CN202544474U - Cross arm used on top of telegraph pole - Google Patents
Cross arm used on top of telegraph pole Download PDFInfo
- Publication number
- CN202544474U CN202544474U CN2012201265078U CN201220126507U CN202544474U CN 202544474 U CN202544474 U CN 202544474U CN 2012201265078 U CN2012201265078 U CN 2012201265078U CN 201220126507 U CN201220126507 U CN 201220126507U CN 202544474 U CN202544474 U CN 202544474U
- Authority
- CN
- China
- Prior art keywords
- umbrella cover
- electric pole
- arm
- cross
- cross arm
- 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 - Lifetime
Links
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 19
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000002788 crimping Methods 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 abstract 3
- 238000004073 vulcanization Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Images
Landscapes
- Walking Sticks, Umbrellas, And Fans (AREA)
- Insulators (AREA)
Abstract
The utility model discloses a cross arm used on the top of a telegraph pole. The cross arm comprises an insulating core bar, a silicone rubber umbrella cover, and a connection fitting mounted on both ends of the insulating core bar, wherein the connection fitting comprises a chassis fixed on the telegraph pole and a pressing cover; the silicone rubber umbrella cover is sheathed on the outer wall of the insulating core bar; the connection fitting on both ends of the insulating core bar is connected with the outer wall of the insulating core bar in a crimping manner; the core bar has an integrated structure; the silicone rubber umbrella cover is prepared by integrated injection and vulcanization molding process; and a clip device for fixing wires is also arranged on the pressing cover. The cross arm provided by the utility model has the advantages that the cross arm is simple in structure since a plurality of parts are reduced while the compressive strength is guaranteed; the connection safety of the product is improved greatly by using the crimping process; and the probability of air bubbles on the interface is lowered by adopting the integrated injection and vulcanization molding process so as to improve the electric property of the interface and prevent the interface from being broken through by electric field with overlarge intensity, thereby prolonging the service life and improving the safety of the cross arm indirectly.
Description
Technical field
The utility model relates to power domain, is meant a kind of cross-arm that is used for the electric pole top especially.
Background technology
Flourish along with China's power domain, electric pole is widely used in power domain, also extensively applies on the electric pole at supporting electric wire this part cross-arm; Existing cross-arm is made up of three parts of connection gold utensil at insulation mandrel, silicon rubber umbrella cover and two ends, and scribbles coupling agent at mandrel surface, and the sulfuration of silicon rubber umbrella cover is socketed on the plug outer wall; Contact surface between the two is the interface; This spline structure is provided with, and usually there is bubble in the interface, under the excessive situation of electric field electric current; Cause the interface breakdown easily, cause the application life of whole cross-arm shorter; Particularly at 220KV and above electric pressure product this part, in order to reach the requirement of compressive strength, owing to receive production capacity and level of production factor affecting; Cross-arm adopts the structure of two joints basically, and is middle with flange connection, such complex structure; Increase manufacturing cost, reduced security performance.
The utility model content
To the deficiency that prior art exists, the purpose of the utility model is to provide a kind of application life the long and cross-arm that is used for the electric pole top simple in structure.
For realizing above-mentioned purpose; The utility model provides following technical scheme: a kind of cross-arm that is used for the electric pole top; Comprise insulation mandrel, silicon rod glue umbrella cover and be installed on the connection gold utensil at insulation mandrel two ends; Described connection gold utensil comprises the chassis of being fixed in electric pole and presses cover, and the silicon rubber umbrella cover is socketed on the insulation mandrel outer wall, it is characterized in that: described silicon rubber umbrella cover and insulation mandrel outer wall employing general injection sulfidization molding; Connect gold utensil and adopt compression joint technique to be connected, also be provided with the fixing bayonet unit of supply lines on the described pressure cover with insulation mandrel.
Through adopting technique scheme; When guaranteeing flexural strength, a plurality of parts have been reduced; And it is simple in structure; Use moulding process to connect and greatly reduce the probability that is prone to exist bubble on the interface, and the breakdown accident conditions in interface when preventing that electric field is excessive, improved the application life and the product safety performance of cross-arm.
The utility model further is set to: described bayonet unit is provided with groove and pressing plate for another axial end portion of pressing the relative insulation mandrel that covers, the fixed mechanism that described pressing plate also is provided with and presses cover to be fixedly connected.
Through adopting technique scheme, the bayonet unit of this groove and pressing plate is easy to processing and easy and simple to handle, simple in structure, greatly reduces cost of production.
The utility model also further is set to: described chassis surface is provided with in order to fixing through hole, lay respectively on the same periphery, and six five equilibrium settings.
Through adopting technique scheme, the through hole gram of setting supplies to confine screw and passes, and is easy to processing, and is fixing relatively more firm.
The utility model also further is set to: described silicon rubber umbrella cover surface is provided with a plurality of full skirts.
Through adopting technique scheme, increased creep age distance, improved insulating properties greatly.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model specific embodiment structural representation;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the B portion enlarged drawing of Fig. 1;
Fig. 4 is the utility model specific embodiment base vertical view;
Fig. 5 presses the end vertical view of cover for the utility model specific embodiment.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 1-shown in Figure 3, the utility model discloses a kind of cross-arm that is used for the electric pole top, comprise insulation mandrel 2, silicon rod glue umbrella cover 3 and be installed on the connection gold utensil at insulation mandrel two ends; Described connection gold utensil comprises the chassis 1 of being fixed in electric pole and presses cover 4; And silicon rubber umbrella cover 3 is socketed on insulation mandrel 2 outer walls, and in the utility model specific embodiment, described silicon rubber umbrella cover 3 adopts the general injection sulfidization molding in insulation mandrel 2 outer walls; Connecting gold utensil adopts compression joint technique to be connected with insulation mandrel 2; And plug 2 adopts monolithic construction, and silicon rubber umbrella cover 3 adopts whole sulfidization molding, and also is provided with the fixing bayonet unit of supply lines on the pressure cover 4; When guaranteeing compressive strength, a plurality of parts have been reduced; And it is simple in structure; Use crimping to connect and greatly reduce the probability that is prone to exist bubble on the interface, and the breakdown accident conditions in interface when preventing that electric field is excessive, improved the application life and the security performance of cross-arm indirectly.
In the utility model specific embodiment, this bayonet unit is provided with groove 42 and pressing plate 6 for another axial end portion of pressing the relative insulation mandrel that covers, the fixed mechanism that pressing plate 6 also is provided with and presses cover 4 to be fixedly connected; This fixed mechanism is on the pressing plate 6 through hole to be set, and correspondence is provided with internal thread 41 on the pressure cover 4, and is equipped with suitable trip bolt 5; The through hole that trip bolt 5 passes on the pressing plate is threaded with internal thread 41; 1 surface, chassis is provided with in order to fixing through hole 11, lays respectively on the same periphery, and six five equilibrium settings; Silicon rubber umbrella cover surface is provided with a plurality of full skirts 31; Adjacent full skirt is not of uniform size, has increased creep age distance, has improved insulating properties greatly.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. cross-arm that is used for the electric pole top; Comprise insulation mandrel, silicon rod glue umbrella cover and be installed on the connection gold utensil at insulation mandrel two ends; Described connection gold utensil comprises the chassis of being fixed in electric pole and presses cover, and the silicon rubber umbrella cover is socketed on the insulation mandrel outer wall, it is characterized in that: described silicon rubber umbrella cover and insulation mandrel outer wall employing general injection sulfidization molding; Connect gold utensil and adopt compression joint technique to be connected, also be provided with the fixing bayonet unit of supply lines on the described pressure cover with insulation mandrel.
2. the cross-arm that is used for the electric pole top according to claim 1; It is characterized in that: described bayonet unit is provided with groove and pressing plate for another axial end portion of pressing the relative insulation mandrel that covers, the fixed mechanism that described pressing plate also is provided with and presses cover to be fixedly connected.
3. the cross-arm that is used for the electric pole top according to claim 1 and 2 is characterized in that: described chassis surface is provided with in order to fixing through hole, lay respectively on the same periphery, and six five equilibrium settings.
4. the cross-arm that is used for the electric pole top according to claim 1 and 2 is characterized in that: described silicon rubber umbrella cover surface is provided with a plurality of full skirts.
5. the cross-arm that is used for the electric pole top according to claim 3 is characterized in that: described silicon rubber umbrella cover surface is provided with a plurality of full skirts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201265078U CN202544474U (en) | 2012-03-29 | 2012-03-29 | Cross arm used on top of telegraph pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201265078U CN202544474U (en) | 2012-03-29 | 2012-03-29 | Cross arm used on top of telegraph pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544474U true CN202544474U (en) | 2012-11-21 |
Family
ID=47165126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201265078U Expired - Lifetime CN202544474U (en) | 2012-03-29 | 2012-03-29 | Cross arm used on top of telegraph pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202544474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088785A (en) * | 2016-06-08 | 2016-11-09 | 江苏神马电力股份有限公司 | Compound cross-arm and power transmission rod |
| CN107859417A (en) * | 2017-11-24 | 2018-03-30 | 方隆电气设备有限公司 | A kind of composite insulation cross arm |
-
2012
- 2012-03-29 CN CN2012201265078U patent/CN202544474U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088785A (en) * | 2016-06-08 | 2016-11-09 | 江苏神马电力股份有限公司 | Compound cross-arm and power transmission rod |
| WO2017211207A1 (en) * | 2016-06-08 | 2017-12-14 | 江苏神马电力股份有限公司 | Composite cross-arm and transmission mast |
| CN107859417A (en) * | 2017-11-24 | 2018-03-30 | 方隆电气设备有限公司 | A kind of composite insulation cross arm |
| CN107859417B (en) * | 2017-11-24 | 2020-05-12 | 方隆集团有限公司 | Composite insulating cross arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yueqing City, Zhejiang province 325600 Weng Yang Zhen snow Bay Industrial Zone Patentee after: Zonri Electric Co., Ltd. Address before: Yueqing City, Zhejiang province 325600 Weng Yang Zhen snow Bay Industrial Zone Patentee before: Zhejiang Zhongrui Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |