CN203961418U - A kind of power transmission tower cross-arm - Google Patents
A kind of power transmission tower cross-arm Download PDFInfo
- Publication number
- CN203961418U CN203961418U CN201420319288.4U CN201420319288U CN203961418U CN 203961418 U CN203961418 U CN 203961418U CN 201420319288 U CN201420319288 U CN 201420319288U CN 203961418 U CN203961418 U CN 203961418U
- Authority
- CN
- China
- Prior art keywords
- cross
- arm
- line
- installation portion
- power transmission
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 239000005413 snowmelt Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The utility model discloses a kind of power transmission tower cross-arm, comprise cross-arm body, be fixedly arranged on the line tower at described cross-arm body two ends, by the fixing power line of described line tower, deicing loop; Described deicing loop comprises heating cable, energy taking device and the switching device of series connection, and described heating cable and described power line be arranged in parallel and also fix by described line tower; Described line tower comprises the cylindricality installation portion that is positioned at bottom and the clamping part that is positioned at top, and described clamping part is used for clamping described heating cable and described power line, and is provided with elastic body between the bottom surface of described clamping part and the end face of described cross-arm body; Described switching device comprises movable contact spring and two static contacts, and described movable contact spring is arranged on described installation portion, and two described static contacts are all arranged at described installing hole inwall.A kind of power transmission tower cross-arm described in the utility model, the work that can automatically start snow melt cable or heating tape also stops the work of snow melt cable or heating tape automatically.
Description
Technical field
The utility model relates to a kind of power transmission tower cross-arm, belongs to electric power network equipment technical field.
Background technology
Grid power transmission circuit usually can freeze in the winter time in sleety weather, and grid power transmission circuit gravity load is increased, and the situation of transmission line of electricity fracture easily occurs, and finally causes industry and resident's large-area power-cuts, and easily causes secondary accident.In prior art, the method mainly solving for the problems referred to above is by artificial deicing or on transmission line of electricity, lays snow melt cable or heating tape solves, lay snow melt cable or heating tape and can effectively alleviate the labour intensity of operating personnel's deicing, but, existing snow melt cable or heating tape start judging of opportunity and still rely on as artificial judgement, therefore operating personnel still has certain supervision workload, and easily there is to monitor situation not in time, cause failing timely snow melt deicing or fail to stop in time the work of snow melt cable or heating tape and cause the waste of the energy.
Utility model content
The deficiency that the utility model exists for prior art just, provides a kind of power transmission tower cross-arm, can automatically start the work of snow melt cable or heating tape and automatically stop suitably the work of snow melt cable or heating tape opportunity opportunity suitably.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of power transmission tower cross-arm, comprising:
Cross-arm body, be fixedly arranged on the line tower at described cross-arm body two ends, by the fixing power line of described line tower, deicing loop;
Described deicing loop comprises heating cable, energy taking device and the switching device of series connection, and described heating cable and described power line be arranged in parallel and also fix by described line tower;
Described line tower comprises the cylindricality installation portion that is positioned at bottom and the clamping part that is positioned at top, described clamping part is used for clamping described heating cable and described power line, described cross-arm body two ends are provided with cylindricality installing hole, described installation portion is arranged in described installing hole, and is provided with elastic body between the bottom surface of described clamping part and the end face of described cross-arm body;
Described switching device comprises movable contact spring and two static contacts, two described static contacts connect respectively two electrodes of described energy taking device by described heating cable, described movable contact spring is for connecting mutually not two described static contacts of admittance, and described movable contact spring is arranged on described installation portion, two described static contacts are all arranged at described installing hole inwall.
As the improvement of technique scheme, described elastic body is the spring that is set in described installation portion outside.
As the improvement of technique scheme, described movable contact spring is tubular structure and is wrapped in described installation portion side.
As the improvement of technique scheme, described energy taking device is current transformer power taking equipment or dividing potential drop electric capacity power taking equipment.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
A kind of power transmission tower cross-arm described in the utility model, the variation while freezing according to power line accumulated snow, power line own wt being caused, control the work of snow melt cable or heating tape, thereby can increase to the threshold automatic work that starts snow melt cable or heating tape on opportunity in the icing weight of power line, and complete weight and be reduced to threshold and automatically stop opportunity the work of snow melt cable or heating tape at de-icing of power transmission lines, thereby be conducive to alleviate operating personnel's tour workload, and reduce freeze destructiveness to power line of accumulated snow, and the work that automatically stops snow melt cable or heating tape contributes to energy-conservation.
Brief description of the drawings
Fig. 1 is a kind of power transmission tower cross-arm overall structure schematic diagram described in the utility model;
Fig. 2 is the local structure for amplifying schematic diagram of a kind of power transmission tower cross-arm described in the utility model;
Fig. 3 is deicing loop structure schematic diagram described in the utility model.
Detailed description of the invention
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1 to Figure 3, be a kind of power transmission tower cross-arm structural representation described in the utility model.A kind of power transmission tower cross-arm described in the utility model, comprising: cross-arm body 1, be fixedly arranged on the line tower 2 at described cross-arm body 1 two ends, by the fixing power line 3 of described line tower 2, deicing loop; Described deicing loop comprises heating cable 4, energy taking device 5 and the switching device 6 of series connection, and described heating cable 4 be arranged in parallel with described power line 3 and be also fixing by described line tower 2; Described line tower 2 comprises the cylindricality installation portion 21 that is positioned at bottom and the clamping part 22 that is positioned at top, described clamping part 22 is for clamping described heating cable 4 and described power line 3, described cross-arm body 1 two ends are provided with cylindricality installing hole 11, described installation portion 21 is arranged in described installing hole 11, and is provided with elastic body 7 between the bottom surface of described clamping part 22 and the end face of described cross-arm body 1; Described switching device 6 comprises movable contact spring 61 and two static contacts 62, two described static contacts 62 connect respectively two electrodes of described energy taking device 5 by described heating cable 4, described movable contact spring 61 is for connecting mutually not two described static contacts 62 of admittance, and described movable contact spring 61 is arranged on described installation portion 21, two described static contacts 62 are all arranged at described installing hole 11 inwalls.Specifically preferably, described elastic body 7 is for being set in the spring in described installation portion 21 outsides.Preferably, described movable contact spring 61 is tubular structure and is wrapped in described installation portion 21 sides.Particularly, described energy taking device 5 is current transformer power taking equipment or dividing potential drop electric capacity power taking equipment.Described cross-arm body 1 is fixedly arranged on the power transmission tower 8 shown in Fig. 1.
Under power line 3 normal operating conditions, because the effect of elastic body 7 makes the height of installation portion 21 higher, thereby described movable contact spring 61 is not contacted between 62, two described static contacts 62 of two described static contacts in off-state.In the time that the surperficial accumulated snow of power line 3 freezes, because the weight of power line 3 increases, make line tower 2 overcome the effect of elastic body 7 and decline, thereby make described movable contact spring 61 connect two described static contacts 62, start working in described deicing loop, provide energy by energy taking device 5, the heating cable 4 snow melt deicing of generating heat in closed-loop path.Current transformer power taking equipment or dividing potential drop electric capacity power taking equipment are equipment ripe in prior art, and therefore without repeating its concrete structure, the energy taking device 5 shown in Fig. 3 is the schematic construction of current transformer power taking equipment.After power line 3 surface area snow and ice layers are removed, due to the weight saving of power line 3, under the effect of elastic body 7, make the height of installation portion 21 raise, thereby make described movable contact spring 61 cut off two admittances between described static contact 62.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (4)
1. a power transmission tower cross-arm, is characterized in that, comprising:
Cross-arm body (1), be fixedly arranged on the line tower (2) at described cross-arm body (1) two ends, by described line tower (2) fixing power line (3), deicing loop;
Described deicing loop comprises heating cable (4), energy taking device (5) and the switching device (6) of series connection, and described heating cable (4) be arranged in parallel with described power line (3) and be also fixing by described line tower (2);
Described line tower (2) comprises the cylindricality installation portion (21) that is positioned at bottom and the clamping part (22) that is positioned at top, described clamping part (22) is for clamping described heating cable (4) and described power line (3), described cross-arm body (1) two ends are provided with cylindricality installing hole (11), described installation portion (21) is arranged in described installing hole (11), and is provided with elastic body (7) between the bottom surface of described clamping part (22) and the end face of described cross-arm body (1);
Described switching device (6) comprises movable contact spring (61) and two static contacts (62), two described static contacts (62) connect respectively two electrodes of described energy taking device (5) by described heating cable (4), described movable contact spring (61) is for connecting mutually not two described static contacts (62) of admittance, and it is upper that described movable contact spring (61) is arranged at described installation portion (21), and two described static contacts (62) are all arranged at described installing hole (11) inwall.
2. a kind of power transmission tower cross-arm as claimed in claim 1, is characterized in that, described elastic body (7) is for being set in the spring outside described installation portion (21).
3. a kind of power transmission tower cross-arm as claimed in claim 1, is characterized in that, described movable contact spring (61) is for tubular structure and be wrapped in described installation portion (21) side.
4. a kind of power transmission tower cross-arm as claimed in claim 1, is characterized in that, described energy taking device (5) is current transformer power taking equipment or dividing potential drop electric capacity power taking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319288.4U CN203961418U (en) | 2014-06-16 | 2014-06-16 | A kind of power transmission tower cross-arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319288.4U CN203961418U (en) | 2014-06-16 | 2014-06-16 | A kind of power transmission tower cross-arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961418U true CN203961418U (en) | 2014-11-26 |
Family
ID=51922019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319288.4U Active CN203961418U (en) | 2014-06-16 | 2014-06-16 | A kind of power transmission tower cross-arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269102A (en) * | 2017-07-18 | 2017-10-20 | 国网河南省电力公司桐柏县供电公司 | A kind of cross-arm support meanss with ice-melt function |
| CN109616978A (en) * | 2018-11-08 | 2019-04-12 | 南安市尚赢机械科技有限公司 | A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted |
-
2014
- 2014-06-16 CN CN201420319288.4U patent/CN203961418U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269102A (en) * | 2017-07-18 | 2017-10-20 | 国网河南省电力公司桐柏县供电公司 | A kind of cross-arm support meanss with ice-melt function |
| CN107269102B (en) * | 2017-07-18 | 2019-04-26 | 国网河南省电力公司桐柏县供电公司 | A kind of cross arm support device with ice-melt function |
| CN109616978A (en) * | 2018-11-08 | 2019-04-12 | 南安市尚赢机械科技有限公司 | A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204886092U (en) | High -voltage line removes ice structure | |
| CN201230185Y (en) | Failure eliminating device for electric power line | |
| CN204732829U (en) | A kind of deicer for power transmission conducting wire | |
| CN102611061B (en) | Single-pole ground loop type direct-current deicing method for overhead ground wire and OPGW (optical fiber composite overhead ground wire) | |
| CN205096125U (en) | Power equipment snow clearing device | |
| CN204441838U (en) | A kind of cable de-icing device | |
| CN203787916U (en) | High-voltage power transmission line operation state automatic monitoring ice-melting device | |
| CN204746960U (en) | Insulator self -cleaning device | |
| CN203961418U (en) | A kind of power transmission tower cross-arm | |
| CN102931609A (en) | Operation method for replacing 10kV drop-out fuse in on-load manner | |
| CN203672336U (en) | Power transmission pole tower inclination angle monitoring system based on ZigBee network | |
| CN202206095U (en) | Cable with solar energy photovoltaic power generation system for supplying power for ice and snow melting apparatus | |
| CN202332338U (en) | Deicing transmission cable | |
| CN204517338U (en) | A kind of cable deicing equipment | |
| CN205666588U (en) | Rotatory ware that opens ice of power line | |
| CN102280848A (en) | Cable line with solar photovoltaic generating system for supplying power to ice and snow melting device | |
| CN201902235U (en) | Automatic control type ice-melting system used in railway tunnel | |
| CN204886093U (en) | Manipulator of high -voltage line de -icer | |
| CN203991434U (en) | A kind of insulator cleaning device | |
| CN204205517U (en) | A kind of automatic defrosting snow device of transmission system | |
| CN202260345U (en) | Power transmission line AC ice melting device adopting capacitor reactive compensation | |
| CN204012591U (en) | A kind of deicer for power transmission line | |
| CN205755155U (en) | A kind of distance high voltage line maintenance safeguards special monitoring box | |
| CN203895923U (en) | High voltage line deicer | |
| CN202450482U (en) | Deicing rod on top and at high place of tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |