Cable connector
One, technical field
The utility model relates to the jockey of oil well cable and downhole tool, is a kind of cable connector.
Two, background technology
Downhole tool that cable connects such as bridging plug, throwing ash tube and other electrical measurement instrument easily produce slippage at the connector place, for preventing the cable slippage, need compress cable connector with rope clip, rope clip compresses the damage that causes the insulating barrier of cable behind the cable easily, makes the cable transmission signal undesired.
Three, summary of the invention
The utility model provides a kind of cable connector, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the flimsy problem of insulating barrier of the easy slippage of existing cable and downhole tool junction, cable.
The technical solution of the utility model realizes by following measure: a kind of cable connector comprises steel wire cable, cable wire fixture, nut and snap joint fast; Steel wire cable comprises outer steel wire, inner steel wire and the cable inner core that is separated from each other; Outer steel wire, inner steel wire are fixedly mounted on respectively in the cable wire fixture, and there is the connection external screw thread in the outside, the bottom of cable wire fixture; The nut screw is arranged on the nut fast and by the nut screw be connected external screw thread and the cable wire fixture is fixedly installed togather, there is the nut cover plate lower end of quick nut, and the cover plate through hole is arranged on the nut cover plate; The upper outside of snap joint has flange, and there is the joint connecting thread in the outside, the bottom of snap joint, and there is the snap joint through hole inside of snap joint, the cable inner core by the cable wire fixture cavity and extend out to the lower end of snap joint through hole; Fast nut is sleeved in the snap joint by the cover plate through hole, and the upper surface of nut cover plate is pressed on the lower surface of flange and the upper end of snap joint and the lower end of cable wire fixture are fixed together.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned cable wire fixture can comprise that taper platen, epicone are carved tube, middle awl is carved tube, divided and carve tube, platen joint and lower cover; The taper platen comprises cable sleeve and is connected round platform, there is cable through-hole the inside of cable sleeve, and up-small and down-big platen taper hole is arranged at the bottom of cable through-hole, and the connection round platform is arranged at the bottom of cable sleeve, the connection screw is arranged at the bottom that connects round platform, and the upper end that connects screw is connected with the lower end of platen taper hole; In the platen taper hole epicone is installed and carves tube, there is the top cylinder through hole that inner steel wire and cable inner core are passed through the inside that epicone is carved tube, and there is the up-small and down-big top cylinder conical surface that matches with the platen taper hole outside that epicone is carved tube, and there is the top cylinder cambered surface lower end that epicone is carved tube; The bottom that connects round platform is installed with the platen joint, the top of platen joint have the top connection screw thread and by the top connection screw thread be connected screw and be fixedly mounted on and connect on the round platform, there is the lower contact screw thread bottom of platen joint and is installed with lower cover, there is the gland screw-threaded counterbore upper end of lower cover and is fixedly connected on the platen joint by lower contact screw thread and gland screw-threaded counterbore, there is the gland cable core hole that the cable inner core is passed the inside of lower cover, and there is the external screw thread of connection in the outside, bottom of lower cover and is installed with quick nut; There are joint taper hole and joint through hole in the inside of platen joint, and the lower end of up big and down small joint taper hole is connected with the upper end of joint through hole, and awl is carved tube in being equipped with in the joint taper hole; There is the up big and down small middle tube conical surface that matches with the joint taper hole in the outside that middle awl is carved tube, and there is middle tube through hole the inside that middle awl is carved tube; Divide the top carve tube be sleeved in the tube through hole, divide the upper end of carving tube that the branch tube conical surface up-small and down-big and that inner steel wire is separated with the cable inner core is arranged, divide the lower end of carving tube to hold out against on the bottom surface of gland screw-threaded counterbore; The top of outer steel wire is installed in the platen taper hole and is pressed on by the top cylinder conical surface on the inwall of platen taper hole, the middle part of outer steel wire be installed in the joint taper hole and by in a tube conical surface be pressed on the inwall of joint taper hole; Inner steel wire by epicone carve a lower end and middle awl carve the tube upper end joint and by in the awl upper end of carving tube be pressed on the top cylinder cambered surface.
Can be equipped with down in the above-mentioned joint through hole and carve tube, there is the doffing through hole inside of carving tube down, divide the bottom of carving tube to be sleeved in the doffing through hole, outer steel wire extends to joint through hole bottom, the middle part of outer steel wire carve a lower end by middle awl and carve down the joint of tube upper end and carved down a upper surface be pressed in awl carve on the lower surface of tube, the bottom of outer steel wire is installed in the doffing through hole and is pressed on the lateral surface that branchs carve tin.
Can be evenly equipped with on the above-mentioned top cylinder conical surface along the top cylinder indent of top cylinder cone element direction, can be evenly equipped with top cylinder arc groove on the top cylinder cambered surface, can be evenly equipped with the middle tube indent of tube cone element direction in the edge on the middle tube conical surface along top cylinder cambered surface generatrix direction; The top of outer steel wire is divided equally and is installed in the top cylinder indent and is pressed on the inwall of platen taper hole, the middle part of outer steel wire be installed in the tube indent in and be pressed on the inwall of joint taper hole, inner steel wire divided equally and be installed in the top cylinder arc groove and be pressed in the awl carves the tube the upper surface on.
Can be evenly equipped with axial doffing indent on the inwall of above-mentioned doffing through hole; The bottom of outer steel wire is installed in the doffing indent and is pressed in branch and carves on the lateral surface of tube.
Can there be upper press cover the outside of above-mentioned cable sleeve, there is upper cover plate the upper end of upper press cover, the gland through hole is arranged on the upper cover plate and be sleeved on the cable sleeve by the gland through hole, the upper outside that connects round platform has the platen screw thread, and there is the gland screw bottom of upper press cover and is fixedly mounted on the gland screw by the platen screw thread and is connected on the round platform; Upper cover plate has upper press ring with being connected between the round platform, the pressure ring hole is arranged in the upper press ring and be contained on the cable sleeve by the pressure ring borehole jack, cable sleeve and the junction that is connected round platform are evenly equipped with the interior steel wire platen hole of vertical direction, the lower ending opening in interior steel wire platen hole is positioned on the upper surface that connects screw, and the upper end open in interior steel wire platen hole is positioned on the upper surface that connects round platform; Inner steel wire extends to the top that connects round platform, inner steel wire is walked around the top cylinder cambered surface and is passed interior steel wire platen hole from bottom to top, the lower surface of upper cover plate compresses upper press ring, and the end of inner steel wire is positioned on upper end that connects round platform and the upper surface that is pressed on the connection round platform by the upper press ring lower end.
The lower end of above-mentioned outer steel wire may extend to the bottom of platen joint and is reached the lower surface of carving tube down by the lower surface of platen joint and is pressed on the bottom surface of gland screw-threaded counterbore.
The utility model reasonable and compact in structure, easy to use, it is fixedly connected on outer steel wire and the inner steel wire by the cable wire fixture, links together by snap joint and downhole tool, has safe, reliable, easy, characteristics of high efficiency.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic diagram for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is the sectional structure enlarged diagram at A-A place in the accompanying drawing 1.
Accompanying drawing 3 is looked the sectional structure enlarged diagram for the master of the taper platen in the accompanying drawing 1.
The master that accompanying drawing 4 is carved tube for the epicone in the accompanying drawing 1 looks the sectional structure enlarged diagram.
Accompanying drawing 5 is the right TV structure schematic diagram of accompanying drawing 4.
The master that accompanying drawing 6 is carved tube for the middle awl in the accompanying drawing 1 looks the sectional structure enlarged diagram.
Accompanying drawing 7 is the left TV structure schematic diagram of accompanying drawing 6.
Coding in the accompanying drawing is respectively: 1 is quick nut, and 2 are snap joint, and 3 is outer steel wire, 4 is inner steel wire, and 5 is the cable inner core, and 6 for connecting external screw thread, 7 is the nut screw, and 8 is the nut cover plate, and 9 is the cover plate through hole, 10 is flange, and 11 is the joint connecting thread, and 12 are the snap joint through hole, 13 carve tube for epicone, and 14 carve tube for middle awl, and 15 carve tube for dividing, 16 is the platen joint, and 17 is lower cover, and 18 is cable sleeve, 19 for connecting round platform, and 20 is cable through-hole, and 21 is the platen taper hole, 22 for connecting screw, 23 is the top cylinder through hole, and 24 is the top cylinder conical surface, and 25 is the top cylinder cambered surface, 26 are the top connection screw thread, 27 are the lower contact screw thread, and 28 is the gland screw-threaded counterbore, and 29 is gland cable core hole, 30 is the joint taper hole, 31 is the joint through hole, and 32 is the middle tube conical surface, and 33 is middle tube through hole, 34 for dividing the tube conical surface, 35 under carve tube, 36 is the doffing through hole, 37 is the top cylinder indent, 38 is top cylinder arc groove, 39 is middle tube indent, and 40 is interior steel wire platen hole, and 41 is upper press cover, 42 is upper cover plate, 43 is the gland through hole, and 44 is the platen screw thread, and 45 is the gland screw, 46 is upper press ring, and 47 is the pressure ring hole.
Five, embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete execution mode according to the technical solution of the utility model and actual conditions.
Below in conjunction with most preferred embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this cable connector comprises steel wire cable, cable wire fixture, nut 1 and snap joint 2 fast; Steel wire cable comprises outer steel wire 3, inner steel wire 4 and the cable inner core 5 that is separated from each other; Outer steel wire 3, inner steel wire 4 are fixedly mounted on respectively in the cable wire fixture, and there is the external screw thread 6 of connection in the outside, the bottom of cable wire fixture; Nut screw 7 is arranged on the nut 1 fast and by nut screw 7 with is connected external screw thread 6 and the cable wire fixture is fixedly installed togather, there is nut cover plate 8 lower end of quick nut 1, and cover plate through hole 9 is arranged on the nut cover plate 8; The upper outside of snap joint 2 has flange 10, there is joint connecting thread 11 in the outside, bottom of snap joint 2, there is snap joint through hole 12 inside of snap joint 2, cable inner core 5 by the cable wire fixture cavity and extend out to the lower end of snap joint through hole 12; Fast nut 1 is sleeved in the snap joint 2 by cover plate through hole 9, and the upper surface of nut cover plate 8 is pressed on the lower surface of flange 10 and the upper end of snap joint 2 and the lower end of cable wire fixture are fixed together.Fast nut 1 and snap joint 2 can be convenient to and being connected of downhole tool, and can not make the steel wire cable strand because of the rotation screw thread together.
Can according to actual needs above-mentioned cable connector be made further optimization and/or improvements:
Shown in accompanying drawing 1,2,3, the cable wire fixture comprises that taper platen, epicone are carved tube 13, middle awl is carved tube 14, divided and carve tube 15, platen joint 16 and lower cover 17; The taper platen comprises cable sleeve 18 and is connected round platform 19, there is cable through-hole 20 inside of cable sleeve 18, up-small and down-big platen taper hole 21 is arranged at the bottom of cable through-hole 20, the round platform 19 of connection is arranged at the bottom of cable sleeve 18, the screw 22 of connection is arranged at the bottom that connects round platform 19, and the upper end that connects screw 22 is connected with the lower end of platen taper hole 21; Epicone is installed in the platen taper hole 21 carves tube 13, there is the top cylinder through hole 23 that inner steel wire 4 and cable inner core 5 are passed through the inside that epicone is carved tube 13, there is the up-small and down-big top cylinder conical surface 24 that matches with platen taper hole 21 outside that epicone is carved tube 13, and there is top cylinder cambered surface 25 lower end that epicone is carved tube 13; The bottom that connects round platform 19 is installed with platen joint 16, the top of platen joint 16 have top connection screw thread 26 and by top connection screw thread 26 be connected screw 22 and be fixedly mounted on and connect on the round platform 19, there is lower contact screw thread 27 bottom of platen joint 16 and is installed with lower cover 17, there is gland screw-threaded counterbore 28 upper end of lower cover 17 and is fixedly connected on the platen joint 16 by lower contact screw thread 27 and gland screw-threaded counterbore 28, there is the gland cable core hole 29 that cable inner core 5 is passed the inside of lower cover 17, and there is the external screw thread 6 of connection in the outside, bottom of lower cover 17 and is installed with quick nut 1; There are joint taper hole 30 and joint through hole 31 in the inside of platen joint 16, and the lower end of up big and down small joint taper hole 30 is connected with the upper end of joint through hole 31, and awl is carved tube 14 in being equipped with in the joint taper hole 30; There is the up big and down small middle tube conical surface 32 that matches with joint taper hole 30 in the outside that middle awl is carved tube 14, and there is middle tube through hole 33 inside that middle awl is carved tube 14; Divide the top carve tube 15 be sleeved in the tube through hole 33, divide the upper end of carving tube 15 that the branch tube conical surface 34 up-small and down-big and that inner steel wire 4 is separated with cable inner core 5 is arranged, divide the lower end of carving tube 15 to hold out against on the bottom surface of gland screw-threaded counterbore 28; The top of outer steel wire 3 is installed in the platen taper hole 21 and is pressed on by the top cylinder conical surface 24 on the inwall of platen taper hole 21, the middle part of outer steel wire 3 be installed in the joint taper hole 30 and by in a tube conical surface 32 be pressed on the inwall of joint taper hole 30; Inner steel wire 4 by epicone carve tube 13 lower ends and middle awl carve tube 14 upper ends joint and by in the awl upper end of carving tube 14 be pressed on the top cylinder cambered surface 25.Carving tube 13 by epicone makes outer steel wire 3 separate with inner steel wire 4 and cable inner core 5, carving tube 15 by branch makes inner steel wire 4 separate with cable inner core 5, and carve the latching characteristics locking outer steel wire 3 that tube 13 the top cylinder conical surface 24 cooperates with platen taper hole 21, middle awl is carved tube 14 the middle tube conical surface 32 cooperates with joint taper hole 30 by epicone, by epicone carve tins 13 and middle awl carve an engagement place of tins 14 and lock inner steel wire 4.
As shown in Figure 1, be equipped with down in the joint through hole 31 and carve tube 35, there is doffing through hole 36 inside of carving tube 35 down, the bottom of carving tube 35 down is sleeved in the doffing through hole 36, outer steel wire 3 extends to joint through hole 31 bottoms, tube 14 lower ends are carved by middle awl in the middle part of outer steel wire 3 and the upper surface of carving down the joint of tube 35 upper ends and being carved tube 35 down be pressed in awl carve on the lower surface of tube 14, the bottom of outer steel wire 3 is installed in the doffing through hole 36 and is pressed in branchs and carves on tins 35 the lateral surface.Further lock outer steel wire 3 by carving tube 35 down with the engagement place that middle awl is carved tube 14.
Shown in accompanying drawing 4,5,6,7, be evenly equipped with on the top cylinder conical surface 24 along the top cylinder indent 37 of the top cylinder conical surface 24 generatrix directions, be evenly equipped with top cylinder arc groove 38 on the top cylinder cambered surface 25, be evenly equipped with the middle tube indent 39 of the tube conical surface 32 generatrix directions in the edge on the middle tube conical surface 32 along top cylinder cambered surface 25 generatrix directions; The top of outer steel wire 3 is divided equally and is installed in the top cylinder indent 37 and is pressed on the inwall of platen taper hole 21, the middle part of outer steel wire 3 is installed in the middle tube indent 39 and is pressed on the inwall of joint taper hole 30, and inner steel wire 4 is divided equally and is installed in the top cylinder arc groove 38 and in being pressed in bores on the upper surface of carving tube 14.By top cylinder indent 37, top cylinder arc groove 38, middle tube indent 39 outer steel wire 3 and inner steel wire 4 are divided into uniform several strands and locking, can make stress balance, increase the reliability of junction.
As shown in Figure 1, be evenly equipped with axial doffing indent on the inwall of doffing through hole 36; The bottom of outer steel wire 3 is installed in the doffing indent and is pressed in branch and carves on the lateral surface of tube 15.By the doffing indent, further increase frictional resistance to outer steel wire 3, increase the reliability of junction.
Shown in accompanying drawing 1,3, there is upper press cover 41 outside of cable sleeve 18, there is upper cover plate 42 upper end of upper press cover 41, gland through hole 43 is arranged on the upper cover plate 42 and be sleeved on the cable sleeve 18 by gland through hole 43, the upper outside that connects round platform 19 has platen screw thread 44, and there is gland screw 45 bottom of upper press cover 41 and is fixedly mounted on by platen screw thread 44 and gland screw 45 and is connected on the round platform 19; Upper cover plate 41 has upper press ring 46 with being connected between the round platform 19, pressure ring hole 47 is arranged in the upper press ring 46 and be sleeved on the cable sleeve 18 by pressure ring hole 47, cable sleeve 18 and the junction that is connected round platform 19 are evenly equipped with the interior steel wire platen hole 40 of vertical direction, the lower ending opening in interior steel wire platen hole 40 is positioned on the upper surface that connects screw 22, and the upper end open in interior steel wire platen hole 40 is positioned on the upper surface that connects round platform 19; Inner steel wire 4 extends to the top that connects round platform 19, inner steel wire 4 is walked around top cylinder cambered surface 25 and is passed interior steel wire platen hole 40 from bottom to top, the lower surface of upper cover plate 42 compresses upper press ring 46, and the end of inner steel wire 4 is positioned on upper end that connects round platform 19 and the upper surface that is pressed on connection round platform 19 by upper press ring 46 lower ends.By upper press cover 41 and upper press ring 46 and interior steel wire platen hole 40, further increase coupling mechanism force to inner steel wire 4, increase the reliability of junction.
As shown in Figure 1, the lower end of outer steel wire 3 extends to the bottom of platen joint 16 and is reached the lower surface of carving tube 35 down by the lower surface of platen joint 16 and is pressed on the bottom surface of gland screw-threaded counterbore 28.By platen joint 16, carve the tube 35 and the locking of lower cover 17 down, further increase coupling mechanism force to outer steel wire 3, increase the reliability of junction.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The course of work of the utility model most preferred embodiment is: at first, steel wire cable is penetrated in the cable through-hole 20, strip off outer steel wire 3 also is divided into uniform several strands with it, epicone is carved tube 13 to embed between outer steel wire 3 and the inner steel wire 4, it is stretching that per share outer steel wire 3 is put into top cylinder indent 37, and the tight epicone of embedding is carved tube 13 makes outer steel wire 3 and platen taper hole 21 compress the formation self-locking; Then, strip off inner steel wire 4, squeeze into branch and carve tube 15, by a minute tube conical surface 34 inner steel wire 4 and cable inner core 5 are peeled off, inner steel wire 4 is divided into uniform several strands and stretching, and steel wire platen hole 40 and strain stretchingly in passing from bottom to top respectively again along top cylinder arc groove 38 embeds upper press ring 46 inner steel wire 4 is fixed, the unnecessary steel wire of inner steel wire 4 tail ends is cut off in curved direct join, screws upper press cover 41 inner steel wire 4 tail ends are compressed; Then, the per share steel wire of outer steel wire 3 is stretching, awl is carved tube 14 in being inserted in, it is stretching that outer steel wire 3 is put into tube indent 39, screw platen joint 16, the joint taper hole 30 of tube indent 39 and platen joint 16 compresses the formation self-locking to outer steel wire 3 once more in the right side, carve tube 35 under embedding afterwards, outer steel wire 3 is fixed in the doffing indent, the unnecessary steel wire of outer steel wire 3 tail ends is cut off in curved direct join, screw lower cover 17, so just outer steel wire 3 and inner steel wire 4 and cable wire fixture are firmly fixed and link together, make cable inner core 5 not be subjected to pulling force; At last, turn snap joint 2, by joint connecting thread 11 that snap joint 2 and the downhole tool that will be connected is fixedly connected good, turn quick nut 1 again, by lower contact screw thread 27 be connected external screw thread 6 the lower end locking of quick nut 1 with lower cover 17 got final product.