranged along the round hole is equidistant, T style of calligraphy connecting rod passes a through-hole at intermediate joint main part both ends and connects two anchor clamps, T style of calligraphy connecting rod includes horizontal pole and montant, the horizontal pole card is in the through-hole department of one of intermediate joint main part one end, the one end department that the horizontal pole was kept away from to the montant is equipped with a plurality of through-holes No. two, the inserted bar inserts one of them through-hole No. two.
2. The 110KV cable accessory intermediate joint expansion device according to claim 1, wherein a groove of the fixing plate is provided with a third through hole, the guide head is provided with a threaded hole corresponding to the third through hole, and the fixing plate and the guide head are connected by a screw.
3. The 110KV cable accessory intermediate head expansion device of claim 1, wherein the sleeve is composed of two semicircular tubes.
4. The 110KV cable accessory intermediate joint expansion device of claim 1, wherein the two clamping plates of the clamp are connected by screws and nuts.
5. The 110KV cable accessory intermediate joint expansion device according to claim 1, wherein the second through holes are arranged at equal intervals along the length direction of the vertical rod.
6. The 110KV cable accessory intermediate joint expansion device of claim 1, wherein there are two of the first-number through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329573.8A CN110890723A (en) | 2019-12-20 | 2019-12-20 | Expansion device for intermediate joint of cable accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329573.8A CN110890723A (en) | 2019-12-20 | 2019-12-20 | Expansion device for intermediate joint of cable accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110890723A true CN110890723A (en) | 2020-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911329573.8A Pending CN110890723A (en) | 2019-12-20 | 2019-12-20 | Expansion device for intermediate joint of cable accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110890723A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917047A (en) * | 2020-08-16 | 2020-11-10 | 赵国留 | Power cable engineering installation and construction protection mechanism |
| CN113594776A (en) * | 2021-08-06 | 2021-11-02 | 保定正开电缆附件有限公司 | Expansion device for silicone rubber cable intermediate joint |
| WO2022001270A1 (en) * | 2020-07-03 | 2022-01-06 | 长缆电工科技股份有限公司 | Installation method and expansion device for cable intermediate joint |
-
2019
- 2019-12-20 CN CN201911329573.8A patent/CN110890723A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001270A1 (en) * | 2020-07-03 | 2022-01-06 | 长缆电工科技股份有限公司 | Installation method and expansion device for cable intermediate joint |
| CN111917047A (en) * | 2020-08-16 | 2020-11-10 | 赵国留 | Power cable engineering installation and construction protection mechanism |
| CN113594776A (en) * | 2021-08-06 | 2021-11-02 | 保定正开电缆附件有限公司 | Expansion device for silicone rubber cable intermediate joint |
| CN113594776B (en) * | 2021-08-06 | 2023-11-24 | 保定正开电缆附件有限公司 | Expansion device for middle joint of silicone rubber cable |
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