CN112993881A - Wire joint insulation processing device - Google Patents

Wire joint insulation processing device Download PDF

Info

Publication number
CN112993881A
CN112993881A CN202110282392.5A CN202110282392A CN112993881A CN 112993881 A CN112993881 A CN 112993881A CN 202110282392 A CN202110282392 A CN 202110282392A CN 112993881 A CN112993881 A CN 112993881A
Authority
CN
China
Prior art keywords
pipe
insulating protection
tube
conductive connecting
wire
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110282392.5A
Other languages
Chinese (zh)
Inventor
南钰
宋瑞卿
赵明
王宏研
秦泽华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Kaifeng Power Supply Co of State Grid Henan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Kaifeng Power Supply Co of State Grid Henan Electric Power Co Ltd
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 State Grid Corp of China SGCC, Kaifeng Power Supply Co of State Grid Henan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202110282392.5A priority Critical patent/CN112993881A/en
Publication of CN112993881A publication Critical patent/CN112993881A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof

Landscapes

  • Cable Accessories (AREA)

Abstract

A wire joint insulation processing device relates to the technical field of cable connection, is used for connecting the joint ends of two sections of wire bodies and comprises a conductive connecting pipe, an insulation protecting pipe and a sealing device; the joint ends of the two sections of wire bodies are respectively and correspondingly and tightly inserted with the two ends of the conductive connecting pipe, the pipe body of the conductive connecting pipe is sleeved with an insulating protection pipe with the length being greater than that of the conductive connecting pipe, and the two ends of the insulating protection pipe are respectively provided with a sealing device for sealing the pipe orifice of the insulating protection pipe and the corresponding wire body insulating layer; the sealing device comprises a rubber sealing ring, a top ring and a pressing cap which are sleeved corresponding to the wire body, a counter bore which is coaxial corresponding to the insulating protection tube is arranged at the position of the pipe orifice of the insulating protection tube, and the rubber sealing ring is arranged at the bottom of the counter bore; the invention has simple structure and convenient use, is suitable for insulation treatment of field wire joints, and can prevent water vapor from eroding the wire joints and even causing short-circuit accidents.

Description

Wire joint insulation processing device
Technical Field
The invention relates to the technical field of cable wiring, in particular to an insulation processing device for a wire joint.
Background
As is known, most of the insulation treatment of the conventional wire joint position is to use an insulating tape to wind or use a heat-shrinkable tube sleeve to achieve the insulation purpose, these two methods are only suitable for indoor wiring operation, if the factors of whether the wire joint is corroded by water vapor need to be considered in the field, it is obvious that the conventional method using an insulating tape to wind or using a heat-shrinkable tube sleeve can not avoid water vapor from entering the wire joint position, water vapor is corroded for a long time and easily causes aging of the wire joint, poor contact is achieved, the conductive quality is reduced, if a rain and snow weather is encountered, a short-circuit accident is easily caused, and this phenomenon is a problem to be solved urgently by a person skilled in the.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses an electric wire joint insulation processing device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric wire joint insulation processing device is used for connecting the joint ends of two sections of electric wire bodies and comprises a conductive connecting pipe, an insulation protecting pipe and a sealing device; the joint ends of the two sections of wire bodies are respectively and correspondingly and tightly inserted with the two ends of the conductive connecting pipe, the pipe body of the conductive connecting pipe is sleeved with an insulating protection pipe with the length being greater than that of the conductive connecting pipe, and the two ends of the insulating protection pipe are respectively provided with a sealing device for sealing the pipe orifice of the insulating protection pipe and the corresponding wire body insulating layer; the sealing device comprises a rubber sealing ring, a top ring and a pressing cap which are sleeved correspondingly with the wire body, a counter bore which is coaxial correspondingly to the insulating protection tube is arranged at the position of the pipe orifice of the insulating protection tube, the rubber sealing ring is arranged at the hole bottom of the counter bore, and the outer diameter of the rubber sealing ring is correspondingly consistent with the aperture of the counter bore of the pipe orifice of the insulating protection tube; the top ring corresponds the activity with the orificial counter bore of insulating protection pipe and pegs graft, and the length of top ring is greater than the degree of depth of the orificial counter bore of insulating protection pipe, the one end that compresses tightly the cap corresponds threaded connection with insulating protection pipe mouth of pipe outer wall, and the other end that compresses tightly the cap is equipped with the corresponding end of top ring and corresponds the step of contradicting.
Preferably, the rubber sealing ring is of a hollow structure, and the cavity of the rubber sealing ring is filled with insulating liquid.
Preferably, the top ring is provided with a chamfer structure corresponding to the inner edge of one end of the rubber sealing ring, and the outer edge of the end of the top ring is of a fillet structure.
Preferably, the edge of the hole bottom opening part of the counter bore of the pipe orifice of the insulating protection pipe is provided with a chamfer structure.
Preferably, a tin block is arranged in the middle of the conductive connecting pipe.
Preferably, the insulation treatment method comprises: firstly, sleeving an insulating protection tube and a sealing device on one of two sections of electric wire bodies, then respectively and tightly inserting the joint ends of the two sections of electric wire bodies with the two ends of a conductive connecting tube in a corresponding manner, necking the two ends of a tube body of the conductive connecting tube by using a tool to ensure that the joint end of the electric wire body is firmly and reliably connected with the conductive connecting tube, then heating the position of the conductive connecting tube, where a tin block is arranged, to melt the tin block, and simultaneously necking the position of the conductive connecting tube, where the tin block is arranged, by using the tool to wrap the joint end of the electric wire body by using the molten tin, so as to prevent the phenomenon that the joint end of the electric wire body is in virtual connection; then move insulating protection pipe to electrically conductive connecting pipe position, guarantee that the insulating layer of two sections electric wire bodies all inserts the corresponding mouth of pipe of insulating protection pipe, screw up and compress tightly the cap, compress tightly the cap and drive the apical ring extrusion rubber sealing ring to the inner ring that makes the rubber sealing ring can correspond closely with the insulating layer of corresponding electric wire body and contradict, can play sealed waterproof effect on the one hand, can produce great frictional force between the inner ring of on the other hand rubber sealing ring and the insulating layer of corresponding electric wire body, prevent that insulating protection pipe from shifting.
Preferably, the pipe body of the conductive connecting pipe is provided with a plurality of ring grooves at intervals.
Preferably, the pipe body of the insulating protection pipe is provided with an outer hexagonal structure or a flat square convenient to clamp.
Preferably, the cap body of the pressing cap is provided with anti-skid grains.
Preferably, the insulating protection tube is a telescopic tube with adjustable length, and a sealing structure is arranged between adjacent tube sections of the telescopic tube.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the wire joint insulation processing device disclosed by the invention has the advantages of simple structure, convenience in use and lower production cost, is suitable for field wire joint insulation processing, and can prevent water vapor from corroding the wire joint and even causing short-circuit accidents; the sealing device comprises a rubber sealing ring, a top ring and a pressing cap which are sleeved with the electric wire body correspondingly, the pressing cap is screwed, the pressing cap drives the top ring to extrude the rubber sealing ring, so that an inner ring of the rubber sealing ring can be correspondingly and tightly abutted against an insulating layer of the corresponding electric wire body, on one hand, a sealing and waterproof effect can be achieved, on the other hand, a large friction force can be generated between the inner ring of the rubber sealing ring and the insulating layer of the corresponding electric wire body, and the insulating protection pipe is prevented from shifting; in addition, the intraductal intermediate position of electrically conductive connecting pipe is equipped with the tin pig, can heat the position that electrically conductive connecting pipe was equipped with the tin pig promptly when the wiring operation, makes the tin pig melt to utilize the instrument to make electrically conductive connecting pipe be equipped with the position necking down of tin pig simultaneously, make the molten tin wrap up the connector end of electric wire body, prevent that the connector end of electric wire body from connecting with the pipe shaft of electrically conductive connecting pipe in vain and producing the phenomenon of striking sparks.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the sealing device;
fig. 3 is a schematic perspective view of the present invention.
In the figure: 1. a wire body; 2. a conductive connection pipe; 3. an insulating protection tube; 4. a rubber seal ring; 5. a top ring; 6. a compression cap; 7. a tin block; 8. a ring groove; 9. an outer hexagonal structure.
Detailed Description
The present invention will be explained in detail by the following embodiments, and the purpose of disclosing the invention is to protect all technical improvements within the scope of the present invention, in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and it is convenient to describe the present invention, and it is not intended to indicate or imply that the referred device or element must have a specific orientation.
With reference to fig. 1 to 3, an insulation processing device for a wire joint is used for connecting joint ends of two sections of wire bodies 1, and comprises a conductive connecting pipe 2, an insulation protection pipe 3 and a sealing device; the joint ends of the two sections of wire bodies 1 are respectively and correspondingly and tightly inserted with the two ends of the conductive connecting pipe 2; according to the requirement, the tin block 7 is arranged at the middle position in the conductive connecting pipe 2, namely the position of the conductive connecting pipe 2 provided with the tin block 7 can be heated during wiring operation, so that the tin block 7 is melted, and meanwhile, the position of the conductive connecting pipe 2 provided with the tin block 7 is necked down by using a tool, so that the melted tin wraps the joint end of the electric wire body 1, and the phenomenon of sparking caused by virtual connection between the joint end of the electric wire body 1 and the pipe body of the conductive connecting pipe 2 is prevented; the pipe body of the conductive connecting pipe 2 is provided with a plurality of annular grooves 8 at intervals, namely, a tool can be used for tightly pressing the positions of the annular grooves 8 during wiring operation, so that the conductive connecting pipe 2 can be conveniently necked down to tightly press the joint of the wire body 1; the tube body of the conductive connecting tube 2 is sleeved with an insulating protection tube 3 with the length larger than that of the conductive connecting tube 2, and two ends of the insulating protection tube 3 are respectively provided with a sealing device for sealing between the tube opening of the insulating protection tube 3 and the corresponding insulating layer of the wire body 1;
the sealing device comprises a rubber sealing ring 4, a top ring 5 and a pressing cap 6 which are correspondingly sleeved with the wire body 1, a counter bore which is coaxial with the insulating protection tube 3 is arranged at the position of the tube opening of the insulating protection tube 3, the rubber sealing ring 4 is arranged at the hole bottom of the counter bore, and the outer diameter of the rubber sealing ring 4 is correspondingly consistent with the aperture of the counter bore of the tube opening of the insulating protection tube 3; the top ring 5 is movably inserted into a counter bore of the orifice of the insulating protection tube 3 correspondingly, the length of the top ring 5 is larger than the depth of the counter bore of the orifice of the insulating protection tube 3, one end of the pressing cap 6 is in threaded connection with the outer wall of the orifice of the insulating protection tube 3 correspondingly, the other end of the pressing cap 6 is provided with a step which is correspondingly abutted by the corresponding end of the top ring 5, namely, during wiring, the insulating protection tube 3 and a sealing device are sleeved on one section of the two sections of electric wire bodies 1, then the joint ends of the two sections of electric wire bodies 1 are respectively and tightly inserted into the two ends of the conductive connecting tube 2 correspondingly, and the two ends of the tube body of the conductive connecting tube 2 are shrunk by using a tool;
then the insulating protection tube 3 is moved to the position of the conductive connecting tube 2, the insulating layers of the two sections of the electric wire bodies 1 are ensured to be inserted into the corresponding tube openings of the insulating protection tube 3, the pressing cap 6 is screwed, and the pressing cap 6 drives the top ring 5 to extrude the rubber sealing ring 4, so that the inner ring of the rubber sealing ring 4 can be correspondingly and tightly abutted to the insulating layer of the corresponding electric wire body 1, on one hand, the sealing and waterproof effects can be achieved, on the other hand, a large friction force can be generated between the inner ring of the rubber sealing ring 4 and the insulating layer of the corresponding electric wire body 1, and the insulating; according to the requirements, the rubber sealing ring 4 is of a hollow structure, the insulating liquid is filled in the cavity of the rubber sealing ring 4, the rubber sealing ring 4 with the insulating liquid filled in the inner cavity is more easily deformed greatly, the sealing performance is improved, an operator can conveniently screw the pressing cap 6, and meanwhile, the deformation of the inner ring of the rubber sealing ring 4 is more uniform under the action of the insulating liquid, so that the sealing performance is further ensured;
in addition, the inner edge of one end of the top ring 5, which corresponds to the rubber sealing ring 4, is provided with a chamfer structure, the outer edge of the end of the top ring 5 is in a fillet structure, and the edge of the bottom opening of the counter bore of the orifice of the insulating protection tube 3 is provided with the chamfer structure, so that the inner ring of the rubber sealing ring 4 can be correspondingly and tightly abutted against the insulating layer of the corresponding wire body 1; the pipe body of the insulating protection pipe 3 is provided with an outer hexagonal structure 9 or a flat square convenient to clamp, and the cap body of the pressing cap 6 is provided with anti-skid grains convenient to screw the pressing cap 6; insulating protection tube 3 is the flexible pipe that length can be adjusted, and is equipped with seal structure between the adjacent pipeline section of this flexible pipe, can adjust insulating protection tube 3's length according to actual conditions promptly, guarantees that two sections electric wire body 1's insulating layer homoenergetic inserts the corresponding mouth of pipe of insulating protection tube 3.
According to the wire joint insulation processing device, during wiring, the insulation protection tube 3 and the sealing device are sleeved on one section of the two sections of wire bodies 1, then the joint ends of the two sections of wire bodies 1 are correspondingly and tightly inserted with the two ends of the conductive connecting pipe 2, and the two ends of the pipe body of the conductive connecting pipe 2 are shrunk by using a tool, so that the joint ends of the wire bodies 1 are firmly and reliably connected with the conductive connecting pipe 2; then move insulating protection tube 3 to electrically conductive connecting pipe 2 position, guarantee that the insulating layer of two sections electric wire bodies 1 all inserts the corresponding mouth of pipe of insulating protection tube 3, screw up and compress tightly cap 6, it drives 5 extrusion rubber seal rings 4 of knock-out ring to compress tightly cap 6, thereby make the inner ring of rubber seal ring 4 correspond closely and contradict with the insulating layer of corresponding electric wire body 1, can play waterproof seal's effect on the one hand, can produce great frictional force between the inner ring of on the other hand rubber seal ring 4 and the insulating layer of corresponding electric wire body 1, prevent that insulating protection tube 3 from shifting.
The present invention is not described in detail in the prior art.

Claims (10)

1. An insulation processing device for a wire joint is used for connecting joint ends of two wire bodies (1), and is characterized in that: comprises a conductive connecting pipe (2), an insulating protection pipe (3) and a sealing device; the joint ends of the two sections of the wire bodies (1) are respectively and correspondingly and tightly inserted with the two ends of the conductive connecting pipe (2), the pipe body of the conductive connecting pipe (2) is sleeved with an insulating protection pipe (3) with the length being larger than that of the conductive connecting pipe (2), and the two ends of the insulating protection pipe (3) are respectively provided with a sealing device for sealing the pipe orifice of the insulating protection pipe (3) and the insulating layer of the corresponding wire body (1); the sealing device comprises a rubber sealing ring (4), a top ring (5) and a pressing cap (6) which are correspondingly sleeved on the electric wire body (1), a counter bore which is coaxial with the insulating protection tube (3) is arranged at the position of the tube opening of the insulating protection tube (3), the rubber sealing ring (4) is arranged at the bottom of the counter bore, and the outer diameter of the rubber sealing ring (4) is correspondingly consistent with the aperture of the counter bore at the tube opening of the insulating protection tube (3); the top ring (5) is movably inserted into the counter bore of the orifice of the insulating protection tube (3) correspondingly, the length of the top ring (5) is larger than the depth of the counter bore of the orifice of the insulating protection tube (3), one end of the pressing cap (6) is in threaded connection with the outer wall of the orifice of the insulating protection tube (3), and the other end of the pressing cap (6) is provided with a step which is correspondingly abutted to the corresponding end of the top ring (5).
2. The wire-terminal insulation processing device according to claim 1, wherein: the rubber sealing ring (4) is of a hollow structure, and insulating liquid is filled in a cavity of the rubber sealing ring (4).
3. The wire-terminal insulation processing device according to claim 1, wherein: the inner edge of one end of the top ring (5) corresponding to the rubber sealing ring (4) is provided with a chamfer structure, and the outer edge of the end of the top ring (5) is of a fillet structure.
4. The wire-terminal insulation processing device according to claim 1, wherein: and the edge of the opening part of the hole bottom of the counter bore of the pipe orifice of the insulating protection pipe (3) is provided with a chamfer structure.
5. The wire-terminal insulation processing device according to claim 1, wherein: and a tin block (7) is arranged in the middle position in the conductive connecting pipe (2).
6. The wire-terminal insulation processing device according to claim 5, wherein: the insulation treatment method comprises the following steps: firstly, an insulating protection tube (3) and a sealing device are sleeved on one of two sections of electric wire bodies (1), then the joint ends of the two sections of electric wire bodies (1) are respectively and correspondingly and tightly inserted with the two ends of a conductive connecting tube (2), the two ends of a tube body of the conductive connecting tube (2) are necked down by using a tool, so that the joint end of the electric wire body (1) is firmly and reliably connected with the conductive connecting tube (2), then the position of the conductive connecting tube (2) provided with a tin block (7) is heated, the tin block (7) is melted, and the position of the conductive connecting tube (2) provided with the tin block (7) is necked down by using the tool, so that the molten tin wraps the joint end of the electric wire body (1), and the phenomenon of sparking caused by the virtual connection of the joint end of the electric wire body (1) and the tube body of the conductive connecting; then move insulating protection tube (3) to electrically conductive connecting pipe (2) position, guarantee that the insulating layer of two sections electric wire bodies (1) all inserts the corresponding mouth of pipe of insulating protection tube (3), screw up and compress tightly cap (6), it drives apical ring (5) extrusion rubber sealing ring (4) to compress tightly cap (6), thereby the inner ring that makes rubber sealing ring (4) can correspond closely with the insulating layer of corresponding electric wire body (1) and contradict, can play waterproof seal's effect on the one hand, can produce great frictional force between the inner ring of on the other hand rubber sealing ring (4) and the insulating layer of corresponding electric wire body (1), prevent that insulating protection tube (3) from shifting.
7. The wire-terminal insulation processing device according to claim 1, wherein: the pipe body of electrically conductive connecting pipe (2) is equipped with a plurality of annulars (8) at interval.
8. The wire-terminal insulation processing device according to claim 1, wherein: the pipe body of the insulating protection pipe (3) is provided with an outer hexagonal structure (9) or a flat square convenient to clamp.
9. The wire-terminal insulation processing device according to claim 1, wherein: the cap body of the pressing cap (6) is provided with anti-skid grains.
10. The wire-terminal insulation processing device according to claim 1, wherein: the insulating protection tube (3) is a telescopic tube with adjustable length, and a sealing structure is arranged between adjacent tube sections of the telescopic tube.
CN202110282392.5A 2021-03-16 2021-03-16 Wire joint insulation processing device Pending CN112993881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110282392.5A CN112993881A (en) 2021-03-16 2021-03-16 Wire joint insulation processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110282392.5A CN112993881A (en) 2021-03-16 2021-03-16 Wire joint insulation processing device

Publications (1)

Publication Number Publication Date
CN112993881A true CN112993881A (en) 2021-06-18

Family

ID=76335933

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110282392.5A Pending CN112993881A (en) 2021-03-16 2021-03-16 Wire joint insulation processing device

Country Status (1)

Country Link
CN (1) CN112993881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113451836A (en) * 2021-06-29 2021-09-28 上海市隧道工程轨道交通设计研究院 Wiring protection device for electric wire and construction method thereof
CN114336144A (en) * 2021-12-13 2022-04-12 陕西航空电气有限责任公司 Aeroengine ignition cable interface structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201364963Y (en) * 2009-03-06 2009-12-16 台湾云林电子股份有限公司 Connector device for electrically connecting two electric wires
CN204668904U (en) * 2015-06-14 2015-09-23 山东临大锐思智造技术有限公司 A kind of cable sealed joint
CN205945001U (en) * 2016-08-29 2017-02-08 长缆电工科技股份有限公司 Cable intermediate head sealing device
CN206293863U (en) * 2016-12-09 2017-06-30 上海大郡动力控制技术有限公司 Waterproof connector of cable
CN208571567U (en) * 2018-08-13 2019-03-01 深圳市沃尔核材股份有限公司 A kind of fire-resisting cable intermediate joint device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201364963Y (en) * 2009-03-06 2009-12-16 台湾云林电子股份有限公司 Connector device for electrically connecting two electric wires
CN204668904U (en) * 2015-06-14 2015-09-23 山东临大锐思智造技术有限公司 A kind of cable sealed joint
CN205945001U (en) * 2016-08-29 2017-02-08 长缆电工科技股份有限公司 Cable intermediate head sealing device
CN206293863U (en) * 2016-12-09 2017-06-30 上海大郡动力控制技术有限公司 Waterproof connector of cable
CN208571567U (en) * 2018-08-13 2019-03-01 深圳市沃尔核材股份有限公司 A kind of fire-resisting cable intermediate joint device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113451836A (en) * 2021-06-29 2021-09-28 上海市隧道工程轨道交通设计研究院 Wiring protection device for electric wire and construction method thereof
CN114336144A (en) * 2021-12-13 2022-04-12 陕西航空电气有限责任公司 Aeroengine ignition cable interface structure
CN114336144B (en) * 2021-12-13 2024-05-03 陕西航空电气有限责任公司 Aeroengine ignition cable interface structure

Similar Documents

Publication Publication Date Title
CN112993881A (en) Wire joint insulation processing device
CN201853814U (en) Connecting pipe for cable conductor
CN114825196B (en) Manufacturing method of waterproof traction head of composite smooth aluminum sleeve cable
CN116826445A (en) Connector with anticreep response function
CN206353609U (en) A kind of new power transmission and distribution splicing fitting
CN206893892U (en) A kind of closed type connector plug structure
CN209913413U (en) Corrosion-resistant heat-shrinkable sleeve
CN210607685U (en) Wire nose convenient to installation and dismantlement
CN210838159U (en) T-shaped branch joint for cable
CN210334712U (en) Special tool for underwater wet manual welding
CN106711624A (en) Improved 2M connector and manufacturing method thereof
CN207150060U (en) Low-voltage cable joint prosthetic device
CN112072602A (en) High tension cable protection pipe plugging device
CN219268358U (en) Waterproof cable protection tube
CN213584342U (en) Waterproof sealing tail cover structure suitable for tubular product
CN217691700U (en) Quick connecting tool for power line repair disconnection and disconnection
CN216443477U (en) New forms of energy that leakproofness is good fills electric pile cable connecting device
CN218827859U (en) Durable heating wire structure
CN111384703B (en) Multifunctional well completion cable butt joint device and use method thereof
CN221080440U (en) Crimping waterproof connector
CN217406162U (en) Butt joint device for underground steel pipe cable of oil field
CN109203410A (en) A kind of extrusion processing mold that automobile electric wire peeling force can be improved
CN213071557U (en) Quick plug structure of electricity accent
CN202206098U (en) Drawing head of single-core high-voltage cable
CN215267590U (en) Cable joint for connecting hose

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210618

RJ01 Rejection of invention patent application after publication