CN110310766B - Cable multilayer hot melt sealing joint and installation device - Google Patents

Cable multilayer hot melt sealing joint and installation device Download PDF

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Publication number
CN110310766B
CN110310766B CN201910566391.6A CN201910566391A CN110310766B CN 110310766 B CN110310766 B CN 110310766B CN 201910566391 A CN201910566391 A CN 201910566391A CN 110310766 B CN110310766 B CN 110310766B
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cable
semi
layer
insulator
joint
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CN110310766A (en
Inventor
郭子阳
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Henan Crosslink Cable Co ltd
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Henan Crosslink Cable Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/009Cables with built-in connecting points or with predetermined areas for making deviations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0216Two layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02Soldered or welded connections
    • H01R4/021Soldered or welded connections between two or more cables or wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70Insulation of connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70Insulation of connections
    • H01R4/72Insulation of connections using a heat shrinking insulating sleeve
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cable Accessories (AREA)

Abstract

A multilayer hot melt sealing joint and a mounting device for a cable effectively solve the problems of high cost and low efficiency of the cable joint; a cable multilayer hot melt sealing joint comprises a welding body for welding an inner conductor of a cable, an inner semi-conducting layer and an insulator, wherein the inner semi-conducting layer and the insulator are wrapped outside the welding body and a conductor wire core, and a connecting outer semi-conducting layer and a metal shielding layer are wrapped outside the insulator; a mounting device for a cable joint comprises a mounting sleeve for placing a joint manufacturing part, and a left auxiliary part and a right auxiliary part which have hot melting functions; the invention has novel conception and smart structure, realizes double-layer protection on the cable, and utilizes the welding body to weld the inner conductor of the cable to keep good conductivity; the cross-linked cable hot-melting connector is easy to directly use on site, convenient to operate and safe and reliable, installation equipment can be prepared in advance, and quick maintenance can be realized when the cable is operated, and the manufacturing process does not need to operate other cables.

Description

Cable multilayer hot melt sealing joint and installation device
Technical Field
The invention relates to the technical field of power cables, in particular to a multilayer hot-melt sealing joint of a cable and a mounting device.
Background
Along with the improvement of urban power grids, the electric power cable has become a trend to replace an overhead line, has the advantages of good insulating property, large transmission capacity, light structure, no limitation of height drop and the like, and occupies an absolute dominant position in the field of cable application. The cable joint is widely applied to the operation of the power cable, is arranged between the cables, has certain insulation and sealing functions, is an accessory capable of enabling the two cables to form a continuous circuit, and is an indispensable component in a cable line. The cable insulation performance is reduced due to the damage of the joint, the running stability of a cable line is affected, the cable joint must be installed at a damaged point and recovered, but the cable is seriously damaged due to electric breakdown of the cable, the part with serious cable burning loss needs to be removed before the joint is installed, the cable is excavated and straightened for supplement, a large amount of manpower, material resources and time are needed, and the requirement of quickly recovering the electrification cannot be met; or a section of cable is added in the middle to connect two cable joints, so that the material cost is increased, the rush repair time is long, and the loss is enlarged.
There is a need for a cable multi-layer heat-fusible sealing joint and mounting device that addresses this problem.
Disclosure of Invention
In view of the above situation, the present invention provides a multi-layer hot-melt sealing joint for cables and a mounting device thereof, which effectively solve the problems of high cost and low efficiency of cable joints.
The technical scheme of its solution is, a cable multilayer hot melt sealing joint, including the cable that is used for connecting cable and install oversheath layer, armor and the inner sheath layer outside the cable, the cable includes copper shield layer, the outer semi-conducting layer of cable, cable insulating layer, conductor shielding layer and conductor sinle silk, its characterized in that: including the welding body that is used for welding the inside conductor of cable, parcel at welding body and conductor sinle silk outside interior semi-conductive layer and insulator and parcel at the external outer semi-conductive layer of connection and the metallic shield of insulator, interior semi-conductive layer connection conductor shielding layer, the insulator parcel is outside the interior semi-conductive layer, the insulator is connected with the cable insulating layer outward, connect outer semi-conductive layer and be connected with the cable outer semi-conductive layer.
A mounting device for a cable joint comprises a mounting sleeve for placing a joint manufacturing part, and a left auxiliary part and a right auxiliary part with hot melting functions, wherein the mounting sleeve comprises a first semi-annular sleeve and a second semi-annular sleeve;
the left auxiliary member include upper left auxiliary member and lower left auxiliary member, the right-hand member of left auxiliary member is the top of round platform form, is equipped with the heating piece in the top, the left end of top is equipped with the connecting axle, the left end of connecting axle is equipped with the locating plate, all be equipped with the through-hole in top, connecting axle and the locating plate, the structure of right auxiliary member is the same with left auxiliary member structure, the structure of right auxiliary member is opposite with the installation direction of left auxiliary member.
The invention has the beneficial effects that: the invention has novel conception and smart structure, realizes double-layer protection on the cable, utilizes the welding body to weld the inner conductor of the cable, realizes the stable transition of the cable and keeps good conductivity; the outer semi-conductive layer that sets up of butt fusion, effectively prevent in the interior semi-conductive layer that the electric field stress of interior semi-conductive layer is concentrated, wraps up the insulator outside the semi-conductive layer including, effective insulating butt fusion body sets up the shielding paint layer on the insulator, can further avoid electric field stress's concentrated breakdown cable. The cross-linked cable hot-melting connector is easy to directly use on site, convenient to operate and safe and reliable, installation equipment can be prepared in advance, and quick maintenance can be realized when the cable is operated, and the manufacturing process does not need to operate other cables.
Drawings
Fig. 1 is a schematic structural diagram of a multi-layer hot melt sealing joint of a cable according to the invention.
Fig. 2 is a partial structural schematic view of a cable multilayer hot melt sealing joint of the present invention.
Fig. 3 is a front view of a cable multilayer hot melt sealing joint installation device of the present invention.
Fig. 4 is a schematic structural diagram of a cable multilayer hot-melt sealing joint installation device.
Fig. 5 is a schematic view of the structure of the iris diaphragm positioning member of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example (b):
given by fig. 1 to 2, a cable multilayer hot melt sealing joint, including being used for connecting cable 1 and installing oversheath layer 2, armor and the inner sheath layer outside cable 1, cable 1 includes copper shield, cable outer semi-conductive layer 3, cable insulating layer, conductor shielding layer and conductor sinle silk 4, its characterized in that: including the welding body 5 that is used for the internal conductor of welded cable 1, parcel at welding body 5 and conductor sinle silk 4 outside interior semi-conducting layer 6 and insulator 8 and parcel at insulator 8 outside connect outer semi-conducting layer 9 and metal shielding layer 10, interior semi-conducting layer 6 connects the conductor shielding layer, has realized that the electric field of cable 1 is even, realizes the insulation and the sealed of single cable 1, insulator 8 parcel is outside including semi-conducting layer 6, insulator 8 is outer to be connected with the cable insulating layer, connect outer semi-conducting layer 9 and be connected with cable outer semi-conducting layer 3, prevent to discharge, avoid puncturing.
The inner semi-conducting layer 6 comprises a semi-conducting wrapping tape 11 wrapped outside the welding body 5 and a first silicon rubber cold-shrinkable tube 12 arranged outside the semi-conducting wrapping tape 11, and the semi-conducting wrapping tape 11 can be conveniently installed on the conductor wire core 4 through the first silicon rubber cold-shrinkable tube 12.
The insulator 8 comprises an inner insulating tube 13 and an outer insulating tube 14, the inner insulating tube 13 and the outer insulating tube 14 are respectively connected to the inner side and the outer side of the cable insulating layer, a shielding paint layer is coated on the outer side of the outer insulating tube 14, mutual discharge between the cables 2 can be effectively avoided, and insulation is guaranteed.
And a second silicon rubber shrinkage tube 15 sleeved on the connecting outer semi-conducting layer 9 and the cable outer semi-conducting layer 3 or a heat shrinkage tube for welding the connecting outer semi-conducting layer 9 on the cable outer semi-conducting layer 3 is arranged outside the connecting outer semi-conducting layer 9, so that the insulator 8 can be conveniently installed on the outer semi-conducting layer.
The metal shielding layer 10 is a zinc-plated copper net layer, and the zinc-plated copper net layer is connected with a copper shielding layer.
Metal shielding layer 10 is equipped with outward and is connected the armor layer and twine tinned copper braid 16 outside metal shielding layer 10, twine waterproof adhesive tape layer 17 of rolling up outside tinned copper braid 16 and around the PVC area 18 of wrapping outside waterproof adhesive tape layer 17, waterproof adhesive tape layer 17 and PVC area 18 all are connected with oversheath layer 2, the braided copper wire overcoat is equipped with the pyrocondensation pipe of connecting oversheath layer 2, and insulating properties and sealed waterproof performance are better, can avoid the sealed waterproof layer wearing and tearing of joint department and influence the water-proof effects life longer.
As shown in fig. 3 to 5, the installation device for the cable connector comprises an installation sleeve 19 for placing a connector manufacturing part, and a left auxiliary 20 and a right auxiliary 21 with hot melting function, wherein the left auxiliary 20 and the right auxiliary 21 are respectively installed at the left end and the right end of the installation sleeve 19, the installation sleeve 19 comprises a first semi-annular sleeve 22 and a second semi-annular sleeve 23, the first semi-annular sleeve 22 and the second semi-annular sleeve can be seamlessly connected into the installation sleeve 19, fixing rings 24 are installed on the left threads of the first semi-annular sleeve 22 and the second semi-annular sleeve 23, the first semi-annular sleeve 22 and the second semi-annular sleeve can be fixed into the installation sleeve 19 or easily separated from each other by controlling the fixing rings 24, and an iris diaphragm positioning member 25 for positioning the installation sleeve 19 on the cable 1 is arranged at the right end of the first semi-annular sleeve 22 and the second semi-annular sleeve 23.
The mounting sleeve 19 is internally provided with a semi-conductive wrapping tape 11, a first silicon rubber cold-shrinkable tube 12, an insulator 8, a heat-shrinkable tube and a metal shielding layer 10 which are sequentially sleeved from inside to outside.
The left auxiliary part 20 comprises an upper left auxiliary part 26 and a lower left auxiliary part 27, the upper left auxiliary part 26 and the lower left auxiliary part 27 are identical in structure, the upper left auxiliary part 26 and the lower left auxiliary part 27 are connected into the left auxiliary part 20 through bolts, the left auxiliary part 20 is conveniently installed on a cable, the right end of the left auxiliary part 20 is a truncated cone-shaped top head 28, the top head 28 can be abutted against an insulator 8, a heating block 29 is arranged in the top head 28, the heating block 29 is an electric heating block, a connecting shaft 30 is arranged at the left end of the top head 28, a positioning plate 31 is arranged at the left end of the connecting shaft 30, through holes 32 are formed in the top head 28, the connecting shaft 30 and the positioning plate 31, a tap of the first silicone rubber cold shrinkable tube 12 can extend to the outside through the through holes 32, the tap is conveniently pulled, the structure of the right auxiliary part 21 is identical to that of the left auxiliary part 20, but the length of the connecting shaft 30 of the right, the right auxiliary member 21 is constructed in the opposite direction to the installation direction of the left auxiliary member 20.
The iris diaphragm positioning member 25 includes: the rotary disc 33 is rotatably connected with the right end of the mounting sleeve 19, the rotary disc 33 restricts a rotating path of the rotary disc through the mounting sleeve 19, one end of each blade 34 is connected with the rotary disc 33 through a rotating shaft, the other end of each blade 34 is slidably connected with an open slot formed in the right end of the mounting sleeve 19 through the connecting rod 35, the number of the blades 34 is more than six, the two adjacent blades 34 in the position are arranged on the rotary disc 33 at intervals according to preset heights, each blade 34 can be any one of an arc-shaped blade 34 and a strip-shaped blade 34, the rotary disc 33 comprises a first half moon disc 36 and a second half moon disc 37, and the first half moon disc 36 and the second half moon disc 37 are fixedly connected through threads and rotatably mounted at the right end of the mounting sleeve 19.
When the cable is used, the distances between the copper shielding layer and the outer semi-conducting layer 3 of the cable at two ends, the insulating layer of the cable and the conductor shielding layer are measured, the proper inner semi-conducting layer 6, the insulator 8, the outer semi-conducting layer and the metal shielding layer 10 are cut, the metal shielding layer 10 can be cut for facilitating later work, the inner semi-conducting layer 6, the insulator 8, the outer semi-conducting layer and the metal shielding layer 10 are sequentially arranged on the conductor wire core 4 on the right side of a fracture from inside to outside, the first semi-annular sleeve 22 and the second semi-annular sleeve 23 are opened, the first semi-annular sleeve 22 or the second semi-annular sleeve 23 is arranged outside the inner semi-conducting layer 6, the insulator 8, the outer semi-conducting layer and the metal shielding layer 10, and the first semi-annular sleeve 22 and the second semi-annular sleeve 23 are combined into the installation sleeve 19 and fixed through.
The length of the inner semiconductive layer 6 is made longer than the distance between the conductor shield layers broken at both sides when the inner semiconductive layer 6, the insulator 8, the outer semiconductive layer and the metal shield layer 10 are fitted, in order to enable the inner semi-conducting layer 6 to be tightly connected with the conductor shielding layer, a first silicone rubber cold-shrinkable tube 12 which is convenient to use is arranged outside the inner semi-conducting layer 6, an inner insulating tube 13 and an outer insulating tube 14 are directly sleeved, sleeving the inner insulating tube 13 outside the first silicon rubber cold-shrinkable tube 12, coating shielding paint on the outer side of the outer insulating tube 14, air-drying to form a shielding paint layer, in order to facilitate the installation of the insulator 8 on the semiconductor outside the cable 1, a heat shrink tube is sleeved outside the insulator 8, the metal shielding layer 10 is installed on the heat shrink tube, two ends of the metal shielding layer 10 respectively extend out of the safety sleeve, and the heat shrink tube is sleeved on the outer sheath layer 2.
The cable then needs to be pre-treated: the outer sheath layer 2, the armor layer and the inner sheath layer are peeled off, the copper shielding layer and the cable outer semi-conducting layer 3 and the cable insulating layer with certain lengths are peeled off from the fracture of the conductor wire core 4, the metal shielding layer 10, the cable outer semi-conducting layer 3 and the cable insulating layer are processed into a pencil-head slope shape with smooth transition, and the conductor shielding layer exposes the conductor wire core 4.
Measuring both ends cable phase difference distance, taking one section in addition and matching the heat sealing body 5 of both ends conductor sinle silk 4 phase difference distance, the both ends of heat release butt fusion processing heat sealing body 5, correspond conductor sinle silk 4 and use copper wire cross fixation, make the 5 both ends of heat sealing body butt fusion conductor sinle silk 4 of both ends cable 1 respectively, later clean conductor sinle silk 4.
After the cable is pretreated, the distance between the blades 34 is controlled by rotating the rotary table 33, so that the diameter of an inner hole on the iris diaphragm positioning member 25 is larger than the conductor core 4 and smaller than the inner semi-conducting layer 6, the mounting sleeve 19 is pushed leftwards, the inner semi-conducting layer 6, the insulator 8, the outer semi-conducting layer and the metal shielding layer 10 are driven to move leftwards together by the iris diaphragm positioning member 25, the inner semi-conducting layer 6, the insulator 8, the outer semi-conducting layer and the metal shielding layer 10 are respectively moved to proper positions, and the iris diaphragm positioning member 25 is controlled again, so that the blades 34 of the iris diaphragm positioning member 25 continuously move inwards until the blades 34 are clamped on the conductor core or the outer semi-conducting layer of the cable.
Installing the left auxiliary 20 on the conductor wire core 4, installing a plurality of hot melt adhesives melted into a semi-ring shape on the top 28, namely, installing on the side surface of the circular truncated cone, moving the left auxiliary 20 to the position plate 31 to be against the left end of the installation sleeve 19, then the top 28 as the auxiliary is against the insulator 8, then the hot melt adhesives on the top 28 is also against the insulator 8, at this time, the hot melt adhesives are melted by controlling the heating block 29 in the top 28 to heat to 95 degrees, after heating for a certain period of time, the left auxiliary 20 is slowly moved leftwards, when the top 28 of the left auxiliary 20 leaves the installation sleeve 19, the heating function of the heating block 29 is closed, the heat shrink tube shrinks, and the insulator 8 and the hot melt adhesives melted on the insulator 8 are attached to the outer semi-conducting layer of the cable, the hot melt adhesives solidify along with the reduction of the temperature, controlling the iris diaphragm positioning member 25, so as to enlarge the inner hole on the iris diaphragm positioning member 25 to a certain, the iris diaphragm positioning member 25 is removed, the right auxiliary 21 is mounted on the conductor core 4, the right end of the insulator 8 is operated in the same manner, and after the completion of the work, the mounting sleeve 19 and the right auxiliary 21 are removed, and the connection outer semiconductive layer 9 is mounted.
Fixing and binding the installed cable 1 by using PVC, installing two ends of a tinned copper woven tape layer 16 on an armor layer by PVC winding tapes, winding a waterproof adhesive tape layer 17 on the outer sides of the tinned copper woven tape layer 16 and the armor layer, then winding a PVC tape 18 on the waterproof adhesive tape layer 17, moving a hot melt tape to the PVC tape 18 and shrinking, and winding 1-2 layers of waterproof adhesive tapes and PVC adhesive tapes at two ends of a heat shrink tube to finish the butt joint work of a cable head.
The invention has the beneficial effects that: the invention has novel conception and smart structure, realizes double-layer protection on the cable, utilizes the welding body to weld the inner conductor of the cable, realizes the stable transition of the cable and keeps good conductivity; the outer semi-conductive layer that sets up of butt fusion, effectively prevent in the interior semi-conductive layer that the electric field stress of interior semi-conductive layer is concentrated, wraps up the insulator outside the semi-conductive layer including, effective insulating butt fusion body sets up the shielding paint layer on the insulator, can further avoid electric field stress's concentrated breakdown cable. The cross-linked cable hot-melting connector is easy to directly use on site, convenient to operate and safe and reliable, installation equipment can be prepared in advance, and quick maintenance can be realized when the cable is operated, and the manufacturing process does not need to operate other cables.
The foregoing detailed description/examples, which are specific embodiments of the present invention and are intended to be illustrative of the concepts of the present invention, are illustrative and exemplary and are not to be construed as limiting the embodiments of the present invention and the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (3)

1. The mounting device for the multilayer hot-melt sealing joint of the cable is characterized by comprising a mounting sleeve (19) for placing a joint manufacturing part, a left auxiliary part (20) and a right auxiliary part (21) with a hot-melt function, wherein the mounting sleeve (19) comprises a first semi-annular sleeve (22) and a second semi-annular sleeve (23), fixing rings (24) are mounted on the left threads of the first semi-annular sleeve (22) and the second semi-annular sleeve (23), and iris diaphragm positioning members (25) for positioning the mounting sleeve (19) on the cable (1) are arranged at the right ends of the first semi-annular sleeve (22) and the second semi-annular sleeve (23); left side auxiliary member (20) including last left auxiliary member (26) and lower left auxiliary member (27), the right-hand member of left side auxiliary member (20) is top (28) of round platform form, be equipped with heating block (29) in top (28), the left end of top (28) is equipped with connecting axle (30), the left end of connecting axle (30) is equipped with locating plate (31), top (28), all be equipped with through-hole (32) in connecting axle (30) and locating plate (31), the structure of right side auxiliary member (21) is the same with left auxiliary member (20) structure, the structure of right side auxiliary member (21) is opposite with the installation direction of left auxiliary member (20).
2. The mounting device for the multilayer hot-melt sealing joint of the cable according to claim 1, wherein the mounting sleeve (19) is internally provided with a semi-conductive wrapping tape (11), a first silicon rubber cold-shrinkable tube (12), an insulator (8), a heat-shrinkable tube and a metal shielding layer (10) which are sleeved from inside to outside in sequence.
3. A mounting device for a multilayer hot melt sealed joint of cables according to claim 1, characterized in that said iris diaphragm positioning member (25) comprises: carousel (33), blade (34) and connecting rod (35), the right-hand member swivelling joint of carousel (33) and installation cover (19), the one end of blade (34) be connected with carousel (33) through the pivot, the other end of blade (34) pass through connecting rod (35) and set up the open slot sliding connection on installation cover (19) right-hand member, carousel (33) include first half moon dish (36) and second half moon dish (37).
CN201910566391.6A 2019-06-27 2019-06-27 Cable multilayer hot melt sealing joint and installation device Active CN110310766B (en)

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CN110310766B true CN110310766B (en) 2020-11-06

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CN113866905A (en) * 2021-10-25 2021-12-31 吉林建筑科技学院 Optical fiber quick connector and using method thereof
CN116131150B (en) * 2023-04-12 2023-06-27 四川电器集团中低压智能配电有限公司 Inflatable multifunctional PT cabinet

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CN2930223Y (en) * 2006-06-05 2007-08-01 力致科技股份有限公司 Heat conductive fixing auxiliary part
JP2009099385A (en) * 2007-10-17 2009-05-07 Yazaki Corp Water cutoff method of joint electric wire
CN106742077B (en) * 2016-11-29 2019-07-12 深圳航天东方红海特卫星有限公司 A kind of thermal control mechanism of iris component and its iris formula
CN207638313U (en) * 2017-12-29 2018-07-20 深圳市鸿安达电缆有限公司 A kind of high-voltage cable connector accessory of tape insulation set
CN108683149A (en) * 2018-04-24 2018-10-19 长园电力技术有限公司 A kind of crosslinked cable hot melting connector and preparation method thereof

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