WO2004093281A1 - Cold-shrink cable plug - Google Patents

Cold-shrink cable plug Download PDF

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Publication number
WO2004093281A1
WO2004093281A1 PCT/CN2003/001097 CN0301097W WO2004093281A1 WO 2004093281 A1 WO2004093281 A1 WO 2004093281A1 CN 0301097 W CN0301097 W CN 0301097W WO 2004093281 A1 WO2004093281 A1 WO 2004093281A1
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WO
WIPO (PCT)
Prior art keywords
support tube
cold
cable plug
cable
plug according
Prior art date
Application number
PCT/CN2003/001097
Other languages
French (fr)
Chinese (zh)
Inventor
Heping Zhou
Shufeng Kang
Original Assignee
Heping Zhou
Shufeng Kang
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 Heping Zhou, Shufeng Kang filed Critical Heping Zhou
Priority to AU2003292862A priority Critical patent/AU2003292862A1/en
Priority to DE20380348U priority patent/DE20380348U1/en
Publication of WO2004093281A1 publication Critical patent/WO2004093281A1/en

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Classifications

    • 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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • 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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
    • H02G15/1826—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube
    • H02G15/1833—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube formed of helically wound strip with adjacent windings, which are removable by applying a pulling force to a strip end
    • 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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the present invention relates to a cold-shrinkable cable plug for a cable branch box, an outdoor ring network cabinet, and a box-type substation.
  • connection and tapping of cables in the field of electrical and communication is increasing and becoming more and more complicated. As shown
  • the prior art cable connection is generally connected by a prefabricated jacket and a cable accessory insert.
  • the outer casing part is sealed and insulated, and the cable attachment acts as a seal and electric field stress dispersion.
  • the cable attachment is inserted into the outer casing, and the straight section of the cable attachment is just inserted into the outer casing, but the following disadvantages exist: Since the outer casing is prefabricated, that is, the inner diameter of the outer casing is constant, when the thickness of the cable changes , the change in the outer diameter of the cable attachment will occur, and the insertion of the cable attachment will be laborious or the seal will be difficult to guarantee.
  • the cable accessories are also prefabricated, and have the above-mentioned disadvantages, and a specification cable requires a cable attachment of a specification, which is not versatile, and the production process is cumbersome and the manufacturing cost is high.
  • the technical problem to be solved by the invention is to overcome the defects of inconvenient cable connection, fixed specifications, poor versatility and low connection quality, and a cold-shrink cable plug can be applied, which can be applied to many specifications and a wide range of cables and cable accessories.
  • the connection is more convenient to use and install while ensuring versatility, sealing and safety.
  • the technical solution of the present invention is to construct a cold-shrinkable cable plug, including a pipe body, at least one elastic outer casing is connected to one side of the pipe body, and the free end of the elastic outer casing is confirmed.
  • the inner chamber is provided with a support tube adapted to the inner diameter thereof, and the support tube is further provided with a pull-tab or a pull-tab for facilitating pulling it out of the elastic outer sleeve.
  • a support tube used in the present invention may be a hollow column-shaped body, and the easy-pull bag is a flexible bag that wraps the inner and outer surfaces of the support tube, and the flexible bag has a tap at the end of the support tube, as shown in FIG.
  • the support tube may also be axially sleeved by a plurality of hollow cylindrical bodies of different diameters, the easy-pull bag being a flexible bag enclosing the inner and outer surfaces of the support tube, the flexible bag being in the support tube a tap is left at the end, as shown in FIG. 6; or, another support tube is used, and the multi-section spiral collar is fixedly connected in the axial direction to form a hollow cylindrical body, and the easy-pull belt is in the support tube There are taps at the ends, see Figure 4.
  • the collar section includes a symmetrically disposed groove and a flange that is engageable with the groove.
  • the groove is rectangular or "V” shaped or trapezoidal.
  • the elastic outer casing can also be integrated with the cable attachment.
  • the cold-shrinkable cable plug provided by the invention is inserted into the support tube by expanding the outer jacket portion of the cold-shrinkable cable plug in advance, and when the cable is connected, the cable with the cable attachment or the stripped cable can be inserted into the cold. After shrinking the support tube of the cable plug, and then withdrawing the support tube, the outer sleeve is automatically restored to its original shape by the elastic force, and is firmly clamped to the connected cable accessory or cable.
  • This structure is more convenient to install and has better sealing.
  • cable accessories of different outer diameters can be adapted to improve the application range and versatility of the plug.
  • 1 is an external view of a prior art T-type cable plug connection cable
  • FIG. 2 is an external view of a prior art K-type cable plug connection cable
  • Figure 3 is a cross-sectional view showing the structure of a T-type cold-shrinkable cable plug of the present invention
  • FIG. 4 is a schematic structural view of a support tube in an embodiment of the present invention
  • Figure 5 is a schematic structural view of a support tube according to another embodiment of the present invention
  • FIG. 6 is a schematic structural view of a support tube according to still another embodiment of the present invention.
  • Figure 7 is a cross-sectional view of the cable attachment (before expansion);
  • Figure 8 is a schematic view of the T-type cold-shrinkable cable plug according to the present invention before being connected with the cable accessory
  • Figure 9 is a schematic view of the K-type cold-shrinkable cable plug according to the present invention before being connected with the cable accessory
  • Figure 10 is the present invention Another structure involved, namely a structural cross-sectional view of the stress cone of the composite cable attachment of the elastic outer wall.
  • FIG. 1 and 2 respectively show schematic structures of prior art T-type and K-type cable plug connection cables, which are commonly used with cable connectors in the prior art cable connections.
  • the front part of the cable accessory is a straight section, the end of which is connected with a terminal 2 which is electrically connected to the cable core 4, and the rear end of the cable attachment has a tapered insulating jacket 6 (which can also be straight) with a stress cone therein.
  • the outer casing is sealed and insulated, and the cable attachment acts as a seal and electric field stress dispersion.
  • the outer casing Since the outer casing is prefabricated, the inner diameter of the outer casing is fixed. Since the cable is not standard, the cables of the manufacturers are slightly different. Therefore, the outer diameter of the cable accessories after installation on the 3 ⁇ 4 cable core is different. Therefore, a slight mismatch between the two will result in laborious or difficult to seal the connection.
  • the cold-shrinkable cable plug includes a tubular body 20, one side of the tubular body 20 is connected to the elastic outer casing 1 in a "T" shape, and the inner end of the elastic outer casing 1 is provided There is a support tube 5 adapted to be adapted to its inner diameter, the support tube 5 being provided with a pull-tab 7 for facilitating its pulling out of the elastic outer sleeve 1.
  • the support tube 5 is a hollow cylinder, and the support tube 5 can also be used with other hollow tubular structures.
  • the support tube 5 is located in the outer sleeve 1.
  • the outer sleeve Since the outer sleeve is tight, the outer portion of the outer sleeve is enlarged by mechanical force or other external force, and the inner diameter of the support tube is larger than The outer diameter of the sealed cable attachment sealing section; if the support tube 5 is withdrawn, the elastic outer casing 1 will automatically return to its original shape due to the elasticity, and its contracted inner diameter is smaller than the outer diameter of the cable attachment to be inserted therewith.
  • the support tube 5 is fixedly connected in the axial direction by a multi-section spiral collar 21 into a hollow cylinder, and the easy-pull belt 7 has a tap at the end of the support tube 5.
  • the collar 21 section comprises a symmetrical arrangement of grooves 8 and a flange 14 which is adapted to the groove 8.
  • the grooves and flanges are rectangular, "V" shaped or ladder or curved.
  • the support tube 5 is a hollow cylinder
  • the easy-pull belt 7 is a flexible cloth bag enclosing the inner and outer surfaces of the support tube 5, and the bag has a tap 10 at the end of the support tube 5.
  • the support tube 5 can be pulled out.
  • the support tube 5 is axially sleeved by a plurality of hollow cylindrical bodies of different diameters
  • the easy-pull tape 7 is a flexible cloth bag that wraps the inner and outer surfaces of the support tube 5, and the bag is in the bag.
  • a tap 10 is left at the end of the support tube 5. When the bag tap 10 is pulled, the thinner support tube will be retracted into the thicker support tube, and the support tube 5 can be pulled out.
  • the cable attachment shown in Fig. 7 has a hollow cylinder with a stress cone 9 inside, which can also be a stress tube structure.
  • the cable attachment is a composite structure of a stress cone and an insulating material, and other structures can also be used.
  • FIG. 8 and FIG. 9 respectively show the structural relationship between the T-type and K-type cable plugs of the present invention and the cable accessories installed.
  • the cable accessories are inserted into the support tube 5, and connected according to the normal method, and then the support tube 5 is pulled.
  • the tap 10 of the easy-pull belt pulls out the support tube 5, and the elastic outer sleeve 1 is automatically restored to its original state.
  • the jacket 1 is tightly held on the cable attachment.
  • the elastic outer sleeve 1 is contracted, the inner diameter is smaller than the outer diameter of the cable attachment, so that the sealing property of the connection is greatly improved, and the running reliability is better.
  • the invention also relates to two other cold-shrink cable plugs, as shown in Figures 10 and 11.
  • a stress cone 9 is embedded in the elastic outer casing 1.
  • the stress cone is integrated with the insulating outer layer, and the cable plug and the cable accessory are actually integrated into one body.
  • the shape after expansion is similar to that of FIG. 3, except that When the cable is connected, the cable accessory is no longer installed. Instead, the cable is stripped to the specified size and directly connected to the cable plug.
  • Figure 11 is similar to Figure 10 except that the inner diameter of the outer sleeve is generally large.

Landscapes

  • Cable Accessories (AREA)

Abstract

A cold-shrink cable plug comprises a tubular-body(20), one end of which is at least connected to an elastic outter sleeve(l). A supporting tube(5), which can be fit with the radially expansed elastic outter sleeve,is arranged in the inner cavity of the free end of the elastic outter sleeve, and a drawstring (7), which facilatates pulling out the said elastic outter sleeve, is also arranged on the supporting tube(5). Since the outter sleeve of the cable plug is a type of cold-shrink , the supporting tube is disposed in the elastic sleeve when it is forced to radially extended , the supporting tube will not be pulled out until the cable fittings are inserted and well connected, , the outter sleeve resiles and forms a tight fit . The configuration of the invention facilitates the connection and has a better seal . Moreover because of the shrinkage of the outer sleeve, the cable plug of the invention can be fit with cable fittings with various outer diameter and can improve its applicability and generality.

Description

冷缩电缆插头 技术领域  Cold shrink cable plug
本发明涉及用于电缆分支箱、 户外环网柜和箱式变电站的冷缩电缆插 头。  The present invention relates to a cold-shrinkable cable plug for a cable branch box, an outdoor ring network cabinet, and a box-type substation.
背景技术 Background technique
电气与通信领域中电缆连接、 分接的情况越来越多， 越来越复杂。如图 The connection and tapping of cables in the field of electrical and communication is increasing and becoming more and more complicated. As shown
1或图 2所示，现有技术的电缆连接普遍采用预制式外套与电缆附件插入方 式连接。外套部分起密封和绝缘作用，电缆附件起密封和电场应力分散作用。 使用时， 将电缆附件插入外套中， 电缆附件的平直段正好塞进外套内， 但存 在以下缺点： 由于外套是预制式的， 即其外套的内径是一定的， 当电缆的粗 细有变化时， 就会出现电缆附件的外径粗细的变化， 电缆附件插入时就会出 现插入费力或者密封难以保证。 另外， 电缆附件也是预制式的， 同样具有上 述缺点， 而且一个规格电缆就需要配一种规格的电缆附件， 通用性不高， 而 且， 生产过程烦琐、 制造成本较高。 1 or as shown in Fig. 2, the prior art cable connection is generally connected by a prefabricated jacket and a cable accessory insert. The outer casing part is sealed and insulated, and the cable attachment acts as a seal and electric field stress dispersion. In use, the cable attachment is inserted into the outer casing, and the straight section of the cable attachment is just inserted into the outer casing, but the following disadvantages exist: Since the outer casing is prefabricated, that is, the inner diameter of the outer casing is constant, when the thickness of the cable changes , the change in the outer diameter of the cable attachment will occur, and the insertion of the cable attachment will be laborious or the seal will be difficult to guarantee. In addition, the cable accessories are also prefabricated, and have the above-mentioned disadvantages, and a specification cable requires a cable attachment of a specification, which is not versatile, and the production process is cumbersome and the manufacturing cost is high.
发明内容 Summary of the invention
本发明要解决的技术问题是克服现有电缆连接不方便、规格固定、通用 性差、 连接质量不高等缺陷， 提出一种冷缩电缆插头， 可以适用较多规格、 较大范围电缆与电缆附件的连接， 在保证通用性、 密封性和安全性的同时， 使用和安装上更加方便。  The technical problem to be solved by the invention is to overcome the defects of inconvenient cable connection, fixed specifications, poor versatility and low connection quality, and a cold-shrink cable plug can be applied, which can be applied to many specifications and a wide range of cables and cable accessories. The connection is more convenient to use and install while ensuring versatility, sealing and safety.
为解决上述技术问题， 本发明的技术方案是构造一种冷缩电缆插头， 包 括管体， 所述管体的一侧至少连接有一个弹性外套， 在所述弹性外套自由端 确认本 的内腔设有可与其内径相适配的支撑管，该支撑管上还设有便于将其从所述 弹性外套内拉出的易拉带或易拉袋。 In order to solve the above technical problem, the technical solution of the present invention is to construct a cold-shrinkable cable plug, including a pipe body, at least one elastic outer casing is connected to one side of the pipe body, and the free end of the elastic outer casing is confirmed. The inner chamber is provided with a support tube adapted to the inner diameter thereof, and the support tube is further provided with a pull-tab or a pull-tab for facilitating pulling it out of the elastic outer sleeve.
本发明采用的一种支撑管可以是中空柱状体，所述易拉袋为包裹所述支 撑管内外表面的柔性袋， 该柔性袋在所述支撑管的端部留有抽头， 如图 5所 示； 所述支撑管也可由多根不同直径的中空柱状体沿轴向套接而成， 所述易 拉袋为包裹所述支撑管内外表面的柔性袋，该柔性袋在所述支撑管的端部留 有抽头， 如图 6所示； 或者， 采用另一种支撑管， 由多节螺旋形的套环沿轴 向固定连接成中空柱状体， 所述易拉带在所述支撑管的端部留有抽头， 参见 图 4。  A support tube used in the present invention may be a hollow column-shaped body, and the easy-pull bag is a flexible bag that wraps the inner and outer surfaces of the support tube, and the flexible bag has a tap at the end of the support tube, as shown in FIG. The support tube may also be axially sleeved by a plurality of hollow cylindrical bodies of different diameters, the easy-pull bag being a flexible bag enclosing the inner and outer surfaces of the support tube, the flexible bag being in the support tube a tap is left at the end, as shown in FIG. 6; or, another support tube is used, and the multi-section spiral collar is fixedly connected in the axial direction to form a hollow cylindrical body, and the easy-pull belt is in the support tube There are taps at the ends, see Figure 4.
所述套环截面包括对称设置的凹槽以及可与该凹槽适配的凸边。  The collar section includes a symmetrically disposed groove and a flange that is engageable with the groove.
所述凹槽为矩形或 "V"形或梯形。  The groove is rectangular or "V" shaped or trapezoidal.
所述弹性外套也可与电缆附件复合成一体。  The elastic outer casing can also be integrated with the cable attachment.
实施发明提供的冷缩电缆插头， 由于预先通过将冷缩电缆插头的外套部 分用外力扩大后内置入支撑管， 当连接电缆时， 可将安装好电缆附件的电缆 或剥好尺寸的电缆插入冷缩电缆插头的支撑管内， 然后抽出该支撑管， 则外 套在弹力的作用下自动恢复原状，并牢牢地箍紧在被连接的电缆附件或电缆 上。 这种结构安装起来更方便， 密封性更好， 另外， 由于外套的收縮性能， 可以适配不同外径的电缆附件， 提高插头的适用范围和通用性。  The cold-shrinkable cable plug provided by the invention is inserted into the support tube by expanding the outer jacket portion of the cold-shrinkable cable plug in advance, and when the cable is connected, the cable with the cable attachment or the stripped cable can be inserted into the cold. After shrinking the support tube of the cable plug, and then withdrawing the support tube, the outer sleeve is automatically restored to its original shape by the elastic force, and is firmly clamped to the connected cable accessory or cable. This structure is more convenient to install and has better sealing. In addition, due to the shrinkage of the outer casing, cable accessories of different outer diameters can be adapted to improve the application range and versatility of the plug.
附图说明 DRAWINGS
图 1 是现有技术 T型电缆插头连接电缆的外观图；  1 is an external view of a prior art T-type cable plug connection cable;
图 2是现有技术 K型电缆插头连接电缆的外观图；  2 is an external view of a prior art K-type cable plug connection cable;
图 3 是本发明 T型冷缩电缆插头的结构剖视图；  Figure 3 is a cross-sectional view showing the structure of a T-type cold-shrinkable cable plug of the present invention;
图 4是本发明一个实施例中支撑管的结构示意图； . 图 5是本发明另一实施例中支撑管的结构示意图； 4 is a schematic structural view of a support tube in an embodiment of the present invention; Figure 5 is a schematic structural view of a support tube according to another embodiment of the present invention;
图 6是本发明又一实施例中支撑管的结构示意图；  6 is a schematic structural view of a support tube according to still another embodiment of the present invention;
图 7是一种电缆附件的剖视图 （扩张前）；  Figure 7 is a cross-sectional view of the cable attachment (before expansion);
图 8是按照本发明的 T型冷縮电缆插头与电缆附件连接前的示意图； 图 9是按照本发明的 K型冷缩电缆插头与电缆附件连接前的示意图； 图 10、 图 11是本发明涉及的另一种结构， 即弹性外套内壁复合电缆附 件应力锥的结构剖视图。  Figure 8 is a schematic view of the T-type cold-shrinkable cable plug according to the present invention before being connected with the cable accessory; Figure 9 is a schematic view of the K-type cold-shrinkable cable plug according to the present invention before being connected with the cable accessory; Figure 10, Figure 11 is the present invention Another structure involved, namely a structural cross-sectional view of the stress cone of the composite cable attachment of the elastic outer wall.
具体实施方式 Detailed ways
图 1和图 2分别示出了现有技术 T型和 K型电缆插头连接电缆的示意 结构， 现有技术的电缆连接普遍采用预制式外套 1与电缆附件插入连接。 电 缆附件前段为平直段， 其端部接有与电缆线芯 4导通的端子 2， 电缆附件的 后端锥型绝缘外套 6 (也可以平直的）其内设有应力锥。 外套部分起密封和 绝缘作用， 电缆附件起密封和电场应力分散作用。连接时只能选择与该外套 内径适配的电缆附件插入外套， 电缆附件的平直段正好塞进外套。 由于外套 是预制式的， 其外套的内径是一定的， 由于电缆制作时不标准， 各厂家的电 缆也略有不同， 因此电缆附件安装在 ¾缆线芯上后其外径也是不相同的， 因 此两者配合稍微不好就会造成两者连接时费力或难以保证密封。  1 and 2 respectively show schematic structures of prior art T-type and K-type cable plug connection cables, which are commonly used with cable connectors in the prior art cable connections. The front part of the cable accessory is a straight section, the end of which is connected with a terminal 2 which is electrically connected to the cable core 4, and the rear end of the cable attachment has a tapered insulating jacket 6 (which can also be straight) with a stress cone therein. The outer casing is sealed and insulated, and the cable attachment acts as a seal and electric field stress dispersion. When connecting, only the cable attachment that fits the inner diameter of the outer casing can be inserted into the outer casing, and the straight section of the cable attachment is just inserted into the outer casing. Since the outer casing is prefabricated, the inner diameter of the outer casing is fixed. Since the cable is not standard, the cables of the manufacturers are slightly different. Therefore, the outer diameter of the cable accessories after installation on the 3⁄4 cable core is different. Therefore, a slight mismatch between the two will result in laborious or difficult to seal the connection.
在图 3示出的本发明的一个实施例中，冷缩电缆插头包括管体 20，管体 20的一侧与弹性外套 1成 "T"型连接， 该弹性外套 1自由端的内腔中设有 可与其内径变化后相适配的支撑管 5， 该支撑管 5上设有便于将其拉出所述 弹性外套 1的易拉带 7。 支撑管 5为中空的圆柱体， 支撑管 5也可釆用其它 的中空的管状结构。支撑管 5位于外套 1内， 由于外套很紧， 需采用机械力 或其它外力将外套部分扩大后将支撑管 5放入其中，支撑管内径大于将与其 插接的电缆附件密封段的外径； 若抽出支撑管 5， 弹性外套 1由于弹性会自 动恢复原状， 其收缩后的内径小于将与其插接的电缆附件的外径。 In one embodiment of the invention illustrated in FIG. 3, the cold-shrinkable cable plug includes a tubular body 20, one side of the tubular body 20 is connected to the elastic outer casing 1 in a "T" shape, and the inner end of the elastic outer casing 1 is provided There is a support tube 5 adapted to be adapted to its inner diameter, the support tube 5 being provided with a pull-tab 7 for facilitating its pulling out of the elastic outer sleeve 1. The support tube 5 is a hollow cylinder, and the support tube 5 can also be used with other hollow tubular structures. The support tube 5 is located in the outer sleeve 1. Since the outer sleeve is tight, the outer portion of the outer sleeve is enlarged by mechanical force or other external force, and the inner diameter of the support tube is larger than The outer diameter of the sealed cable attachment sealing section; if the support tube 5 is withdrawn, the elastic outer casing 1 will automatically return to its original shape due to the elasticity, and its contracted inner diameter is smaller than the outer diameter of the cable attachment to be inserted therewith.
在图 4示出的实施例中， 支撑管 5由多节螺旋形的套环 21沿轴向固定 连接成中空圆柱体，所述易拉带 7在所述支撑管 5的端部留有抽头 10。所述 套环 21截面包括对称设置的凹槽 8及可与该凹槽 8适配的凸边 14。 所述凹 槽和凸边为矩形、 "V"型或梯型或弧型。  In the embodiment shown in FIG. 4, the support tube 5 is fixedly connected in the axial direction by a multi-section spiral collar 21 into a hollow cylinder, and the easy-pull belt 7 has a tap at the end of the support tube 5. 10. The collar 21 section comprises a symmetrical arrangement of grooves 8 and a flange 14 which is adapted to the groove 8. The grooves and flanges are rectangular, "V" shaped or ladder or curved.
在图 5示出的实施例中， 支撑管 5为一中空圆柱体， 易拉带 7为包裹支 撑管 5内外表面的柔性布袋，该布袋在支撑管 5的端部留有抽头 10。当抽拉 布袋抽头 10时， 可将支撑管 5—起拉出来。  In the embodiment shown in Fig. 5, the support tube 5 is a hollow cylinder, and the easy-pull belt 7 is a flexible cloth bag enclosing the inner and outer surfaces of the support tube 5, and the bag has a tap 10 at the end of the support tube 5. When the bag tap 10 is pulled, the support tube 5 can be pulled out.
在图 6示出的实施例中，支撑管 5由多根不同直径的中空柱状体沿轴向 套接而成， 易拉带 7为包裹所述支撑管 5内外表面的柔性布袋， 该布袋在支 撑管 5的端部留有抽头 10。 当抽拉布袋抽头 10时， 较细的支撑管会缩进较 粗的支撑管， 即可将所述支撑管 5—起拉出来。  In the embodiment shown in FIG. 6, the support tube 5 is axially sleeved by a plurality of hollow cylindrical bodies of different diameters, and the easy-pull tape 7 is a flexible cloth bag that wraps the inner and outer surfaces of the support tube 5, and the bag is in the bag. A tap 10 is left at the end of the support tube 5. When the bag tap 10 is pulled, the thinner support tube will be retracted into the thicker support tube, and the support tube 5 can be pulled out.
图 7示出的电缆附件有一中空圆柱体， 内有一应力锥 9， 内部也可以是 应力管结构， 电缆附件是由应力锥和绝缘材料复合成一体的结构， 也可以采 用其它结构。  The cable attachment shown in Fig. 7 has a hollow cylinder with a stress cone 9 inside, which can also be a stress tube structure. The cable attachment is a composite structure of a stress cone and an insulating material, and other structures can also be used.
图 8、图 9分别示出了本发明 T型和 K型电缆插头及安装好电缆附件的 结构关系， 先将电缆附件插入支撑管 5中， 并按正常方法连接， 然后再拉动 支撑管 5中易拉带的抽头 10，将支撑管 5抽出，弹性外套 1即自动恢复原状。 此时该外套 1紧紧的抱紧在电缆附件上。 弹性外套 1收缩后， 其内径小于电 缆附件的外径， 使得连接的密封性大大提高， 运行可靠性更好。 另外由于外 套的收缩性能， 可以适配不同规格的电缆附件， 从而提高了插头的适用范围 和通用性。 本发明还涉及另两种冷缩电缆插头， 如图 10、 图 11所示。 以图 10为例， 在 弹性外套 1内部镶有一应力锥 9， 该应力锥与绝缘外层复合一体， 实际是使 电缆插头和电缆附件复合为一体， 扩张后形状和图 3类似， 只不过和电缆连 接时不再安装电缆附件， 而是把电缆按规定尺寸剥好后， 直接和电缆插头连 接。 图 11与图 10类似， 只不过外套的内径一般大。 8 and FIG. 9 respectively show the structural relationship between the T-type and K-type cable plugs of the present invention and the cable accessories installed. First, the cable accessories are inserted into the support tube 5, and connected according to the normal method, and then the support tube 5 is pulled. The tap 10 of the easy-pull belt pulls out the support tube 5, and the elastic outer sleeve 1 is automatically restored to its original state. At this point the jacket 1 is tightly held on the cable attachment. After the elastic outer sleeve 1 is contracted, the inner diameter is smaller than the outer diameter of the cable attachment, so that the sealing property of the connection is greatly improved, and the running reliability is better. In addition, due to the shrinkage performance of the outer casing, cable accessories of different specifications can be adapted, thereby improving the application range and versatility of the plug. The invention also relates to two other cold-shrink cable plugs, as shown in Figures 10 and 11. Taking FIG. 10 as an example, a stress cone 9 is embedded in the elastic outer casing 1. The stress cone is integrated with the insulating outer layer, and the cable plug and the cable accessory are actually integrated into one body. The shape after expansion is similar to that of FIG. 3, except that When the cable is connected, the cable accessory is no longer installed. Instead, the cable is stripped to the specified size and directly connected to the cable plug. Figure 11 is similar to Figure 10 except that the inner diameter of the outer sleeve is generally large.

Claims

权 利 要 求 Rights request
1、 一种冷縮电缆插头， 包括管体 (20), 其特征在于， 所述管体的一侧 至少连接一个弹性外套 （1)， 该弹性外套 （1 ) 自由端的内腔中设有可与其 内径变大后相适配的支撑管 （5)， 该支撑管 （5) 上还设有便于将其拉出所 述弹性外套 ( 1 ) 的易拉带 (7)。 A cold-shrinkable cable plug, comprising a pipe body (20), characterized in that at least one elastic outer casing (1) is connected to one side of the pipe body, and the inner cavity of the free end of the elastic outer casing (1) is provided A support tube (5) adapted to the inner diameter thereof, the support tube (5) is further provided with a pull-tab (7) for facilitating pulling it out of the elastic outer sleeve (1).
2、 根据权利要求 1所述冷缩电缆插头， 其特征在于， 所述支撑管 (5) 为一中空柱状体， 所述易拉带（7)为包裹所述支撑管 (5) 内外表面的柔性 袋， 该柔性袋在所述支撑管 （5) 的端部留有抽头 （10)。  2. The cold-shrinkable cable plug according to claim 1, wherein the support tube (5) is a hollow cylindrical body, and the easy-pull tape (7) is wrapped around the inner and outer surfaces of the support tube (5). A flexible bag having a tap (10) at the end of the support tube (5).
3、 根据权利要求 1所述冷缩电缆插头， 其特征在于， 所述支撑管 （5) 由多根不同直径的中空柱状体沿轴向套接而成， 所述易拉带 （7) 为包裹所 述支撑管（5) 内外表面的柔性袋， 该柔性袋在所述支撑管（5) 的端部留有 抽头 （10)。  The cold-shrinkable cable plug according to claim 1, wherein the support tube (5) is formed by arranging a plurality of hollow cylindrical bodies of different diameters in an axial direction, and the easy-pull tape (7) is A flexible bag enclosing the inner and outer surfaces of the support tube (5), the flexible bag leaving a tap (10) at the end of the support tube (5).
4、 根据权利要求 1所述冷缩电缆插头， 其特征在于， 所述支撑管 （5) 由多节螺旋形的套环（21 )沿轴向固定连接成中空柱状体， 所述易拉带（7) 在所述支撑管 （5) 的端部留有抽头 （10)。  The cold-shrinkable cable plug according to claim 1, wherein the support tube (5) is fixedly connected in the axial direction by a multi-section spiral collar (21) into a hollow cylindrical body, the easy-pull belt (7) A tap (10) is left at the end of the support tube (5).
5、 根据权利要求 4所述冷缩电缆插头， 其特征在于， 所述套环 （21 ) 截面包括对称设置的凹槽（8)及可与该凹槽 （8)适配的凸边（14)。  5. The cold-shrinkable cable plug according to claim 4, wherein the collar (21) cross section comprises a symmetrically disposed groove (8) and a flange (14) engageable with the groove (8) ).
6、 根据权利要求 5所述冷缩电缆插头， 其特征在于， 所述凹槽（8)为 矩形或 "V"形或梯形或弧形。  6. A cold-shrinkable cable plug according to claim 5, characterized in that the recess (8) is rectangular or "V" shaped or trapezoidal or curved.
7、根据权利要求 1所述冷缩电缆插头，其特征在于，所述弹性外套（1 ) 内镶有一应力锥 (9), 该应力锥和外层绝缘复合为一体。  The cold-shrinkable cable plug according to claim 1, characterized in that the elastic outer casing (1) is internally provided with a stress cone (9) which is integrated with the outer insulating layer.
8、 根据权利要求 1至 7任一项所述冷缩电缆插头， 其特征在于， 所述 管体（20) 与一个弹性外套 （1) 成 "T"型连接。 The cold-shrinkable cable plug according to any one of claims 1 to 7, wherein The tubular body (20) is connected to a flexible outer casing (1) in a "T" shape.
9、 根据权利要求 1至 7任一项所述冷缩电缆插头， 其特征在于， 所述 管体 (20) 与弹性外套 (1)成 "K"型连接。  The cold-shrinkable cable plug according to any one of claims 1 to 7, characterized in that the tubular body (20) is connected to the elastic outer casing (1) in a "K" shape.
PCT/CN2003/001097 2003-04-17 2003-12-19 Cold-shrink cable plug WO2004093281A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003292862A AU2003292862A1 (en) 2003-04-17 2003-12-19 Cold-shrink cable plug
DE20380348U DE20380348U1 (en) 2003-04-17 2003-12-19 Cold shrinking cable connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03225349.4 2003-04-17
CN 03225349 CN2624493Y (en) 2003-04-17 2003-04-17 Novel cable plug and novel electric cable accessories

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WO2004093281A1 true WO2004093281A1 (en) 2004-10-28

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Publication number Priority date Publication date Assignee Title
DE102008031252A1 (en) * 2008-07-02 2010-01-14 Tyco Electronics Raychem Gmbh Insulating body for sealingly covering an electrical cable end connection
CN217361335U (en) * 2022-05-17 2022-09-02 海南金盘智能科技股份有限公司 High-voltage sealed dry-type transformer

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CN1053715A (en) * 1989-01-16 1991-08-07 卡维·皮雷利公司 Cable connector element, cable joint and cable wire connector pipe box
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CN2446701Y (en) * 2000-09-13 2001-09-05 镇江市江冠电器有限公司 High elasticity cold contraction cable intermediate joint sheath
CN2521803Y (en) * 2001-11-22 2002-11-20 浙江永锦电力器材有限公司 Shrink cable accessories

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Publication number Priority date Publication date Assignee Title
US3515798A (en) * 1968-12-06 1970-06-02 Minnesota Mining & Mfg Elastic cover and removable cone assembly
CN1053715A (en) * 1989-01-16 1991-08-07 卡维·皮雷利公司 Cable connector element, cable joint and cable wire connector pipe box
US5486388A (en) * 1991-12-16 1996-01-23 Pirelli Cavi S.P.A. Enclosure assembly for elongate cylindrical objects such as electric cable splices
CN1255252A (en) * 1997-04-07 2000-05-31 皮尔利电缆公司 Connecting cord junction
CN2446701Y (en) * 2000-09-13 2001-09-05 镇江市江冠电器有限公司 High elasticity cold contraction cable intermediate joint sheath
CN2521803Y (en) * 2001-11-22 2002-11-20 浙江永锦电力器材有限公司 Shrink cable accessories

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AU2003292862A1 (en) 2004-11-04
DE20380348U1 (en) 2006-03-16

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