WO2019041619A1 - 一种伞套 - Google Patents

一种伞套 Download PDF

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Publication number
WO2019041619A1
WO2019041619A1 PCT/CN2017/114623 CN2017114623W WO2019041619A1 WO 2019041619 A1 WO2019041619 A1 WO 2019041619A1 CN 2017114623 W CN2017114623 W CN 2017114623W WO 2019041619 A1 WO2019041619 A1 WO 2019041619A1
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WO
WIPO (PCT)
Prior art keywords
umbrella
connecting portion
shed
umbrella cover
protrusion
Prior art date
Application number
PCT/CN2017/114623
Other languages
English (en)
French (fr)
Inventor
马斌
方江
唐利全
姜建泉
Original Assignee
江苏神马电力股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏神马电力股份有限公司 filed Critical 江苏神马电力股份有限公司
Priority to CA2991998A priority Critical patent/CA2991998C/en
Priority to EP17817643.4A priority patent/EP3471113A4/en
Priority to MX2018002168A priority patent/MX2018002168A/es
Priority to BR112018001973-9A priority patent/BR112018001973A2/pt
Priority to US15/743,739 priority patent/US10991488B2/en
Priority to ZA2018/01247A priority patent/ZA201801247B/en
Publication of WO2019041619A1 publication Critical patent/WO2019041619A1/zh
Priority to PH12020500132A priority patent/PH12020500132A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like

Definitions

  • the invention relates to the field of power transmission insulation equipment, in particular to an umbrella sleeve.
  • insulators have been widely used in the power industry.
  • the early insulators were usually porcelain insulators.
  • the porcelain insulators continued to cause pollution flashovers in the case of fouling, causing huge losses to the power grid, seriously affecting the smooth operation of the power grid. .
  • accidents such as rain flashes and ice flashes of porcelain insulators tend to occur frequently.
  • the traditional solution is to apply RTV/PRTV coating on the surface of porcelain insulators.
  • This method is not only costly but also has a limited life and cannot guarantee long-term operation fundamentally.
  • the prior art adopts a single-piece composite material umbrella cover to cover the upper surface of the porcelain insulator to solve the above problems, but the single-piece umbrella cover and the porcelain insulator have poor connection effect, the edge of the umbrella skirt is prone to collapse, and the anti-pollution flashing and flashing effect is not good.
  • one of the objects of the present invention is to provide an umbrella cover capable of accommodating the entire single-piece shed and can be assembled and mounted on the shed without additional connecting parts, which is convenient, efficient and anti-fouling. Flash flash is good.
  • an umbrella cover is wrapped on the outside of the insulator, and the insulator includes at least one shed, the umbrella cover includes a receiving cavity, and the receiving cavity makes the upper surface and the lower surface of the shed The surface is received in the receiving cavity, the umbrella sleeve is provided with a mounting hole for the insulator to be inserted, and an opening corresponding to the mounting hole, the opening communicates with the mounting hole and the outer edge of the umbrella sleeve, and the mounting hole communicates with the receiving cavity, and the two ends of the opening respectively
  • the first connecting portion and the second connecting portion that cooperate with each other are provided, and when the first connecting portion is connected to the second connecting portion, the umbrella cover is closed in the circumferential direction.
  • the above-mentioned umbrella cover adopts a receiving cavity to accommodate the umbrella skirt as a whole in the umbrella cover, and increases the connection area of the umbrella cover and the umbrella skirt, and the connection is more reliable and firm, and the umbrella cover sleeved on the umbrella skirt directly fits the first connecting portion.
  • the umbrella sleeve can be closed in the circumferential direction without additional connecting parts, the installation is convenient and efficient, and the production part does not need to open the mold to produce the connecting parts, thereby saving cost.
  • the umbrella cover is divided into an upper umbrella body by the umbrella tip of the umbrella skirt received by the receiving cavity
  • the first connecting portion is disposed at a portion of the upper umbrella body to provide a first groove
  • the second connecting portion is located at a portion of the upper umbrella body to provide a first piece corresponding to the first groove.
  • the first connecting portion is located at a portion of the lower umbrella body to provide a second groove
  • the second connecting portion is located at a portion of the lower umbrella body to provide a second piece corresponding to the second groove.
  • the first connecting portion and the second connecting portion are connected to the structure of the lap by the groove, and have a large contact area, thereby ensuring the reliability of the connection.
  • an upper surface of the second connecting portion is flush with a surface of the upper umbrella body, and when the second groove is connected with the second piece The lower surface of the second connecting portion is flush with the surface of the lower umbrella body.
  • the connecting surface formed by connecting the first connecting portion and the second connecting portion is flush with the upper and lower surfaces of the umbrella cover, respectively, so that the umbrella sleeve forms continuous upper and lower surfaces, thereby improving the effect of anti-pollution and rain flash.
  • first connecting portion and the second connecting portion are connected by a locking structure.
  • the latch structure is a protrusion and a through hole on the first connecting portion and the second connecting portion, and the diameter of the protrusion and the through hole are tightly matched.
  • the locking structure is a combination of a protrusion and a through hole, and the height of the protrusion may be slightly higher than the through hole, so that the connection is more tight.
  • the first connecting portion is provided with at least one first protrusion on a portion of the upper umbrella body, and the second connecting portion is located at a portion of the upper umbrella body and at least one first through hole is provided to cooperate with the first protrusion. .
  • the first connecting portion is disposed at a portion of the lower umbrella body to provide at least one second protrusion
  • the second connecting portion is located at a portion of the lower umbrella body and at least one second through hole is provided to cooperate with the second protrusion.
  • the arrangement of the protrusions and the through holes on the first connecting portion and the second connecting portion is flexible and convenient according to the size and layout of the actual umbrella sleeve.
  • the umbrella sleeve extends outward from the umbrella tip of the shed to form an elongated portion, and the first connecting portion and the second connecting portion extend along the upper surface of the elongated portion.
  • the above-mentioned extension portion can effectively increase the creepage distance, and further improve the anti-pollution and anti-rain flash performance of the umbrella cover.
  • the insulator comprises an insulating core, and the edge of the mounting hole is along the surface of the shed to the shed.
  • the distance from the tip of the umbrella is less than the distance from the tip of the umbrella skirt to the surface of the shed at the junction of the insulating core and the shed surface.
  • the distance between the edge of the mounting hole along the surface of the shed to the tip of the shed is smaller than the distance from the tip of the shed to the surface of the shed and the surface of the shed, that is, the receiving cavity can completely cover the shed
  • the upper surface and the lower surface may also cover the upper surface and the lower surface of the shed portion of the accommodating cavity, and the utility model can save the cost while achieving the anti-pollution and anti-rain flashing effect, and the umbrella sleeve is conveniently disposed on the insulating core.
  • the receiving cavity is formed by splitting the upper umbrella body and the lower umbrella body which are separately provided.
  • the upper umbrella body and the lower umbrella body are separately arranged, and it is more convenient to install the above-mentioned umbrella cover, and the whole umbrella cover is divided into two independent relatively independent parts, which simplifies the structure and facilitates mold opening production.
  • the insulator comprises an insulating core
  • the sleeve is provided with a sleeve at the mounting hole, and the sleeve extends outwardly away from the surface of the sleeve along the axial direction of the insulating core, and the sleeve is sleeved on the insulating core.
  • the sleeve extends outwardly away from the surface of the sleeve along the axial direction of the insulating core and is coated on the insulating core to further enhance the reliability of the connection between the sleeve and the insulator.
  • FIG. 1 is a perspective view showing the installation of the umbrella cover 100 of the first embodiment of the present invention on the shed 10 without opening;
  • FIG. 2 is a perspective view of the umbrella cover 100 according to the first embodiment of the present invention.
  • FIG. 3 is a top plan view showing that the umbrella cover 100 of the first embodiment of the present invention is mounted on the shed 10 and the opening is not closed;
  • FIG. 4 is a schematic cross-sectional view of the umbrella cover 100 of the first embodiment of the present invention mounted on the shed 10 with the opening not closed along the J-J surface;
  • Figure 5 is an enlarged schematic view showing a portion A of the umbrella cover 100 mounted on the shed 10 with the opening unclosed according to the first embodiment of the present invention
  • Figure 6 is a bottom perspective view showing the umbrella cover 100 of the first embodiment of the present invention installed on the shed 10 with the opening not closed;
  • Fig. 7 is an enlarged schematic view showing a portion B of the umbrella cover 100 according to the first embodiment of the present invention.
  • Figure 8 is a perspective view showing the opening of the umbrella cover 100 mounted on the shed 10 in accordance with the first embodiment of the present invention
  • Fig. 9 is a bottom perspective view showing the umbrella cover 100 of the first embodiment of the present invention mounted on the shed 10 with the opening closed.
  • Figure 10 is a perspective view showing the installation of the umbrella cover 200 of the second embodiment of the present invention on the shed 20 without opening;
  • Figure 11 is a bottom perspective view showing the umbrella cover 200 of the second embodiment of the present invention installed on the shed 20 with the opening not closed;
  • Figure 12 is an enlarged schematic view showing a portion C of the umbrella cover 200 of the second embodiment of the present invention mounted on the shed 20 without opening;
  • Figure 13 is a schematic exploded view of the upper umbrella body 210 and the lower umbrella body 220 according to the second embodiment of the present invention.
  • Figure 14 is an enlarged schematic view showing a portion D of the upper umbrella body 210 according to the second embodiment of the present invention.
  • Fig. 15 is an enlarged schematic view showing a portion E of the lower umbrella body 220 according to the second embodiment of the present invention.
  • Figure 16 is a perspective view of the umbrella cover 300 according to the third embodiment of the present invention.
  • Figure 17 is an enlarged schematic view showing a portion F of the umbrella cover 300 according to the third embodiment of the present invention.
  • Figure 18 is a top perspective view of the umbrella cover 300 according to the third embodiment of the present invention.
  • Fig. 19 is an enlarged schematic view showing a portion G of the umbrella cover 300 according to the third embodiment of the present invention.
  • FIG. 20 is a perspective view of an umbrella cover 400 according to Embodiment 4 of the present invention.
  • Figure 21 is an enlarged schematic view showing a portion H of the umbrella cover 400 according to the fourth embodiment of the present invention.
  • Figure 22 is a bottom perspective view of the umbrella cover 400 of the fourth embodiment of the present invention.
  • Figure 23 is an enlarged schematic view showing a portion I of the umbrella cover 400 of the fourth embodiment of the present invention.
  • Figure 24 is a top plan view showing that the umbrella cover 500 of the fifth embodiment of the present invention is mounted on the shed 50 without opening;
  • Figure 25 is a cross-sectional view of the umbrella cover 500 of the fifth embodiment of the present invention mounted on the shed 50 with the opening not closed, along the K-K plane.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the insulator includes an insulating core 11, and further includes an shed 10 extending outwardly from the outer surface of the insulating core 11 perpendicular to the insulating core 11.
  • the insulator includes at least one shed 10, and the umbrella cover 100 is covered.
  • the umbrella cover 10 divides the umbrella cover 10 into an upper umbrella body 110 and a lower umbrella body 120.
  • the upper umbrella body 110 and the lower umbrella body 120 have a conical shape, which together constitute a receiving cavity 150, and the upper surface of the umbrella skirt 10 and The lower surface can be housed in the receiving cavity 150.
  • the umbrella cover 100 is provided with a mounting hole 170 through which the umbrella cover 100 is passed through the mounting hole 170.
  • the umbrella cover 100 is provided with an opening 160 corresponding to the mounting hole 170.
  • the opening 160 communicates with the mounting hole 170 and the outer edge of the umbrella cover 100, so that the umbrella cover 100 can be mounted on the insulator through the opening and closing of the opening 160.
  • the receiving cavity 150, the opening 160 and the mounting hole 170 are all in communication with each other.
  • the first connecting portion 130 and the second connecting portion 140 are respectively disposed at two ends of the opening 160.
  • the first connecting portion 130 and the second connecting portion 140 can be coupled to each other. When the first connecting portion 130 and the second connecting portion 140 are connected, The umbrella cover 100 is closed in the circumferential direction.
  • the upper umbrella body 110 extends outward from the umbrella tip of the shed 10 to form an elongated portion 180.
  • the first connecting portion 130 and the second connecting portion 140 extend along the upper surface of the elongated portion 180 to communicate the mounting hole 170 and the outer edge of the elongated portion 180.
  • the elongated portion 180 of this embodiment may also be formed by extending outward from the lower umbrella body 120, or may be separately provided.
  • the first connecting portion 130 is located at a portion of the upper umbrella body 110, and the groove 131 is stepped, and the second connecting portion 140 is located on the upper umbrella.
  • a portion of the body 110 is provided with a tab 141 which is formed by the surface of the upper umbrella body 110 extending around the center of the insulating core 11 and mates with the recess 131.
  • the first connecting portion 130 is located at a portion of the lower umbrella body 120, and the groove 132 is stepped.
  • the second connecting portion 140 is located at a portion of the lower umbrella body 120.
  • the tab 142 is formed by the lower umbrella body 120 extending around the center of the insulating core 11 to cooperate with the recess 132.
  • the first connecting portion 130 and the second connecting portion 140 are connected by a latching structure.
  • the latching structure is a protrusion and a through hole structure matched with the same. When the holes are mated, the protrusions slightly protrude from the through holes.
  • the first connecting portion 130 is disposed on the groove 131 of the upper umbrella body 110 and is provided with a protrusion 1311 and a through hole 1312. The protrusion 1311 and the through hole 1312 are distributed on the groove 131 along the radial direction of the umbrella cover 100 in the groove.
  • the protrusion 1311 is disposed near the connection hole 170, and the through hole 1312 is disposed near the outer edge of the umbrella cover 100, and the centers of the protrusion 1311 and the through hole 1312 are located on the same radial straight line.
  • the second connecting portion 140 is disposed on the tab 141 of the upper umbrella body 110.
  • the through hole 1411 and the protrusion 1412 are disposed.
  • the through hole 1411 is disposed corresponding to the position of the protrusion 1311
  • the protrusion 1412 is disposed corresponding to the position of the through hole 1312.
  • the hole 1312 is located on the lower surface of the tab 141 and extends downward along the insulating core 11.
  • the through hole 1411 is closely matched with the diameter of the protrusion 1311, the through hole 1312 and the protrusion 1412, that is, the through hole 1411 is sleeved on the protrusion 1311, and the through hole 1312 is sleeved on the protrusion 1412, so that the groove 131 and the lap 141 connected.
  • the first connecting portion 130 is disposed on the recess 132 of the lower umbrella body 120, and the second connecting portion 140 is disposed on the tab 142 of the lower umbrella body 120.
  • the through hole 1421 is disposed at a position corresponding to the protrusion 1321.
  • the protrusion 1321 The diameter of the through hole 1421 is matched, that is, the through hole 1421 is sleeved on the protrusion 1321, so that the groove 132 and the tab 142 are connected.
  • the first connecting portion 130 is provided with a protrusion 1311 and a through hole 1312 on the upper umbrella body 110, a protrusion 1321 is disposed on the lower umbrella body 110, and the second connecting portion 140 is provided with a through hole 1411 and a protrusion 1412 on the upper umbrella body 110.
  • the through hole 1421 is disposed on the lower umbrella body 110.
  • the first connecting portion 130 may be provided with a protrusion
  • the second connecting portion 140 is provided with a corresponding through hole.
  • the number of the protrusion and the through hole is not limited to the above.
  • the three pairs, that is, the number and size of the projections and through holes on the first connecting portion 130 and the second connecting portion 140 can be adjusted according to the size of the actual umbrella cover.
  • the protrusions have the same size and are all cylindrical protrusions.
  • the shape is not limited to the cylindrical protrusions, or the protrusions 1311, the protrusions 1321 and the protrusions 1412 may be different from each other.
  • the umbrella cover 100 is continuously continuous at the joining portion, and the thickness of the joined portion coincides with other portions of the umbrella cover 100.
  • the protrusions 1311, the protrusions 1321 and the protrusions 1421 protrude slightly from the surface of the umbrella cover 100 compared to the corresponding through holes.
  • connection structure is integrally provided with the umbrella cover 100, and the umbrella cover 100 can be sleeved on the umbrella skirt 10 without using another connection structure, and can be joined in the circumferential direction. No need to open the mold to manufacture additional joints, which is easy to manufacture and process, reducing manufacturing costs.
  • the protrusion When the protrusion is coupled with the through hole, the protrusion protrudes slightly from the surface of the umbrella sleeve to a certain extent, resisting the tension at the opening to a certain extent, and abutting the through hole in the horizontal direction to ensure the reliability of the connection between the protrusion and the through hole.
  • the lengthening portion 180 can further increase the creepage distance of the insulator.
  • the protrusions may also be flush with the surface of the umbrella cover, and the first connecting portion and the second connecting portion may also overlap each other to some extent, which is slightly different from the thickness of other portions of the umbrella cover.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the umbrella cover 200 of the present embodiment has substantially the same structure as the umbrella cover 100 of the first embodiment, wherein the upper cover body 210 and the lower umbrella body 220 of the umbrella cover 200 are not completely covered.
  • the upper umbrella body 210 and the lower umbrella body 220 are separately arranged to form a receiving cavity for covering the shed skirt 20.
  • the mounting hole of the umbrella cover 200 is along the surface of the shed 20 to the boundary line between the insulating core 21 and the shed 20, and the distance between the insulating core 21 and the tip of the shed 20 along the surface of the shed 20 is one third. .
  • the upper umbrella body 210 and the lower umbrella body 220 are combined into a receiving cavity by the connection structure of the dovetail groove.
  • the lower surface of the upper umbrella body 210 is provided with a concave dovetail groove 211 around the insulating core 21, and the concave dovetail groove 211 is for connecting with the lower umbrella body 220.
  • the lower umbrella body 220 has an annular shape, and a hole is formed in the middle portion for the insulating core 21 to pass through.
  • the outer edge of the lower umbrella body 220 is provided with a protrusion 222 corresponding to the concave dovetail groove 211, and the protrusion 222 surrounds the insulating core 21 in the circumferential direction.
  • the protrusion 222 and the concave dovetail groove 211 can be joined together to form a receiving cavity for receiving the cavity shed 20 .
  • the upper body 210 and the lower body can also adopt other assembling methods such as buckles and locks.
  • the umbrella cover 200 of the present embodiment converts the complicated structure into a manner in which the upper umbrella body 210 and the lower umbrella body 220 are joined together, so that the manufacture and processing of the umbrella cover 200 are further simplified, and the manufacturing cost is reduced.
  • the umbrella cover 200 does not completely cover the upper surface and the lower surface of the shed 20, and can achieve the effect of preventing rain flash and anti-pollution, reducing material consumption and reducing cost.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the umbrella cover 300 of the present embodiment has substantially the same structure as the umbrella cover 100 of the first embodiment, wherein the first connection portion 330, the second connection portion 340, and the umbrella cover are different.
  • the first connecting portion 130 and the second connecting portion 140 of 100 are different.
  • the first connecting portion 330 and the second connecting portion 340 are located at the same portion of the upper umbrella body 310 as the umbrella cover 100, the first connecting portion 330 is located at a portion of the lower umbrella body 320, and the tab 331 is surrounded by the lower umbrella body 320.
  • the insulating core is formed to extend in the circumferential direction of the umbrella sleeve 300, and the second connecting portion 340 is located at a portion of the lower umbrella body 320 where the connecting portion is not provided, that is, the first connecting portion 330 and the second connecting portion 340 have the first connecting portion 330 in the lower umbrella body.
  • the tab 331 provided on the 320 and the second connecting portion 340 are formed by splicing the tabs 341 provided on the upper umbrella body 310.
  • connection manner of the first connecting portion 330 and the second connecting portion 340 in the lower umbrella body 320 is changed into a form of direct strap connection, so that the manufacturing and processing of the umbrella cover 300 at the joint portion is simplified. Reduced manufacturing costs.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the umbrella cover 400 of the present embodiment has substantially the same structure as the umbrella cover 100 of the first embodiment, wherein the difference between the first connecting portion 430 and the second connecting portion 440 is different from the umbrella cover.
  • the first connecting portion 130 and the second connecting portion 140 of 100 are substantially the same structures as the umbrella cover 100 of the first embodiment, wherein the difference between the first connecting portion 430 and the second connecting portion 440 is different from the umbrella cover.
  • the first connecting portion 430 is located at a portion of the upper umbrella body 410.
  • the groove 431 has a length extending radially along the umbrella sleeve 400 that is smaller than the length of the umbrella sleeve 400.
  • the second connecting portion 440 is located at a portion of the upper umbrella body 410.
  • the tab 441 is engaged with the groove 431, and the tab 441 has the same structure as the tab 141 of the umbrella cover 100.
  • the first connecting portion 430 is located at a portion of the lower umbrella body 420, and the groove 432 extends along the radial direction of the umbrella cover 400 to the elongated portion 480.
  • the length of the groove 432 along the radial direction of the umbrella cover 400 is smaller than the length of the umbrella cover 400. .
  • the second connecting portion 440 is located at a portion of the lower umbrella body 420 and is provided with a tab 442 that cooperates with the recess 432.
  • the tab 441 extends in the radial direction of the umbrella cover 400 to the outer edge of the elongated portion 480. That is, the second connecting portion 440 formed by the tab 441 and the tab 442, and the first connecting portion 430 formed by the recess 431 and the recess 432 are closed at the outer edge of the umbrella cover 400, and open at the sleeve mounting hole 470.
  • the V-shaped connecting portion, the first connecting portion 430 and the second connecting portion 440 are fitted to each other in the weft direction of the umbrella cover 400, so that the umbrella cover 400 is closed in the circumferential direction.
  • the protrusion 431 and the protrusion 1312 are disposed on the groove 431 along the radial direction of the umbrella cover 400, and the through hole 4411 and the through hole 4412 corresponding to the protrusion 4311 and the protrusion 1312 are disposed on the rib 441.
  • a protrusion 4321 and a protrusion 4322 are disposed on the groove 432 in the radial direction of the umbrella cover 400, and the through hole 4321 and the through hole 4322 corresponding to the protrusion 4321 and the protrusion 4322 are disposed on the tab 442.
  • the number of the grooves 431, the rib 441 and the groove 432, the protrusions on the slab 442 and the number of the through holes can also be adjusted according to actual needs, and the protrusions are arranged on the grooves.
  • the hole is arranged on the lap, and the protrusion will naturally protrude to the outside of the umbrella sleeve when connected, so as to avoid the contact with the shed and affect the connection effect of the umbrella sleeve.
  • the umbrella cover adopts a double V-shaped connecting structure to increase the area of the connecting portion, so that the connection is more firm.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the umbrella cover 500 of the present embodiment has substantially the same structure as the umbrella cover 100 of the first embodiment, wherein the umbrella cover 500 is provided with a sleeve 591 and a sleeve 592 at the mounting hole 570.
  • the sleeve 591 and the sleeve 592 extend outward along the axial direction of the insulating core 51 away from the surface of the umbrella cover 50.
  • the inner diameter of the sleeve 591 and the sleeve 592 is adapted to the outer diameter of the insulating core to closely fit the outer wall of the insulating core 51.
  • the sleeve 591 extends upward along the axial direction of the insulating core 51 away from the upper surface of the upper umbrella body 510, and the sleeve 592 extends downward along the axial direction of the insulating core 51 away from the lower surface of the lower umbrella body 520.
  • the umbrella cover 500 in this embodiment is provided with a sleeve covering the outer wall of the insulating core, and the sleeve is tightly connected with the insulating core to strengthen the connection strength between the umbrella sleeve and the insulating core, thereby further ensuring the tightness of the umbrella cover covering the umbrella skirt. Sex and reliability.
  • the diameter and height of the sleeve can be designed according to the actual situation, and the umbrella sleeve can also be provided with only a one-way sleeve or no sleeve.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Connection Or Junction Boxes (AREA)
  • Details Of Aerials (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Insulating Bodies (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

一种伞套(100)，包覆在绝缘子外，绝缘子包括至少一片伞裙(10)，该伞套(100)包括收容腔(150)，收容腔(150)使伞裙(10)的上表面与下表面收容于收容腔(150)内，伞套(100)设置有供绝缘子穿设的安装孔(170)以及与安装孔(170)对应的开口(160)，开口(160)连通安装孔(170)与伞套(100)的外缘，安装孔(170)与收容腔(150)连通，开口(160)的两端分别设置相互配合的第一连接部(130)和第二连接部(140)，第一连接部(130)与第二连接部(140)连接时，使伞套(100)在周向上闭合。该伞套(100)能够收容整个单片伞裙(10)，无需额外的连接部件即可拼合安装于伞裙(10)上，便捷高效，防污闪雨闪效果佳。

Description

一种伞套 技术领域
本发明涉及一种输电绝缘设备领域，具体是一种伞套。
背景技术
目前，绝缘子在电力行业已得到广泛应用。早期的绝缘子通常为瓷质绝缘子，随着大气环境恶化，空气污秽等级越来越高，瓷绝缘子在积污情况下不断发生污闪事故，给电网造成巨大的损失，严重影响了电网的平稳运行。同时，由于大雨及覆冰等问题，瓷绝缘子的雨闪、冰闪等事故也趋于频发。
传统的解决方案有在瓷绝缘子表面喷涂RTV/PRTV涂料的方法，此方法不仅成本高，而且寿命有限，无法从根本上保证长期运行。现有技术采用单片复合材质伞套覆盖于瓷绝缘子上表面以解决上述问题，但单片伞套与瓷绝缘子连接效果差，伞裙边缘易于发生塌陷，防污闪雨闪效果不佳。
发明内容
针对现有技术的不足，本发明的目的之一是提供一种伞套，该伞套能够收容整个单片伞裙，无需额外的连接部件即可拼合安装于伞裙上，便捷高效，防污闪雨闪效果佳。
为实现上述发明目的，本发明所采用的技术手段如下：一种伞套，包覆在绝缘子外，绝缘子包括至少一片伞裙，该伞套包括收容腔，收容腔使伞裙的上表面与下表面收容于收容腔内，该伞套设置有供绝缘子穿设的安装孔以及与安装孔对应的开口，开口连通安装孔与伞套的外缘，安装孔与收容腔连通，开口的两端分别设置相互配合的第一连接部和第二连接部，第一连接部与第二连接部连接时，使该伞套在周向上闭合。
上述伞套，采用收容腔将伞裙整体收容在伞套内，增大伞套与伞裙的连接面积，连接更为可靠牢固，同时套设在伞裙上的伞套直接拼合第一连接部与第二连接部，无需额外的连接部件，即可实现伞套在周向上的闭合，安装便捷高效，生产上无需开模生产连接部件，节约成本。
优选地，上述伞套由上述收容腔收容的伞裙的伞尖处划分为上伞体和 下伞体，上述第一连接部位于上伞体的部分设置第一凹槽，上述第二连接部位于上伞体的部分设置与第一凹槽相对应的第一搭片。
优选地，上述第一连接部位于下伞体的部分设置第二凹槽，上述第二连接部位于下伞体的部分设置与第二凹槽相对应的第二搭片。
上述第一连接部和第二连接部通过凹槽与搭片的结构连接，具有较大的接触面积，保证了连接的可靠性。
上述第一凹槽与所述第一搭片连接时，所述第二连接部的上表面与所述上伞体的表面齐平，所述第二凹槽和所述第二搭片连接时，所述第二连接部的下表面与所述下伞体的表面齐平。
第一连接部与第二连接部连接构成的连接面分别与上述伞套的上、下表面齐平，使得伞套形成连续的上、下表面，提高防污闪、雨闪的效果。
优选地，上述第一连接部和上述第二连接部通过锁扣结构相连。
优选地，上述锁扣结构为位于上述第一连接部和上述第二连接部上的凸起和通孔，凸起和通孔的直径紧配。
上述锁扣结构为凸起与通孔的配合，进一步地凸起的高度可以略高出通孔，使得连接更为牢靠紧密。
优选地，上述第一连接部位于上述上伞体的部分设置至少一个第一凸起，上述第二连接部位于上述上伞体的部分设置与第一凸起相配合的至少一个第一通孔。
优选地，上述第一连接部位于上述下伞体的部分设置至少一个第二凸起，上述第二连接部位于上述下伞体的部分设置与第二凸起相配合的至少一个第二通孔。
上述第一连接部与第二连接部上凸起与通孔的设置根据实际伞套的尺寸进行数量和排布的设计，灵活便捷。
优选地，上述伞套由伞裙的伞尖处向外延伸形成加长部，上述第一连接部和上述第二连接部沿加长部的上表面延伸。
上述加长部能够有效增加爬电距离，进一步提升上述伞套防污闪、防雨闪性能。
优选地，绝缘子包括绝缘芯，上述安装孔的边缘沿伞裙表面到伞裙的 伞尖的距离，小于伞裙的伞尖到绝缘芯与伞裙表面交界处沿伞裙表面的距离。
安装孔的边缘沿伞裙表面到伞裙的伞尖的距离，小于伞裙的伞尖到绝缘芯与伞裙表面交界处沿伞裙表面的距离，即上述收容腔可以完全包覆伞裙的上表面和下表面，也可以上述收容腔只包覆部分的伞裙的上表面和下表面，在达到防污闪、防雨闪的效果的同时节约成本，方便伞套套设在绝缘芯上。
优选地，上述收容腔由分体设置的上述上伞体和上述下伞体拼合而成。
上伞体与下伞体分体设置，安装上述伞套时更为方便，并且将整个伞套分为两个独立的相对独立的部分，简化结构，便于开模生产。
优选地，绝缘子包括绝缘芯，上述伞套在上述安装孔处设置套筒，套筒沿绝缘芯轴向背离上述伞套的表面向外延伸，套筒套设在绝缘芯上。
套筒沿绝缘芯轴向背离伞套表面向外延伸，并且包覆在绝缘芯上，进一步增强伞套与绝缘子连接的可靠性。
附图说明
图1是本发明实施例一的伞套100安装在伞裙10上开口未闭合的立体示意图；
图2是本发明实施例一的伞套100的立体示意图；
图3是本发明实施例一的伞套100安装在伞裙10上开口未闭合的俯视示意图；
图4是本发明实施例一的伞套100安装在伞裙10上开口未闭合的沿J-J面的截面示意图；
图5是本发明实施例一的伞套100安装在伞裙10上开口未闭合的局部A的放大示意图；
图6是本发明实施例一的伞套100安装在伞裙10上开口未闭合的仰视立体示意图；
图7是本发明实施例一的伞套100的局部B的放大示意图。
图8是本发明实施例一的伞套100安装在伞裙10上开口闭合的立体示意图；
图9是本发明实施例一的伞套100安装在伞裙10上开口闭合的仰视立体示意图。
图10是本发明实施例二的伞套200安装在伞裙20上开口未闭合的立体示意图；
图11是本发明实施例二的伞套200安装在伞裙20上开口未闭合的仰视立体示意图；
图12是本发明实施例二的伞套200安装在伞裙20上开口未闭合的局部C的放大示意图；
图13是本发明实施例二的上伞体210和下伞体220的爆炸示意图；
图14是本发明实施例二的上伞体210的局部D的放大示意图；
图15是本发明实施例二的下伞体220的局部E的放大示意图。
图16是本发明实施例三的伞套300的立体示意图；
图17是本发明实施例三的伞套300的局部F的放大示意图；
图18是本发明实施例三的伞套300的俯视立体示意图；
图19是本发明实施例三的伞套300的局部G的放大示意图。
图20是本发明实施例四的伞套400的立体示意图；
图21是本发明实施例四的伞套400的局部H的放大示意图；
图22是本发明实施例四的伞套400的仰视立体示意图；
图23是本发明实施例四的伞套400的局部I的放大示意图。
图24是本发明实施例五的伞套500安装在伞裙50上开口未闭合的俯视示意图；
图25是本发明实施例五的伞套500安装在伞裙50上开口未闭合的沿K-K面的截面示意图。
具体实施方式
根据要求，这里将披露本发明的具体实施方式。然而，应当理解的是，这里所披露的实施方式仅仅是本发明的典型例子而已，其可体现为各种形式。因此，这里披露的具体细节不被认为是限制性的，而仅仅是作为权利要求的基础以及作为用于教导本领域技术人员以实际中任何恰当的方式不同地应用本发明的代表性的基础，包括采用这里所披露的各种特征并结 合这里可能没有明确披露的特征。
实施例一：
如图1至图4所示，绝缘子包括绝缘芯11，还包括在绝缘芯11外表面沿垂直于绝缘芯11向外延伸的伞裙10，绝缘子包括至少一片伞裙10，伞套100包覆在伞裙100的外表面。伞裙10的伞尖处将伞套10划分为上伞体110和下伞体120，上伞体110和下伞体120呈圆锥状，共同构成收容腔150，将伞裙10的上表面和下表面均能够收容在收容腔150内。伞套100设置有安装孔170，伞套100通过安装孔170穿设在绝缘子上。
伞套100设置有与安装孔170对应的开口160，开口160与安装孔170和伞套100的外缘相连通，使伞套100能够通过该开口160的打开和闭合安装在绝缘子上。收容腔150、开口160和安装孔170均互相连通。开口160的两端分别设置第一连接部130和第二连接部140，第一连接部130和第二连接部140能够相互配合连接，当第一连接部130和第二连接部140连接时，伞套100在周向上闭合。
上伞体110由伞裙10的伞尖向外延伸形成加长部180，第一连接部130和第二连接部140沿加长部180的上表面延伸，连通安装孔170和加长部180的外缘。本实施例的加长部180也可以是由下伞体120向外延伸形成，也可以是单独设置。
如图5所示，为伞套100的A部分的局部放大图，第一连接部130位于上伞体110的部分设置凹槽131，凹槽131呈台阶状，第二连接部140位于上伞体110的部分设置搭片141，搭片141由上伞体110的表面围绕绝缘芯11的中心延伸形成，与凹槽131互相配合。当凹槽131与搭片141配合连接时，伞套100在周向上闭合，连接部位的厚度与伞套100的厚度相同，上伞体表面在开口160的连接处能平滑过渡。
如图5和图6所示，第一连接部130位于下伞体120的部分设置凹槽132，凹槽132为台阶状，第二连接部140位于下伞体120的部分设置搭片142，搭片142由下伞体120围绕绝缘芯11的中心延伸形成，与凹槽132互相配合。当凹槽132与搭片142配合连接时，伞套100在周向上闭合，连接部位的厚度与伞套100的厚度相同，下伞体表面在开口160的连 接处能平滑过渡。
如图5和图7所示，第一连接部130和第二连接部140通过锁扣结构相连接，具体地，锁扣结构为凸起和与之配合的通孔结构，当凸起与通孔配合连接时，凸起略伸出通孔。第一连接部130位于上伞体110的凹槽131上设置了一个凸起1311和一个通孔1312，凸起1311和通孔1312在凹槽131上沿伞套100的径向分布在凹槽131的两端，凸起1311靠近连接孔170设置，通孔1312靠近伞套100外缘设置，凸起1311和通孔1312的中心位于同一条径向直线上。第二连接部140位于上伞体110的搭片141设置了通孔1411和凸起1412，通孔1411与凸起1311的位置对应设置，凸起1412与通孔1312的位置对应设置，且通孔1312位于搭片141的下表面，沿绝缘芯11向下延伸。通孔1411与凸起1311、通孔1312和凸起1412的直径相紧配，即通孔1411套设于凸起1311，通孔1312套设于凸起1412上，从而凹槽131和搭片141相连。
第一连接部130位于下伞体120的凹槽132上设置凸起1321，第二连接部140位于下伞体120的搭片142上对应于凸起1321的位置设置通孔1421，凸起1321与通孔1421的直径相匹配，即通孔1421套设于凸起1321，从而凹槽132和搭片142相连。
上述第一连接部130在上伞体110上设置凸起1311和通孔1312，在下伞体110上设置凸起1321，第二连接部140在上伞体110上设置通孔1411和凸起1412，在下伞体110上设置通孔1421，当然也可以在第一连接部130上均设置凸起，第二连接部140上设置相应的通孔，凸起和通孔的对数不限于上述的三对，即第一连接部130和第二连接部140上的凸起和通孔的数量、尺寸可以根据实际伞套的尺寸进行调整。上述凸起尺寸相同，均为圆柱形凸起，当然形状大小不限于圆柱形凸起，或者凸起1311、凸起1321和凸起1412相互之间也可各不相同。
如图8和图9所示，第一连接部130和第二连接部140拼合时，伞套100在拼合部位过渡连续，且拼合部位的厚度与伞套100的其他部位一致。其中凸起1311、凸起1321和凸起1421相较于与之对应的通孔略微凸出于伞套100的表面。
本实施例的伞套100，将连接结构与伞套100一体设置，无需采用另外的连接结构即可将伞套100套设在伞裙10上，在周向上拼合。无需开模制造额外的连接部，制造、加工简便，降低了制造成本。凸起与通孔配合连接时凸起相较伞套表面略伸出通孔，一定程度抵抗开口处的张力，在水平方向上抵住通孔，保证凸起与通孔连接的可靠性。得其中加长部180能进一步增加绝缘子的爬电距离。为配合实际需求，凸起也可以恰好与伞套表面齐平，第一连接部与第二连接部也可以在一定程度上相互重叠拼合，与伞套其他部位的厚度略微不同。
实施例二：
如图10至图12所示，本实施例的伞套200与实施例一的伞套100结构大致相同，其中不同之处在于伞套200的上伞体210和下伞体220均未完全覆盖于伞裙20的上表面和下表面，同时上伞体210和下伞体220分体设置，拼合成包覆伞裙20收容腔。具体地，伞套200的安装孔沿伞裙20表面到绝缘芯21与伞裙20的交界线的距离为绝缘芯21到伞裙20的伞尖沿伞裙20表面的距离的三分之一。
如图13至图15所示，本实施例中上伞体210和下伞体220通过燕尾槽的连接结构拼合成收容腔。上伞体210的下表面围绕绝缘芯21设置凹型燕尾槽211，凹型燕尾槽211用于与下伞体220连接。下伞体220呈圆环状，中部设置供绝缘芯21穿设的孔，下伞体220的外缘设置与凹型燕尾槽211相对应的凸起222，凸起222围绕绝缘芯21在周向上环绕设置，凸起222和凹型燕尾槽211能够相互拼合，构成收容腔伞裙20的收容腔。当然上伞体210和下伞体也可以采用如搭扣、锁扣等其他拼合方式。
本实施例的伞套200，将复杂的结构转换为上伞体210和下伞体220拼合的方式，使伞套200的制造、加工进一步简化，降低了制造成本。伞套200均未完全覆盖于伞裙20的上表面和下表面，能够达到防雨闪防污闪的效果的同时，减少材料消耗，降低成本。
实施例三：
如图16至图19所示，本实施例的伞套300与实施例一的伞套100结构大致相同，其中不同之处在于第一连接部330、第二连接部340与伞套 100中的第一连接部130、第二连接部140不同。
第一连接部330和第二连接部340位于上伞体310的部分与伞套100相同，第一连接部330位于下伞体320的部分设置搭片331，搭片331由下伞体320围绕绝缘芯在伞套300周向上延伸形成，第二连接部340位于下伞体320的部分未设置连接部分，即第一连接部330和第二连接部340是有第一连接部330在下伞体320上设置的搭片331和第二连接部340在上伞体310上设置的搭片341拼合而成。
本实施例的伞套300，将第一连接部330和第二连接部340位于下伞体320的连接方式变为直接搭片连接的形式，使伞套300在连接部位的制造、加工简化，降低了制造成本。
实施例四：
如图20至图23所示，本实施例的伞套400与实施例一的伞套100结构大致相同，其中不同之处在于第一连接部430、第二连接部440的结构不同于伞套100的第一连接部130和第二连接部140。
第一连接部430位于上伞体410的部分设置凹槽431，凹槽431沿伞套400径向延伸的长度小于伞套400的长度，第二连接部440位于上伞体410的部分设置与凹槽431配合的搭片441，搭片441结构与伞套100的搭片141相同。第一连接部430位于下伞体420的部分设置凹槽432，凹槽432沿伞套400的径向延伸至加长部480，凹槽432沿伞套400径向的长度小于伞套400的长度。第二连接部440位于下伞体420的部分设置与凹槽432配合的搭片442，搭片441沿伞套400的径向延伸至加长部480的外缘。即搭片441和搭片442构成的第二连接部440，凹槽431和凹槽432构成的第一连接部430，均为在伞套400外缘处封闭，在伞套安装孔470处开口的V字形连接部，第一连接部430和第二连接部440沿伞套400纬线方向上互相嵌合连接，使得伞套400周向上封闭。
本实施例中，凹槽431上沿伞套400的径向设置凸起4311和凸起1312，搭片441上设置与凸起4311和凸起1312对应的通孔4411和通孔4412。凹槽432上沿伞套400的径向设置凸起4321和凸起4322，搭片442上设置与凸起4321和凸起4322对应的通孔4321和通孔4322。
本实施例中，凹槽431、搭片441和凹槽432、搭片442上的凸起和通孔的对数也可以根据实际需求进行相应的调整，将凸起设置于凹槽上，通孔设置于搭片上，连接时凸起会自然向伞套外部凸出，避免接触伞裙而对伞套连接效果产生影响。伞套采用双V字型的连接结构增大连接部位的面积，使得连接更为牢固。
实施例五：
如图24至图25所示，本实施例的伞套500与实施例一的伞套100结构基本相同，其中不同之处在于伞套500在安装孔570处设置套筒591和套筒592，套筒591和套筒592沿着绝缘芯51的轴向远离伞套50的表面向外延伸。套筒591和套筒592的内径与绝缘芯的外径相适配，紧密贴合于绝缘芯51的外壁。套筒591沿着绝缘芯51的轴向远离上伞体510的上表面向上延伸，套筒592沿着绝缘芯51的轴向远离下伞体520的下表面向下延伸。
本实施例中的伞套500设置有包覆在绝缘芯外壁的套筒，套筒与绝缘芯紧密连接，加强伞套与绝缘芯的连接强度，从而进一步保证了伞套包覆伞裙的紧密性和可靠性。套筒的直径和高度可根据实际情况设计，伞套也可以只设置单向套筒或者不设置套筒。
本发明的技术内容及技术特点已揭示如上，然而可以理解，在本发明的创作思想下，本领域的技术人员可以对上述结构和材料作各种变化和改进，包括这里单独披露或要求保护的技术特征的组合，明显地包括这些特征的其它组合。这些变形和/或组合均落入本发明所涉及的技术领域内，并落入本发明权利要求的保护范围。

Claims (12)

  1. 一种伞套，包覆在绝缘子外，所述绝缘子包括至少一片伞裙，所述伞套包括收容腔，所述收容腔使所述伞裙的上表面与下表面收容于所述收容腔内，所述伞套设置有供所述绝缘子穿设的安装孔以及与所述安装孔对应的开口，所述开口连通所述安装孔与所述伞套的外缘，所述安装孔与所述收容腔连通，所述开口的两端分别设置相互配合的第一连接部和第二连接部，所述第一连接部与所述第二连接部连接时，使所述伞套在周向上闭合。
  2. 如权利要求1所述的伞套，其特征在于：所述伞套由所述收容腔收容的伞裙的伞尖处划分为上伞体和下伞体，所述第一连接部位于所述上伞体的部分设置第一凹槽，所述第二连接部位于所述上伞体的部分设置与所述第一凹槽相对应的第一搭片。
  3. 如权利要求2所述的伞套，其特征在于：所述第一连接部位于所述下伞体的部分设置第二凹槽，所述第二连接部位于所述下伞体的部分设置与所述第二凹槽相对应的第二搭片。
  4. 如权利要求3所述的伞套，其特征在于：所述第一凹槽与所述第一搭片连接时，所述第二连接部的上表面与所述上伞体的表面齐平，所述第二凹槽和所述第二搭片连接时，所述第二连接部的下表面与所述下伞体的表面齐平。
  5. 如权利要求2所述的伞套，其特征在于：所述第一连接部和所述第二连接部通过锁扣结构相连。
  6. 如权利要求4所述的伞套，其特征在于：所述锁扣结构为位于所述第一连接部和所述第二连接部上的凸起和通孔，所述凸起和所述通孔的直径紧配。
  7. 如权利要求5所述的伞套，其特征在于：所述第一连接部位于所述上伞体的部分设置至少一个第一凸起，所述第二连接部位于所述上伞体的部分设置与所述第一凸起相配合的至少一个第一通孔。
  8. 如权利要求5所述的伞套，其特征在于：所述第一连接部位于所述下伞体的部分设置至少一个第二凸起，所述第二连接部位于所述下伞体的 部分设置与所述第二凸起相配合的至少一个第二通孔。
  9. 如权利要求2所述的伞套，其特征在于：所述伞套由所述伞裙的伞尖处向外延伸形成加长部，所述第一连接部和所述第二连接部沿所述加长部的上表面延伸。
  10. 如权利要求1所述的伞套，其特征在于：所述绝缘子包括绝缘芯，所述安装孔的边缘沿所述伞裙表面到所述伞裙的伞尖的距离，小于所述伞裙的伞尖到所述绝缘芯与所述伞裙表面交界处沿所述伞裙表面的距离。
  11. 如权利要求2所述的伞套，其特征在于：所述收容腔由分体设置的所述上伞体和所述下伞体拼合而成。
  12. 如权利要求1所述的伞套，其特征在于：所述绝缘子包括绝缘芯，所述伞套在所述安装孔处设置套筒，所述套筒沿所述绝缘芯的轴向背离所述伞套的表面向外延伸，所述套筒套设在所述绝缘芯上。
PCT/CN2017/114623 2017-08-31 2017-12-05 一种伞套 WO2019041619A1 (zh)

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