CN201853813U - Wire connection device - Google Patents
Wire connection device Download PDFInfo
- Publication number
- CN201853813U CN201853813U CN2010205606424U CN201020560642U CN201853813U CN 201853813 U CN201853813 U CN 201853813U CN 2010205606424 U CN2010205606424 U CN 2010205606424U CN 201020560642 U CN201020560642 U CN 201020560642U CN 201853813 U CN201853813 U CN 201853813U
- Authority
- CN
- China
- Prior art keywords
- wire
- armor rods
- preformed armor
- tube
- connection
- 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.)
- Expired - Fee Related
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses a wire connection device, and relates to a wire connecting fitting. The defects of the traditional crimping connection tube in operation can be effectively overcome, the current carrying capacity of the connection tube can be enhanced, the resistance and loss of a connection part can be greatly reduced, and simultaneously the connection strength of the connection tube can be enhanced, so that the connection strength is no less than the collapsing strength of a wire, and the installation efficiency is higher. The wire connection device comprises a crimping tube and a pre-stranded wire, wherein the wires are butted by the crimping tube. The wire connection device also comprises a filling pre-stranded wire, wherein the filling pre-stranded wire is wrapped on the surfaces of the roots of the wires towards the orifice of the crimping tube, and the pre-stranded wire is wound and wrapped on the outer surfaces of the filing pre-stranded wire and the crimping tube. A pre-stranded wire structure that double layers of pre-stranded wires are used and a plurality of pre-stranded wires are connected in parallel into a bundle is adopted, and the diameter of the root of the wire close to the crimping connection tube is 'expanded' by the filling pre-stranded wire in an inner layer. Even if the situation of expansion caused by heat and contraction caused by cold frequently occurs, the pre-stranded wire playing a reinforcing role in an outer layer is relatively and uniformly changed, so that the internal stress is not generated, thus the fatigue damage is avoided.
Description
Technical field
The utility model relates to a kind of lead gold utensil that continues, and particularly a kind of preformed lead splicing sleeve strengthens connection device.
Background technology
Using the very huge splicing sleeve of number on the power overhead network, adopting hydraulic pressure or pincers pressure technology, layering continues respectively to the steel core part and the aluminium lamination part of steel reinforced aluminium conductor.Its drawback is: 1. Shi Gong handshaking procedure more complicated, need special crimping apparatus, and effect is installed is subjected to operating personnel's artificial factor to a great extent, easily cause physical damnification (mechanical damage), cause taking place lead strand crack conditions lead; 2. power circuit service life often requires to surpass 30 years, and run duration forms thermal cycle owing to the instability of circuit operating load produces the temperature phenomenon of lifting repeatedly, makes adapting electric voltage increase, thereby has increased line loss; The mechanical strength that continues simultaneously descends, and the safe operation of transmission line is constituted a threat to.
The utility model content
The utility model is at above problem, provide a kind of and can solve the deficiency of aforementioned crimp type splicing sleeve existence in service effectively, both strengthened the current capacity of splicing sleeve, greatly reduce the resistance and the loss at the place that continues again, can also strengthen simultaneously the intensity that continues of splicing sleeve, make its breakdown strength that is not less than lead, and the higher lead connection device of installation effectiveness.
The technical solution of the utility model is: comprise aluminium hydraulic pressed connecting pipe and preformed armor rods, described aluminium hydraulic pressed connecting pipe docks described lead, it also comprises the filling preformed armor rods, described filling preformed armor rods wraps on the root surface of lead towards the aluminium hydraulic pressed connecting pipe mouth of pipe, and described preformed armor rods twines, wraps on the outer surface of described filling preformed armor rods and aluminium hydraulic pressed connecting pipe.
Described preformed armor rods and described filling preformed armor rods are twist.
The described preformed armor rods of 2-5 root is connected as a single entity side by side, and coiling twist again.
The described filling preformed armor rods of 2-5 root is connected as a single entity side by side, and coiling twist again.
Described lead is an aluminium stranded conductor.
Described lead is a steel reinforced aluminium conductor; Also be provided with the splicing sleeve of the described steel core that is used to continue in the described aluminium hydraulic pressed connecting pipe.
Preformed armor rods structure double-deck preformed, many bunchys arranged side by side that the utility model adopts, wherein the filling preformed armor rods of internal layer is the root diameter (RD) " expansions " of lead near aluminium hydraulic pressed connecting pipe, " expansion " extremely with aluminium hydraulic pressed connecting pipe diameter basically identical; Then, again at aluminium hydraulic pressed connecting pipe, fill coiling preformed armor rods on the preformed armor rods.After preformed armor rods is prefabricated into spirality, conduction sand is arranged behind its inner surface additional, to improve electric conductivity; Preformed armor rods adopts the aluminum-alloy wire manufacturing, with convenience and the high conduction performance that utilizes its processing.In order to improve anti-corona ability, special processing also can be carried out in the termination of preformed armor rods, such as being made into smooth dome-type or Duckbill type.The preformed structure of the individual layer of prior art because electric current often changes in the lead, causes lead heating in actual applications, thus the lead that causes, aluminium hydraulic pressed connecting pipe, splicing sleeve change in size; And these change in size are inhomogeneous, can produce internal stress, especially preformed armor rods at connecting portion and fatigue can occur, and then reduce the intensity that continues.And the filling preformed armor rods is set on the lead of the utility model outside the aluminium hydraulic pressed connecting pipe two ends, even if aforementioned situation of expanding with heat and contract with cold frequently occurs, the preformed armor rods of its outer field strengthening action is even variation comparatively speaking, can not produce internal stress, thereby avoids fatigue damage.
Description of drawings
Fig. 1 is the structural representation of preformed armor rods in the utility model
Fig. 2 is the left view of Fig. 1
Fig. 3 is the structural representation of filling preformed armor rods in the utility model
Fig. 4 the utility model user mode reference diagram
Fig. 5 is A-A cutaway view among Fig. 4 (first kind of execution mode)
Fig. 6 is B-B cutaway view among Fig. 4 (first kind of execution mode)
Fig. 7 is A-A cutaway view among Fig. 4 (second kind of execution mode)
Fig. 8 is B-B cutaway view among Fig. 4 (second kind of execution mode)
Fig. 9 is C-C cutaway view among Fig. 4 (second kind of execution mode)
1 is aluminium hydraulic pressed connecting pipe among the figure, the 2nd, and preformed armor rods, the 3rd, lead, the 4th, fill preformed armor rods, the 10th, splicing sleeve, the 31st, aluminium stranded conductor, the 32nd, steel reinforced aluminium conductor, the 320th, steel core.
Embodiment
The utility model is shown in Fig. 1-9: comprise aluminium hydraulic pressed connecting pipe 1 and preformed armor rods 2, described aluminium hydraulic pressed connecting pipe 1 is with described lead 3 butt joints, it also comprises fills preformed armor rods 4, described filling preformed armor rods 4 wraps on the root surface of lead 3 towards aluminium hydraulic pressed connecting pipe 1 mouth of pipe, and described preformed armor rods 2 twines, wraps on the outer surface of described filling preformed armor rods 4 and aluminium hydraulic pressed connecting pipe 1.
Described preformed armor rods 2 and described filling preformed armor rods 4 are twist.
Convenient during for installation, the described preformed armor rods 2 of 2-5 root can be connected as a single entity side by side, coiling is twist again.Based on same purpose, the described filling preformed armor rods 4 of 2-5 root can be connected as a single entity side by side, coiling is twist again.
The diameter of filling preformed armor rods 4 is 1/2 of aluminium hydraulic pressed connecting pipe diameter and a diameter of wire difference, or is slightly less than this size, to guarantee abundant contact.
The internal diameter of preformed armor rods 2 is more smaller than the external diameter that is wound with lead 3 parts of filling preformed armor rods 4, to guarantee abundant contact; With aluminium hydraulic pressed connecting pipe 1 contact site, the internal diameter of preformed armor rods 2 is more smaller than aluminium hydraulic pressed connecting pipe 1 external diameter, to guarantee abundant contact.
Claims (6)
1. lead connection device, comprise aluminium hydraulic pressed connecting pipe and preformed armor rods, described aluminium hydraulic pressed connecting pipe docks described lead, it is characterized in that, it also comprises the filling preformed armor rods, described filling preformed armor rods wraps on the root surface of lead towards the aluminium hydraulic pressed connecting pipe mouth of pipe, and described preformed armor rods twines, wraps on the outer surface of described filling preformed armor rods and aluminium hydraulic pressed connecting pipe.
2. lead connection device according to claim 1 is characterized in that, described preformed armor rods and described filling preformed armor rods are twist.
3. lead connection device according to claim 2 is characterized in that, the described preformed armor rods of 2-5 root is connected as a single entity side by side, and coiling twist again.
4. lead connection device according to claim 2 is characterized in that, the described filling preformed armor rods of 2-5 root is connected as a single entity side by side, and coiling twist again.
5. according to claim 1,2,3 or 4 described lead connection devices, it is characterized in that described lead is an aluminium stranded conductor.
6. according to claim 1,2,3 or 4 described lead connection devices, it is characterized in that described lead is a steel reinforced aluminium conductor; Also be provided with the splicing sleeve of the described steel core that is used to continue in the described aluminium hydraulic pressed connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205606424U CN201853813U (en) | 2010-09-30 | 2010-09-30 | Wire connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205606424U CN201853813U (en) | 2010-09-30 | 2010-09-30 | Wire connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201853813U true CN201853813U (en) | 2011-06-01 |
Family
ID=44096195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205606424U Expired - Fee Related CN201853813U (en) | 2010-09-30 | 2010-09-30 | Wire connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201853813U (en) |
-
2010
- 2010-09-30 CN CN2010205606424U patent/CN201853813U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |