Summary of the invention
The technical problems to be solved in the utility model is, at the prior art above shortcomings, thereby providing a kind of can effectively solve cable link electric field distortion problem, guarantee cable detachable connector of the equally distributed cable of link electric field and stress cone positioner thereof by the strong fix stress cone, easy for installation, safe in utilization, reliable.
The technical scheme that its technical problem that solves the utility model adopts is: provide a kind of cable detachable connector, comprise the body that to accommodate cable link and equipment link, be located in this body, can electrically connect the binding post of cable link and equipment link, and can be sheathed on insulating barrier that the cable link exhumes out and the screen and be installed on intrinsic stress cone; But described connector also comprises fixed cover and is located at the positioner on the cable link outsourcing insulated tube, and this positioner is an annular, and an end butt of described stress cone is to this positioner.
Described positioner is for radially straining the ring-type positioner that the formula chain belt forms.
Described positioner is a screw-threaded coupling device.
Described positioner comprises annular first Coupling that can be sheathed on the cable link outsourcing insulated tube and annular first locking member that is sheathed on this annular first Coupling, wherein said first Coupling, one end is the cylindrical end that outer surface is provided with screw thread, the other end is a tapered end, and this tapered end is provided with a plurality of notches so that this tapered end is divided into a plurality of compartments; The described first locking member inner surface is provided with screw thread, and this locking member one end has inner edge along the inside projection of internal diameter direction; The described first locking member inner surface can cooperate with the outer surface thread of the described first Coupling cylindrical end, makes the set inner edge of described first locking member, one end compress the outer surface of the described first Coupling tapered end.
Described positioner is awl wedge axial pressing device.
Described positioner comprises annular second Coupling that can be sheathed on the cable link outsourcing insulated tube and annular second locking member that is sheathed on this annular second Coupling, the outer surface of wherein said second Coupling is the convergent conical surface, and the inner surface of described second locking member is the respective tapered conical surface that can cooperate with the described second Coupling intimate.
Described stress cone is the stress cone that homogenous material is made.
Described positioner is positioned at outside the described body, an end of the described stress cone of a side butt.
The utility model also provides the stress cone positioner of the detachable connector of a kind of cable, this stress cone positioner is an annular, and but fixed cover is located on the cable link outsourcing insulated tube, connects with an end that is sheathed on the stress cone on cable link insulating barrier and the screen.
Described stress cone positioner is one of ring-type positioner, screw-threaded coupling device and awl wedge axial pressing device of radially straining the formation of formula chain belt.
The utility model is by being provided with the circular orientation device, can be on cable with the stress cone secure, be difficult for producing displacement, thereby can effectively solve cable link electric field distortion problem, make that cable link place Electric Field Distribution is more even, avoided electric field stress to concentrate thus and phenomenon such as connector body interface electric leakage causes interruption of service.And positioning device structure of the present utility model is simple, and is easy for installation, can form tight the contact with cable link and stress cone, and is difficult for producing distortion and displacement, safe and reliable.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the cross-sectional schematic of the detachable connector stube cable of cable of the present utility model link.
Fig. 2 is stress cone of the present utility model and positioner thereof and the schematic diagram that cooperates of cable link.
Fig. 3 is the part cross-sectional schematic of stress cone of the present utility model and positioner and cable link.
Fig. 4 is the schematic perspective view of the positioner of the utility model first embodiment.
Fig. 5 is the front view of the positioner of the utility model first embodiment.
Fig. 6 is the vertical view of the positioner of the utility model first embodiment.
Fig. 7 is the cutaway view of the positioner of the utility model second embodiment.
Fig. 8 is the vertical view of the positioner of the utility model second embodiment.
Fig. 9 is the front view of the positioner of the utility model the 3rd embodiment.
Figure 10 is the cutaway view of the positioner of the utility model the 3rd embodiment.
Figure 11 is the vertical view of the positioner of the utility model the 3rd embodiment.
Figure 12 is the application schematic diagram of the detachable connector of cable of the present utility model.
Embodiment
Shown in Fig. 1,12, the detachable connector of cable of the present utility model is used for stube cable and electric equipment, comprises body 10, is located at binding post 11, stress cone 12 and positioner 13 in the body 10.The two ends of body 10 are respectively equipped with first receiving space 101 and second receiving space 102, are respectively applied for the cable link 2 and the electric equipment link 3 of accommodating cable.The cable link 2 and the electric equipment link 3 that are contained in the body 10 can be electrically connected by binding post 11.Described cable is provided with core, insulating barrier and screen from inside to outside successively, and is surrounded by insulated tube outward, and its cable link 2 is by the core 21 that exhumes out respectively behind the forward direction, insulating barrier 22 and screen 23.
Simultaneously with reference to Fig. 2 and Fig. 3, positioner 13 in the form of a ring, in the present embodiment, its inner surface is the face of cylinder, outer surface can be various cylinders, (being the face of cylinder shown in Fig. 1-3,12) such as for example anistree cylinder, the faces of cylinder.This positioner 13 can be locked on the outsourcing insulated tube 24 of cable link 2; Stress cone 12 can be sheathed on the screen 23 and insulating barrier 22 of cable link 2 outsourcing insulated tubes 24 front ends, closely cooperates with this cable link 2, and one end butt is to described positioner 13 1 sides.During installation, cable link 2 is contained in first receiving space 101, the insulating barrier 22 and the screen 23 of stress cone 12 inwalls and described cable link 2 closely cooperate, outer wall then closely cooperates with the inwall of first receiving space 101, and an end butt of this stress cone 12 is to positioner 13 1 sides, by these positioner 13 location.This ring-type positioner 13 is locked on the outsourcing insulated tube 24 of cable link 2, is positioned at outside first receiving space 101.
Below exemplify several embodiment so that positioner 12 of the present utility model is described further.
Shown in Fig. 4-6, in the utility model first embodiment, positioner 13 is one radially to strain formula chain belt 13 ', this chain belt has certain thickness, can form circulus, Strain lock is fixed on the outsourcing insulated tube 24 of cable link 2, and one sidewall and stress cone 12 1 ends connect, so that stress cone 12 is located.
Shown in Fig. 7-8, in the utility model second embodiment, positioner 13 is a screw-threaded coupling device 13 ", comprise first Coupling 131 " and first locking member 132 ", this first Coupling 131 " and first locking member 132 " be annular.First Coupling 131 wherein " end 133 " be cylindric, and this cylindrical end 133 " outer surface is provided with screw thread, the other end 134 " then be gradually-reducing shape, this tapered end 134 " be provided with a plurality of notches, so that this end is divided into a plurality of compartments.First locking member 132 " outer surface is anistree column (can certainly be other shapes), and inner surface is the face of cylinder and which is provided with screw thread.This first locking member 132 " end has inner edge 135 along the inside projection of internal diameter direction ".First locking member 132 " can with first Coupling 131 " be threaded, be placed on this first Coupling 131 " outside; at this moment; first locking member 132 " the screw thread and first locking member 132 on the inner surface " cylindrical end 133 " threaded engagement on the outer surface, first locking member 132 " the set inner edge 135 of an end " then with first Coupling 131 " tapered end 134 " and outer surface connect.Because first Coupling 131 " tapered end 134 " be provided with a plurality of notches and be divided into a plurality of compartments by these a plurality of notches, so this tapered end 134 " can radially tighten.So, at first locking member 132 " with first Coupling 131 " further under the threaded engagement, first locking member 132 " inner edge 135 of an end " can further compress first Coupling 131 " tapered end 134 ", make this tapered end 134 " radially tighten.
With this screw-threaded coupling device 13 " when cooperating with cable link 2; earlier with first Coupling 131 " be placed on cable link 2 outsourcing insulated tubes 24 predeterminated positions, then with first locking member 132 " be placed on first Coupling 131 " outside, with this first Coupling 131 " threaded engagement; Screw first locking member 132 "; first locking member 132 then " inner edge 135 of an end " further compress first Coupling 131 " tapered end 134 "; make this tapered end 134 " thus radially tightening locking is positioned on the cable link 2, thus, can be with screw-threaded coupling device 13 " be locked on the cable link 2 outsourcing insulated tubes 24.Stress cone 12 is installed on the insulating barrier 22 and screen 23 of cable link 2 subsequently, makes that one end butt is to this screw-threaded coupling device 13 " side, so that this stress cone 12 is located.
Shown in Fig. 9-11, in the utility model the 3rd embodiment, positioner 13 is awl wedge axial pressing device 13 " ', comprise second Coupling 131 " ' and second locking member 132 " ', this second Coupling 131 " ' and second locking member 132 " ' be annular.Second Coupling 131 wherein " ' outer surface be the convergent conical surface, inner surface then can closely cooperate with cable link 2 outsourcing insulated tubes 24.Second locking member 132 " ' inner surface be can with second Coupling 131 " ' the respective tapered conical surface that cooperates of intimate.Second locking member 132 " ' can be placed on second Coupling 131 " ' outside, axially promote this second locking member 132 " ' can make second locking member 132 " ' along second Coupling 131 " ' outer surface slide; its inner surface and second Coupling 131 " ' intimate cooperates, and along the continuous locking of the convergent conical surface second Coupling 131 " '; it is radially inwardly compressed, to closely cooperate with cable link 2.
Should bore wedge axial pressing device 13 " ' when cooperating with cable link 2; earlier with second Coupling 131 " ' be placed on cable link 2 outsourcing insulated tubes 24 predeterminated positions, then with second locking member 132 " the bigger end of internal diameter is from second Coupling 131 " outside ' external diameter be placed on second Coupling 131 " ' than small end.Axially promote this second locking member 132 " ' make it along second Coupling 131 " ' the outer surface slip, second locking member 132 " ' inner surface and second Coupling 131 " ' intimate cooperates, and along the continuous locking of the convergent conical surface second Coupling 131 " '; it is radially inwardly compressed; to closely cooperate with cable link 2; thereby locking is positioned on the cable link 2, thus, can bore wedge axial pressing device 13 " ' be locked on the cable link 2 outsourcing insulated tubes 24.Stress cone 12 is installed on the insulating barrier 22 and screen 23 of cable link 2 subsequently, makes one end butt to this awl wedge axial pressing device 13 " ' one side, so that this stress cone 12 is located.
Certainly, except the foregoing description, detachable connector of the utility model cable and stress cone positioner thereof also can adopt other various circular orientation devices 13, as long as can evenly be locked in the link of cable, and butt stress cone 12 firmly, can with stress cone 12 positioning instants.
In addition, in embodiment of the present utility model, stress cone 12 is the integral type stress cone, promptly adopts simple stress to evacuate the stress cone that material is made, and concentrates thereby control electric field strength more equably.Certainly, the utility model is applicable to other various forms of stress cones too, for example stress cone of being made by two kinds of materials etc.
Figure 12 is the application schematic diagram of the detachable connector of cable of the present utility model.When the detachable connector of cable of the present utility model is used for stube cable and electric equipment, earlier at the cable link 2 ends core 21 that exhumes out, one section insulating barrier 22 exhumes out at core 21 rear portions, one section screen 23 exhumes out at insulating barrier 22 rear portions, and on the outsourcing insulated tube 24 of cable, do a witness marker, excise the cable branch unnecessary outsourcing insulated tube 24 that cold (heat) contract of getting along afterwards.Earlier positioner 13 is nested with and lock onto witness marker place on the outsourcing insulated tube 24 according to above-mentioned installation method, again stress cone 12 is placed on the insulating barrier 22 of exposure and the screen 23 and butt to positioner 13 1 sides.Afterwards, crimping binding post 11 on core 21 inserts the cable link 2 that presses binding post 11 in first receiving space 101 of body 10 1 ends again.Then, cover is located on the electric equipment as for the detachable connector device of this cable on this cable, electric equipment link 3 is inserted in second receiving space 102 of body 10 1 ends, make stud pass binding post 11, be inserted in plain washer, spring washer and use nut check binding post 11, the detachable connector afterbody of cable screws in insulating plug, puts the shielding sealing cap, with ground connection, promptly realize the electric connection of cable and electric equipment.
This shows, the utility model is by being provided with the circular orientation device, can be on cable with the stress cone secure, be difficult for producing displacement, thereby can effectively solve cable link electric field distortion problem, make that cable link place Electric Field Distribution is more even, avoided electric field stress to concentrate thus and phenomenon such as connector body interface electric leakage causes interruption of service.And positioning device structure of the present utility model is simple, and is easy for installation, can form tight the contact with cable link and stress cone, and is difficult for producing distortion and displacement, safe and reliable.
The detachable connector of cable of the present utility model can be realized being connected of 8.7/15kV, 12/20kV, 26/35kV power cable and other various power cables and electric equipment.
The above case is a preferable case study on implementation of the present utility model; be not to limit practical range of the present utility model with this; so all equivalences of being done in any electric pressure according to shape of the present utility model, structure and principle change, and all should be covered by in the protection range of the present utility model.