CN213151061U - Branch joint device for frequency conversion coaxial power cable - Google Patents

Abstract

The utility model provides a branch piecing devices for frequency conversion coaxial power cable, include and be used for as carrying out middle electrically conductive piece (2) of butt joint to frequency conversion coaxial power cable, set up in middle electrically conductive piece (2) and be used for pouring barrel shell (1) as the casing of middle electrically conductive piece (2), the setting is in pouring barrel shell (1) and be used for going on fixed rubber stress awl (9) to frequency conversion coaxial power cable, through pouring barrel shell (1), it is fixed to have realized containing middle electrically conductive piece (2), through middle electrically conductive piece (2), realized connecting two frequency conversion coaxial power cable that are the diameter differentiation, through rubber stress awl (9), realized being connected frequency conversion coaxial power cable and pouring barrel shell (1), consequently, frequency conversion coaxial power cable's connection effect has been improved.

Description

Branch joint device for frequency conversion coaxial power cable

Technical Field

The utility model relates to a branch piecing devices, especially a branch piecing devices for frequency conversion coaxial power cable.

Background

The frequency conversion coaxial power cable is widely applied to the relevant fields of electromagnetic ejection, magnetic levitation suspended track traffic, linear motor driving and the like, and in order to realize the interconnection of the frequency conversion coaxial power cable, the branch joint device for the frequency conversion coaxial power cable is an important cable accessory.

The technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.

Disclosure of Invention

The object of the utility model is a branch piecing devices for frequency conversion coaxial power cable.

In order to overcome the technical defect, the utility model aims at providing a branch joint device for frequency conversion coaxial power cable, consequently improved frequency conversion coaxial power cable's the effect of connection.

In order to achieve the purpose, the utility model adopts the technical proposal that: the device comprises a middle conductive piece used for butting the frequency conversion coaxial power cable, a pouring cylinder shell arranged on the middle conductive piece and used as a shell of the middle conductive piece, and a rubber stress cone arranged in the pouring cylinder shell and used for fixing the frequency conversion coaxial power cable.

Because middle conductive piece, pouring barrel shell and rubber stress cone have been designed, through pouring barrel shell, realized holding fixedly middle conductive piece, through middle conductive piece, realized connecting two frequency conversion coaxial power cable that are the diameter differentiation, through rubber stress cone, realized being connected frequency conversion coaxial power cable and pouring barrel shell, consequently improved frequency conversion coaxial power cable's connecting effect.

The utility model discloses a, according to the mode that two frequency conversion coaxial power cable that are the diameter differentiation carry out the connection middle electrically conductive piece, pouring bobbin case and rubber stress cone hookup each other.

The utility model discloses a, according to the mode that is realized being two frequency conversion coaxial power cable that are the diameter differentiation and carry out the connection by middle pipeline middle electrically conductive piece and pouring bobbin case and rubber stress cone hookup.

The utility model discloses a, still include first annex device and first annex device sets up in the pouring barrel shell, and first annex device sets up to include first plug piece, second plug piece, first electrically conductive section of thick bamboo, the electrically conductive section of thick bamboo of second, first locating piece and second locating piece.

The utility model discloses a, still include second annex device and second annex device sets up in pouring barrel shell, and second annex device sets up to include and increases in the first ware and the second and climbs the ware.

The utility model discloses a, still include third annex device and third annex device sets up in the pouring barrel shell, and third annex device sets up to including first rubber sleeve and second rubber sleeve.

The utility model discloses a, still include fourth accessory device and fourth accessory device sets up on first accessory device, and fourth accessory device sets up to the cable.

The utility model discloses a, still include fifth annex device and fifth annex device sets up in the pouring cylinder shell, and fifth annex device sets up to sealed tail pipe.

The utility model discloses a, be provided with middle electrically conductive piece respectively on pouring barrel shell, first plug spare and second plug spare, it climbs the ware to be provided with first interior increasing respectively between middle electrically conductive piece and first plug spare, first electrically conductive section of thick bamboo and first locating piece and increase respectively in being provided with the second between middle electrically conductive piece and second plug spare and climb the ware, electrically conductive section of thick bamboo of second and second locating piece, the rubber stress awl sets up in pouring barrel shell and first rubber sleeve and second rubber sleeve set up respectively and increase in climbing the ware in first interior increasing and climbing ware and second, be provided with the cable between first plug spare and second plug spare.

The utility model discloses a, the pouring bobbin case sets up to including the section of thick bamboo portion, first mouth and second mouth and one of them tip in side of section of thick bamboo portion sets up to hookup with first mouth, the side intermediate part of section of thick bamboo portion sets up to hookup with the second mouth and be provided with middle mounting hole body in the intermediate part of section of thick bamboo portion, be provided with first straight mounting hole body and first awl mounting hole body respectively and be provided with second straight mounting hole body and second toper mounting hole body respectively at one of them end of section of thick bamboo portion, one of them port portion of middle mounting hole body sets up to hookup with the inner port portion of first straight mounting hole body and the outer port portion hookup of first straight mounting hole body sets up to the inner port portion with first awl mounting hole body and the inner port portion hookup of first mouth portion, one of them other port portion of middle mounting hole body sets up to hookup with the inner port portion of second straight mounting hole body and the outer port portion of second straight mounting hole body sets up to the second The side face of the middle mounting hole body is set to be connected with the inner port of the second mouth, the middle mounting hole body, the inner port of the first straight mounting hole body and the inner port of the second straight mounting hole body are respectively set to be connected with the middle conductive piece, the first straight mounting hole body is set to be connected with the first inner climbing device, the outer port of the first straight mounting hole body is set to be connected with the first plug-pull piece, the second straight mounting hole body is set to be connected with the second inner climbing device, the outer port of the second straight mounting hole body is set to be connected with the second plug-pull piece, the first cone mounting hole body and the second cone mounting hole body are respectively set to be connected with the rubber stress cone, the first mouth body is set to be connected with the first single-core cable, the second mouth body is set to be connected with the second single-core cable, the cylinder part is set to be an epoxy resin tube body, the middle mounting hole body, the first straight mounting hole body and the second straight mounting hole body are respectively set to be cylindrical holes, the middle mounting, The first straight mounting hole body and the second straight mounting hole body are arranged to be distributed in a stepped hole, the first conical mounting hole body and the second conical mounting hole body are arranged to be conical hole-shaped bodies, the first nozzle portion and the second nozzle portion are respectively arranged to be conical tube-shaped bodies, and the expanding portion of the first nozzle portion and the expanding portion of the second nozzle portion are respectively arranged to be coupled with the tube portion.

The utility model designs a middle conductive piece which comprises a contraction pipe part, a first expansion pipe part and a second expansion pipe part, wherein the end heads of the contraction pipe part are respectively connected with the first expansion pipe part and the second expansion pipe part, the outer side surface part of the contraction pipe part, the outer surface of first expansion pipe portion and the lateral surface of second expansion pipe portion set up respectively to be linked to and one of them port portion of shrink tube portion sets up to hold the formula hookup with the inner conductor of first frequency conversion coaxial power cable with the pouring shell, wherein another port portion of shrink tube portion sets up to hold the formula hookup and first expansion pipe portion set up to hold the formula hookup with first interior climbing ware with the inner conductor of second frequency conversion coaxial power cable, second expansion pipe portion sets up to hold the formula hookup and shrink tube portion with the interior climbing ware of second, first expansion pipe portion and second expansion pipe portion set up respectively to circular tube-shaped body.

The utility model discloses a, first plug spare and second plug spare set up to the P font platelike body and first plug spare and second plug spare set up respectively to the embedded hookup with the pouring cylinder shell, the vertical end of first plug spare and the vertical end of second plug spare set up respectively to the lateral surface portion that extends to the pouring cylinder shell and the vertical end of first plug spare and second plug spare set up respectively to hookup with the cable, the pipe portion of first plug spare sets up to with first interior increasing climbs the ware, first electrically conductive section of thick bamboo and first locating piece hold the formula hookup and the pipe portion of second plug spare set up to with the second interior increasing climbs the ware, electrically conductive section of thick bamboo of second and second locating piece hold the formula hookup.

The utility model discloses a, increase in first interior ware and the second and climb the ware and set up respectively to the pyrocondensation ware and increase in first interior ware and the second and climb the ware and set up respectively to the embedded hookup with the pouring cylinder shell, increase in first interior the inner oral area of climbing the ware and set up to and couple with first plug spare with middle electrically conductive piece and the outer oral area of first interior ware that increases, increase in the second and climb the inner oral area of ware and set up to and couple with second plug spare with middle electrically conductive piece hookup and the outer oral area of second interior ware that increases, increase respectively in first interior ware and the second and climb the ware and set up to holding formula hookup with first rubber sleeve and second rubber sleeve.

The utility model discloses a, first electrically conductive section of thick bamboo and second electrically conductive section of thick bamboo set up to the copper ring shape body respectively and the lateral surface portion of first electrically conductive section of thick bamboo set up to hookup with first plug contact, the outer end terminal surface portion of first electrically conductive section of thick bamboo sets up to hookup with first locating piece contact and the centre bore body of first electrically conductive section of thick bamboo sets up to the inner conductor hookup with first frequency conversion coaxial power cable, the lateral surface portion of second electrically conductive section of thick bamboo sets up to hookup with second plug contact, the outer end terminal surface portion of second electrically conductive section of thick bamboo sets up to hookup with second locating piece contact and the centre bore body of second electrically conductive section of thick bamboo sets up to the inner conductor hookup with second frequency conversion coaxial power cable.

The utility model discloses a, first locating piece and second locating piece set up respectively to the annular block body of rubber and the lateral surface portion of first locating piece sets up to hookup with first plug piece contact, the inner end terminal surface portion of first locating piece sets up to hookup with first conductive tube contact and the centre bore body of first locating piece sets up to hookup with the inner conductor of first frequency conversion coaxial power cable, the lateral surface portion of second locating piece sets up to hookup with second plug piece contact, the inner end terminal surface portion of second locating piece sets up to hookup with second conductive tube contact and the centre bore body of second locating piece sets up to hookup with the inner conductor of second frequency conversion coaxial power cable, the outer end terminal surface portion of first locating piece and the outer end terminal surface portion of second locating piece set up respectively to connect with the conical contact formula of rubber stress hookup.

The utility model discloses a, rubber stress cone set up to with the embedded hookup of pouring barrel shell and rubber stress cone sets up respectively to cup joint formula hookup with first frequency conversion coaxial power cable and second frequency conversion coaxial power cable, the inner terminal surface portion of one of them rubber stress cone set up to with first locating piece contact hookup and wherein the inner terminal surface portion of another rubber stress cone set up to with second locating piece contact hookup.

The utility model discloses a, first rubber sleeve sets up to fusiform rubber tube and first rubber sleeve sets up respectively to coupleing with first frequency conversion coaxial power cable's inner conductor intermediate part and second frequency conversion coaxial power cable's inner conductor intermediate part, and first rubber sleeve sets up respectively to increasing the embedded hookup of ware in climbing ware and the second in with first.

The utility model discloses a, the second rubber sleeve sets up to umbrella-type rubber tube and the second rubber sleeve sets up respectively to the inner conductor end with first frequency conversion coaxial power cable and the inner conductor end hookup of second frequency conversion coaxial power cable, and the second rubber sleeve sets up respectively to increase respectively in with first and climb the embedded hookup of ware in ware and the second.

The utility model discloses a, the cable sets up to single core cable and one of them end of cable sets up to hookup with first plug, and wherein another end of cable sets up to hookup with second plug.

The utility model designs a pouring cylinder shell, a rubber stress cone and a middle conductive piece are arranged to be distributed according to the mode of butt joint connection, and the pouring cylinder shell, the rubber stress cone, the middle conductive piece, a first plug piece, a first conductive cylinder, a second conductive cylinder, a first positioning block and a second positioning block are arranged to be distributed according to the mode of forming three-point support connection, the pouring cylinder shell, the rubber stress cone, the middle conductive piece, the first plug piece, the second plug piece, the first conductive cylinder, the second conductive cylinder, the first positioning block and the second positioning block are arranged to be distributed according to the mode of internal isolation protection, and the pouring cylinder shell, the rubber stress cone, the middle conductive piece, the first plug piece, the second plug piece, the first conductive cylinder, the second conductive cylinder, the first positioning block and the second positioning block are arranged to be distributed according to the mode of external communication protection, the center line of the pouring cylinder shell, the center line of the middle conductive piece, the center line of the first inner climbing device, the center line of the second inner climbing device, the center line of the first conductive cylinder, the center line of the second conductive cylinder, the center line of the rubber stress cone, the center line of the first rubber sleeve, the center line of the second rubber sleeve, the center line of the first locating block, the center line of the second locating block, the center line of the first frequency conversion coaxial power cable and the center line of the second frequency conversion coaxial power cable are arranged on the same straight line, one rubber stress cone, one first rubber sleeve and one second rubber sleeve are arranged to form a group of sleeving parts, one group of sleeving parts is arranged between the first frequency conversion coaxial power cable and the pouring cylinder shell, the other group of sleeving parts is arranged between the second frequency conversion coaxial power cable and the pouring cylinder shell, the contraction pipe part is arranged to be connected with the middle mounting hole body, the first expansion pipe portion is provided in the first straight installation hole body, and the second expansion pipe portion is provided in the second straight installation hole body.

The utility model discloses a, the inner end of sealed tail pipe sets up to hookup with pouring cylinder shell mosaic, and the centre bore body of sealed tail pipe sets up respectively to hookup with first frequency conversion coaxial power cable and second frequency conversion coaxial power cable, and sealed tail pipe sets up to T font rubber tubulose.

The technical effects of the utility model reside in that: the cable is applied to the voltage classes of 400V, 10kV, 20kV and 35kV, the power is applied to the cable at 0-300 Hz, the input waveform is a square wave, and the cross section of the cable is distributed to 400mm²/400mm²The cable has different conditions of coaxial cable to coaxial cable, single-core branch cable and the like, and different section reducing butt joint and the like in practical application, the butt joint of the coaxial cable inner core cable adopts an indoor terminal or similar terminal structure, the product length is determined according to the requirements of indoor terminals of various voltage classes of relevant standards, an inner climbing (integral or split bonding) structure can be adopted to shorten the product size, the inner conductor is connected by adopting a hexagonal confining pressure or a plug-pull type or a bolt pressing type, the butt joint of the coaxial cable outer core cable adopts a spring pressing inner cone type structure, the conductor is connected by adopting an outer core conductor inner half or round non-magnetic high-strength metal material lining (ensuring that the inner core cable is not pressed), the outer surface adopts high-strength metal meeting the conductive performance to press the outer core cable conductor on the metal lining, and the requirements of current-carrying capacity can be met at the same time, when two ends of the branch joint are coaxial cables, the same (different) diameter butt joint is met, and single-core branch cables with different sections are simultaneously met, and the outer cone (European style) plug-in type or inner cone type connection is adopted; the end without wiring is sealed by insulating plugging by an insulating cap or an insulating plug, when the single-core cable A1 of the power receiving side wiring adopts a terminal to be butted with an inner core cable of a coaxial cable branch joint, the single-core cable A2 adopts an outer cone (European style) plug cable head or an inner cone type plug cable head to be butted with an outer core cable of the coaxial cable branch joint; the end without wiring is sealed by insulating plugging by an insulating cap or an insulating plug,similarly, the single-core cable B1 of the outgoing line at the power transmission side is butted with an inner core cable of a coaxial cable branch joint by adopting a terminal, and the single-core cable B2 is butted with an outer core cable of the coaxial cable branch joint by adopting an outer cone (European style) plug cable head or an inner cone type plug cable head; the end without wiring is sealed by insulating cap or plug, and the branch joint can be made into two structures of direct connection and insulation.

In this technical scheme, pouring barrel casing, middle electrically conductive piece and rubber stress cone are basic part, also the utility model discloses a necessary technical feature, first plug spare, second plug spare, increase in first, increase in the second and climb the ware, increase in the second and climb a ware, first electrically conductive section of thick bamboo, the electrically conductive section of thick bamboo of second, first rubber sleeve, second rubber sleeve and cable, first locating piece and second locating piece are functional unit, are the realization the utility model discloses a characteristic of other technological effects, the design of section of thick bamboo portion, middle mounting hole body, first straight mounting hole body, first awl mounting hole body, the straight mounting hole body of second, second toper mounting hole body, first mouth, second mouth, shrink tube portion, first extension tube portion and second extension tube portion these technical features is the technical feature who accords with the patent law and implement the rule.

In the technical scheme, the middle conductive piece, the pouring cylinder shell and the rubber stress cone which are used for connecting the two variable-frequency coaxial power cables with different diameters are important technical characteristics, and have novelty, creativity and practicability in the technical field of branch joint devices for the variable-frequency coaxial power cables, and terms in the technical scheme can be explained and understood by patent documents in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a schematic view of the present invention,

figure 2 is a top view of figure 1,

figure 3 is a right side view of figure 1,

a casting cylinder shell-1, an intermediate conductive piece-2, a first plug-pull piece-3, a second plug-pull piece-4, a first inner creeper-5, a second inner creeper-6, a first conductive cylinder-7, a second conductive cylinder-8, a rubber stress cone-9, a first rubber sleeve-91, a second rubber sleeve-92, a cable-93, a first positioning block-94, a second positioning block-95, a first single-core cable-30, a second single-core cable-40, a first variable frequency coaxial power cable-10, a second variable frequency coaxial power cable-20, a cylinder-11, an intermediate mounting hole-12, a first straight mounting hole-13, a first cone mounting hole-14, a second straight mounting hole-15, a second cone mounting hole-16, a first mouth-17, a second cone-mounting hole-12, a first straight mounting hole-13, a first cone mounting hole-14, a second straight mounting hole-15, a second cone mounting hole-16, A second mouth part-18, a contracted pipe part-21, a first expanded pipe part-22 and a second expanded pipe part 23.

Detailed Description

Terms such as "having," "including," and "comprising," as used herein with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the purchased product specification or follow the conventional method in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is one of the first embodiment of the present invention, combine the figure to specifically explain this embodiment, include pouring cylinder shell 1, middle conductive piece 2, first plug piece 3, second plug piece 4, first interior climbing device 5 that increases, second interior climbing device 6 that increases, first conductive section of thick bamboo 7, second conductive section of thick bamboo 8, rubber stress cone 9, first rubber sleeve 91, second rubber sleeve 92, cable 93, first locating piece 94 and second locating piece 95 and be provided with middle conductive piece 2 respectively on pouring cylinder shell 1, first plug piece 3 and second plug piece 4, be provided with first interior climbing device 5 that increases between middle conductive piece 2 and first plug piece 3 respectively, first conductive section of thick bamboo 7 and first locating piece 94 and be provided with second interior climbing device 6 that increases respectively between middle conductive piece 2 and second plug piece 4, second conductive section of thick bamboo 8 and second locating piece 95, rubber cone stress 9 sets up in pouring cylinder shell 1 and first rubber sleeve 91 and second rubber sleeve 92 set up respectively in first rubber sleeve 91 In the crawler 5 and the second inner crawler 6, a cable 93 is arranged between the first plug part 3 and the second plug part 4.

In the present embodiment, the pouring cylinder case 1 is configured to include a cylinder portion 11, a first mouth portion 17 and a second mouth portion 18, and one end portion of a side surface of the cylinder portion 11 is configured to be coupled with the first mouth portion 17, a side surface middle portion of the cylinder portion 11 is configured to be coupled with the second mouth portion 18, and an intermediate mounting hole body 12 is configured to be disposed at a middle portion of the cylinder portion 11, a first straight mounting hole body 13 and a first taper mounting hole body 14 are respectively disposed at one end of the cylinder portion 11, and a second straight mounting hole body 15 and a second taper mounting hole body 16 are respectively disposed at the other end of the cylinder portion 11, one end portion of the intermediate mounting hole body 12 is configured to be coupled with an inner end port portion of the first straight mounting hole body 13 and an outer end port portion of the first taper mounting hole body 13 is configured to be coupled with an inner end port portion of the first taper mounting hole body 14 and an inner end port portion of the first mouth portion 17, and the other end portion of the intermediate mounting hole body 12 An outer end opening portion of the straight installation hole body 15 is provided to be coupled with an inner end opening portion of the second cone installation hole body 16, a side surface portion of the middle installation hole body 12 is provided to be coupled with an inner end opening portion of the second mouth portion 18 and the middle installation hole body 12, an inner end opening portion of the first straight installation hole body 13 and an inner end opening portion of the second straight installation hole body 15 are provided to be coupled with the middle conductive member 2, respectively, the first straight installation hole body 13 is provided to be coupled with the first inner crawler 5 and an outer end opening portion of the first straight installation hole body 13 is provided to be coupled with the first plug member 3, the second straight installation hole body 15 is provided to be coupled with the second inner crawler 6 and an outer end opening portion of the second straight installation hole body 15 is provided to be coupled with the second plug member 4, the first cone installation hole body 14 and the second cone installation hole body 16 are provided to be coupled with the rubber stress cone 9 and the first mouth portion 17 is provided to be coupled, the second mouth 18 is provided to be coupled with the second single core cable 40 and the barrel portion 11 is provided as an epoxy resin tubular body, the intermediate mounting hole body 12, the first straight mounting hole body 13, and the second straight mounting hole body 15 are provided as columnar holes and the intermediate mounting hole body 12, the first straight mounting hole body 13, and the second straight mounting hole body 15 are provided to be distributed in a stepped hole, respectively, the first taper mounting hole body 14 and the second taper mounting hole body 16 are provided as taper hole bodies, the first mouth 17 and the second mouth 18 are provided as taper hole bodies, respectively, and the expanded portion of the first mouth 17 and the expanded portion of the second mouth 18 are provided to be coupled with the barrel portion 11, respectively.

Through the pouring cylinder shell 1, a middle conductive piece 2, a first plugging piece 3, a second plugging piece 4 and a first inner climbing device 5 are formed, increase in the second and climb ware 6, rubber stress cone 9, the support tie point of first single core cable 30 and second single core cable 40, by middle mounting hole body 12, realized being connected with middle conductive piece 2, by first always installing hole body 13, realized being connected with first plug 3, realized being connected with first interior increase climber 5, by second always installing hole body 15, realized being connected with second plug 4, realized being connected with second interior increase climber 6, by first awl mounting hole body 14 and second cone mounting hole body 16, realized being connected with rubber stress cone 9, by first mouth 17, realized being connected with first single core cable 30, by second mouth 18, realized being connected with second single core cable 40, its technical aim lies in: the supporting carrier is used for supporting the middle conducting piece 2, the first plugging piece 3, the second plugging piece 4, the first inner climbing device 5, the second inner climbing device 6, the rubber stress cone 9, the first single-core cable 30 and the second single-core cable 40.

In the present embodiment, the middle conductive member 2 is configured to include a contracted pipe portion 21, a first expanded pipe portion 22 and a second expanded pipe portion 23, and the ends of the contracted pipe portion 21 are respectively configured to be coupled with the first expanded pipe portion 22 and the second expanded pipe portion 23, the outer side surface portion of the contracted pipe portion 21, the outer side surface portion of the first expanded pipe portion 22 and the outer side surface portion of the second expanded pipe portion 23 are respectively configured to be coupled with the pouring cylindrical shell 1 and one port portion of the contracted pipe portion 21 is configured to be accommodatively coupled with the inner conductor of the first variable frequency coaxial power cable 10, the other port portion of the contracted pipe portion 21 is configured to be accommodatively coupled with the inner conductor of the second variable frequency coaxial power cable 20 and the first expanded pipe portion 22 is configured to be accommodatively coupled with the first inner creeper 5, and the second expanded pipe portion 23 is configured to be accommodatively coupled with the second inner, The first expansion pipe portion 22 and the second expansion pipe portion 23 are respectively provided as circular cylindrical bodies.

Through the middle conducting piece 2, a supporting connection point for the pouring cylinder shell 1, the first inner climbing device 5, the second inner climbing device 6, the first variable-frequency coaxial power cable 10 and the second variable-frequency coaxial power cable 20 is formed, the connection with the pouring cylinder shell 1 is realized by the contraction pipe part 21, the first expansion pipe part 22 and the second expansion pipe part 23, the connection with the first inner climbing device 5 is realized by the first expansion pipe part 22, the connection with the second inner climbing device 6 is realized by the second expansion pipe part 23, the connection with the first variable-frequency coaxial power cable 10 is realized by the contraction pipe part 21, the connection with the second variable-frequency coaxial power cable 20 is realized, the connection with the rubber stress cone 9 is realized by the first cone mounting hole body 14 and the second cone mounting hole body 16, the connection with the first single-core cable 30 is realized by the first mouth part 17, the connection with the second single-core cable 40 is realized by the second mouth part 18, the technical purpose is as follows: as a means for interfacing the first variable frequency coaxial power cable 10 and the second variable frequency coaxial power cable 20.

In this embodiment, the first plug-pull piece 3 and the second plug-pull piece 4 are arranged to be P-shaped plate-shaped bodies, the first plug-pull piece 3 and the second plug-pull piece 4 are respectively arranged to be in embedded connection with the pouring cylinder shell 1, the vertical end of the first plug-pull piece 3 and the vertical end of the second plug-pull piece 4 are respectively arranged to extend to the outer side surface portion of the pouring cylinder shell 1, the vertical end of the first plug-pull piece 3 and the vertical end of the second plug-pull piece 4 are respectively arranged to be connected with the cable 93, the pipe portion of the first plug-pull piece 3 is arranged to be in accommodating connection with the first inner climbing device 5, the first conductive cylinder 7 and the first positioning block 94, and the pipe portion of the second plug-pull piece 4 is arranged to be in accommodating connection with the second inner climbing device 6, the second conductive cylinder 8 and the second.

Through first plug spare 3 and second plug spare 4, formed to pouring cylinder shell 1, increase in the first ware 5 of climbing, increase in the second and climb ware 6, first electrically conductive section of thick bamboo 7, electrically conductive section of thick bamboo 8 of second, the support tie point of first locating piece 94 and second locating piece 95, by first plug spare 3 and second plug spare 4, realized being connected with pouring cylinder shell 1, by first plug spare 3, realized with first in increase climb the being connected of ware 5, realized being connected with first electrically conductive section of thick bamboo 7, realized being connected with first locating piece 94, by second plug spare 4, realized increasing in the second and climb the being connected of ware 6, realized being connected with electrically conductive section of thick bamboo 8 of second, realized being connected with second locating piece 95, its technical aim at: the device is used as a support carrier for a first inner climbing device 5, a second inner climbing device 6, a first conductive cylinder 7, a second conductive cylinder 8, a first positioning block 94 and a second positioning block 95.

In this embodiment, the first inner climbing-increasing device 5 and the second inner climbing-increasing device 6 are respectively set as a thermal shrinkage climbing-increasing device, the first inner climbing-increasing device 5 and the second inner climbing-increasing device 6 are respectively set to be in embedded connection with the pouring cylinder shell 1, the inner port of the first inner climbing-increasing device 5 is set to be connected with the middle conductive piece 2, the outer port of the first inner climbing-increasing device 5 is set to be connected with the first plug-pull piece 3, the inner port of the second inner climbing-increasing device 6 is set to be connected with the middle conductive piece 2, the outer port of the second inner climbing-increasing device 6 is set to be connected with the second plug-pull piece 4, and the first inner climbing-increasing device 5 and the second inner climbing-increasing device 6 are respectively set to be in accommodating connection with the first rubber sleeve 91 and the second rubber sleeve 92.

Increase in climbing ware 5 and the second through first, formed to pouring cartridge case 1, middle electrically conductive 2, first plug spare 3, second plug spare 4, the support tie point of first rubber sleeve 91 and second rubber sleeve 92, increase climbing ware 6 in climbing ware 5 and the second by first interior increase, realized being connected with pouring cartridge case 1, realized being connected with middle electrically conductive 2, realized being connected with first rubber sleeve 91, realized being connected with second rubber sleeve 92, increase climbing ware 5 by first interior, realized being connected with first plug spare 3, increase climbing ware 6 in by the second, realized being connected with second plug spare 4, its technical purpose lies in: as a means for connecting between the intermediate conductor 2 and the first plug member 3, and between the intermediate conductor 2 and the second plug member 4.

In the present embodiment, the first conductive cylinder 7 and the second conductive cylinder 8 are respectively configured as a copper annular block and the outer side surface portion of the first conductive cylinder 7 is configured to be in contact connection with the first plug 3, the outer end surface portion of the first conductive cylinder 7 is configured to be in contact connection with the first positioning block 94 and the middle hole body of the first conductive cylinder 7 is configured to be in connection with the inner conductor of the first variable frequency coaxial power cable 10, the outer side surface portion of the second conductive cylinder 8 is configured to be in contact connection with the second plug 4, the outer end surface portion of the second conductive cylinder 8 is configured to be in contact connection with the second positioning block 95 and the middle hole body of the second conductive cylinder 8 is configured to be in connection with the inner conductor of the second variable frequency coaxial power cable 20.

Through the electrically conductive section of thick bamboo 8 of first electrically conductive section of thick bamboo 7 and second, formed first plug piece 3, second plug piece 4, the support tie point of first locating piece 94 and second locating piece 95, by first electrically conductive section of thick bamboo 7, realized being connected with first plug piece 3, realized being connected with first locating piece 94, by the electrically conductive section of thick bamboo 8 of second, realized being connected with second plug piece 4, realized being connected with second locating piece 95, its technical aim lies in: the connecting device is used as one of the parts for connecting the first variable frequency coaxial power cable 10 and the first plug-in piece 3 and connecting the second variable frequency coaxial power cable 20 and the second plug-in piece 4.

In the present embodiment, the first positioning block 94 and the second positioning block 95 are respectively configured as a rubber annular block, and an outer side surface portion of the first positioning block 94 is configured to be in contact connection with the first plug-pull piece 3, an inner end surface portion of the first positioning block 94 is configured to be in contact connection with the first conductive barrel 7, and a middle hole body of the first positioning block 94 is configured to be in connection with the inner conductor of the first variable frequency coaxial power cable 10, an outer side surface portion of the second positioning block 95 is configured to be in contact connection with the second plug-pull piece 4, an inner end surface portion of the second positioning block 95 is configured to be in contact connection with the second conductive barrel 8, and a middle hole body of the second positioning block 95 is configured to be in connection with the inner conductor of the second variable frequency coaxial power cable 20, and an outer end surface portion of the first positioning block 94 and an outer end surface portion of the second positioning block 95 are.

Through first locating piece 94 and second locating piece 95, formed first plug 3, second plug 4, first electrically conductive section of thick bamboo 7, the support tie point of electrically conductive section of thick bamboo 8 of second and rubber stress awl 9, by first locating piece 94, realized being connected with first plug 3, realized being connected with first electrically conductive section of thick bamboo 7, by second locating piece 95, realized being connected with second plug 4, realized being connected with electrically conductive section of thick bamboo 8 of second, by first locating piece 94 and second locating piece 95, realized being connected with rubber stress awl 9, its technical purpose lies in: and a second part for connecting the first variable frequency coaxial power cable 10 and the first plug 3 and the second variable frequency coaxial power cable 20 and the second plug 4.

In this embodiment, the rubber stress cones 9 are arranged to be in embedded connection with the casting cylinder shell 1 and the rubber stress cones 9 are respectively arranged to be in socket connection with the first variable frequency coaxial power cable 10 and the second variable frequency coaxial power cable 20, wherein an inner end surface portion of one of the rubber stress cones 9 is arranged to be in contact connection with the first positioning block 94 and an inner end surface portion of the other rubber stress cone 9 is arranged to be in contact connection with the second positioning block 95.

Through rubber stress cone 9, formed the support tie point to pouring cylinder shell 1, first locating piece 94 and second locating piece 95, by rubber stress cone 9, realized being connected with pouring cylinder shell 1, realized being connected with first electrically conductive section of thick bamboo 7, realized being connected with first locating piece 94, realized being connected with second locating piece 95, its technical aim at: the connecting component is used for connecting the first variable frequency coaxial power cable 10 and the casting drum shell 1 and connecting the second variable frequency coaxial power cable 20 and the casting drum shell 1.

In the present embodiment, the first rubber sleeve 91 is a spindle-shaped rubber tube and the first rubber sleeve 91 is respectively configured to couple with the middle portion of the inner conductor of the first frequency conversion coaxial power cable 10 and the middle portion of the inner conductor of the second frequency conversion coaxial power cable 20, and the first rubber sleeve 91 is respectively configured to be in embedded connection with the first inner climbing aid 5 and the second inner climbing aid 6.

Through first rubber sleeve 91, formed to increase in the first and climb the support tie point of ware 6 in ware 5 and the second, by first rubber sleeve 91, realized increasing in with the first and climb the connection of ware 5, realized increasing in with the second and climb the connection of ware 6, its technical aim at: as one of the means for locating the first variable frequency coaxial power cable 10 in the first inner crawler 5 and the second variable frequency coaxial power cable 20 in the second inner crawler 6.

In this embodiment, the second rubber sleeve 92 is configured as an umbrella-shaped rubber tube, the second rubber sleeve 92 is configured to be respectively coupled to the end of the inner conductor of the first frequency conversion coaxial power cable 10 and the end of the inner conductor of the second frequency conversion coaxial power cable 20, and the second rubber sleeve 92 is respectively configured to be in embedded connection with the first inner climbing aid 5 and the second inner climbing aid 6.

Through second rubber sleeve 92, formed to increase in the first and climb the support tie point of ware 6 in ware 5 and the second, by second rubber sleeve 92, realized increasing in with the first being connected of climbing ware 5, realized increasing in with the second and climb being connected of ware 6, its technical aim at: and a second component for positioning the first variable frequency coaxial power cable 10 in the first inner creeper 5 and the second variable frequency coaxial power cable 20 in the second inner creeper 6.

In the present exemplary embodiment, the cable 93 is provided as a single-core cable and one end of the cable 93 is provided for coupling with the first plug part 3 and the other end of the cable 93 is provided for coupling with the second plug part 4.

Through cable 93, formed the support tie point to first plug 3 and second plug 4, by cable 93, realized being connected with first plug 3, realized being connected with second plug 4, its technical aim at: as a means for connecting the first plug part 3 to the second plug part 4.

In this embodiment, the pouring cylinder shell 1, the rubber stress cone 9 and the middle conductive member 2 are arranged to be distributed in a butt joint connection manner, and the pouring cylinder shell 1, the rubber stress cone 9, the middle conductive member 2, the first plug-pull member 3, the second plug-pull member 4, the first conductive cylinder 7, the second conductive cylinder 8, the first positioning block 94 and the second positioning block 95 are arranged to be distributed in a three-point supporting connection manner, and the pouring cylinder shell 1, the rubber stress cone 9, the middle conductive member 2, the first plug-pull member 3, the second plug-pull member 4, the first conductive cylinder 7, the second conductive cylinder 8, the first positioning block 94, the second positioning block 95, the first inner climbing device 5, the second inner climbing device 6, the first rubber sleeve 91 and the second rubber sleeve 92 are arranged to be distributed in an internal isolation protection manner, and the pouring cylinder shell 1, the rubber stress cone 9, the middle conductive member 2, the first plug-pull member 3, the second conductive member 1, the first plug-pull member, The second plug-pull piece 4, the first conductive cylinder 7, the second conductive cylinder 8, the first positioning block 94, the second positioning block 95 and the cable 93 are arranged to be distributed according to an external communication protection mode, the center line of the casting cylinder shell 1, the center line of the middle conductive piece 2, the center line of the first inner climbing device 5, the center line of the second inner climbing device 6, the center line of the first conductive cylinder 7, the center line of the second conductive cylinder 8, the center line of the rubber stress cone 9, the center line of the first rubber sleeve 91, the center line of the second rubber sleeve 92, the center line of the first positioning block 94, the center line of the second positioning block 95, the center line of the first variable frequency coaxial power cable 10 and the center line of the second variable frequency coaxial power cable 20 are arranged on the same straight line, one rubber stress cone 9, one first rubber sleeve 91 and one second rubber sleeve 92 are arranged to form a set of sleeving parts, wherein one set of sleeving parts is arranged between the first variable frequency coaxial power cable 10 and the casting cylinder shell 1 and the set of sleeving parts is arranged The other set of the sheathing members is disposed between the second variable frequency coaxial power cable 20 and the pouring cylinder housing 1, the contraction tube part 21 is disposed to be coupled with the intermediate mounting hole body 12, the first expansion tube part 22 is disposed in the first straight mounting hole body 13, and the second expansion tube part 23 is disposed in the second straight mounting hole body 15.

In molding the pouring cylinder case 1, the middle conductive member 2, the first plug member 3 and the second plug member 4 are installed in a mold of the pouring cylinder case 1, epoxy resin is poured in the mold of the pouring cylinder case 1 to fix the middle conductive member 2, the first plug member 3 and the second plug member 4 in the cylinder part 11, when the first mono cable 30 and the second mono cable 40 are connected with the first inverter coaxial power cable 10 and the second inverter coaxial power cable 20, the tip of the first mono cable 30 and the tip of the second mono cable 40 are peeled off to expose the inner conductors of the first mono cable 30 and the second mono cable 40, the tip of the first mono cable 30 is inserted into the first nozzle part 17, the inner conductor of the first mono cable 30 is connected with the first plug member 3, the tip of the second mono cable 40 is inserted into the second nozzle part 18, the inner conductor of the second single-core cable 40 is connected with the second plug-pull piece 4, when the first frequency conversion coaxial power cable 10 is connected with the second frequency conversion coaxial power cable 20, the end head of the first frequency conversion coaxial power cable 10 is stripped from the end head of the second frequency conversion coaxial power cable 20, so that the inner conductor of the first frequency conversion coaxial power cable 10 and the inner conductor of the second frequency conversion coaxial power cable 20 are exposed, one of the rubber stress cones 9 is sleeved on the inner conductor of the first frequency conversion coaxial power cable 10 in the first step, the first positioning block 94 is sleeved on the second step, the first conductive cylinder 7 is sleeved on the third conductive cylinder 7, one of the first rubber sleeve 91 and the second rubber sleeve 92 is sleeved on the fourth step, the other one of the rubber stress cones 9 is sleeved on the inner conductor of the second frequency conversion coaxial power cable 20 in the first step, the second positioning block 95 is sleeved on the second conductive cylinder 8 is sleeved on the third step, and the second conductive cylinder 92 is sleeved on the inner conductor of the second, The fourth step is sleeved with another first rubber sleeve 91 and the fifth step is sleeved with another second rubber sleeve 92, the first inner climbing device 5 is installed in the first straight installation hole body 13, the second inner climbing device 6 is installed in the second straight installation hole body 15, the inner end of the first variable frequency coaxial power cable 10 is connected with the contraction pipe part 21, the first conductive cylinder 7 and the first positioning block 94 are connected with the first plug-pull piece 3, the rubber stress cone 9 on the first variable frequency coaxial power cable 10 is connected with the first cone installation hole body 14, the first rubber sleeve 91 and the second rubber sleeve 92 on the first variable frequency coaxial power cable 10 are installed in the first inner climbing device 5,

the inner end of a second variable frequency coaxial power cable 20 is connected with a contraction pipe part 21, a second conductive cylinder 8 and a second positioning block 95 are connected with a second plug-pull piece 4, a rubber stress cone 9 on the second variable frequency coaxial power cable 20 is connected with a second cone mounting hole body 16, a first rubber sleeve 91 and a second rubber sleeve 92 on the second variable frequency coaxial power cable 20 are mounted in a second inner creeper 6, the end of a cable 93 is stripped, the inner conductor of the cable 93 is exposed, one end inner conductor of the cable 93 is connected with a first plug-pull piece 3, and the other end inner conductor of the cable 93 is connected with a second plug-pull piece 4.

The second embodiment of the present invention, combine the figure to explain this embodiment specifically, include sealed tail pipe and the inner end of sealed tail pipe sets up to hookup with 1 embedded of pouring shell, and the centre bore body of sealed tail pipe sets up respectively to hookup with first frequency conversion coaxial power cable 10 and second frequency conversion coaxial power cable 20, and sealed tail pipe sets up to the T font rubber tubulose body.

Through sealed tail pipe, formed the support tie point to pouring cylinder shell 1, by sealed tail pipe, realized being connected with pouring cylinder shell 1, its technical aim at: the sealing device is used as a part for sealing between the first variable-frequency coaxial power cable 10 and the casting cylinder shell 1 and between the second variable-frequency coaxial power cable 20 and the casting cylinder shell 1.

The connection of the single core cable and the variable frequency coaxial power cable is realized by the first nozzle 17 and the second nozzle 18, and the connection of the variable frequency coaxial power cable with different diameters is realized by the serialization of the port diameters of the contraction tube part 21, the first expansion tube part 22 and the second expansion tube part 23.

The utility model discloses a second embodiment, according to the mode of connecting two frequency conversion coaxial power cable that are the diameter differentiation 2 middle conductive piece, pouring bobbin case 1 and the mutual hookup of rubber stress awl 9.

In this embodiment, the middle conductive member 2 is connected to the pouring cylinder shell 1 and the rubber stress cone 9 in such a way that the middle pipeline connects the two frequency-conversion coaxial power cables with different diameters.

In the present embodiment, a first accessory device is further included and disposed in the pouring cylinder housing 1, and the first accessory device is configured to include the first plug member 3, the second plug member 4, the first conductive cylinder 7, the second conductive cylinder 8, the first positioning block 94 and the second positioning block 95.

In this embodiment, a second accessory device is also included and is disposed in the pouring cylinder shell 1, the second accessory device being configured to include a first internal climbing attachment 5 and a second internal climbing attachment 6.

In this embodiment, a third attachment means is further included and is provided in the pouring cylinder shell 1, the third attachment means being provided to include the first rubber sleeve 91 and the second rubber sleeve 92.

In this embodiment, a fourth accessory device is also included and is disposed on the first accessory device, the fourth accessory device being disposed as a cable 93.

In this embodiment, a fifth attachment device is also included and is provided in the casting pot shell 1, which is provided to seal the tailpipe.

The second embodiment of the present invention is based on the first embodiment.

The utility model has the characteristics of down:

1. because middle electrically conductive piece 2, pouring barrel casing 1 and rubber stress awl 9 have been designed, through pouring barrel casing 1, realized containing fixedly middle electrically conductive piece 2, through middle electrically conductive piece 2, realized connecting two frequency conversion coaxial power cable that are the diameter differentiation, through rubber stress awl 9, realized being connected frequency conversion coaxial power cable and pouring barrel casing 1, consequently improved frequency conversion coaxial power cable's connection effect.

2. Due to the design of the first plug-pull piece 3, the second plug-pull piece 4, the first conductive cylinder 7, the second conductive cylinder 8, the first positioning block 94 and the second positioning block 95, the outer end connection of the frequency conversion coaxial power cable is realized.

3. Because the first internal climbing increasing device 5 and the second internal climbing increasing device 6 are designed, the internal protection of the frequency conversion coaxial power cable is realized.

4. Due to the design of the first rubber sleeve 91 and the second rubber sleeve 92, the frequency conversion coaxial power cable is internally isolated.

5. Due to the design of the cable 93, external protection of the variable frequency coaxial power cable is achieved.

6. Due to the design of the sealing tail pipe, the sealing of the variable-frequency coaxial power cable is realized.

7. Owing to designed and carried out numerical range's injecion to the knot configuration form, made numerical range do the utility model discloses a technical scheme in the technical scheme technical characteristics, not through the formula calculation or through the technical characteristics that the limited number of experiments reachs, the experiment shows that this numerical range's technical characteristics has obtained fine technological effect.

8. Owing to designed the utility model discloses a technical characteristic, in technical characteristic's the effect alone and mutual set, through experimental demonstration, the utility model discloses an each item performance index is 1.7 times at least for current each item performance index, has fine market value through the aassessment.

Still other technical features connected with the middle conductive member 2, the pouring cylinder shell 1 and the rubber stress cone 9 for connecting two frequency conversion coaxial power cables with different diameters are all one of the embodiments of the present invention, and the technical features of the above-mentioned embodiments can be arbitrarily combined, and in order to meet the requirements of patent laws, patent implementation rules and examination guidelines, all possible combinations of the technical features of the above-mentioned embodiments are not described again.

Therefore in the branch piecing devices technical field for frequency conversion coaxial power cable, all include be used for as the middle electrically conductive piece 2 that docks to frequency conversion coaxial power cable, set up in the middle of electrically conductive piece 2 and be used for as pouring barrel shell 1 of the casing of middle electrically conductive piece 2, set up in pouring barrel shell 1 and be used for carrying out the technical content of the rubber stress awl 9 fixed to frequency conversion coaxial power cable all be in the protection scope of the utility model.

Claims (10)

1. A branch piecing devices for frequency conversion coaxial power cable, characterized by: the frequency conversion coaxial power cable connector comprises a middle conductive piece (2) used for butting the frequency conversion coaxial power cable, a pouring cylinder shell (1) arranged on the middle conductive piece (2) and used as a shell of the middle conductive piece (2), and a rubber stress cone (9) arranged in the pouring cylinder shell (1) and used for fixing the frequency conversion coaxial power cable.

2. The branch joint device for variable frequency coaxial power cables according to claim 1, wherein: the middle conductive piece (2), the pouring cylinder shell (1) and the rubber stress cone (9) are connected with each other in a mode of connecting two frequency conversion coaxial power cables with different diameters.

3. The branch joint device for variable frequency coaxial power cables according to claim 2, wherein: the middle conductive piece (2) is connected with the pouring cylinder shell (1) and the rubber stress cone (9) according to a mode of connecting two frequency conversion coaxial power cables with different diameters by a middle pipeline.

4. The branch joint device for variable frequency coaxial power cables according to claim 1, wherein: also comprises a first accessory device which is arranged in the pouring cylinder shell (1), the first accessory device is arranged to comprise a first plug-pull piece (3), a second plug-pull piece (4), a first conductive cylinder (7), a second conductive cylinder (8), a first positioning block (94) and a second positioning block (95),

or a second accessory device is also included and is arranged in the pouring cylinder shell (1), the second accessory device is arranged to include a first internal climbing device (5) and a second internal climbing device (6),

or, a third attachment device is also included and arranged in the pouring cylinder shell (1), the third attachment device is arranged to include a first rubber sleeve (91) and a second rubber sleeve (92),

or, a fourth accessory device is included and disposed on the first accessory device, the fourth accessory device being configured as a cable (93),

or, a fifth attachment device is also included and is arranged in the casting cylinder shell (1), and the fifth attachment device is arranged to seal the tail pipe.

5. The branch joint device for variable frequency coaxial power cables according to claim 4, wherein: the device comprises a pouring cylinder shell (1), wherein a middle conductive piece (2), a first plugging piece (3) and a second plugging piece (4) are arranged on the pouring cylinder shell (1), a first inner climbing increasing device (5), a first conductive cylinder (7) and a first positioning block (94) are arranged between the middle conductive piece (2) and the first plugging piece (3), a second inner climbing increasing device (6), a second conductive cylinder (8) and a second positioning block (95) are arranged between the middle conductive piece (2) and the second plugging piece (4), a rubber stress cone (9) is arranged in the pouring cylinder shell (1), a first rubber sleeve (91) and a second rubber sleeve (92) are arranged in the first inner climbing increasing device (5) and the second inner climbing increasing device (6), and a cable (93) is arranged between the first plugging piece (3) and the second plugging piece (4).

6. The branch joint device for variable frequency coaxial power cables according to claim 5, wherein: the pouring cylinder shell (1) is provided with a cylinder part (11), a first nozzle part (17) and a second nozzle part (18), one end part of the side surface of the cylinder part (11) is provided to be connected with the first nozzle part (17), the middle part of the side surface of the cylinder part (11) is provided to be connected with the second nozzle part (18), a middle mounting hole body (12) is provided at the middle part of the cylinder part (11), a first straight mounting hole body (13) and a first cone mounting hole body (14) are respectively provided at one end head of the cylinder part (11), a second straight mounting hole body (15) and a second cone mounting hole body (16) are respectively provided at the other end head of the cylinder part (11), one port part of the middle mounting hole body (12) is provided to be connected with an inner end opening part of the first straight mounting hole body (13) and an outer end opening part of the first straight mounting hole body (13) is provided to be connected with an inner end opening part of the first cone mounting hole body (14) and an inner end opening part of the, the other port part of the middle mounting hole body (12) is connected with the inner port part of a second straight mounting hole body (15), the outer port part of the second straight mounting hole body (15) is connected with the inner port part of a second cone mounting hole body (16), the side surface part of the middle mounting hole body (12) is connected with the inner port part of a second mouth part (18) and the middle mounting hole body (12), the inner port part of a first straight mounting hole body (13) and the inner port part of the second straight mounting hole body (15) are respectively connected with a middle conductive piece (2), the first straight mounting hole body (13) is connected with a first inner climbing device (5) and the outer port part of the first straight mounting hole body (13) is connected with a first plug piece (3), the second straight mounting hole body (15) is connected with a second inner climbing device (6) and the outer port part of the second straight mounting hole body (15) is connected with a second plug piece (4), the first cone mounting hole body (14) and the second cone mounting hole body (16) are respectively arranged to be coupled with the rubber stress cone (9) and the first mouth part (17) is arranged to be coupled with the first single-core cable (30), the second mouth part (18) is connected with the second single core cable (40), the barrel part (11) is arranged to be an epoxy resin tubular body, the middle mounting hole body (12), the first straight mounting hole body (13) and the second straight mounting hole body (15) are respectively arranged to be columnar holes, the middle mounting hole body (12), the first straight mounting hole body (13) and the second straight mounting hole body (15) are arranged to be distributed in stepped holes, the first cone mounting hole body (14) and the second cone mounting hole body (16) are arranged to be conical hole bodies, the first nozzle (17) and the second nozzle (18) are respectively provided as a tapered tubular body and the expanded portion of the first nozzle (17) and the expanded portion of the second nozzle (18) are respectively provided to be coupled with the tube portion (11).

7. The branch joint device for variable frequency coaxial power cables according to claim 5, wherein: middle conductive piece (2) is set up to include shrink tube portion (21), first expansion tube portion (22) and second expansion tube portion (23) and the end of shrink tube portion (21) sets up respectively to be linked to with first expansion tube portion (22) and second expansion tube portion (23), the outside of shrink tube portion (21), the outside of first expansion tube portion (22) and the outside of second expansion tube portion (23) do not set up to be linked to casting barrel shell (1) and one of them port portion of shrink tube portion (21) sets up to hold the formula hookup with the inner conductor of first frequency conversion coaxial power cable (10), one of them port portion of shrink tube portion (21) sets up to hold the formula hookup with the inner conductor of second frequency conversion coaxial power cable (20) and first expansion tube portion (22) sets up to hold the formula hookup with first interior climbing ware (5), second expansion tube portion (23) sets up to hold the formula hookup with second interior climbing ware (6) and shrink tube portion (21) holds the formula hookup ) The first expansion pipe section (22) and the second expansion pipe section (23) are each provided as a circular cylindrical body.

8. The branch joint device for variable frequency coaxial power cables according to claim 5, wherein: the rubber stress cones (9) are connected with the casting cylinder shell (1) in an embedded mode, the rubber stress cones (9) are connected with the first frequency conversion coaxial power cable (10) and the second frequency conversion coaxial power cable (20) in a sleeved mode respectively, the end face of the inner end of one rubber stress cone (9) is connected with the first positioning block (94) in a contact mode, the end face of the inner end of the other rubber stress cone (9) is connected with the second positioning block (95) in a contact mode,

or the first plug-pull piece (3) and the second plug-pull piece (4) are arranged into a P-shaped plate-shaped body, the first plug-pull piece (3) and the second plug-pull piece (4) are respectively arranged to be in embedded connection with the pouring cylinder shell (1), the vertical end of the first plug-pull piece (3) and the vertical end of the second plug-pull piece (4) are respectively arranged to extend to the outer side surface part of the pouring cylinder shell (1), the vertical end of the first plug-pull piece (3) and the vertical end of the second plug-pull piece (4) are respectively arranged to be connected with the cable (93), the pipe part of the first plug-pull piece (3) is arranged to be in accommodating connection with the first inner climbing device (5), the first conductive pipe (7) and the first positioning block (94), and the pipe part of the second plug-pull piece (4) is arranged to be in accommodating connection with the second inner climbing device (6), the second conductive pipe (8) and the second positioning block (95),

or the first inner climbing device (5) and the second inner climbing device (6) are respectively set as a thermal shrinkage climbing device, the first inner climbing device (5) and the second inner climbing device (6) are respectively set to be connected with the pouring cylinder shell (1) in an embedded manner, the inner port of the first inner climbing device (5) is set to be connected with the middle conductive piece (2), the outer port of the first inner climbing device (5) is set to be connected with the first plugging piece (3), the inner port of the second inner climbing device (6) is set to be connected with the middle conductive piece (2), the outer port of the second inner climbing device (6) is set to be connected with the second plugging piece (4), the first inner climbing device (5) and the second inner climbing device (6) are respectively set to be connected with the first rubber sleeve (91) and the second rubber sleeve (92) in a holding manner,

or the first conductive cylinder (7) and the second conductive cylinder (8) are respectively arranged into a copper annular block body, the outer side surface part of the first conductive cylinder (7) is arranged to be in contact connection with the first plug-pull piece (3), the outer end surface part of the first conductive cylinder (7) is arranged to be in contact connection with the first positioning block (94), the middle hole body of the first conductive cylinder (7) is arranged to be in contact connection with the inner conductor of the first frequency conversion coaxial power cable (10), the outer side surface part of the second conductive cylinder (8) is arranged to be in contact connection with the second plug-pull piece (4), the outer end surface part of the second conductive cylinder (8) is arranged to be in contact connection with the second positioning block (95), and the middle hole body of the second conductive cylinder (8) is arranged to be in connection with the inner conductor of the second frequency conversion coaxial power cable (20),

or the first positioning block (94) and the second positioning block (95) are respectively arranged into rubber annular block bodies, the outer side surface part of the first positioning block (94) is arranged to be in contact connection with the first plug-pull piece (3), the inner end surface part of the first positioning block (94) is arranged to be in contact connection with the first conductive cylinder (7), the middle hole body of the first positioning block (94) is arranged to be in contact connection with the inner conductor of the first frequency conversion coaxial power cable (10), the outer side surface part of the second positioning block (95) is arranged to be in contact connection with the second plug-pull piece (4), the inner end surface part of the second positioning block (95) is arranged to be in contact connection with the second conductive cylinder (8), the middle hole body of the second positioning block (95) is arranged to be in connection with the inner conductor of the second frequency conversion coaxial power cable (20), the outer end surface part of the first positioning block (94) and the outer end surface part of the second positioning block (95) are respectively arranged to be in contact connection with the rubber stress cone (,

or the first rubber sleeve (91) is arranged to be a fusiform rubber tube, the first rubber sleeve (91) is respectively arranged to be connected with the middle part of the inner conductor of the first variable frequency coaxial power cable (10) and the middle part of the inner conductor of the second variable frequency coaxial power cable (20), the first rubber sleeve (91) is respectively arranged to be connected with the first inner climbing device (5) and the second inner climbing device (6) in an embedded manner,

or the second rubber sleeve (92) is arranged to be an umbrella-shaped rubber pipe, the second rubber sleeve (92) is respectively arranged to be connected with the end of the inner conductor of the first frequency conversion coaxial power cable (10) and the end of the inner conductor of the second frequency conversion coaxial power cable (20), the second rubber sleeve (92) is respectively arranged to be connected with the first inner climbing device (5) and the second inner climbing device (6) in an embedded manner,

or the cable (93) is arranged to be a single-core cable, one end of the cable (93) is arranged to be coupled with the first plug member (3), and the other end of the cable (93) is arranged to be coupled with the second plug member (4).

9. The branch joint device for variable frequency coaxial power cables according to any one of claims 1 to 8, wherein: the pouring cylinder shell (1), the rubber stress cone (9) and the middle conductive piece (2) are arranged to be distributed according to a butt joint connection mode, the pouring cylinder shell (1), the rubber stress cone (9), the middle conductive piece (2), the first plugging piece (3), the second plugging piece (4), the first conductive cylinder (7), the second conductive cylinder (8), the first positioning block (94) and the second positioning block (95) are arranged to be distributed according to a three-point supporting connection mode, the pouring cylinder shell (1), the rubber stress cone (9), the middle conductive piece (2), the first plugging piece (3), the second plugging piece (4), the first conductive cylinder (7), the second conductive cylinder (8), the first positioning block (94), the second positioning block (95), the first inner climbing device (5), the second inner climbing device (6), the first pouring rubber sleeve (91) and the second rubber sleeve (92) are arranged to be distributed according to an inner isolation protection mode, and the pouring cylinder shell (1) is arranged, The rubber stress cone (9), the middle conductive piece (2), the first plugging piece (3), the second plugging piece (4), the first conductive cylinder (7), the second conductive cylinder (8), the first positioning block (94), the second positioning block (95) and the cable (93) are distributed in a mode of external communication protection, the center line of the casting cylinder shell (1), the center line of the middle conductive piece (2), the center line of the first inner climbing device (5), the center line of the second inner climbing device (6), the center line of the first conductive cylinder (7), the center line of the second conductive cylinder (8), the center line of the rubber stress cone (9), the center line of the first rubber sleeve (91), the center line of the second rubber sleeve (92), the center line of the first positioning block (94), the center line of the second positioning block (95), the center line of the first frequency conversion coaxial power cable (10) and the center line of the second frequency conversion coaxial power cable (20) are arranged on the same straight line, a rubber stress cone (9), a first rubber sleeve (91) and a second rubber sleeve (92) are arranged to form a set of sleeved components, wherein one set of sleeved components is arranged between a first variable frequency coaxial power cable (10) and a casting cylinder shell (1) and another set of sleeved components is arranged between a second variable frequency coaxial power cable (20) and the casting cylinder shell (1), a contraction pipe part (21) is arranged to be connected with a middle mounting hole body (12), a first expansion pipe part (22) is arranged in a first straight mounting hole body (13), and a second expansion pipe part (23) is arranged in a second straight mounting hole body (15).

10. The branch joint device for variable frequency coaxial power cables according to claim 5, wherein: the inner end of the sealing tail pipe is connected with the pouring cylinder shell (1) in an embedded mode, the middle hole body of the sealing tail pipe is connected with the first frequency conversion coaxial power cable (10) and the second frequency conversion coaxial power cable (20) respectively, and the sealing tail pipe is a T-shaped rubber tubular body.

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