CN209947562U - Built on stilts bare conductor buckle formula polyolefin material insulating sheath - Google Patents
Built on stilts bare conductor buckle formula polyolefin material insulating sheath Download PDFInfo
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- CN209947562U CN209947562U CN201920370561.9U CN201920370561U CN209947562U CN 209947562 U CN209947562 U CN 209947562U CN 201920370561 U CN201920370561 U CN 201920370561U CN 209947562 U CN209947562 U CN 209947562U
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- polyolefin material
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- 239000000463 material Substances 0.000 title claims abstract description 15
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 title claims abstract description 13
- 241000272165 Charadriidae Species 0.000 title description 3
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000005855 radiation Effects 0.000 claims abstract 2
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 241000628106 Oxygonum sinuatum Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses mainly study a convenient type insulation product that is arranged in protecting low and medium voltage electric power system to make somebody a mere figurehead conductor: an aerial bare conductor snap-in polyolefin material insulating sheath. The sheath is made of polyolefin material which is resistant to ultraviolet radiation and can be applied to outdoor insulation occasions for a long time. The application state of the sheath product comprises the following components: a sheet-shaped abnormal structure body which is processed by polyolefin materials through a rubber-plastic extruder and is provided with a double-side double-leaf thorn edge and a single-side double-leaf hook edge on the left side and the right side; the sheet-shaped special-shaped structure body can completely buckle the thorn-hook edges at the left side and the right side in a winding mode to form the tubular sheath. This sheath simple to operate, lock sound construction and insulating properties are good.
Description
The technical field is as follows:
the utility model discloses the product relates to a polyolefin material insulating sheath that middle low voltage electric power system built on stilts bare conductor carries out insulation protection.
Background art:
at present, on insulation protection engineering of medium-voltage 1kV, 10kV, 20kV and 35kV overhead bare conductors, three schemes are mainly adopted: (1) adopting a heat-shrinkable tape; (2) adopting a silicon rubber insulating tape; (3) a snap-in sheath is used. According to the reflection of electric wire netting company actual construction and operation condition, recommend to use buckle formula sheath to carry out insulation protection to bare conductor, its advantage does not need to move a fire in the work progress, need not wrap around the package, effectively solves the problem that the work load is big in the installation.
The problem that current buckle formula sheath exists: (1) patent CN204991303U proposes a buckling sheath with a longitudinal telescopic fold, which aims to adjust the diameter of the sheath and mount the sheath on bare conductors with different diameters, but in practice, the fold stretching requires a large pulling force, which causes inconvenience in mounting during construction; (2) the blocking piece is added on one side inside the buckle sheath provided by patent CN201707948U, the creepage distance is expected to be increased, but actually the overhead bare conductor is in bidirectional creepage, the blocking piece on one side cannot increase the creepage distance, and meanwhile, the section buckling structure of the buckle sheath is designed to be in a single-thorn + left-right single-hook form, so that the barb is easy to be disengaged in actual use, and the buckling part of the sheath is cracked; (3) the buckle sheath that patent CN205542223U designed chooses for use the silicon rubber material to make, and is different with this novel used material of buckle formula sheath, and what its cross-sectional lock structure adopted is single ball + nest type lock structure, need use the adhesive to bond, causes the installation inconvenient, and in use easily appears the adhesive and ages inefficacy moreover, leads to sheath lock position fracture.
The invention content is as follows:
the technical problems to be solved are as follows:
present buckle formula sheath is in the use, the problem that needs to solve: the buckling of the buckle sheath needs to be firm and not easy to disengage, and the stability of the sheath in an application state needs to be improved.
The technical scheme is as follows:
in order to solve the above problems, the utility model provides a buckle formula polyolefin material insulating sheath. The sheath is made of polyolefin materials, a sheet-shaped special-shaped structure body is processed through an extruder, the middle part of the sheet-shaped special-shaped structure body is a sheet-shaped pipe body, and the left side and the right side of the sheet-shaped pipe body are respectively provided with a double-side double-leaf thorn edge and a single-side double-leaf hook edge. When the insulation protection device is used, the sheet special-shaped structure can be wound on an overhead bare conductor and directly buckled from the outside, and the insulation protection of the bare conductor is conveniently and quickly realized.
According to the utility model discloses a preferred embodiment of buckle formula insulating sheath, the sheath adopt the polyolefin material of ultraviolet irradiation resistant outdoor insulation application, have excellent ageing resistance and insulating properties.
According to the utility model discloses a preferred embodiment of buckle formula insulating sheath, the intermediate part of sheath is the slice body, all is equipped with a two leaf thorn arriss of two sides and a unilateral two leaf hook arriss in the left and right sides, can be by manual or mechanical package and apply the winding method, will sting the arris and hook arris lock together, forms the tubulose sheath, simple to operate need not use the adhesive, and the two thorn two hook lock structures that form simultaneously are more firm, and the sheath is difficult for droing, can strengthen the stability that the sheath was used.
Has the advantages that:
buckle formula polyolefin material insulating sheath ultraviolet irradiation resistant, excellent weatherability has. The double-leaf double-thorn double-hook structure of the insulating sheath is firm in buckling, can enhance the stability in an application state, is convenient to install and easy to detach and replace, and can meet the requirement of outdoor long-term use.
The utility model discloses an insulating sheath is fit for being applied to:
1. insulation protection of medium and low voltage 1kV, 10kV, 20kV and 35kV overhead bare conductors of town power grids and rural power grids;
2. the insulation protection of the power transmission lines penetrating through forests, private houses and the like is realized, so that the safety margin is increased;
3. the protection to the transmission line of occasions such as crossing bridge, tunnel prevents because of the flashover accident that drips or icicle formed.
Drawings
Fig. 1 is a cross-sectional view of the present invention in an applied state.
Fig. 2 is a cross-sectional view of the present invention in a non-applied state.
In the figure: 1 is a sheet pipe body part of the sheet special-shaped structure body, 2 is a single-side double-leaf hook-shaped structure of the sheet special-shaped structure body, and 3 is a tower-shaped double-side double-leaf thorn-shaped structure of the sheet special-shaped structure body.
Detailed Description
As shown in fig. 1, the snap-in polyolefin insulation sheath is a cross-sectional view in practical application. The sheath is made of polyolefin materials through processing by an extruder, the structure of a cross-sectional view which is unfolded in a non-use state is shown in figure 2, the middle part of the sheath is composed of a sheet-shaped tube body 1, a single-side double-leaf hook edge 2 and a double-side double-leaf thorn edge 3 are arranged on the left side and the right side of the sheet-shaped tube body, the sheet-shaped tube body is bent in a manual or mechanical wrapping and winding mode during application, and the double-leaf thorn edges and the double-hook edges on the left side and the right side are buckled together to form the tubular sheath.
Claims (1)
1. The utility model provides an aerial bare conductor buckle formula polyolefin material insulating sheath which characterized in that: made of polyolefin materials for outdoor insulation applications resistant to ultraviolet radiation; the sheath is a sheet-shaped special-shaped structure body, the left side and the right side of the special-shaped structure body are asymmetrically provided with a double-side double-leaf thorn edge and a single-side double-leaf hook edge; the sheet special-shaped structure body can enable the barbed edges and the hooked edges on the two sides to be buckled to form a complete tubular sheath in a winding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370561.9U CN209947562U (en) | 2019-03-22 | 2019-03-22 | Built on stilts bare conductor buckle formula polyolefin material insulating sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370561.9U CN209947562U (en) | 2019-03-22 | 2019-03-22 | Built on stilts bare conductor buckle formula polyolefin material insulating sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209947562U true CN209947562U (en) | 2020-01-14 |
Family
ID=69124871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920370561.9U Expired - Fee Related CN209947562U (en) | 2019-03-22 | 2019-03-22 | Built on stilts bare conductor buckle formula polyolefin material insulating sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209947562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022088575A1 (en) * | 2020-10-29 | 2022-05-05 | 浙江一舟电子科技股份有限公司 | Special-shaped shielded cable and method for manufacturing same |
| CN116884676A (en) * | 2023-07-28 | 2023-10-13 | 广东电网有限责任公司江门供电局 | Insulation reinforcing device for power transmission and transformation overhead bare conductor and installation method thereof |
-
2019
- 2019-03-22 CN CN201920370561.9U patent/CN209947562U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022088575A1 (en) * | 2020-10-29 | 2022-05-05 | 浙江一舟电子科技股份有限公司 | Special-shaped shielded cable and method for manufacturing same |
| CN116884676A (en) * | 2023-07-28 | 2023-10-13 | 广东电网有限责任公司江门供电局 | Insulation reinforcing device for power transmission and transformation overhead bare conductor and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |