WO2004093281A1 - Bouchon de cable retrecissant a froid - Google Patents

Bouchon de cable retrecissant a froid 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
Authority
WO
WIPO (PCT)
Prior art keywords
support tube
cold
cable plug
cable
plug according
Prior art date
Application number
PCT/CN2003/001097
Other languages
English (en)
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 DE20380348U priority Critical patent/DE20380348U1/de
Priority to AU2003292862A priority patent/AU2003292862A1/en
Publication of WO2004093281A1 publication Critical patent/WO2004093281A1/fr

Links

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

Un bouchon de câble rétrécissant à froid comprend un corps tubulaire (20) dont au moins une extrémité est reliée à une gaine élastique extérieure (1). Un tube de support (5) pouvant être emmanché sur la gaine élastique extérieure à dilatation radiale est ménagé dans la cavité interne de l'extrémité libre de la gaine extérieure élastique, et un cordon (7) qui facilite l'extraction de ladite gaine élastique extérieure est également ménagé sur le tube de support (5). Comme la gaine extérieure du bouchon de câble est de type 'rétrécissant à froid', le tube de support est disposé dans la gaine élastique dans laquelle il est forcé à se dilater radialement. Le tube de support ne sera pas extrait jusqu'à ce que les ferrures du câble soient insérées et bien connectées. La gaine extérieure cède alors pour former un ajustage serré. En outre, grâce au rétrécissement de la gaine extérieure, le bouchon de câble de l'invention peut être adapté à des ferrures de câbles présentant des diamètres extérieurs différents et permet d'améliorer son applicabilité et sa généralité d'usage.
PCT/CN2003/001097 2003-04-17 2003-12-19 Bouchon de cable retrecissant a froid WO2004093281A1 (fr)

Priority Applications (2)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 03225349 CN2624493Y (zh) 2003-04-17 2003-04-17 新型电缆插头和新型电缆附件
CN03225349.4 2003-04-17

Publications (1)

Publication Number Publication Date
WO2004093281A1 true WO2004093281A1 (fr) 2004-10-28

Family

ID=33163881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/001097 WO2004093281A1 (fr) 2003-04-17 2003-12-19 Bouchon de cable retrecissant a froid

Country Status (4)

Country Link
CN (1) CN2624493Y (fr)
AU (1) AU2003292862A1 (fr)
DE (1) DE20380348U1 (fr)
WO (1) WO2004093281A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008031252A1 (de) * 2008-07-02 2010-01-14 Tyco Electronics Raychem Gmbh Isolierkörper zum abgedichteten Abdecken einer elektrischen Kabelendverschlussverbindung
CN217361335U (zh) * 2022-05-17 2022-09-02 海南金盘智能科技股份有限公司 一种高压密封式干式变压器

Citations (6)

* Cited by examiner, † Cited by third party
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 (zh) * 1989-01-16 1991-08-07 卡维·皮雷利公司 电缆连接器元件、电缆接头和电缆导线接头管套
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 (zh) * 1997-04-07 2000-05-31 皮尔利电缆公司 电力电缆连接装置
CN2446701Y (zh) * 2000-09-13 2001-09-05 镇江市江冠电器有限公司 高弹性冷收缩电缆中间接头护套
CN2521803Y (zh) * 2001-11-22 2002-11-20 浙江永锦电力器材有限公司 冷缩电缆附件（1）

Patent Citations (6)

* Cited by examiner, † Cited by third party
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 (zh) * 1989-01-16 1991-08-07 卡维·皮雷利公司 电缆连接器元件、电缆接头和电缆导线接头管套
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 (zh) * 1997-04-07 2000-05-31 皮尔利电缆公司 电力电缆连接装置
CN2446701Y (zh) * 2000-09-13 2001-09-05 镇江市江冠电器有限公司 高弹性冷收缩电缆中间接头护套
CN2521803Y (zh) * 2001-11-22 2002-11-20 浙江永锦电力器材有限公司 冷缩电缆附件（1）

Also Published As

Publication number Publication date
CN2624493Y (zh) 2004-07-07
DE20380348U1 (de) 2006-03-16
AU2003292862A1 (en) 2004-11-04

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