CN202159780U - Intermediate connecting joint for medium-pressure multi-core cable - Google Patents
Intermediate connecting joint for medium-pressure multi-core cable Download PDFInfo
- Publication number
- CN202159780U CN202159780U CN2011202496215U CN201120249621U CN202159780U CN 202159780 U CN202159780 U CN 202159780U CN 2011202496215 U CN2011202496215 U CN 2011202496215U CN 201120249621 U CN201120249621 U CN 201120249621U CN 202159780 U CN202159780 U CN 202159780U
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- heart yearn
- core
- multicore
- balance
- jointing
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Abstract
The utility model relates to an intermediate connecting joint for a medium-pressure multi-core cable. The intermediate connector comprises a connecting joint, a shell and an insulating balanced wedge cone, wherein the connecting joint is used realizing one-to-one butt joint of all structure layers of corresponding core wires of two multi-core cables; the shell is arranged at the outmost layer; and the insulating balanced wedge cone is arranged between the branched part of the core wires of the multi-core cables and the connecting joint, and comprises a conical head part and a cylindrical correction tail, channels are axially and uniformly arranged on the side surface of the balanced wedge cone, are suitable for the core wires to insert and can play a role in correcting the core wires, the number of the channels is consistent with that of the core wires, each channel consists of an open chute part which extends onto the side surface of the conical head part and is suitable for the core wires to smooth in, and the tip of the conical head part is suitable for being inserted into the center of a core wire cluster of the multi-core cable so as to lead the core wires in the core wire cluster to be separated uniformly along an oblique channel part and correct the separated core wires through the channels. The utility model provides the intermediate connecting joint for the medium-pressure multi-core cable, which can divide the core wires equally and prevent the core wires from being deformed and swelled in the process of dividing the core wires equally.
Description
Technical field
The utility model relates to a kind of cable connecting arrangement, specifically a kind of middle multicore cable transition joint of pressing.
Background technology
Along with the development of China's power construction, the continuous of electricity needs risen, and in order to reduce the power transmission and transformation cost and to reduce the power transmission and distribution loss, it has been very general that the direct entering of middle voltage source is carried out power distribution with electrfic centre.The medium-pressure power cable increasing demand increases, and is to need two or many power cables butt joints setting up electrical network, then according to the characteristic of the construction of cable; At joint each structure sheaf of cable is recovered; To guarantee the key property of cable, therefore, transition joint seems in this problem and is even more important.In the prior art, in the processing of three-core cable butt joint, all be that three heart yearns of the free-hand cable that stripping is handled well of technical staff strut; Then according to dimensional requirement difference stripping heart yearn; Refill transition joint, hold with water blocking tape and armoring tape, thus the butt joint of realization three-core cable.And in the prior art, this free-hand mode that struts heart yearn, the unordered mixed and disorderly distribution of heart yearn after often causing strutting; Flexural deformation and swollen outwardly radially opening, and the unordered mixed and disorderly distribution of heart yearn causes the inequalities that distribute such as the electric field in the transition joint easily, and the flexural deformation of heart yearn and swollen outwardly radially opening; The bending that not only causes inner each layer of heart yearn easily with move relatively; Thereby cause the gap to occur between the cable core interior layer and cause the joint internal discharge easily, simultaneously, because heart yearn is harder; After installing transition joint on the heart yearn of butt joint; Heart yearn still has the outwards swollen trend of opening, so cause stress cone and internal shield generation serious deformation in the transition joint to be damaged easily, has certain potential safety hazard.A kind of 15KV and following three core oils that propose like Chinese patent document CN2137829Y soak the transition joint of paper insulation power cable resin-cast; This three core oil soaks the transition joint of paper insulation power cable resin-cast and is made up of housing and internal structure; Cloth intercoil connection in the inner walls plating screen, screen.Open the sprue gate on the housing, exhaust outlet, air slot.Card insulation support plate in the housing, with three cores support separate guarantee alternate with.Respectively wrap viscosity oil resistant clay on insulation and the tape insulation mutually, skin is tied tight with the alkali glass silk ribbon.Cast oil resistant insulating synthetic resin pouring agent in the housing.
Summary of the invention
For this reason; The utility model technical problem to be solved be three-core cable transition joint in the prior art heart yearn separately be to cause the unordered mixed and disorderly distribution of heart yearn by free-hand completion; Flexural deformation and swollen outwardly radially opening; Thereby cause the stress cone in the transition joint to damage with internal shield generation gross distortion, and the bending of inner each layer of cable and moving relatively, thereby the problem that the gap occurs between the cable interior layer and cause the joint internal discharge easily caused; Provide a kind of and can divide equally heart yearn, and in dividing equally the process of heart yearn, can prevent the swollen middle pressure multicore cable transition joint of opening of heart yearn distortion.
For solving the problems of the technologies described above, press the multicore cable transition joint among the utility model a kind of, comprise jointing, said jointing is used to realize the butt joint one by one of each structure sheaf of the corresponding heart yearn of two multicore cables; Housing, said housing is arranged on outermost one deck, and the two ends of said housing are suitable for respectively being connected with the body seal of two said multicore cables; Also comprise insulation; Be arranged on the heart yearn crotch and the awl of the balance wedge between the said jointing of said multicore cable; Said balance wedge awl comprises conical head and cylindrical correction afterbody; And axially be provided with equably on the side of said balance wedge awl and be fit to that said heart yearn inserts, what number was consistent with said heart yearn number plays the passage of corrective action to said heart yearn, and said passage comprises on the side that extends to said conical head; Be fit to said heart yearn smooth out with the fingers into opening skewed slot part; The heart yearn cluster centre of said multicore cable be fit to is inserted at the tip of said conical head, so that the said heart yearn in the said heart yearn group is along said access ramp part evenly separately, and the heart yearn that separates through said channel correcting.
Said passage is the opening tank circuit.
Also form several material-saving holes on the said balance wedge awl.
Also comprise insulation, be arranged between said balance wedge awl and the said jointing, as far as possible near the columniform balance fixed block of said jointing, form on the said balance fixed block consistent with said passage distribution, the correction hole that supplies said heart yearn to pass.
Also be provided with province's hopper on the said balance fixed block.
Comprise that also said insulating barrier centers on from the core wire segment setting between said heart yearn crotch to the said jointing to said balance fixed block and the spacing insulating barrier of said balance wedge awl.
Said jointing comprises: tube connector; The number of said tube connector is consistent with the number of the said heart yearn of said multicore cable; And be arranged on the conductor place of the said heart yearn of two said multicore cables, realize the butt joint of said conductor of the said heart yearn of two said multicore cables; The inner shield pipe, said inner shield pipe is arranged on said tube connector inwall; The straight coupling main body; Said straight coupling main body comprises tubular shell; And the stress cone that is arranged on place, two ends in the said tubular shell; Said straight coupling main body is set on the said tube connector, and the said stress cone at two ends is put up respectively on the semi-conductive layer of the said heart yearn of two said butt joint multicore cables, and the sealing of place, said straight coupling main body two ends; Shielding copper mesh cover, said shielding copper mesh is set on the said straight coupling main body, and the two ends of said shielding copper mesh cover are connected with the copper shield of two said multicore cables respectively.
The technique scheme of the utility model is compared prior art and is had the following advantages:
1, in the utility model, the setting of balance wedge awl can guarantee the even bifurcated of heart yearn, has prevented overflexing distortion when the heart yearn bifurcated simultaneously, has realized to a certain extent the heart yearn behind the bifurcated is carried out collimation.
2, in the utility model, the setting of balance fixed block can be bored by the complex equilibrium wedge, the heart yearn collimation that will from balance wedge awl, pass; And maintain the even distribution of each heart yearn and the state that extends in parallel; Thereby make each heart yearn all at equilibrium, guaranteed that the spaced apart size between each heart yearn is consistent, electric field is consistent; The more important thing is; Reduce the generation in gap between the caused heart yearn interior layer of distortion of heart yearn largely, and stress cone, inner shield pipe generation gross distortion, and pressed the performance of multicore cable transition joint in the influence.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the cutaway view of the middle pressure multicore cable transition joint of the utility model;
Fig. 2 is the partial enlarged drawing at the A place of Fig. 1;
Fig. 3 is the stereogram of the balance wedge awl of the utility model;
Fig. 4 is the front view of the balance fixed block of the utility model.
Reference numeral is expressed as among the figure: 1-multicore cable, 2-heart yearn, 3-shielding copper mesh cover, 4-shell, 5-balance wedge awl, 6-passage, 7-opening skewed slot part, 8-material-saving hole, 9-balance fixed block, 10-jointing, 11-correction hole, 12-economize hopper, 13-insulating barrier, 14-waterproof belt, 15-armouring belt, 16-cylindrical shape containment vessel, 17-taper containment vessel, 18-connecting cylinder, 19-tube connector, 20-inner shield pipe, 21-straight coupling main body.
Embodiment
Shown in Fig. 1-4, press the multicore cable transition joint in a kind of, comprise the jointing 10 of butt joint one by one of each structure sheaf of the corresponding heart yearn 2 that is used to realize two multicore cables 1; Be arranged on the housing of outermost one deck, the two ends of said housing are suitable for respectively being tightly connected with the shell 4 of two said multicore cables 1; Also comprise insulation; Be arranged on the heart yearn crotch and the awl of the balance wedge between the said jointing 10 5 of said multicore cable 1; Said balance wedge awl 5 comprises conical head and cylindrical correction afterbody; And axially be provided with equably on the side of said balance wedge awl 5 and be fit to that said heart yearn 2 inserts, the passage 6 that number is consistent with said heart yearn 2 numbers to 2 corrective actions of said heart yearn, said passage 6 comprises on the side that extends to said conical head; Be fit to said heart yearn 2 smooth out with the fingers into opening skewed slot part 7; The tip of said conical head is fit to insert the heart yearn cluster centre of said multicore cable 1, so that the said heart yearn 2 in the said heart yearn group along said access ramp part evenly separately, and proofreaies and correct heart yearn 2 separately through said channel part.The setting of said balance wedge awl 5 can guarantee said heart yearn 2 even bifurcateds, has prevented overflexing distortion when heart yearn 2 bifurcateds simultaneously, realizes to a certain extent the heart yearn behind the bifurcated 2 is carried out collimation.In the present embodiment, for the ease of installing, said passage 6 is the opening tank circuit.
Like Fig. 1 and shown in Figure 4; In addition; Also comprise insulation, be arranged between said balance wedge awl 5 and the said jointing 10, try one's best near the columniform balance fixed block 9 of said jointing 10; Form on the said balance fixed block 9 with said passage 6 distribute consistent, the correction hole 11 that supplies said heart yearn 2 to pass.The setting of said balance fixed block 9 can cooperate said balance wedge awl 5; Said heart yearn 2 collimations that will from said balance wedge awl 5, pass, and maintain the even distribution of each heart yearn 2 and the state that extends in parallel, thus make each heart yearn 2 all at equilibrium; Guaranteed that the spaced apart size between each heart yearn 2 is consistent; Electric field is consistent, the more important thing is, has reduced the generation in gap between caused heart yearn 2 interior layers of distortion of heart yearn 2 largely; And gross distortions take place in stress cone, inner shield pipe 20, and press the performance of multicore cable transition joint in the influence.
Comprise also said balance fixed block 9 and said balance wedge bored 5 spacing insulating barriers 13 that said insulating barrier 13 is around from the core wire segment setting between said heart yearn crotch to the said jointing 10.
For economical with materials, reduce cost, also form several material-saving holes 8 on the said balance wedge awl 5.Also be provided with province's hopper 12 on the said balance fixed block 9.
As depicted in figs. 1 and 2; Said housing is by the containment vessel that is arranged on innermost layer; Be arranged on the waterproof belt 14 of the second layer; And being arranged on outermost armouring belt 15 formations, wherein said containment vessel is by the cylindrical shape containment vessel 16 in the middle of being arranged on, and taper containment vessel 17 formations that are arranged on said cylindrical shape containment vessel 16 two ends.Said containment vessel is processed by high-intensity engineering material; Has good mechanical strength and toughness; Be not afraid of and push and collision, can also prevent that the water that penetrates said armouring belt 15 and said waterproof belt from getting into transition joint inside, reaches further good waterproof effect simultaneously.Said containment vessel and said balance fixed block 9 interference fits; Not only can make the two ends of 9 pairs of said containment vessels of said balance fixed block have certain supporting role; Thereby strengthen the compressive resistance of said containment vessel, but also can guarantee the equiblibrium mass distribution of three cores in said containment vessel.In the present embodiment, the said cylindrical shape containment vessel 16 and said balance fixed block 9 interference fits of said containment vessel.
In the present embodiment; Said taper containment vessel 17 is by the conical transition part of centre; Be arranged on the two ends of said conical transition part; The great circle tubular butt end portion of docking with said cylindrical shape containment vessel 16 respectively, and the roundlet tubular that is connected with the said shell 4 of said multicore cable 1 connects the end formation.Said cylindrical shape containment vessel 16 and said taper containment vessel 17 minutes are body formed, and through 18 butt joints of a connecting cylinder, and joint can bond with fluid sealant.
Said jointing 10 comprises: tube connector 19; The number of said tube connector 19 is consistent with the number of the said heart yearn 2 of said multicore cable 1; And be arranged on the conductor place of the said heart yearn 2 of two said multicore cables 1, realize the butt joint of said conductor of the said heart yearn 2 of two said multicore cables 1; Inner shield pipe 20, said inner shield pipe 20 are arranged on said tube connector 19 inwalls; Straight coupling main body 21; Said straight coupling main body 21 comprises tubular shell; And the stress cone that is arranged on place, two ends in the said tubular shell; Said straight coupling main body 21 is set on the said tube connector 19, and the said stress cone at two ends is put up respectively on the semi-conductive layer of the said heart yearn 2 of two said butt joint multicore cables 1, and the sealing of place, said straight coupling main body 21 two ends; Shielding copper mesh cover 3, said shielding copper mesh cover 3 is arranged on the said straight coupling main body 21, and the two ends of said shielding copper mesh cover 3 are connected with the copper shield of two said multicore cables 1 respectively.
In the utility model, multicore cable 1 comprises shell 4 and the heart yearn group that is arranged on shell 4 inside, and heart yearn group is made up of the heart yearn more than two strands 2.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model creation.
Claims (7)
1. press the multicore cable transition joint in one kind, comprise
Jointing (10), said jointing (10) are used to realize the butt joint one by one of each structure sheaf of the corresponding heart yearn (2) of two multicore cables (1);
Housing, said housing is arranged on outermost one deck, and the two ends of said housing are suitable for respectively being tightly connected with the shell (4) of two said multicore cables (1);
It is characterized in that:
Also comprise insulation; Be arranged on the heart yearn crotch and the awl of the balance wedge between the said jointing (10) (5) of said multicore cable (1); Said balance wedge awl (5) comprises conical head and cylindrical correction afterbody; And axially be provided with equably on the side of said balance wedge awl (5) and be fit to that said heart yearn (2) inserts; The passage (6) that number is consistent with said heart yearn (2) number to said heart yearn (a 2) corrective action; Said passage (6) comprises on the side that extends to said conical head, be fit to said heart yearn (2) smooth out with the fingers into opening skewed slot part (7), the tip of said conical head is fit to insert the heart yearn cluster centre of said multicore cable (1); So that the said heart yearn (2) in the said heart yearn group along said access ramp part evenly separately, and proofread and correct heart yearn (2) separately through said channel part.
2. press the multicore cable transition joint in according to claim 1, it is characterized in that: said passage (6) is the opening tank circuit.
3. press the multicore cable transition joint in according to claim 2, it is characterized in that: also form several material-saving holes (8) on the said balance wedge awl (5).
4. according to each described middle multicore cable transition joint of pressing among the claim 1-3; It is characterized in that: also comprise insulation; Be arranged between said balance wedge awl (5) and the said jointing (10); As far as possible near the columniform balance fixed block (9) of said jointing (10), form on the said balance fixed block (9) with said passage (6) distribute consistent, the correction hole (11) that supplies said heart yearn (2) to pass.
5. press the multicore cable transition joint in according to claim 4, it is characterized in that: also be provided with province's hopper (12) on the said balance fixed block (9).
6. press the multicore cable transition joint in according to claim 5; It is characterized in that: comprise that also said insulating barrier (13) centers on from the core wire segment setting between said heart yearn crotch to the said jointing (10) to said balance fixed block (9) and said balance wedge awl (5) spacing insulating barrier (13).
7. press the multicore cable transition joint in according to claim 6, it is characterized in that: said jointing (10) comprising:
Tube connector (19); The number of said tube connector (19) is consistent with the number of the said heart yearn (2) of said multicore cable (1); And be arranged on the conductor place of the said heart yearn (2) of two said multicore cables (1), realize the butt joint of said conductor of the said heart yearn (2) of two said multicore cables (1);
Inner shield pipe (20), said inner shield pipe (20) are arranged on said tube connector (19) inwall;
Straight coupling main body (21); Said straight coupling main body (21) comprises tubular shell; And the stress cone that is arranged on place, two ends in the said tubular shell; Said straight coupling main body (21) is set on the said tube connector (19), and the said stress cone at two ends is put up respectively on the semi-conductive layer of the said heart yearn (2) of two said butt joint multicore cables (1), and the sealing of place, said straight coupling main body (21) two ends;
Shielding copper mesh cover (3), said shielding copper mesh cover (3) is arranged on the said straight coupling main body (21), and the two ends of said shielding copper mesh cover (3) are connected with the copper shield of two said multicore cables (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202496215U CN202159780U (en) | 2011-07-15 | 2011-07-15 | Intermediate connecting joint for medium-pressure multi-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202496215U CN202159780U (en) | 2011-07-15 | 2011-07-15 | Intermediate connecting joint for medium-pressure multi-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159780U true CN202159780U (en) | 2012-03-07 |
Family
ID=45767405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202496215U Withdrawn - After Issue CN202159780U (en) | 2011-07-15 | 2011-07-15 | Intermediate connecting joint for medium-pressure multi-core cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202159780U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290645A (en) * | 2011-07-15 | 2011-12-21 | 广东长牛电气有限公司 | Multi-core cable joint and mounting method thereof |
| CN108011199A (en) * | 2017-11-06 | 2018-05-08 | 中广核核电运营有限公司 | Core temperature measuring system, thermocouple cored wire connection component and preparation method thereof |
| CN109494498A (en) * | 2018-11-26 | 2019-03-19 | 金杯电工股份有限公司 | A kind of cable connecting terminal and a kind of cable |
| CN114050517A (en) * | 2021-09-24 | 2022-02-15 | 宁波东方电缆股份有限公司 | Manufacturing process of middle wrapping fusion type soft joint of three-core cable |
-
2011
- 2011-07-15 CN CN2011202496215U patent/CN202159780U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290645A (en) * | 2011-07-15 | 2011-12-21 | 广东长牛电气有限公司 | Multi-core cable joint and mounting method thereof |
| CN108011199A (en) * | 2017-11-06 | 2018-05-08 | 中广核核电运营有限公司 | Core temperature measuring system, thermocouple cored wire connection component and preparation method thereof |
| CN109494498A (en) * | 2018-11-26 | 2019-03-19 | 金杯电工股份有限公司 | A kind of cable connecting terminal and a kind of cable |
| CN114050517A (en) * | 2021-09-24 | 2022-02-15 | 宁波东方电缆股份有限公司 | Manufacturing process of middle wrapping fusion type soft joint of three-core cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG CHANGNIU ELECTRIC CO., LTD. Free format text: FORMER NAME: GUANGDONG LONG BULL ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Guangdong province Foshan Junye Nanhai District of Shishan science and Technology Industrial Park C District No. 12 North Road Patentee after: Guangdong Changniu Electrical Co., Ltd. Address before: 528000 Guangdong province Foshan Junye Nanhai District of Shishan science and Technology Industrial Park C District No. 12 North Road Patentee before: Guangdong Changniu Electrical Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120307 Effective date of abandoning: 20130417 |
|
| RGAV | Abandon patent right to avoid regrant |