CN102738758B - A kind of cable expansion arc dog-ear device - Google Patents
A kind of cable expansion arc dog-ear device Download PDFInfo
- Publication number
- CN102738758B CN102738758B CN201110083346.9A CN201110083346A CN102738758B CN 102738758 B CN102738758 B CN 102738758B CN 201110083346 A CN201110083346 A CN 201110083346A CN 102738758 B CN102738758 B CN 102738758B
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- Prior art keywords
- cable
- rotating dog
- dog
- bridge
- knuckle
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- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000002835 absorbance Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The present invention relates to a kind of cable expansion arc dog-ear device, this device is the rotating dog of horizontal or vertical setting, and rotating dog is foursquare frame-shaped construction, and the middle part of dual-side is connected on knuckle support.Compared with prior art, structure of the present invention is simple, easy for installation, can rotate according to the situation of expanding with heat and contract with cold, be fixedly mounted on by cable on bridge, farthest reduction is flexible changes with knuckle the adverse effect caused cable, improve the useful life of cable, guarantee the safe operation of cable.
Description
Technical field
The present invention relates to a kind of stube cable to stretch arc device, especially relate to a kind of cable expansion arc dog-ear device.
Background technology
220kV Chongming networking project lays 2 go back tos 220kV cable lines station, 220kV Chen Jia town to Chongming Island from station, sea, 220kV continent, and cut-offs ring and enter to be positioned at station, 220kV Changxing in Changxing Island.By detailed investigation, analyze, compare, engineering is determined to adopt the Shanghai Chong Su major path route scheme of building, basin for shipping, south, the Changjiang river is passed through with tunnel style, basin for shipping, north, the Changjiang river is crossed in bridge mode, full line length is about 37km, bridge tunel engineering maximum in the world at present, the power cable bridge engineering of the domestic the first 220kV electric pressure of Ye Shi China simultaneously.Bridge, owing to being subject to the impact of dynamic loading of current, wind, earthquake etc. of the change of temperature, vehicle, produces flexible and knuckle at the two ends of bridge.For the large length bridge of the soft structure such as suspension bridge, cable-stayed bridge, this two kinds of factors to be considered simultaneously; And for the rigid structure such as metal bridge, concrete bridge small bridge, because knuckle change is little, can ignore, therefore only consider the telescopic variation of length direction.Since there have been these to change, just need the impact caused for flexible and knuckle, necessary measure has been taked to the cable be laid on bridge, eliminated or farthest reduce flexible and knuckle and change the adverse effect that cable is caused.Modern bridge generally adopts concrete or steel construction, bridge in running because variations in temperature, humidity change and load variations all will cause bridge structure to deform.
For bridge cabling, laying high-tension cable needs to consider to adapt to this particular surroundings of bridge, avoids the factors such as bridge is flexible, vibration to affect cable running safety.This engineering 220kV power cable, when expansion joint place is laid, to stretch amplitude to tackle bridge better, therefore need install the stretching absorbance device being used for power cable laying and absorbing stroke change in the position at expansion joint, be called for short offset device.
Offset device technique stems from Japan at first, has achieved develop widely through application study for many years.Even to this day, the existing multiple power cable layer engineering in the whole world have employed offset device and deals with the flexible and knuckle problem of bridge.
Summary of the invention
Object of the present invention is exactly to overcome the defect and the cable expansion arc dog-ear device that provides a kind of structure simple, easy for installation that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of cable expansion arc dog-ear device, it is characterized in that, this device is the rotating dog of horizontal or vertical setting, and rotating dog is foursquare frame-shaped construction, and the middle part of dual-side is connected on knuckle support.
Described rotating dog adopts stainless steel tube to make and obtains.
Diagonal brace through activity between four limits of described rotating dog connects, and the middle part of dual-side is provided with bolt, is fixedly connected on knuckle support.
Described knuckle support is made up of angle steel and connecting plate, and described connecting plate is provided with screw, mates be connected with the bolt on rotating dog side.
Compared with prior art, structure of the present invention is simple, easy for installation, can rotate according to the situation of expanding with heat and contract with cold, be fixedly mounted on by cable on bridge, farthest reduction is flexible changes with knuckle the adverse effect caused cable, improve the useful life of cable, guarantee the safe operation of cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1 be rotating dog, 11 be diagonal brace in figure, 12 be bolt, 2 for knuckle support.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of cable expansion arc dog-ear device, its structure as shown in Figure 1, this device is the rotating dog 1 of horizontal or vertical setting, adopt stainless steel tube to make to obtain, rotating dog 1 is foursquare frame-shaped construction, diagonal brace 11 through activity between four limits of rotating dog 1 connects, and the middle part of dual-side is provided with bolt 12, is fixedly connected on knuckle support.Knuckle support 2 is made up of angle steel and connecting plate, and connecting plate is provided with screw, mates be connected with the bolt 12 on rotating dog 1 side.By level to and vertical the present invention arranged can ensure when bridge end knuckle normal work, and guarantee the safe operation of cable.
Claims (1)
1. a cable expansion arc dog-ear device, is characterized in that, this device is the rotating dog of horizontal or vertical setting, and rotating dog is foursquare frame-shaped construction, and the middle part of dual-side is connected on knuckle support; Diagonal brace through activity between four limits of described rotating dog connects, and the middle part of dual-side is provided with bolt, is fixedly connected on knuckle support;
Described rotating dog adopts stainless steel tube to make and obtains, and described knuckle support is made up of angle steel and connecting plate, and described connecting plate is provided with screw, mates be connected with the bolt on rotating dog side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083346.9A CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083346.9A CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102738758A CN102738758A (en) | 2012-10-17 |
| CN102738758B true CN102738758B (en) | 2015-08-05 |
Family
ID=46993781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110083346.9A Active CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102738758B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566924B (en) * | 2021-11-22 | 2023-10-27 | 浙江华云电力工程设计咨询有限公司 | Horizontal modularized bridge-following cable expansion compensation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263801Y (en) * | 1995-08-24 | 1997-10-01 | 英业达股份有限公司 | Retraction stand for open cover type electronic display device |
| CN202019177U (en) * | 2011-04-02 | 2011-10-26 | 上海市电力公司 | Break angle device arranged on cable telescoping arc |
-
2011
- 2011-04-02 CN CN201110083346.9A patent/CN102738758B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263801Y (en) * | 1995-08-24 | 1997-10-01 | 英业达股份有限公司 | Retraction stand for open cover type electronic display device |
| CN202019177U (en) * | 2011-04-02 | 2011-10-26 | 上海市电力公司 | Break angle device arranged on cable telescoping arc |
Non-Patent Citations (3)
| Title |
|---|
| 东海大桥敷设电力电缆设计探讨;孟毓,龚尊;《上海市电气工程设计研究会2007年学术年会》;20071001;75-78 * |
| 大呜门吊桥上架设高压电力交联电缆;陶坊资;《电力建设》;19870531(第5期);第19-25页 * |
| 远距离跨海大桥高压电缆敷设工程;周韫捷等;《电网技术》;20061130;第30卷(第22期);87-90 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102738758A (en) | 2012-10-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. SHANGHAI ELECTRIC POWER C Free format text: FORMER OWNER: SHANGHAI JIULONG ELECTRIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20130110 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130110 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Shanghai Electric Power Communication Co., Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: Shanghai Jiulong Electric Power Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |