CN117595189B - High-voltage cable connecting device convenient to overhaul - Google Patents
High-voltage cable connecting device convenient to overhaul Download PDFInfo
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- CN117595189B CN117595189B CN202410074330.9A CN202410074330A CN117595189B CN 117595189 B CN117595189 B CN 117595189B CN 202410074330 A CN202410074330 A CN 202410074330A CN 117595189 B CN117595189 B CN 117595189B
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- 238000007789 sealing Methods 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/24—Cable junctions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
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Abstract
The invention discloses a high-voltage cable connecting device convenient to overhaul, and mainly relates to the technical field of cable butting devices. Including cable group, cable group includes two prefabricated cables and intermediate cable, the end of two prefabricated cables and the both ends of intermediate cable all are equipped with shrinkage cable terminal, still establish the sleeve in the cable group outside including the cover, along vertical sliding connection having the lifter block in the cable pit, be equipped with a plurality of clamp splice on the lifter block, the tip of clamp splice is equipped with the U type groove with sleeve joint complex, the sleeve is including the cover establish at the terminal first pipeline of prefabricated cable and the second pipeline in the intermediate cable outside of cover, the tip of two first pipelines all is equipped with the public head that is connected with shrinkage cable terminal, the both ends of second pipeline all are equipped with the female head that is connected with shrinkage cable terminal, public head and female head grafting cooperation. The invention has the beneficial effects that: the problem that the high-voltage cable connecting device is inconvenient to detach and maintain is solved, and the cable maintenance efficiency is improved.
Description
Technical Field
The invention relates to the technical field of cable butt joint devices, in particular to a high-voltage cable connecting device convenient to overhaul.
Background
When the traditional high-voltage cable is connected, different cable trenches are required to be dug according to the topography so as to arrange buried cables, and when the length of the laid cables is longer, the cables are required to be in butt joint installation. At present, the butt joint of two cable ends adopts the clamping butt joint generally, namely the copper pipe is sleeved on two cable cores, the copper pipe is tightly pressed by using a hydraulic clamp, and then the outer side is coated with a protective waterproof structure. In addition, cable wells are typically provided at the junctions of the plurality of high voltage cables to facilitate subsequent maintenance and repair of the cables.
However, after the connection is adopted, when one cable is damaged or a circuit is changed and a new cable needs to be connected, the connection part of the original cable needs to be cut off and the new cable needs to be connected again, so that the cable maintenance efficiency is reduced to a certain extent; meanwhile, the cables in the cable well are more, the space is narrower, and the cable is inconvenient to overhaul.
Disclosure of Invention
The invention aims to provide a high-voltage cable connecting device convenient to overhaul, solve the problem that the high-voltage cable connecting device is inconvenient to disassemble and repair, and improve the efficiency of overhaul of cables.
The invention aims to achieve the aim, and the invention is realized by the following technical scheme:
the utility model provides a high tension cable connecting device convenient to overhaul, includes the cable group of a plurality of setting in the cable pit, the cable group includes two prefabricated cables and connects the intermediate cable of two prefabricated cables, two the terminal of prefabricated cable and the both ends of intermediate cable all are equipped with ABC three-phase, ABC three-phase tip is equipped with shrinkage cable terminal, still establishes the sleeve in the cable group outside including the cover, there is the lifter along vertical sliding connection in the cable pit, be equipped with a plurality of clamp splice on the lifter, the tip of clamp splice is equipped with the U type groove with sleeve joint complex, the sleeve is established at the terminal first pipeline of prefabricated cable and the second pipeline of sleeve outside intermediate cable including the cover, two the tip of first pipeline all is equipped with the public head that is connected with shrinkage cable terminal, the both ends of second pipeline all are equipped with the female head that is connected with shrinkage cable terminal, public head and female head are pegged graft the cooperation.
Further, the end part of the cold-shrink cable terminal is provided with a binding post, through holes for the binding post to pass through are respectively arranged on the male head and the female head, a first conductive block and a second conductive block which are respectively contacted with the binding post in the male head and the female head, and the end part of the first conductive block extends to the outer side and is contacted with the second conductive block.
Further, the male head and the female head are respectively provided with a thread groove communicated with the through hole, the thread grooves are internally and in threaded connection with jackscrews, and the end parts of the jackscrews are provided with pressing plates contacted with the wiring terminals.
Further, the wiring terminal is provided with a round hole, and the pressing plate is provided with a bump which is in plug-in fit with the round hole.
Further, be equipped with the spout that is linked together with the through-hole on the female head, be equipped with the slider that contacts with the second conductive block in the spout, be equipped with first spring between slider and the female head, be equipped with on the male head with female head sliding connection's fixed block, the tip of fixed block is equipped with the first inclined plane that contacts with the slider, sliding connection has a plurality of ball on the fixed block, be equipped with the second spring between ball and the fixed block, be equipped with on the female head with ball grafting complex slot.
Further, be equipped with a plurality of supporting shoe between first pipeline and second pipeline and the cable group respectively, first pipeline and second pipeline all split are left half piece and right half piece, the both ends of left half piece all are equipped with the locating piece, the both ends of right half piece are equipped with the constant head tank with locating piece grafting complex, be equipped with the sealing strip between left half piece and the right half piece.
Further, the sleeve is provided with an inflation inlet and a temperature and humidity sensor, the inflation inlet is communicated with external insulating gas, and the bottom of the cable well is provided with an inclined surface and a water outlet matched with the inclined surface.
Further, the cable sealing device further comprises a first L-shaped block in threaded connection with the first pipeline and a conical sealing pad sleeved on the outer side of the prefabricated cable, a second inclined surface in contact with the conical sealing pad is arranged on the first L-shaped block, and a baffle in contact with the conical sealing pad is arranged at the end part of the first pipeline.
Further, the tip of first pipeline is equipped with the bush, the both ends of second pipeline are equipped with T type piece respectively, be equipped with on the bush with T type piece grafting complex recess, be equipped with the sealing washer between T type piece and the bush, the outside of T type piece rotates to be connected with bush threaded connection's second L type piece, the tip of second L type piece contacts with T type piece.
Further, the cable shaft is internally symmetrically provided with a supporting seat, the supporting seat is provided with a vertical groove, the lifting block is provided with a guide rod which is in sliding connection with the vertical groove, the cable shaft is internally provided with a cylinder, the movable end of the cylinder is provided with a push block, a connecting rod is arranged between the push block and the guide rod, and two ends of the connecting rod are respectively connected with the push block and the guide rod in a rotating way.
Compared with the prior art, the invention has the beneficial effects that:
1. the cable groups are arranged in the cable well in parallel, and corresponding marks are attached to the cable groups, so that the corresponding cable groups can be found in time when the cable is convenient to maintain; meanwhile, the cable set comprises two prefabricated cables which are pre-buried in the cable trench, the end parts of the two prefabricated cables extend into the cable well, an intermediate cable is arranged between the two sections of the prefabricated cables, and the prefabricated cables are communicated with the intermediate cable through a female head and a male head, so that when overhauling, the male head or the female head arranged on a new cable is connected with the corresponding female head or the male head by releasing the old connection of the male head and the female head at the corresponding position, the replacement of the cable can be realized, the joint of the original cable is not required to be cut off, the new cable is connected again, and sealing treatment is carried out, so that the efficiency of maintaining the cable is improved;
2. the ends of the two prefabricated cables and the two ends of the intermediate cable are stripped, ABC three phases are leaked, cold-shrinkage cable terminals are respectively arranged on the ABC three phases, so that the prefabricated cables and the intermediate cable are conveniently connected with a male head and a female head, meanwhile, the exposed wires are insulated, the electric field is prevented from discharging through air or other media, cable faults or safety accidents are caused, and the service life of the cables is prolonged; in addition, the insulation treatment can also prevent the cable from interfering the outside, so that the transmission efficiency and reliability of the cable are improved;
3. finally, the second pipeline and the two first pipelines are respectively placed in a U-shaped groove formed in the end part of the clamping block, the pushing block is driven to transversely slide in the cable well through the air cylinder, and as the two ends of the connecting rod are respectively connected with the pushing block and the guide rod in a rotating mode, the guide rod is driven to vertically slide in the vertical groove, the lifting block is enabled to vertically move upwards, the cable group is driven to extend out of the cable well, and therefore cables are not required to be overhauled in the narrow cable well, and the cable overhauling efficiency of workers is improved;
4. through the cooperation among the prefabricated cable, the wiring terminal, the female head, the through hole, the first conductive block, the jackscrew, the thread groove and the pressing plate, friction force is generated between the wiring terminal and the pressing plate as well as between the wiring terminal and the first conductive block, and connection between the prefabricated cable and the female head as well as between the intermediate cable and the female head is realized; in addition, the side surface of the lug contacts with the side surface of the round hole, so that the generated resistance can prevent the wiring terminal from falling off from the male head or the female head, and the overall stability of the cable set is improved;
5. through the cooperation among the male head, the second conductive block, the female head, the through hole, the first conductive block, the fixed block, the first inclined plane, the sliding block and the sliding groove, the friction force between the first conductive block and the second conductive block is increased, and the electrical connection between the male head and the female head is realized; meanwhile, the male and female heads are fixed through the cooperation among the fixed block, the ball, the second spring, the female head and the groove;
6. the cable group is fixed in the sleeve through the cooperation among the first pipeline, the second pipeline, the cable group, the supporting block, the left half block, the positioning block, the right half block and the positioning groove; in addition, the sealing of the side surface of the sleeve is realized through the sealing strip arranged between the left half block and the right half block;
7. the sealing of the inlet of the first pipeline is realized through the cooperation among the first pipeline, the first L-shaped block, the conical sealing gasket, the stop block and the cable group, and meanwhile, the inlet ends of the left half block and the right half block are closed; the first pipeline and the second pipeline are connected and sealed through the cooperation among the first pipeline, the second L-shaped block, the bushing, the second pipeline, the T-shaped block, the groove and the sealing ring, so that the leakage of the internal insulating gas is avoided, the cable is ensured to be in an insulating state for a long time, and the supplementing times of the insulating gas are reduced; meanwhile, the phenomenon that the service life of the cable is influenced by short circuit of the cable due to the fact that water vapor enters the sleeve is avoided;
8. the sleeve is provided with the inflation inlet and the temperature and humidity sensor for detecting the temperature and the humidity inside the sleeve, so that the temperature and the humidity inside the sleeve can be conveniently controlled, and the service life of the cable is prevented from being influenced by overhigh temperature and humidity; meanwhile, the air charging port is communicated with external insulating gas SF6, so that the insulating gas SF6 is charged into the sleeve, the inside of the sleeve is in an insulating state, the electric field is prevented from being discharged through air or other media, cable faults or safety accidents are caused, and the service life of the cable is prolonged; in addition, the insulation treatment can also prevent the cable from interfering the outside, and improve the transmission efficiency and reliability of the cable.
Drawings
Fig. 1 is a schematic view of the structure of the inside of a cable well according to the present invention.
Fig. 2 is an enlarged view of a portion of the invention at a of fig. 1.
Fig. 3 is an enlarged view of a portion of the invention at B in fig. 1.
Fig. 4 is an enlarged view of a portion of the invention at the C-position of fig. 3.
Fig. 5 is a schematic view of the structure of the support block of the present invention.
Fig. 6 is an enlarged view of a portion of the invention at the D-site of fig. 5.
Fig. 7 is a schematic view of the structure of the second pipe according to the present invention.
Fig. 8 is a schematic structural view of the push block of the present invention.
The reference numbers shown in the drawings:
1. a cable well; 2. prefabricating a cable; 3. an intermediate cable; 4. ABC three phases; 5. cold-shrink cable termination; 6. a sleeve; 7. a lifting block; 8. clamping blocks; 9. a U-shaped groove; 10. a first pipe; 11. a second pipe; 12. a male; 13. a female head; 14. a connection terminal; 15. a through hole; 16. a first conductive block; 17. a second conductive block; 18. a thread groove; 19. a jackscrew; 20. a pressing plate; 21. a round hole; 22. a bump; 23. a chute; 24. a slide block; 25. a first spring; 26. a fixed block; 27. a first inclined surface; 28. a ball; 29. a second spring; 30. a groove; 31. a support block; 32. a left half block; 33. a right half block; 34. a positioning block; 35. a positioning groove; 36. a sealing strip; 37. an inflation inlet; 38. a temperature and humidity sensor; 39. an inclined surface; 40. a water outlet; 41. a first L-shaped block; 42. a conical gasket; 43. a baffle; 44. a bushing; 45. a T-shaped block; 46. a groove; 47. a seal ring; 48. a second L-shaped block; 49. a support base; 50. a vertical groove; 51. a guide rod; 52. a cylinder; 53. a pushing block; 54. and (5) connecting a rod.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
The invention provides a high-voltage cable connecting device convenient to overhaul, which comprises a plurality of cable groups arranged in a cable well 1, as shown in figures 1, 7 and 8, wherein the specific cable groups can be arranged in parallel and are attached with corresponding marks, so that the corresponding cable groups can be found in time when maintenance is convenient; the cable set comprises two prefabricated cables 2 and an intermediate cable 3 for connecting the two prefabricated cables 2, wherein the prefabricated cables 2 are embedded in a cable duct, the end parts of the prefabricated cables extend into a cable well 1, and the prefabricated cables are communicated through the intermediate cable 3; ABC three phases 4 are arranged at the tail ends of the two prefabricated cables 2 and at the two ends of the middle cable 3, cold-shrink cable terminal ends 5 are arranged at the tail ends of the ABC three phases 4, so that the prefabricated cables 2 and the middle cable 3 are conveniently connected with a male head 12 and a female head 13, meanwhile, bare wires are insulated, an electric field is prevented from being discharged through air or other media, cable faults or safety accidents are caused, the service life of the cables is prolonged, and specifically, the cold-shrink cable terminal ends 5 of a WLS-10 model can be adopted; in addition, the insulation treatment can also prevent the cable from interfering the outside, so that the transmission efficiency and reliability of the cable are improved; the cable well is characterized by further comprising a sleeve 6 sleeved on the outer side of the cable set, wherein the sleeve is used for fixing the cable set and preventing water vapor in the cable well 1 from contacting with the cable to influence the service life of the cable; the cable shaft 1 is vertically and slidably connected with the lifting block 7, and the cable set in the sleeve 6 is driven to extend out of the cable shaft 1, so that cables do not need to be overhauled in the narrow cable shaft 1, and the cable overhauling efficiency of workers is improved; the lifting block 7 is provided with a plurality of clamping blocks 8, the end part of each clamping block 8 is provided with a U-shaped groove 9 which is matched with the sleeve 6 in a clamping way and is used for fixing the sleeve 6, meanwhile, the sleeve 6 is convenient to demount from the clamping blocks 8, each sleeve 6 comprises a first pipeline 10 sleeved at the tail end of the prefabricated cable 2 and a second pipeline 11 sleeved outside the intermediate cable 3, the first pipeline 10 and the second pipeline 11 are respectively fixed, and the connection between the intermediate cable 3 and the tail end of the prefabricated cable 2 is convenient to be released subsequently; the end of two first pipeline 10 all is equipped with the public head 12 that is connected with shrinkage cable terminal 5, the both ends of second pipeline 11 all are equipped with the female head 13 that is connected with shrinkage cable terminal 5, public head 12 and female head 13 grafting cooperation, through public head 12 and female head 13 swing joint, realize cable group circuit intercommunication, be convenient for simultaneously remove intermediate cable 3 and prefabricated cable 2 terminal connection.
Preferably, as shown in fig. 3 and fig. 4, the end of the cold-shrink cable terminal 5 is provided with a connecting terminal 14, so as to be conveniently connected with the male head 12 and the female head 13, thereby improving the efficiency of connecting the cable group; the male head 12 and the female head 13 are respectively provided with a through hole 15 for a wiring terminal 14 to pass through, and a first conductive block 16 and a second conductive block 17 which are respectively contacted with the wiring terminal 14 in the male head 12 and the female head 13 are respectively communicated with the prefabricated cable 2 and the female head 13 and the intermediate cable 3 and the male head 12; the end of the first conductive block 16 extends to the outside and contacts with the second conductive block 17, so that the circuits of the male head 12 and the female head 13 are communicated, and the circuit communication of the cable set is realized.
Preferably, as shown in fig. 3 and fig. 4, the male head 12 and the female head 13 are respectively provided with a thread groove 18 communicated with the through hole 15, the thread groove 18 is internally and in threaded connection with a jackscrew 19, and the end part of the jackscrew 19 is provided with a pressing plate 20 contacted with the wiring terminal 14, so that the wiring terminal 14 is respectively fixed on the male head 12 and the female head 13, the detachable connection between the tail ends of the two prefabricated cables 2 and the female head 13 and the detachable connection between the intermediate cable 3 and the male head 12 are realized, the connection is released when the cable is damaged later, and the cable maintenance efficiency is improved.
Preferably, as shown in fig. 4, the connection terminal 14 is provided with a circular hole 21, the pressing plate 20 is provided with a protruding block 22 which is in plug-in fit with the circular hole 21, and the protruding block 22 is inserted into the circular hole 21, so that the side surface of the protruding block 22 contacts with the side surface of the circular hole 21, the generated resistance can prevent the connection terminal 14 from falling off from the male head 12 or the female head 13, and the overall stability of the cable group is improved.
Preferably, as shown in fig. 3 and fig. 4, the female head 13 is provided with a chute 23 communicated with the through hole 15, and a sliding block 24 contacted with the second conductive block 17 is arranged in the chute 23 and used for driving the second conductive block 17 to contact with the first conductive block 16 so as to realize circuit communication between the male head 12 and the female head 13; a first spring 25 is arranged between the slider 24 and the female head 13 to realize the reset of the slider 24, so that the first conductive block 16 easily slides into the through hole 15 arranged on the female head 13 to contact with the second conductive block 17 when the male head 12 and the female head 13 are connected next time, and the electrical connection of the male head 12 and the female head 13 is realized; the male head 12 is provided with a fixed block 26 which is in sliding connection with the female head 13, the end part of the fixed block 26 is provided with a first inclined surface 27 which is in contact with the sliding block 24, the sliding block 24 is driven to slide into the sliding groove 23, the electric connection between the male head 12 and the female head 13 is realized, the fixed block 26 is provided with a plurality of balls 28 in sliding connection, a second spring 29 is arranged between the balls 28 and the fixed block 26, the female head 13 is provided with a groove 30 which is in insertion fit with the balls 28, and the sliding block 24 is limited to slide continuously through the resistance generated after the balls 28 are in contact with the groove 30, so that the male head 12 and the female head 13 are fixed.
Preferably, as shown in fig. 5 and 6, a plurality of supporting blocks 31 are respectively arranged between the first pipeline 10 and the second pipeline 11 and the cable set, the cable set is fixed in the sleeve 6, and the specific supporting blocks 31 can be made of soft materials, so that the skin of the cable is prevented from being damaged; the first pipeline 10 and the second pipeline 11 are split into the left half block 32 and the right half block 33, and when the cable group is installed, the sleeve 6 can be detached, so that cables can be conveniently installed, and the cable installation efficiency is improved; positioning blocks 34 are arranged at two ends of the left half block 32, positioning grooves 35 which are in plug-in fit with the positioning blocks 34 are arranged at two ends of the right half block 33, and positioning of the sleeve 6 is achieved; a sealing strip 36 is arranged between the left half block 32 and the right half block 33 to realize the sealing of the sleeve 6.
Preferably, as shown in fig. 1, the sleeve 6 is provided with an inflation inlet and a temperature and humidity sensor 38 for detecting the temperature and humidity inside the sleeve 6, so as to control the temperature and humidity inside the sleeve 6, and avoid the influence of the overhigh temperature and humidity on the service life of the cable, and reference may be made to the TH10S series of temperature and humidity sensors 38; the inflation inlet is communicated with external insulating gas, and the specific insulating gas can be SF6, so that the inside of the sleeve 6 is in an insulating state, the electric field is prevented from being discharged through air or other media, cable faults or safety accidents are caused, and the service life of the cable is prolonged; in addition, insulating treatment can also prevent the cable from interfering the outside, improves the transmission efficiency and the reliability of cable, the bottom of cable well 1 is equipped with inclined plane 39 and the outlet 40 that uses with the cooperation of inclined plane 39, through the ponding water conservancy diversion of inclined plane 39 to the inside of cable well 1, makes ponding in time follow outlet 40 and discharges, avoids ponding long-time soaking cable to influence the life of cable.
Preferably, as shown in fig. 2, the cable assembly further comprises a first L-shaped block 41 in threaded connection with the first pipeline 10 and a conical sealing pad 42 sleeved on the outer side of the prefabricated cable 2, the first L-shaped block 41 is provided with a second inclined surface in contact with the conical sealing pad 42, the end part of the first pipeline 10 is provided with a baffle 43 in contact with the conical sealing pad 42, the cable is led to pass through the first L-shaped block 41 and the conical sealing pad 42 in advance, after the cable assembly is fixed on the sleeve 6, the first L-shaped block 41 is rotated on the outer side of the first pipeline 10, the first L-shaped block 41 is in threaded connection with the first pipeline 10, so that the first L-shaped block 41 moves on the first pipeline 10 and contacts with the conical sealing pad 42 through the first L-shaped block 41 to drive the conical sealing pad 42 to move together until the other end of the conical sealing pad 42 contacts with a stop, and then the first L-shaped block 41 is further rotated so that the inner side of the conical sealing pad 42 is in stress deformation, so that the cable assembly is tightly contacted with the cable, and sealing of the inlet of the first pipeline 10 is realized, and simultaneously, the left half block 32 and the right half block 33 are closed.
Preferably, as shown in fig. 3, the end of the first pipe 10 is provided with a bushing 44, two ends of the second pipe 11 are respectively provided with a T-shaped block 45, the bushing 44 is provided with a groove 46 in insertion fit with the T-shaped block 45, a sealing ring 47 is arranged between the T-shaped block 45 and the bushing 44, the outer side of the T-shaped block 45 is rotationally connected with a second L-shaped block 48 in threaded connection with the bushing 44, the end of the second L-shaped block 48 is contacted with the T-shaped block 45, the second L-shaped block 48 is placed on the first pipe 10 in advance, after the male head 12 and the female head 13 are connected, the second L-shaped block 48 is rotationally arranged on the first pipe 10, and as the second L-shaped block 48 is in threaded connection with the bushing 44, the second L-shaped block 48 moves on the second pipe 11 and is contacted with one end of the T-shaped block 45, the second L-shaped block 48 is driven to move with the first pipe 10 until the T-shaped block 45 enters the groove 46, and then the second L-shaped block 48 is further screwed tightly, and the sealing ring 47 arranged between the T-shaped block 45 and the first pipe 44 is compressed, thereby realizing the first pipe 10 and the sealing connection with the second pipe 11.
Preferably, as shown in fig. 7 and 8, a supporting seat 49 is symmetrically arranged in the cable well 1 and is used for supporting the lifting block 7, a vertical groove 50 is arranged on the supporting seat 49, and a guide rod 51 which is slidably connected with the vertical groove 50 is arranged on the lifting block 7, so that the sleeve 6 slides vertically in the cable well 1, the cable group can extend out of the cable well 1, and the cable well 1 is convenient for a worker to overhaul; the cable shaft 1 is internally provided with an air cylinder 52, the movable end of the air cylinder 52 is provided with a push block 53, the push block 53 is driven by the air cylinder 52 to transversely slide in the cable shaft 1, a connecting rod 54 is arranged between the push block 53 and the guide rod 51, and two ends of the connecting rod 54 are respectively and rotatably connected with the push block 53 and the guide rod 51, so that the push block 53 drives the guide rod 51 to vertically slide, and the lifting block 7 is driven to vertically move.
Example 1
The invention provides a high-voltage cable connecting device convenient to overhaul, which comprises a plurality of cable groups which are arranged in a cable well 1 in parallel as shown in figures 1, 7 and 8, and corresponding marks are attached on the cable groups, so that the corresponding cable groups can be found in time when maintenance is convenient; the cable group comprises two prefabricated cables 2 which are pre-buried in a cable trench, the end parts of the two prefabricated cables extend into a cable well 1, an intermediate cable 3 is arranged between the two sections of the prefabricated cables 2, the prefabricated cables 2 and the intermediate cable 3 are communicated through a female head 13 and a male head 12, specifically, the end parts of the two prefabricated cables 2 and the two ends of the intermediate cable 3 are firstly stripped, ABC three-phase 4 is leaked, cold-shrink cable terminal heads 5 are arranged on the ABC three-phase 4, the prefabricated cables 2 and the intermediate cable 3 are conveniently connected with the male head 12 and the female head 13, meanwhile, bare wires are insulated, electric fields are prevented from being discharged through air or other media, cable faults or safety accidents are caused, and the service life of the cables is prolonged; in addition, the insulation treatment can also prevent the cable from interfering the outside, so that the transmission efficiency and reliability of the cable are improved; then, two first pipelines 10 are respectively sleeved outside the prefabricated cable 2, cold-shrink cable terminals 5 arranged at the end parts of the prefabricated cable 2 are connected with a female head 13, a second pipeline 11 is sleeved outside the intermediate cable 3, and cold-shrink cable terminals 5 arranged at the two ends of the intermediate cable 3 are connected with a male head 12, so that a cable group pipeline is arranged in a sleeve 6, water vapor in a cable well 1 is prevented from contacting with a cable, and the service life of the cable is prevented from being influenced; in addition, through the movable connection of the male head 12 and the female head 13, when in maintenance, the male head 12 or the female head 13 arranged on a new cable is connected with the corresponding female head 13 or the male head 12 by releasing the old connection of the male head 12 and the female head 13 at the corresponding position, so that the replacement of the cable can be realized, the joint of the original cable is not required to be cut off, the new cable is connected again, and sealing treatment is carried out, thereby improving the efficiency of cable maintenance;
finally, the second pipeline 11 and the two first pipelines 10 are respectively placed in the U-shaped grooves 9 formed in the end parts of the clamping blocks 8, the lifting blocks 7 are lifted in the cable shaft 1 to drive the cable group in the sleeve 6 to slide upwards, the cable shaft 1 is detected out, the cable damage part is convenient to maintain, and the overhaul efficiency of the cable is improved.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 2, 3 and 4, when the cable set is installed, the prefabricated cable 2 passes through the first L-shaped block 41 and the conical sealing gasket 42 in sequence in advance, meanwhile, the intermediate cable 3 passes through the two second L-shaped blocks 48, and the connecting terminal 14 is arranged at the end part of the cold-shrink cable terminal 5, so that the connection with the male head 12 and the female head 13 is facilitated, and the efficiency of connecting the cable set is improved; the connecting terminal 14 arranged on the prefabricated cable 2 stretches into the through hole 15 arranged on the female head 13, the connecting terminal 14 is in contact with the first conductive block 16, the jackscrew 19 in threaded connection with the female head 13 is screwed, the jackscrew 19 moves in the threaded groove 18 and drives the pressing plate 20 arranged at the end part to be in contact with the connecting terminal 14, and friction force is generated between the connecting terminal 14 and the pressing plate 20 and between the connecting terminal 14 and the first conductive block 16, so that the connection between the prefabricated cable 2 and the female head 13 is realized; in addition, the lug 22 arranged at the bottom of the pressing plate 20 is inserted into the round hole 21 arranged on the wiring terminal 14, so that the side surface of the lug 22 is contacted with the side surface of the round hole 21, the generated resistance can prevent the wiring terminal 14 from falling off from the male head 12 or the female head 13, and the overall stability of the cable set is improved; similarly, the connection between the two ends of the intermediate cable 3 and the male 12 is realized;
subsequently, the second conductive block 17 arranged on the male head 12 corresponds to the through hole 15 arranged on the female head 13, ABC three phases 4 are distinguished at the same time, then the second conductive block 17 is inserted into the through hole 15 arranged on the female head 13, so that the side face of the second conductive block 17 is contacted with the first conductive block 16, meanwhile, the fixed block 26 arranged on the male head 12 slides outside the female head 13, the first inclined face 27 arranged on the fixed block 26 is contacted with the sliding block 24, so that the sliding block 24 is driven to slide into the sliding groove 23, the end part of the sliding block is contacted with the first conductive block 16, the first conductive block 16 is further bent and deformed, the first conductive block 16 and the second conductive block 17 are further clamped, friction force between the first conductive block 16 and the second conductive block 17 is increased, the electric connection between the male head 12 and the female head 13 is realized, meanwhile, the operation steps of fixing the male head 12 and the female head 13 are simplified, and the efficiency of connecting cable groups is improved; in addition, the ball 28 arranged on the fixed block 26 is contacted with the female head 13, the generated component force enables the ball 28 to move towards two sides on the power supply block and compresses the second spring 29 until the ball 28 moves to the groove 30, and under the action of the resilience force of the second spring 29, the ball 28 is driven to move inwards on the fixed block 26 and slide into the groove 30 arranged on the female head 13, and the sliding block 24 is limited to slide continuously through the resistance generated after the ball 28 contacts with the groove 30, so that the male head 12 and the female head 13 are fixed;
then the first pipeline 10 and the second pipeline 11 are opened, the cable set is placed on the supporting block 31, and the positioning of the sleeve 6 is realized according to the plug-in matching of the positioning blocks 34 arranged at the two ends of the left half block 32 and the positioning grooves 35 arranged on the right half block 33, and the cable set is fixed in the sleeve 6; in addition, the sealing of the side surface of the sleeve 6 is realized through a sealing strip 36 arranged between the left half block 32 and the right half block 33; by rotating the first L-shaped block 41 on the outer side of the first pipeline 10, the first L-shaped block 41 is in threaded connection with the first pipeline 10, so that the first L-shaped block 41 moves on the first pipeline 10 and contacts with the conical sealing gasket 42 through the first L-shaped block 41 to drive the conical sealing gasket 42 to move together until the other end of the conical sealing gasket 42 contacts with the stop block, and then further rotating the first L-shaped block 41, so that the conical sealing gasket 42 is stressed to deform, the inner side of the conical sealing gasket 42 is tightly contacted with a cable, the sealing at the inlet of the first pipeline 10 is realized, and meanwhile, the closing of the inlet ends of the left half block 32 and the right half block 33 is realized; by rotating the second L-shaped block 48 on the first pipeline 10, as the second L-shaped block 48 is in threaded connection with the bushing 44, the second L-shaped block moves on the second pipeline 11 and contacts with one end of the T-shaped block 45 to drive the second L-shaped block to move with the first pipeline 10 until the T-shaped block 45 enters the groove 46, then further tightening the second L-shaped block 48, compressing a sealing ring 47 arranged between the T-shaped block 45 and the bushing 44, thereby realizing connection and sealing of the first pipeline 10 and the second pipeline 11, avoiding leakage of internal insulating gas, ensuring that the cable is in an insulating state for a long time, and reducing the supplementing times of the insulating gas; and meanwhile, the water vapor is prevented from entering the sleeve 6, so that the service life of the cable is influenced by the short circuit of the cable.
Example 3
On the basis of embodiment 2, as shown in fig. 1, an inflation inlet and a temperature and humidity sensor 38 are arranged on the sleeve 6 and used for detecting the temperature and humidity inside the sleeve 6, so that the temperature and humidity inside the sleeve 6 can be conveniently controlled, and the influence of the overhigh temperature and humidity on the service life of the cable is avoided; meanwhile, the air charging port is communicated with external insulating gas SF6, so that the insulating gas SF6 is charged into the sleeve, the inside of the sleeve 6 is in an insulating state, the electric field is prevented from discharging through air or other media, cable faults or safety accidents are caused, and the service life of the cable is prolonged; in addition, the insulation treatment can also prevent the cable from interfering the outside, and improve the transmission efficiency and reliability of the cable.
Example 4
On the basis of embodiment 1, as shown in fig. 7 and 8, the air cylinder 52 drives the push block 53 to slide in the cable shaft 1 in the transverse direction, and as the two ends of the connecting rod 54 are respectively connected with the push block 53 and the guide rod 51 in a rotating manner, the guide rod 51 is driven to slide in the vertical groove 50 in the vertical direction, so that the lifting block 7 moves upwards in the vertical direction, the cable group is driven to extend out of the cable shaft 1, cables do not need to be overhauled in the narrow cable shaft 1, and the cable overhauling efficiency of workers is improved.
Claims (10)
1. The utility model provides a high tension cable connecting device convenient to overhaul, includes that a plurality of sets up the cable group in cable pit (1), its characterized in that: the cable set includes two prefabricated cables (2) and connects intermediate cable (3) of two prefabricated cables (2), two the terminal of prefabricated cable (2) and the both ends of intermediate cable (3) all are equipped with ABC three-phase (4), the tip of ABC three-phase (4) is equipped with shrinkage cable terminal (5), still establishes sleeve (6) in the cable set outside including the cover, there is lifting block (7) along vertical sliding connection in cable well (1), be equipped with a plurality of clamp splice (8) on lifting block (7), the tip of clamp splice (8) be equipped with sleeve (6) joint complex U type groove (9), sleeve (6) are including the cover establish first pipeline (10) in prefabricated cable (2) terminal and the cover is established in second pipeline (11) in intermediate cable (3) outside, the tip of two first pipeline (10) all is equipped with public head (12) that are connected with shrinkage cable terminal (5), the both ends of second pipeline (11) all are equipped with public head (13) that are connected with shrinkage cable terminal (5), female joint (13).
2. The high voltage cable connection device for easy access of claim 1, wherein: the end of shrinkage cable terminal (5) is equipped with binding post (14), be equipped with through-hole (15) that supply binding post (14) passed on public head (12) and female head (13) respectively, first conducting block (16) and second conducting block (17) that contact with binding post (14) in public head (12) and female head (13) respectively, the tip of first conducting block (16) extends to the outside and contacts with second conducting block (17).
3. The high voltage cable connection device for easy access of claim 2, wherein: screw thread grooves (18) communicated with the through holes (15) are respectively arranged on the male head (12) and the female head (13), jackscrews (19) are connected in the screw thread grooves (18) in a threaded mode, and pressing plates (20) in contact with the wiring terminals (14) are arranged at the end portions of the jackscrews (19).
4. A high voltage cable connection according to claim 3 for easy access, characterized in that: the wiring terminal (14) is provided with a round hole (21), and the pressing plate (20) is provided with a bump (22) which is in plug-in fit with the round hole (21).
5. The high voltage cable connection device for easy access of claim 2, wherein: be equipped with on female head (13) spout (23) that are linked together with through-hole (15), be equipped with slider (24) that are contacted with second conducting block (17) in spout (23), be equipped with first spring (25) between slider (24) and female head (13), be equipped with on male head (12) with female head (13) sliding connection's fixed block (26), the tip of fixed block (26) be equipped with slider (24) contacted first inclined plane (27), sliding connection has a plurality of ball (28) on fixed block (26), be equipped with second spring (29) between ball (28) and fixed block (26), be equipped with on female head (13) with ball (28) grafting complex slot (30).
6. The high voltage cable connection device for easy access of claim 1, wherein: be equipped with a plurality of supporting shoe (31) between first pipeline (10) and second pipeline (11) and the cable group respectively, first pipeline (10) and second pipeline (11) all split are left half piece (32) and right half piece (33), the both ends of left half piece (32) all are equipped with locating piece (34), the both ends of right half piece (33) are equipped with and peg graft complex constant head tank (35) with locating piece (34), be equipped with sealing strip (36) between left half piece (32) and right half piece (33).
7. The high voltage cable connection device for easy access of claim 1, wherein: the cable well is characterized in that an inflation inlet (37) and a temperature and humidity sensor (38) are arranged on the sleeve (6), the inflation inlet (37) is communicated with external insulating gas, and an inclined surface (39) and a water outlet (40) matched with the inclined surface (39) are arranged at the bottom of the cable well (1).
8. The high voltage cable connection device for easy access of claim 1, wherein: the novel cable connector further comprises a first L-shaped block (41) in threaded connection with the first pipeline (10) and a conical sealing gasket (42) sleeved on the outer side of the prefabricated cable (2), wherein the first L-shaped block (41) is provided with a second inclined surface in contact with the conical sealing gasket (42), and the end part of the first pipeline (10) is provided with a baffle plate (43) in contact with the conical sealing gasket (42).
9. The high voltage cable connection device for easy access of claim 1, wherein: the end of first pipeline (10) is equipped with bush (44), the both ends of second pipeline (11) are equipped with T type piece (45) respectively, be equipped with on bush (44) with T type piece (45) grafting complex recess (46), be equipped with sealing washer (47) between T type piece (45) and bush (44), the outside rotation of T type piece (45) is connected with second L type piece (48) with bush (44) threaded connection, the tip of second L type piece (48) contacts with T type piece (45).
10. The high voltage cable connection device for easy access of claim 1, wherein: the cable well (1) is internally and symmetrically provided with a supporting seat (49), a vertical groove (50) is formed in the supporting seat (49), a guide rod (51) which is in sliding connection with the vertical groove (50) is arranged on the lifting block (7), an air cylinder (52) is arranged in the cable well (1), a pushing block (53) is arranged at the movable end of the air cylinder (52), a connecting rod (54) is arranged between the pushing block (53) and the guide rod (51), and two ends of the connecting rod (54) are respectively connected with the pushing block (53) and the guide rod (51) in a rotating mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410074330.9A CN117595189B (en) | 2024-01-18 | 2024-01-18 | High-voltage cable connecting device convenient to overhaul |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410074330.9A CN117595189B (en) | 2024-01-18 | 2024-01-18 | High-voltage cable connecting device convenient to overhaul |
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| CN117595189B true CN117595189B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410074330.9A Active CN117595189B (en) | 2024-01-18 | 2024-01-18 | High-voltage cable connecting device convenient to overhaul |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1257504A (en) * | 1969-06-11 | 1971-12-22 | ||
| US4733019A (en) * | 1985-10-14 | 1988-03-22 | Siemens Aktiengesellschaft | Cable joint with end bodies and a longitudinally slotted sleeve |
| JPH10336832A (en) * | 1997-05-28 | 1998-12-18 | Mitsubishi Cable Ind Ltd | Method and apparatus for assembling power cable connection part |
| KR100831195B1 (en) * | 2007-12-28 | 2008-05-22 | (주)상일전설 | A cable connection device for underground low pressure |
| KR102024670B1 (en) * | 2019-07-23 | 2019-09-25 | 우주종합엔지니어링 주식회사 | Underground distribution line connection device capable of stable distribution |
| CN209896285U (en) * | 2019-07-29 | 2020-01-03 | 重庆科创职业学院 | Reinforced electric cable connector |
| CN210867153U (en) * | 2019-09-16 | 2020-06-26 | 广东电网有限责任公司 | Sealing device for cable intermediate joint |
| CN112736833A (en) * | 2020-12-28 | 2021-04-30 | 广东电网有限责任公司中山供电局 | Rapid switching recovery power supply cable assembly |
| CN215817470U (en) * | 2021-08-05 | 2022-02-11 | 东莞市勤本电子科技有限公司 | Protection device for wire end connector |
| CN216215841U (en) * | 2021-10-27 | 2022-04-05 | 上海飞舟博源石油装备股份有限公司 | Cable connecting piece capable of realizing quick butt joint of cables |
| KR102414670B1 (en) * | 2021-09-03 | 2022-07-01 | 주식회사 유신 | Underground distribution cable connector with improved safety |
| CN218352154U (en) * | 2022-07-08 | 2023-01-20 | 西安新高度网络科技有限公司 | Cable joint protection mechanism for network engineering construction |
| KR102575072B1 (en) * | 2023-02-23 | 2023-09-06 | (주)한동이엔지 | Protection device for connecting underground distribution lines that can protect underground distribution lines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2054975B1 (en) * | 2006-07-28 | 2016-05-11 | Quick Connectors, Inc. | Electrical connector for conductive wires encapsulated in protective tubing |
| US10801290B2 (en) * | 2015-09-22 | 2020-10-13 | Yadira Cardona Aguirre | Safety sealing and reparation device and method for electrical cables that pass through wellheads |
| US10498127B2 (en) * | 2017-09-26 | 2019-12-03 | Te Connectivity Corporation | Link box with removable cable entry seals |
-
2024
- 2024-01-18 CN CN202410074330.9A patent/CN117595189B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1257504A (en) * | 1969-06-11 | 1971-12-22 | ||
| US4733019A (en) * | 1985-10-14 | 1988-03-22 | Siemens Aktiengesellschaft | Cable joint with end bodies and a longitudinally slotted sleeve |
| JPH10336832A (en) * | 1997-05-28 | 1998-12-18 | Mitsubishi Cable Ind Ltd | Method and apparatus for assembling power cable connection part |
| KR100831195B1 (en) * | 2007-12-28 | 2008-05-22 | (주)상일전설 | A cable connection device for underground low pressure |
| KR102024670B1 (en) * | 2019-07-23 | 2019-09-25 | 우주종합엔지니어링 주식회사 | Underground distribution line connection device capable of stable distribution |
| CN209896285U (en) * | 2019-07-29 | 2020-01-03 | 重庆科创职业学院 | Reinforced electric cable connector |
| CN210867153U (en) * | 2019-09-16 | 2020-06-26 | 广东电网有限责任公司 | Sealing device for cable intermediate joint |
| CN112736833A (en) * | 2020-12-28 | 2021-04-30 | 广东电网有限责任公司中山供电局 | Rapid switching recovery power supply cable assembly |
| CN215817470U (en) * | 2021-08-05 | 2022-02-11 | 东莞市勤本电子科技有限公司 | Protection device for wire end connector |
| KR102414670B1 (en) * | 2021-09-03 | 2022-07-01 | 주식회사 유신 | Underground distribution cable connector with improved safety |
| CN216215841U (en) * | 2021-10-27 | 2022-04-05 | 上海飞舟博源石油装备股份有限公司 | Cable connecting piece capable of realizing quick butt joint of cables |
| CN218352154U (en) * | 2022-07-08 | 2023-01-20 | 西安新高度网络科技有限公司 | Cable joint protection mechanism for network engineering construction |
| KR102575072B1 (en) * | 2023-02-23 | 2023-09-06 | (주)한동이엔지 | Protection device for connecting underground distribution lines that can protect underground distribution lines |
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| CN117595189A (en) | 2024-02-23 |
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