CN115133491A

CN115133491A - Cable terminal connecting device

Info

Publication number: CN115133491A
Application number: CN202211050061.XA
Authority: CN
Inventors: 刘冰; 尹超; 张培军; 楚孔飞
Original assignee: Shandong Bocheng Electric Co ltd
Current assignee: Shandong Bocheng Electric Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-09-30
Anticipated expiration: 2042-08-31
Also published as: CN115133491B

Abstract

The invention relates to the technical field of cable equipment application, and particularly discloses a cable terminal connecting device which comprises a wire end joint component, a connecting terminal joint component and a conducting patch set, wherein the wire end joint component consists of a cable outer sleeve connecting shell and a stripping end embedded casing; after the shrink paster of pressure laminating is inboard to the income lock sleeve shrink, both are connected with the end and aim at paster surface contact, the shrink paster of pressure laminating will attach the ring extrusion, and then increase the contact friction who aims at the paster and the required contact surface of electrical conductivity of income lock sleeve and end connection, pressfitting activity restriction portion observes the chamber through the contact position simultaneously and slides the back, when being in with the state that the control identification element that resets overlaps, promptly income lock sleeve bottom is connected with the end and is aimed at the paster and fully laminates, the control identification element that resets this moment starts to show assembly personnel installation laminating stability through the light source performance, reduce cable termination and copper bar contact resistance after guaranteeing the laminating degree.

Description

Cable terminal connecting device

Technical Field

The invention relates to the technical field of cable equipment application, in particular to a cable terminal connecting device.

Background

Because the conductive characteristic of the material of resistance, the conductive contact area, ambient temperature, and the power influence that resistance can bear, can cause contact resistance's increase, wherein the contact area of conductive contact is produced the change easily, for example when complete sets are to the maximum load current test, because the screw, the gasket all is steel material, and the copper nose, the copper bar is copper material, when heavy current work, its temperature is different to the influence of two kinds of materials, under thermal expansion effect, the nut will have some skew, hardly recover original position under the effect of not having the external force after the material thermal expansion, can cause the effective contact surface of copper nose and copper bar to influence the contact steadiness along with the temperature change, consequently, will guarantee the contact reliability between cable terminal connector and the copper bar tie point when the maximum load current test.

Because the connected mode of common cable termination connecting piece and copper bar is after the installation operation is accomplished, when its mounting point exists in the narrow position in the cabinet, operating personnel because the alignment when the difficult butt joint contact surface installation of place restriction, the judgement of putting in place is made to the state of compressing tightly, simultaneously when the later stage causes the temperature influence to make the connecting piece thermal expansion stereo set produce the contact surface skew because of heavy current work, can cause virtual joint to produce resistance increase, the production of this information can't be obtained when operating personnel patrols and examines, consequently, possess the potential safety hazard under the long-time production of this phenomenon. To this end, we propose a cable termination connection device.

Disclosure of Invention

The invention mainly aims to provide a cable terminal connecting device. In order to achieve the purpose, the invention adopts the technical scheme that: a cable terminal connecting device comprises a cable end joint component, a connecting terminal joint component and a conducting patch group, wherein the cable end joint component consists of a cable outer sleeve joint shell and a stripping end embedded casing, the cable outer sleeve joint shell is in threaded connection with the stripping end embedded casing, the stripping end embedded casing is fixedly connected with a butt joint embedding end, the butt joint embedding end is inserted into the inner side of the cable joint end and is in butt joint installation with the inner side of the connecting terminal joint component, the cable outer sleeve joint shell is fixedly connected with a wire inlet locking part, the wire inlet locking part is sleeved on the outer side of the cable joint end and is used for anti-slip limitation after the cable joint end is embedded into the inner side of the butt joint embedding end, the connecting terminal butt joint component is installed at the bottom end of the connecting terminal joint component, and the connecting terminal joint component comprises an insulation protection casing and a through connecting end seat, the insulation protection casing and the through connection end seat are fixedly connected, one end of the butt connection embedding end is clamped and connected with the inner side of the insulation protection casing, the inner side of the insulation protection casing is provided with a gradually-changed curved assembly cavity matched with the butt connection embedding end, the connection terminal butt connection component comprises a bottom through contact patch, a take-in lock sleeve, a pressure fit contraction patch, a pressure fit ring and a bottom connection alignment patch, the bottom through contact patch is fixedly connected with the bottom of the insulation protection casing and used for electrically communicating the through connection end seat with the take-in lock sleeve, the take-in lock sleeve is fixedly connected with the bottom of the bottom through contact patch, the pressure fit contraction patch is in sliding connection with the take-in lock sleeve, the pressure fit ring is annularly sleeved on the outer side of the pressure fit contraction patch, and the bottom connection alignment patch is fixedly connected with the bottom of the pressure fit contraction patch, when the bottom through contact patch is in threaded connection with the copper bar connecting piece, the degree of contraction of the pressure fit contraction patch towards the inner side of the retraction lock sleeve is used for judging the fit state of the bottom connection alignment patch and the copper bar connecting face.

The invention has the further improvement that the conduction patch set comprises a first bonding copper guide sheet and a second bonding copper guide sheet, the first bonding copper guide sheet is fixedly connected to the inner wall of the butt-joint embedding end, the second bonding copper guide sheet is fixedly connected to the inner wall of the insulating protection casing, and after the insulating protection casing and the butt-joint embedding end are mutually clamped, the electric conduction between the cable terminal and the through connection end seat is realized through the first bonding copper guide sheet and the second bonding copper guide sheet.

The invention is further improved in that a reset monitoring identification unit for prompting in-place contact is arranged on the surface wall of the retraction lock sleeve, a contact position observation cavity is formed in the retraction lock sleeve, a pressing movable limiting part which slides longitudinally along the inner side of the contact position observation cavity is fixedly connected to the inner side of the pressure fit contraction patch, and the bottom connection alignment patch is in place fit with the copper bar connecting surface after the pressing movable limiting part is overlapped and aligned with the reset monitoring identification unit.

The invention is further improved in that an internal thread connecting groove screwed with the copper bar connecting piece is formed in the inner side of the receiving lock sleeve, and after the receiving lock sleeve is fixed with the copper bar connecting piece through the internal thread connecting groove, the pressed attaching ring shrinks under the extrusion force of the receiving lock sleeve to increase the contact surface and the friction force between the receiving lock sleeve and the bottom connection aligning paster.

The invention has the further improvement that a pressing and positioning concave strip for providing an extrusion operation surface when the cable is pressed and limited is embedded in the inner side of the butt joint embedding end head.

The invention has the further improvement that the reset monitoring identification unit consists of a non-self-locking switch, a lamp bead and a buzzer, the non-self-locking switch, the lamp bead and the buzzer are all fixedly connected with the outer wall of the receiving lock sleeve, and the outer wall of the pressing movable limiting part is fixedly connected with a connecting sheet.

A further improvement of the present invention is a method for using a cable termination connection device, comprising the steps of:

step S1, firstly, sleeving the wire inlet locking part at the outer side of the cable joint, placing the stripping end into the casing and screwing and installing the cable outer casing to enable the cable skin and the wire core part to be positioned at the position of the butt-joint embedded end in the inner side of the stripping end placed into the casing, extruding the press-fit positioning concave strip part through a wire pressing pliers to realize press-fit limit on the cable, and then mutually inserting the butt-joint embedded end and the gradual change curved assembly cavity to enable the first attaching copper guide sheet and the second attaching copper guide sheet to mutually contact and then complete electric conduction between the cable and the connecting terminal joint component;

step S2, after the assembly of the line end joint component and the connection terminal joint component, inserting the copper bar connecting piece into the position of the receiving lock sleeve through the bottom connection aligning patch, screwing the copper bar connecting piece and the receiving lock sleeve through the thread of the copper bar connecting piece, making the copper bar connecting piece enter the inner side of the through connection end seat, at this time, the bottom connection aligning patch contacts with the surface of the copper bar, and the pressure fit contraction patch slides to the inner side of the receiving lock sleeve, at the same time, the pressed attaching ring is pressed by the receiving lock sleeve and the bottom connection aligning patch after the receiving lock sleeve retracts to the inner side of the pressure fit contraction patch, making the top surface of the pressed attaching ring contact with the received lock sleeve, the bottom surface of the pressed attaching ring contacts with the bottom connection aligning patch, and then the contact friction force between the receiving lock sleeve and the bottom connection aligning patch is increased, until the pressing movable limiting part slides through the contact position observation cavity and is in the state of overlapping with the reset monitoring identification unit, the bottom of the lock sleeve is connected with the bottom of the lock sleeve, the alignment paster is fully attached, and meanwhile, the pressed attachment ring is pressed in place, so that the pressing firmness of the contact position of the copper bar connecting piece is kept, and the contact resistance of the connected cable terminal and the copper bar contact is reduced.

Compared with the prior art, the copper bar connecting piece is screwed into the inner side of the through connecting end seat through threads, the pressure fit shrinkage patch shrinks towards the inner side of the retraction lock sleeve, and when the pressure fit shrinkage patch and the bottom connection alignment patch are in surface contact, the pressure fit shrinkage patch extrudes the attachment ring, so that the contact friction force of the retraction lock sleeve and the bottom connection alignment patch is increased, the contact surface required for electrical conduction is increased, and meanwhile, the press fit activity limiting part is in an overlapped position state with the reset monitoring identification unit after sliding through the contact position observation cavity, namely, the bottom of the retraction lock sleeve is fully attached to the bottom connection alignment patch, the reset monitoring identification unit is started to prompt an assembler to install attachment stability through light source expression, and after finishing is prompted according to the light source expression, the contact resistance of a cable terminal and a copper bar contact is reduced after the attachment degree is ensured.

Compared with the prior art, the invention generates deviation between the income lock sleeve and the bottom connection alignment patch in the later period due to overlarge current, so that the income lock sleeve and the pressure fit contraction patch expand and extend to influence an electric conduction contact surface, and after the head end of the stitching activity limiting part and the position of the resetting monitoring identification unit are not in an overlapped state any more, the resetting monitoring identification unit can trigger virtual connection state warning, so that an inspector can quickly obtain the condition and correct the part in time, and the effect of reducing potential safety hazard is achieved.

Drawings

Fig. 1 is a view showing a cable terminal connection device according to the present invention.

Fig. 2 is an isometric view of a cable termination connection apparatus of the present invention.

Fig. 3 is a bottom view of a cable terminal connection device of the present invention.

Fig. 4 is a schematic structural view of a copper bar and a copper bar connecting piece in the cable terminal connecting device of the present invention.

Fig. 5 is a sectional view of a through connection terminal holder, a connection terminal docking member, a copper bar and a copper bar connecting member in the cable terminal connection device of the present invention.

Fig. 6 is a front view of a feedthrough connection header and a connection terminal mating member of a cable termination connection assembly of the present invention.

Fig. 7 is an enlarged view of a portion a in fig. 6.

In the figure: 1. a wire end engagement member; 11. the cable jacket is connected with the shell; 12. the stripping end is arranged in the casing; 13. butt-jointing and embedding the end heads; 131. pressing and positioning the concave strips; 14. a wire-entry locking part; 2. a connection terminal engagement member; 21. an insulating protective enclosure; 22. a gradual curved assembly cavity; 23. a through connection end seat; 3. conducting the patch group; 31. a first copper bonding guide sheet; 32. a second copper conducting sheet is attached; 4. connecting a terminal docking member; 41. bottom through contact patch; 42. the lock sleeve is put in; 421. resetting the monitoring identification unit; 4211. a self-locking switch is not arranged; 4212. a lamp bead; 4213. a buzzer; 422. a contact position observation cavity; 423. an internal thread connecting groove; 43. laminating the contraction patch under pressure; 431. a press-fit movement restricting section; 432. a tab; 44. attaching the ring under pressure; 45. the bottom is connected with the alignment patch; 5. copper bars; 51. copper bar connecting piece.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.

Examples

Referring to fig. 1-7, a cable terminal connection device comprises a cable terminal connection member 1, a connection terminal connection member 2 and a conduction patch set 3, wherein the cable terminal connection member 1 comprises a cable sheath connection 11 and a stripping end insertion casing 12, the cable sheath connection 11 is in threaded connection with the stripping end insertion casing 12, the stripping end insertion casing 12 is fixedly connected with a butt insertion end 13, the butt insertion end 13 is inserted into the inner side of the cable terminal connection and is used for butt-joint installation of the inner side of the connection terminal connection member 2, the cable sheath connection 11 is fixedly connected with a wire insertion locking part 14, the wire insertion locking part 14 is sleeved on the outer side of the cable terminal connection and is used for anti-slip limitation after the cable terminal connection end is inserted into the inner side of the butt insertion end 13, the connection terminal connection member 4 is installed at the bottom end of the connection terminal connection member 2, the connection terminal connection member 2 comprises an insulation protection casing 21 and a through connection terminal seat 23, the insulation protection casing 21 is fixedly connected with the through connection end seat 23, one end of the butt joint embedding end 13 is clamped and connected to the inner side of the insulation protection casing 21, the inner side of the insulation protection casing 21 is provided with a gradual change curved assembly cavity 22 matched with the butt joint embedding end 13, the connection terminal butt joint component 4 comprises a bottom through contact patch 41, a receiving lock sleeve 42, a pressure fit contraction patch 43, a pressure fit attachment ring 44 and a bottom connection alignment patch 45, the bottom through contact patch 41 is fixedly connected to the bottom of the insulation protection casing 21 and used for electrically conducting the through connection end seat 23 and the receiving lock sleeve 42, the receiving lock sleeve 42 is fixedly connected to the bottom of the bottom through contact patch 41, the pressure fit contraction patch 43 is in sliding connection with the receiving lock sleeve 42, the pressure fit attachment ring 44 is sleeved on the outer side of the pressure fit contraction patch 43, and the bottom connection alignment patch 45 is fixedly connected to the bottom of the pressure fit contraction patch 43, when the receiving lock sleeve 42 is in threaded connection with the copper bar connecting piece 51, the pressure fit shrinkage patch 43 is connected to the shrinkage degree judgment bottom of the inner side of the receiving lock sleeve 42 to judge the joint state of the connection surface of the alignment patch 45 and the copper bar 5.

In this embodiment, before the cable terminal connector portion and the copper bar 5 are installed, the outer side of the cable terminal connector is firstly sleeved with the wire locking portion 14, after the installation, the stripped end is placed between the jacket 12 and the cable jacket contact shell 11 to be assembled in a threaded manner, after the assembly, the stripped wire core portion and part of the skin of the cable terminal connector are located at the inner side of the jacket 12, until the wire core portion of the cable terminal connector reaches the position of the butt-joint embedded end 13, the cable is pressed and clamped on the pressing and positioning concave strip 131 portion and is extruded by the cable pressing clamp, so that the cable is pressed and limited with the butt-joint embedded end 13 at the position of the pressing and positioning concave strip 131, the inner side of the wire locking portion 14 is provided with a rubber layer, after the cable placed at the inner side of the wire locking portion 14 is contacted with the rubber layer at the inner side of the wire locking portion 14, the friction is increased after the mutual contact, so as to play a role of increasing the assembly stability of the cable and the stripped end placed in the jacket 12, after the above operations are completed, the assembler inserts the butt-joint embedded terminal 13 with the stripped end inserted into the head end of the casing 12 into the tapered curved assembly cavity 22 formed in the insulation protection casing 21, so that the first attached copper conductive sheet 31 and the second attached copper conductive sheet 32 are contacted with each other, and then the electrical conduction between the cable and the connection terminal joint member 2 is completed, and at this time, the connection between the cable terminal joint part and the terminal joint member 1 and the connection terminal joint member 2 is completed.

Wherein, the inner side of the receiving lock sleeve 42 is provided with an internal thread connecting groove 423 which is screwed with the copper bar connecting piece 51, and after the receiving lock sleeve 42 is fixed with the copper bar connecting piece 51 through the internal thread connecting groove 423, the pressed attaching ring 44 is pressed and contracted by the extrusion force of the receiving lock sleeve 42 to increase the contact surface and the friction force between the receiving lock sleeve 42 and the bottom connecting aligning paster 45; after the assembly of the wire end joint member 1 and the connection terminal joint member 2 is completed, the copper bar connecting member 51 (in this embodiment, a bolt welded on the surface of the copper bar 5) is slidably inserted into the inner side of the bottom connection alignment patch 45 until the copper bar connecting member 51 reaches the bottom position of the receiving lock sleeve 42, an operator screws the through connection terminal base 23 to make the internal thread connection groove 423 formed on the inner side of the receiving lock sleeve 42 and the internal and external threads of the copper bar connecting member 51 cooperatively screwed and installed, until the copper bar connecting member 51 enters the inner side position of the through connection terminal base 23 under the action of the threads, the bottom connection alignment patch 45 fixed at the bottom of the pressure fit shrinkage patch 43 contacts with the surface of the copper bar 5, and the distance between the receiving lock sleeve 42 and the bottom connection alignment patch 45 is reduced, in the process of reducing the distance between the receiving lock sleeve 42 and the bottom connection alignment patch 45, because the through connection terminal base 23 and the receiving lock sleeve 42 are integrally fixed by the bottom through contact patch 41, the through connection end seat 23 can descend along with the screwing action of the screw threads of the receiving lock sleeve 42 and the copper bar connecting piece 51, so that the pressure attaching contraction patch 43 slides and contracts to the inner side of the receiving lock sleeve 42 under the extrusion action when the through connection end seat 23 descends, further the bottom surface of the receiving lock sleeve 42 is contacted with the top surface of the bottom connection alignment patch 45, at the moment, the pressure attaching ring 44 positioned between the receiving lock sleeve 42 and the bottom connection alignment patch 45 is extruded by the pressure generated when the distance between the receiving lock sleeve 42 and the bottom connection alignment patch 45 is reduced, the deformation contraction is realized under the pressure action, the bottom side of the pressure attaching ring 44 is contacted with the surface of the bottom connection alignment patch 45 after being compressed, the top surface of the pressure attaching ring 44 is contacted with the bottom surface of the receiving lock sleeve 42, further, the contact friction force between the receiving lock sleeve 42 and the bottom connection alignment patch 45 is increased, and the contact surface is increased, the whole electrifying contact stability of the connector is kept, the assembly between the retraction lock sleeve 42 and the copper bar connecting piece 51 is completed at the moment, when the pressure fit contraction patch 43 contracts towards the inner side of the retraction lock sleeve 42, because the assembly is realized by the fixed connection mode of the press fit activity limiting part 431 and the pressure fit contraction patch 43, when the contraction sliding towards the inner side of the retraction lock sleeve 42 is generated after the distance between the retraction lock sleeve 42 and the bottom connection alignment patch 45 is reduced by the pressure fit contraction patch 43, because the press fit activity limiting part 431 and the pressure fit contraction patch 43 are fixedly installed integrally, the press fit activity limiting part 431 can slide along with the pressure fit contraction patch 43 and synchronously generate the activity along the inner side of the contact position observation cavity 422 arranged on the retraction lock sleeve 42 until the press fit activity limiting part 431 is synchronously moved along with the sliding retraction of the pressure fit contraction patch 43, the pressure fit contraction patch 43 is completely retracted into the inner side of the lock sleeve 42, at this time, the position of the pressing movable limiting part 431 is overlapped with the reset monitoring identification unit 421, which represents that the bottom of the receiving lock sleeve 42 is fully attached to the bottom connection alignment patch 45, and the assembly between the receiving lock sleeve 42 and the copper bar connecting piece 51 is completed.

The conduction patch group 3 comprises a first attached copper guide sheet 31 and a second attached copper guide sheet 32, the first attached copper guide sheet 31 is fixedly connected to the inner wall of the butt-joint embedded end 13, the second attached copper guide sheet 32 is fixedly connected to the inner wall of the insulating protection casing 21, and after the insulating protection casing 21 and the butt-joint embedded end 13 are clamped with each other, the electric conduction between the cable terminal and the through connection end seat 23 is realized through the first attached copper guide sheet 31 and the second attached copper guide sheet 32; after first laminating copper conducting strip 31 and second laminating copper conducting strip 32 through with insulating protection casing shell 21 with butt joint embedding end 13 lock joint each other merge, through the electrically conductive intercommunication after first laminating copper conducting strip 31 and second laminating copper conducting strip 32 contact each other, make the electrical property of penetrating through contact paster 41 and cable joint end switch on at the bottom of the end of connecting end seat 23, when convenient in the later stage with cable end plug, also can play the effect of maintaining switch on stability.

The retractable lock sleeve 42 is provided with a reset monitoring identification unit 421 for prompting in-place contact on the surface wall, the retractable lock sleeve 42 is provided with a contact position observation cavity 422, the inner side of the pressure fit shrinkage patch 43 is fixedly connected with a press fit movable limiting part 431 which longitudinally slides along the inner side of the contact position observation cavity 422, the bottom connection alignment patch 45 is in-place fit with the connecting surface of the copper bar 5 after the press fit movable limiting part 431 is overlapped and aligned with the reset monitoring identification unit 421, the reset monitoring identification unit 421 consists of a non-self-locking switch 4211, a lamp bead 4212 and a buzzer 4213, the non-self-locking switch 4211, the lamp bead 4212 and the buzzer 4213 are all fixedly connected to the outer wall of the retractable lock sleeve 42, and the outer wall of the press fit movable limiting part 431 is fixedly connected with a connecting piece 432; in this embodiment, both the lamp bead 4212 and the buzzer 4213 are electrically connected with the non-self-locking switch 4211, and the specific monitoring principle of the reset monitoring identification unit 421 is as follows, when the retractable lock sleeve 42 and the copper bar connector 51 are installed and assembled, since the copper bar connector 51 is screwed into the inner side of the retractable lock sleeve 42 under the action of the screw thread of the retractable lock sleeve 42, the distance between the retractable lock sleeve 42 and the bottom connection alignment patch 45 is reduced, and at this time, the pressure fit shrinkage patch 43 slides and shrinks towards the inner side of the retractable lock sleeve 42, so that the pressing movable limiting part 431 installed on the pressure fit shrinkage patch 43 slides along the path inside of the contact position observation cavity 422 in a limiting manner until the contact end contact piece 432 installed at the end part of the pressing movable limiting part 431 slides, and when the contact end contact piece 432 is in an overlapped alignment state with the non-self-locking switch 4211, the non-self-locking switch 4211 is triggered to be opened by the contact extrusion of the contact end contact piece 432, further, the lamp bead 4212 is lighted due to the fact that the self-locking switch 4211 is not in contact, extruded and electrified by the connecting sheet 432, when the lamp bead 4212 is lighted, namely the contact surface of the front bottom connection alignment patch 45 and the retraction lock sleeve 42 is kept stable, if the contact surface of the retraction lock sleeve 42, the pressure fit contraction patch 43 and the pressed attachment ring 44 is thermally expanded due to overlarge current or temperature influence in the later period, the pressure fit contraction patch 43 slides outwards from the inner side of the retraction lock sleeve 42 due to expansion, the distance between the retraction lock sleeve 42 and the bottom connection alignment patch 45 is increased, the contact surface between the retraction lock sleeve 42 and the bottom connection alignment patch 45 is reduced, the pressing movement limiting portion 431 is in fixed connection with the pressure fit contraction patch 43, and the pressing movement limiting portion 431 is synchronously changed along with the sliding of the pressure fit contraction patch 43 towards the outer side of the retraction lock sleeve 42, the stitching movable limiting part 431 is no longer in a position overlapping state with the resetting monitoring identification unit 421, the connecting sheet 432 installed on the stitching movable limiting part 431 is no longer extruded to the non-self-locking switch 4211 in the resetting monitoring identification unit 421 due to the position overlapping, the non-self-locking switch 4211 is closed, at the moment, the lamp bead 4212 is powered off and extinguished along with the closing of the non-self-locking switch 4211, and the buzzer 4213 in the resetting monitoring identification unit 421 receives the power-on and power-off signals of the non-self-locking switch 4211 to realize the on-off state, so that after the buzzer 4213 receives the power-off signal of the non-self-locking switch 4211, the buzzer alarm is given, the polling personnel is prompted by the buzzer alarm, after the unstable gluing information of the current polling connector and the copper bar connecting piece 51 is obtained, the polling personnel can quickly obtain the condition, and can arrive at the part to refit the connector and the copper bar connecting piece 51 in time, thereby playing the effect of reducing the potential safety hazard.

In this embodiment, the later stage is patrolling and examining the in-process, if produce the skew because of the electric current is too big between income lock sleeve 42 and the pressure laminating shrink paster 43, cause income lock sleeve 42 and pressure laminating shrink paster 43 to produce the inflation because of the electric current influence and influence the electrical property and switch on the contact surface, make pressfitting activity restriction portion 431 position no longer with the control identification element 421 partial overlap back that resets, the personnel's accessible of patrolling and examining resets control identification element 421 and triggers virtual connection state warning, make the production that the personnel of patrolling and examining obtained this condition fast revise this part more in time, and then play the effect that reduces the potential safety hazard.

Wherein, the inner side of the butt-joint embedding end head 13 is embedded with a pressing and positioning concave strip 131 for providing an extrusion operation surface when the cable is pressed and limited; after the cable joint end enters the inner side of the butt-joint embedded end head 13, an operator places the cable joint end skin part at the position of the pressing positioning concave strip 131 through a wire pressing pliers to press the cable joint end skin part, so that the exposed wire core part of the cable is always attached to the inner side of the butt-joint embedded end head 13 and the first attaching copper guide sheet 31.

The using method of the invention comprises the following steps: when the cable terminal and the copper bar connecting piece 51 are installed, firstly, the wire inlet locking part 14 is sleeved outside the cable connector part, then the stripping end is placed into the casing 12 and the cable outer casing 11 to complete screwing installation through thread adaptation, at the moment, the cable skin and the cable core part are both positioned at the position of the middle butt joint embedding end 13 of the stripping end placed into the inner side of the casing 12, then the press-fit positioning concave strip 131 is extruded through a wire pressing pliers to complete press-fit limit on the cable connector part, then the butt joint embedding end 13 and the gradual change curved assembly cavity 22 are mutually inserted and connected, so that the first attaching copper guide sheet 31 and the second attaching copper guide sheet 32 are mutually contacted, electric conduction between the cable connector and the connecting terminal connecting component 2 is realized, after the above operations are completed, the copper bar connecting piece 51 passes through the bottom connection aligning paster 45 and is inserted into the position of the locking sleeve 42, after the retractable lock sleeve 42 is screwed with the copper bar connecting piece 51, the copper bar connecting piece 51 enters the inner side of the through connecting end seat 23 under the action of the screw thread of the retractable lock sleeve 42, at the moment, the bottom connecting alignment patch 45 is contacted with the surface of the copper bar 5, the pressure fitting shrinkage patch 43 is contacted with the surface of the copper bar 5 at the bottom connecting alignment patch 45 and slides to the inner side position of the retractable lock sleeve 42, at the moment, the pressure applying ring 44 between the retractable lock sleeve 42 and the bottom connecting alignment patch 45 is extruded to be in a flat state after the distance between the retractable lock sleeve 42 and the bottom connecting alignment patch 45 is reduced, and further, the contact friction force between the retractable lock sleeve 42 and the bottom connecting alignment patch 45 is increased until the pressing movable limiting part 431 fixedly connected with the pressure applying shrinkage patch 43 slides along the contact position observation cavity 422 to the inner side of the retractable lock sleeve 42 along with the pressure applying shrinkage patch 43, when the position of the stitching movable limiting part 431 is overlapped with the position of the resetting monitoring identification unit 421, namely the bottom of the receiving lock sleeve 42 is fully attached to the bottom connection alignment patch 45, and meanwhile, the stitching of the stitching attaching ring 44 is in place, so that the stitching firmness of the position of the copper bar connecting piece 51 is kept, the contact resistance of the connected cable terminal and the copper bar connecting piece 51 is reduced, when the position of the bottom connection alignment patch 45 and the receiving lock sleeve 42 is judged to be attached or not after installation, an operator observes whether the position of the resetting monitoring identification unit 421 is overlapped with the position of the stitching movable limiting part 431 or not after installation, after the position of the stitching movable limiting part 431 and the position of the resetting monitoring identification unit 421 is overlapped, the contact piece 432 installed on the stitching movable limiting part 431 is contacted with the non-self-locking switch 4211 in the resetting monitoring identification unit 421, so that the non-self-locking switch 4211 in the resetting monitoring identification unit 421 can electrify the lamp bead 4212 due to the fact that the stitching is extruded by the contact piece 432 installed on the movable limiting part 431, whether operating personnel appear lighting through observing lamp pearl 4212, judge whether accomplish income lock sleeve 42 bottom and end and be connected the laminating state of aiming at paster 45 surface, if not lamp pearl 4212 does not light, connect promptly income lock sleeve 42 and end and aim at the paster 45 laminating and can not the position appear connect the phenomenon by mistake, operating personnel can adjust on the spot.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cable terminal connecting device comprises a wire end joint member (1), a connecting terminal joint member (2) and a conducting patch group (3), wherein the wire end joint member (1) consists of a cable outer sleeve joint shell (11) and a stripping end embedding casing (12), the cable outer sleeve joint shell (11) is in threaded connection with the stripping end embedding casing (12), the cable terminal end embedding casing (12) is fixedly connected with a butt joint embedding end (13), the butt joint embedding end (13) is used for inserting the inner side of the connecting terminal joint member (2) for butt joint installation after the cable joint end is embedded into the inner side, the cable outer sleeve joint shell (11) is fixedly connected with a wire inlet locking part (14), the wire inlet locking part (14) is sleeved outside the cable joint end and used for the removal limitation after the cable joint end is embedded into the inner side of the butt joint embedding end (13), a connection terminal butting member (4) is mounted at the bottom end of the connection terminal engagement member (2);

the connection terminal joint component (2) comprises an insulation protection casing (21) and a through connection end seat (23), the insulation protection casing (21) is fixedly connected with the through connection end seat (23), one end of the butt joint embedding end head (13) is clamped and connected to the inner side of the insulation protection casing (21), and a gradual change curved assembly cavity (22) matched with the butt joint embedding end head (13) is formed in the inner side of the insulation protection casing (21);

the connection terminal butt joint component (4) comprises a bottom through contact patch (41), a receiving lock sleeve (42), a pressure fit contraction patch (43), a pressed attachment ring (44) and a bottom connection alignment patch (45), wherein the bottom through contact patch (41) is fixedly connected with the bottom of the insulation protection casing (21) and used for electrically communicating the through connection end seat (23) with the receiving lock sleeve (42), the receiving lock sleeve (42) is fixedly connected with the bottom of the bottom through contact patch (41), the pressure fit contraction patch (43) is in sliding connection with the receiving lock sleeve (42), the pressed attachment ring (44) is sleeved on the outer side of the pressure fit contraction patch (43), the bottom connection alignment patch (45) is fixedly connected with the bottom of the pressure fit contraction patch (43), and when the bottom through contact patch (41) is in threaded connection with the copper bar connecting piece (51), and judging the joint state of the bottom connection alignment patch (45) and the connecting surface of the copper bar (5) according to the contraction degree of the pressure joint contraction patch (43) to the inner side of the retraction lock sleeve (42).

2. A cable termination connection arrangement according to claim 1, characterised in that: switch on paster group (3) including first laminating copper guide (31) and second laminating copper guide (32), first laminating copper guide (31) fixed connection in the inner wall of butt joint embedding end (13), second laminating copper guide (32) fixed connection in insulating protection cover shell (21) inner wall, insulating protection cover shell (21) with after the mutual joint of butt joint embedding end (13), through first laminating copper guide (31) with second laminating copper guide (32) realize the cable terminal with electrical property between link up joint end seat (23) switches on.

3. A cable termination connection device according to claim 1, characterized in that: the surface wall of the retractable lock sleeve (42) is provided with a reset monitoring identification unit (421) used for prompting in-place contact, the retractable lock sleeve (42) is provided with a contact position observation cavity (422), the inner side of the pressure fit shrinkage patch (43) is fixedly connected with a press fit movement limiting part (431) which longitudinally slides along the inner side of the contact position observation cavity (422), and after the press fit movement limiting part (431) is overlapped and aligned with the reset monitoring identification unit (421), the bottom connection alignment patch (45) and the fit between the connecting surfaces of the copper bar (5) are in place.

4. A cable termination connection arrangement according to claim 1, characterised in that: the inner side of the receiving lock sleeve (42) is provided with an internal thread connecting groove (423) which is screwed with the copper bar connecting piece (51), and after the receiving lock sleeve (42) is fixed with the copper bar connecting piece (51) through the internal thread connecting groove (423), the pressed attaching ring (44) is compressed by the extrusion force of the receiving lock sleeve (42) to increase the contact surface and the friction force between the receiving lock sleeve (42) and the bottom connection alignment patch (45).

5. A cable termination connection arrangement according to claim 1, characterised in that: and a pressing and positioning concave strip (131) used for providing an extrusion operation surface when the cables are pressed and limited is embedded in the inner side of the butt joint embedding end head (13).

6. A cable termination connection device according to claim 3, wherein: the reset monitoring identification unit (421) is composed of a non-self-locking switch (4211), a lamp bead (4212) and a buzzer (4213), the non-self-locking switch (4211), the lamp bead (4212) and the buzzer (4213) are all fixedly connected to the outer wall of the retractable lock sleeve (42), and the outer wall of the press-fit movable limiting part (431) is fixedly connected with a connecting sheet (432).

7. A method of using a cable termination connection device according to any one of claims 1 to 6, comprising the steps of:

step S1, firstly, sleeving a wire-in locking part (14) at the outer side of a cable joint, screwing and installing a stripping end into a casing (12) and a cable jacket connecting shell (11), so that the cable skin and the wire core are positioned at the position of a butt joint embedding end (13) in the inner side of the stripping end into the casing (12), at the moment, extruding a press-fit positioning concave strip (131) part through a wire pressing pliers to realize press-fit limit on a cable, and then, mutually inserting the butt joint embedding end (13) and a gradually-changed curved assembly cavity (22) to ensure that a first attaching copper guide sheet (31) and a second attaching copper guide sheet (32) are mutually contacted to complete electric conduction between the cable and a connecting terminal joint member (2);

s2, after the assembly of the wire end joint component (1) and the connection terminal joint component (2) is completed, the copper bar connecting piece (51) penetrates through the bottom connection alignment patch (45) and is inserted into the position of the retraction lock sleeve (42), the copper bar connecting piece (51) is screwed with the thread of the retraction lock sleeve (42) to enter the inner side of the through connection end seat (23), at the moment, the bottom connection alignment patch (45) is in contact with the surface of the copper bar (5), the pressure fit shrinkage patch (43) slides to the inner side position of the retraction lock sleeve (42), meanwhile, the pressed attachment ring (44) is pressed by the retraction lock sleeve (42) and the bottom connection alignment patch (45) after the retraction lock sleeve (42) retracts to the inner side of the pressure fit shrinkage patch (43), the top surface of the pressed attachment ring (44) is in contact with the retraction lock sleeve (42), and the bottom surface of the pressed attachment ring (44) is in contact with the bottom connection alignment patch (45), and then increase the contact friction between the aligning paster (45) is connected with the end to income lock sleeve (42), until after the pressfitting activity restriction department (431) is through contact position observation chamber (422) slip, when being in the state of overlapping with control identification element (421) that resets, income lock sleeve (42) bottom is connected with the end and is aimed at the paster (45) and fully laminated promptly, the attached ring of pressurized (44) pressfitting is in place simultaneously, and then keep the firm crimping nature with copper bar connecting piece (51) contact position, reduce the contact resistance of connecting back cable termination and copper bar contact.