WO2019000712A1 - 楔形耐张线夹 - Google Patents

楔形耐张线夹 Download PDF

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Publication number
WO2019000712A1
WO2019000712A1 PCT/CN2017/106634 CN2017106634W WO2019000712A1 WO 2019000712 A1 WO2019000712 A1 WO 2019000712A1 CN 2017106634 W CN2017106634 W CN 2017106634W WO 2019000712 A1 WO2019000712 A1 WO 2019000712A1
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WIPO (PCT)
Prior art keywords
wedge
drawer
shaped
wedge block
longitudinal section
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PCT/CN2017/106634
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English (en)
French (fr)
Inventor
汪晶晶
冒新国
吕兴龙
孔德春
杨阳
王乐乐
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江东金具设备有限公司
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Application filed by 江东金具设备有限公司 filed Critical 江东金具设备有限公司
Publication of WO2019000712A1 publication Critical patent/WO2019000712A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire

Definitions

  • the invention relates to a tensile clamp, in particular to a wedge-shaped tensile clamp.
  • the present invention provides a wedge-shaped tensile clamp, which has a simple structure and strong versatility, and is suitable for various voltage grade lines.
  • a wedge-shaped tensile clamp comprising a left casing, a right casing, an upper drawer, a lower drawer, an upper wedge, a lower wedge and two hanging plates, the left casing,
  • the right casing, the upper drawer and the lower drawer are assembled into a whole and a wedge-shaped hole having a rectangular cross section is formed inside, and a longitudinal cross-sectional area of the front end of the wedge-shaped hole is smaller than a longitudinal cross-sectional area of the trailing end, the upper wedge and the lower wedge
  • the block is placed in the wedge hole and disposed oppositely, and the upper surface of the upper wedge and the lower surface of the lower wedge are respectively in parallel with the inner wedge surface of the assembled upper and lower twitch, and the lower wedge is placed in the lower surface.
  • the upper surfaces of the face and the lower wedge are respectively provided with arcuate grooves, and the arc grooves form a wire groove, and the end of the lower wedge is provided with a circular arc groove, and the end of the circular groove is provided
  • the other ends of the two hanging plates are provided with ear holes, and are connected to the insulators by connecting fittings.
  • the side wall of the hole in the binaural structure is provided with a circlip.
  • the ends of the upper wedge and the lower wedge are respectively provided with a limiting groove and a protrusion, and the limiting groove and the convex block of the upper wedge respectively cooperate with the convex block and the limiting groove of the lower wedge to make the upper wedge and The lower wedge does not slide relative to each other.
  • the left casing, the right casing, the upper drawer and the lower drawer are assembled into a whole body, and the longitudinal section thereof is an ellipse with a rectangular hole in the middle.
  • the invention has the following advantages: 1.
  • the shape is round, the structure is simple, the versatility is strong, and the utility model can be repeatedly used for multiple voltage level lines. 2.
  • the hinged link structure formed by the pin shaft between the tail end of the casing and the hanging plate avoids direct wear of different materials; the through-hole design of the binaural structure at the end of the casing increases the heat dissipation area.
  • 3. can be installed without cutting the wire.
  • the jumper can be integrated with the main wire, and there is no contact resistance. 4, the line construction is convenient and fast, no need for online crimping construction, no need to worry about loose drainage, the installation efficiency is more than 5 times that of conventional compression clamps. 5.
  • the grip strength of the wires of 900mm 2 and below can reach 95% of the rated breaking force.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1;
  • Figure 5 is a schematic structural view of a lower wedge
  • Figure 6 is a connection diagram of the upper wedge and the lower wedge
  • the wedge-shaped tensile clamp includes a left casing 1, a right casing 2, an upper drawer 3, a lower drawer 4, an upper wedge 5, a lower wedge 6 and two hanging plates. 7.
  • the left casing 1, the right casing 2, the upper drawer 3 and the lower drawer 4 are assembled into a whole, and the longitudinal section thereof is an ellipse with a rectangular hole in the middle, that is, a wedge-shaped hole having a rectangular longitudinal section is formed inside, and the wedge-shaped hole is formed.
  • the longitudinal cross-sectional area of the front end is smaller than the longitudinal cross-sectional area of the trailing end, and the upper wedge 5 and the lower wedge 6 are placed in the wedge-shaped hole and disposed oppositely, and the upper surface of the upper wedge 5 and the lower surface of the lower wedge 6 are respectively assembled
  • the inner wedge surface of the upper drawer 3 and the lower drawer 4 are in parallel, and the lower surface of the upper wedge 5 and the upper surface of the lower wedge 6 are provided with arcuate grooves, and the wire grooves 8 are formed between the arc grooves.
  • the tail end of the lower wedge 6 is added on the upper wedge to the arc jump groove 9 for the wire jumper, and the end of the arc groove 9 is fixed to the wire through the gland 10, so that the wire can be cut without cutting the wire.
  • the jumper can be integrated with the main line, there is no contact resistance.
  • the tail ends of the left casing 1 and the right casing 2 are respectively provided with a binaural structure 11 , and one ends of the two hanging plates 7 are respectively inserted into the corresponding binaural structures 11 , and are fixed by the pin 12 to form a hinge structure, thereby avoiding direct use of different materials.
  • the wear and tear, the through-hole design of the binaural structure increases the heat dissipation area.
  • the other end of the two hanging plates 7 is provided with an ear hole 13 which can be connected to the insulator by a connecting fitting.
  • the side wall of the hole in the binaural structure 11 is provided with a circlip 14 to prevent the pin from falling out.
  • the end of the upper wedge 5 and the lower wedge 6 are respectively provided with a limiting slot 15 and a protrusion 19, and the limiting slot and the protrusion of the upper wedge respectively cooperate with the protrusion of the lower wedge and the limiting slot to make the upper wedge and The lower wedge does not slide relative to each other, ensuring that its relative position does not change.
  • the installation method is as follows: the left casing 1, the right casing 2, the upper drawer 3 and the lower drawer 4 are integrally formed, and the outer shape is an elliptical table, and the inside is a rectangular wedge-shaped hole, wherein the upper twitch (or the lower twitch) and The left casing 1 and the right casing 2 are riveted together, and the lower drawer (or upper drawer) can be freely loaded and unloaded, and the lower drawer (or upper drawer) is taken out, and the wire is placed into the upper wedge and the lower wedge.
  • tie the nylon cable tie 16 into the assembly of the casing and the twitch tie the nylon cable tie 16 into the assembly of the casing and the twitch, and insert the upper and lower drawers (or the upper drawer) to the limit of the outer casing.
  • the wire is bent along the circular arc groove of the lower wedge so that it fits the wire groove, the gland is covered, and the fixing bolt group 17 is used for fastening. After the upper and lower wedges and the wire are pushed into the wedge-shaped holes of the assembly, the connecting bolt set 18 is connected to the ear holes of the two hanging plates of the tensile clamp.

Landscapes

  • Clamps And Clips (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

本发明公开了楔形耐张线夹，包括左壳体、右壳体、上抽匣、下抽匣、上楔块、下楔块和挂板，左右壳体、上下抽匣组装成整体并在内部形成纵截面为矩形的楔形孔，楔形孔前端的纵截面面积小于尾端的纵截面面积，上楔块和下楔块置于楔形孔内且相对设置，上楔块的上表面和下楔块的下表面分别与上抽匣和下抽匣的内侧楔形面平行贴合，上楔块的下表面和下楔块的上表面均设有弧形凹槽，弧形凹槽之间形成导线槽，下楔块的尾端设有圆弧槽，圆弧槽的末端设有固定导线的压盖，左壳体和右壳体的尾端各设有双耳结构，挂板的一端分别插入相应的双耳结构中，通过销轴固定。该线夹外形圆润、结构简单，通用性强，可重复多次使用，适合各种电压等级线路。

Description

楔形耐张线夹 技术领域
本发明涉及耐张线夹，具体是一种楔形耐张线夹。
背景技术
目前国内输电线路上使用的大部分是压缩式耐张线夹，楔形耐张线夹仅使用于农配网上。压缩式耐张线夹施工繁琐，需要专用液压泵及液压机，对施工人员的操作水平要求非常高，压接出现些许偏差即会导致线夹对导线握力达不到标准要求。现有楔形耐张线夹的适用缆径范围小，仅适用农配网的小截面导线，且握力只能达到导线的65％。
发明内容
为解决上述问题，本发明提供一种楔形耐张线夹，结构简单，通用性强，适合各种电压等级线路。
本发明采用的技术方案是：楔形耐张线夹，包括左壳体、右壳体、上抽匣、下抽匣、上楔块、下楔块和两片挂板，所述左壳体、右壳体、上抽匣和下抽匣组装成整体并在内部形成纵截面为矩形的楔形孔，所述楔形孔前端的纵截面面积小于尾端的纵截面面积，所述上楔块和下楔块置于楔形孔内且相对设置，上楔块的上表面和下楔块的下表面分别与组装后的上抽匣和下抽匣的内侧楔形面平行贴合，上楔块的下表 面和下楔块的上表面均设有弧形凹槽，所述弧形凹槽之间形成导线槽，所述下楔块的尾端设有圆弧槽，所述圆弧槽的末端设有固定导线的压盖，所述左壳体和右壳体的尾端各设有双耳结构，两片挂板的一端分别插入相应的双耳结构中，通过销轴固定。
所述两片挂板的另一端均设有耳孔，通过连接金具与绝缘子相连。
所述双耳结构中的孔侧壁设有弹性挡圈。
所述上楔块和下楔块的末端均设有限位槽和凸块，所述上楔块的限位槽和凸块分别与下楔块的凸块和限位槽配合使上楔块和下楔块不会相对滑动。
所述左壳体、右壳体、上抽匣和下抽匣组装成整体后其纵截面为中间带矩形孔的椭圆。
本发明的有益效果是：1、外形圆润、结构简单，通用性强，可以重复多次使用，适合各种电压等级线路。2、壳体尾端与挂板之间通过销轴固定形成的铰链式的链接结构，避免不同材质直接的磨损；壳体尾端双耳结构中通孔式的设计，增加了散热面积。3、不需切断导线就可安装，跳线可与主线为一体，不存在接触电阻。4、线路施工方便，快捷，无需在线压接施工，无需担心引流松动，安装效率是常规压缩线夹的5倍以上。5、对900mm2及以下导线的握力能达到额定拉断力的95％。
附图说明
图1为本发明的结构示意图；
图2为图1的A-A剖视图；
图3为图1的B-B剖视图；
图4为上楔块的结构示意图；
图5为下楔块的结构示意图；
图6为上楔块和下楔块的连接关系图；
其中：1、左壳体，2、右壳体，3、上抽匣，4、下抽匣，5、上楔块，6、下楔块，7、挂板，8、导线槽，9、圆弧槽，10、压盖，11、双耳结构，12、销轴，13、耳孔，14、弹性挡圈，15、限位槽，16、尼龙扎带,17、固定螺栓组，18、连接螺栓组，19、凸块。
具体实施方式
为了加深对本发明的理解，下面将结合实施例和附图对本发明作进一步详述，该实施例仅用于解释本发明，并不构成对本发明的保护范围的限定。
如图1至图6所示，楔形耐张线夹，包括左壳体1、右壳体2、上抽匣3、下抽匣4、上楔块5、下楔块6和两片挂板7，左壳体1、右壳体2、上抽匣3和下抽匣4组装成整体后其纵截面为中间带矩形孔的椭圆，即在内部形成纵截面为矩形的楔形孔，楔形孔前端的纵截面面积小于尾端的纵截面面积，上楔块5和下楔块6置于楔形孔内且相对设置，上楔块5的上表面和下楔块6的下表面分别与组装后的上抽匣3和下抽匣4的内侧楔形面平行贴合，上楔块5的下表面和下楔块6的上表面均设有弧形凹槽，弧形凹槽之间形成导线槽8，用于夹 持导线，下楔块6的尾端在上楔块的基础上增加了用于导线跳线圆弧槽9，圆弧槽9的末端通过压盖10固定住导线，这样不需切断导线就可安装，跳线可与主线为一体，不存在接触电阻。左壳体1和右壳体2的尾端各设有双耳结构11，两片挂板7的一端分别插入相应的双耳结构11中，通过销轴12固定形成铰链结构，避免不同材质直接的磨损，双耳结构中通孔式的设计，增加了散热面积。两片挂板7的另一端均设有耳孔13，可通过连接金具与绝缘子相连。
双耳结构11中的孔侧壁设有弹性挡圈14防止销轴掉出。
上楔块5和下楔块6的末端均设有限位槽15和凸块19，上楔块的限位槽和凸块分别与下楔块的凸块和限位槽配合使上楔块和下楔块不会相对滑动，保证其相对位置不变。
安装方法如下：左壳体1、右壳体2、上抽匣3和下抽匣4组成一个整体，外形为椭圆台，内部为矩形的楔形孔，其中上抽匣(或下抽匣)与左壳体1和右壳体2之间已铆固，下抽匣(或上抽匣)可自由装卸，抽出下抽匣(或上抽匣)，将导线放入上楔块和下楔块之间的导线槽内，绑紧尼龙扎带16，放进壳体与抽匣组成的组件内，插上下抽匣(或上抽匣)至外壳限位处。将导线顺着下楔块的圆弧槽弯曲，使其贴合线槽，盖上压盖，使用固定螺栓组17紧固。上楔块和下楔块及导线推入组件的楔形孔内后，将连接螺栓组18与耐张线夹两个挂板的耳孔相连。

Claims (5)

  1. 楔形耐张线夹，其特征在于，包括左壳体、右壳体、上抽匣、下抽匣、上楔块、下楔块和两片挂板，所述左壳体、右壳体、上抽匣和下抽匣组装成整体并在内部形成纵截面为矩形的楔形孔，所述楔形孔前端的纵截面面积小于尾端的纵截面面积，所述上楔块和下楔块置于楔形孔内且相对设置，上楔块的上表面和下楔块的下表面分别与组装后的上抽匣和下抽匣的内侧楔形面平行贴合，上楔块的下表面和下楔块的上表面均设有弧形凹槽，所述弧形凹槽之间形成导线槽，所述下楔块的尾端设有圆弧槽，所述圆弧槽的末端设有固定导线的压盖，所述左壳体和右壳体的尾端各设有双耳结构，两片挂板的一端分别插入相应的双耳结构中，通过销轴固定。
  2. 根据权利要求1所述的楔形耐张线夹，其特征在于，所述两片挂板的另一端均设有耳孔，通过连接金具与绝缘子相连。
  3. 根据权利要求1所述的楔形耐张线夹，其特征在于，所述双耳结构中的孔侧壁设有弹性挡圈。
  4. 根据权利要求1所述的楔形耐张线夹，其特征在于，所述上楔块和下楔块的末端均设有限位槽和凸块，所述上楔块的限位槽和凸块分别与下楔块的凸块和限位槽配合使上楔块和下楔块不会相对滑动。
  5. 根据权利要求1所述的楔形耐张线夹，其特征在于，所述左壳体、右壳体、上抽匣和下抽匣组装成整体后其纵截面为中间带 矩形孔的椭圆。
PCT/CN2017/106634 2017-06-27 2017-10-18 楔形耐张线夹 WO2019000712A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107147066A (zh) * 2017-06-27 2017-09-08 江东金具设备有限公司 楔形耐张线夹
CN109217215A (zh) * 2018-07-27 2019-01-15 南京灵雀智能制造有限公司 一种架空电缆施工楔形耐张线夹
CN109038434B (zh) * 2018-09-17 2024-03-12 浙江金孚电力科技有限公司 一种楔形直通耐张线夹
CN109510146B (zh) * 2018-11-29 2024-04-05 北京帕尔普线路器材有限公司 一种楔形耐张线夹
CN110518529A (zh) * 2019-09-10 2019-11-29 安徽华希电力科技有限公司 一种方便安装的楔形耐张线夹

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2368049C1 (ru) * 2008-09-11 2009-09-20 Роман Вячеславович Жуков Натяжной клиновой зажим
JP2013138571A (ja) * 2011-12-28 2013-07-11 Furukawa Electric Power Systems Co Ltd 楔型引留クランプの押込機
CN107147066A (zh) * 2017-06-27 2017-09-08 江东金具设备有限公司 楔形耐张线夹
CN207098540U (zh) * 2017-06-27 2018-03-13 江东金具设备有限公司 楔形耐张线夹

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201435583Y (zh) * 2009-05-22 2010-03-31 永固集团股份有限公司 快速螺栓楔型耐张线夹
CN201985495U (zh) * 2010-12-30 2011-09-21 火炬电力金具有限公司 铝合金耐张线夹
CN203377569U (zh) * 2013-08-20 2014-01-01 国家电网公司 一种楔形耐张线夹
CN203674665U (zh) * 2013-08-20 2014-06-25 国家电网公司 一种楔形耐张线夹
CN203774727U (zh) * 2014-03-05 2014-08-13 宁波奉金电力金具有限公司 新型楔形耐张线夹
KR101562464B1 (ko) * 2014-05-19 2015-10-21 박철웅 전력선 연결용 고리형클램프
CN204131060U (zh) * 2014-08-21 2015-01-28 浙江宏祥金具有限公司 一种绝缘耐张线夹
CN205681071U (zh) * 2016-06-23 2016-11-09 浙江固来发电力金具有限公司 楔型绝缘耐张线夹

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2368049C1 (ru) * 2008-09-11 2009-09-20 Роман Вячеславович Жуков Натяжной клиновой зажим
JP2013138571A (ja) * 2011-12-28 2013-07-11 Furukawa Electric Power Systems Co Ltd 楔型引留クランプの押込機
CN107147066A (zh) * 2017-06-27 2017-09-08 江东金具设备有限公司 楔形耐张线夹
CN207098540U (zh) * 2017-06-27 2018-03-13 江东金具设备有限公司 楔形耐张线夹

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