CN2324685Y - Spiral chuck jaw type three-phase electric cable coupling device - Google Patents

Abstract

The utility model relates to a spiral chuck jaw type three-phase electric cable coupling device, which is mainly composed of a combining connecting base, a locking mechanism, a tail cone and fitting attachments. The combining connecting base is provided with three independent connecting supporting bases which can be used as single phase wire connector intermediate bodies. The intermediate main body is a metal conductor which is provided with two or more locking installing holes, and a core can be directly and tightly locked in the locking installing holes by clipping force produced by the actuation of the locking mechanism through spiral thrust. The periphery is sequentially provided with a shielding layer and an insulating layer corresponding to the periphery of the core, connected through the corresponding hierarchy on the tail cone.

Description

Spiral jack catchs type threephase cable jockey

The utility model relates to a kind of cable joint jockey, and particularly a kind of threephase cable connector with spiral clip locking mechanism belongs to the electrical auxiliary service technical field.

In the cable laying construction operation, connection between the cable socket is a quite crucial job, adopt at present usually lap joint pliers pressure method, two velamens are connect that cable termination heart yearn overlaps mutually, clamp in addition pressing with oil pressure behind the sleeve pipe, outside sleeve pipe, wrap up various materials then on request.The conventional method of this two direct joints of lead, operation is loaded down with trivial details during operation, and must be by number people coordinating operations simultaneously, inefficiency not only, labour intensity is also big, and the more difficult grasp of electrotechnical parameter is so exist many weak points.The jointing method of jockey in the middle of having occurred in recent years adopting can singlely be connected on the middle jockey cable socket seriatim, has effectively exempted several people situation of coordinating operations simultaneously, has certain advance.But this class device is because most structure more complicated, and device itself is relatively heavier, and electric property also be cannot say for sure card, thereby really can drop into the few of reality use.

Task of the present utility model be to provide a kind of relatively simple for structure, volume ratio is less, it is reliable to be electrically connected and performance guarantees, technology is simple and easy to connect during field operation, the threephase cable jockey of the protection against the tide of joint area tool, anticorrosion, fire-proof function.

The utility model is achieved in that the wiring requirement corresponding to threephase cable, be provided with one group three independently adapter systems in each root cable connecting arrangement inside, each adapter system is mainly formed by connecting bearing, retaining mechanism and interior cover in principle.The connection bearing mainly plays the intermediate connector effect between the cut cable head, and the main body of intermediate portion is a metallic conductor, is provided with above more than two or two and locks installing hole; This inside that lock hole is installed is stepped, and the inner end is smaller, and near inner end portion place is trapezoidal coniform, and the outer end is slightly thick, is provided with internal thread above; The topped successively several layers of corresponding semiconductive shielding layer of the hierarchical structure with the cable core periphery, main insulating layer, semiconductive shielding layer, the metal screen layer of being provided with in the periphery of bearing intermetallic metal conductor.Retaining mechanism plays to lock simultaneously stube cable heart yearn and intermetallic metal conductor, mainly by all being that metal end cap and claw are formed: the main body of end cap is the covered cylinder shape, cover and be provided with the heart yearn installing hole, cap surface is provided with several assembly technology holes, cylindrical shell is provided with external screw thread, and the interior circle at nearly lid place is trapezoidal coniform in the tube chamber; The intermediate host of claw is circular, the two-way claw that is provided with several close end outsides with trapezoidal inclined-plane.Interior cover main body is cone shape, and the centre is provided with installing hole, is matrix with the insulating cement, and outer periphery is equipped with semiconductive shielding layer and metal screen layer.

During work, heart yearn is set in the interstitial hole of end cap and claw, and stretch place the locking installing hole in, when end cap is tightened inwards, under the squeezing action of claw trapezoidal circular cone in nearly lid place in locking trapezoidal taper seat in installing hole inner end and end cap tube chamber, the claw on outside band inclined-plane, end is deformed, clip lives the core termination, and because the fixation of end cap screw thread and being locked in firmly in the hole, make heart yearn, end cap, claw and intermetallic metal conductor closely contact combination, realize the electric connection of equipotential between conductor.Realize for the contact and connecting by the corresponding level of tail cover and bearing intermetallic metal conductor periphery of the corresponding connection system of semiconductive shielding layer, main insulating layer, semiconductive shielding layer and the metal screen layer of single phase line heart yearn periphery in the cable.

In addition; must exist together simultaneously according to the connection of threephase cable has the special circumstances of three joints; the utility model the connection bearing in three adapter systems set design in one by have certain rigidity and thickness, outer periphery is equipped with in the aluminium cover of insulating protective layer, constitutes one and can assemble the combined isolator that locks three pairs of electric wires simultaneously.By in like manner interior Analysis of Nested Design being become with 120 to spend the coniform of fan-shaped shoulder, after finishing independent wiring fittage, make three fan-shaped shoulders can be combined into the circle shoulder body of one 360 degree, and have the overcoat that certain rigidity and thickness, outer periphery be equipped with the aluminium matter matrix of insulating protective layer with one and cover, this overcoat puts with the aluminium that screw thread (or hasp) connected mode is assemblied in the seat that is connected.

Based on above-mentioned design, threephase cable jockey of the present utility model is because the correspondence of the spiral jack catchs type latch-up structure of the leading electric system of employing and insulation and screen contacts, connected mode, machinery, be electrically connected all very reliable, three connection bearings are gathered on a combined isolator, cover is combined in the overcoat in three, make jockey compact conformation of the present utility model, volume less, during assembling technology simple, relate to parts and specific purpose tool is few, field operation is convenient and save time, laborsaving, thereby have remarkable economical and practicality.

Exemplary embodiments accompanying drawing below in conjunction with " dock " and " T connects formula " threephase cable jockey is described in further detail the utility model.

Fig. 1 is the structural representation of the utility model " dock " threephase cable jockey;

Fig. 2 is the structural representation of combined isolator in the utility model;

Fig. 3 is an end cap structural representation in the retaining mechanism of the present utility model;

Fig. 4 is a claw structure schematic diagram in the retaining mechanism of the present utility model;

Fig. 5 is the structural representation of interior cover in the utility model.

Consult Fig. 1, Fig. 2, " dock " cable connecting arrangement mainly is made up of combined isolator 1, retaining mechanism 2 and tail cover 3 and fitting attachments.The main body of combined isolator 1 is cylindric, its matrix is one to have certain thickness and rigidity, two ends are provided with assembling screw thread 4, outer periphery is equipped with the metallic aluminium cover 6 of insulating sheath 5, be provided with three independently these aluminium cover 6 inner pourings with insulating cement 7, identical in structure, outer periphery is equipped with the connection bearing 9 of conducting bolt seat 8, the intermediate host of this connection bearing 9 is the metallic conductor 11 that bilateral is symmetrically arranged with two locking installing holes 10, be disposed with semiconductive shielding layer 12 in the periphery of this intermetallic metal conductor 11, biend is provided with the main insulating layer 14 of stairstepping fitting surface 13, semiconductive shielding layer 15 and metal screen layer 16, respectively be electrically connected in the periphery, two ends of this metal screen layer 16 and be provided with two with threaded hole 17 conducting bolt seat 8, the cross section of locking installing hole 10 is stepped, the inner end is smaller, and be trapezoidal coniform 19 at the close end place, the outer end is bigger, is provided with internal thread 20 above.

Consult Fig. 3, Fig. 4, locking mechanism 2 is mainly by all being that metal end cap 21 and claw 22 are formed, wherein: end cap 21 main bodys are the covered cylinder shape, cover and be provided with heart yearn location hole 23, cap surface 18 is provided with several assembly technology holes 24, and cylindrical shell is provided with external screw thread 25, justifies in the nearly lid place in the tube chamber to be trapezoidal coniform 26; The intermediate host of claw 22 is circular, above the two-way claw 28 that is provided with band inclined-planes 27, the outside, several ends.

Consult Fig. 1, Fig. 5, tail cover 3 mainly is made up of interior cover 29 and overcoat 30, wherein: it is coniform that interior cover 29 main bodys are band shoulder, and its matrix is to be provided with the fan-shaped shoulder 31 of 120 degree, front end face setting that lead installing hole 34, leading section be provided with two side band installing holes 33 in the middle of one to be the electro-insulating rubber body 38 that assembling is stepped 35, the periphery is disposed with semiconductive shielding layer 36 and metal screen layer 37; Overcoat 30 main bodys are one can admit in three the big conical sleeve of cover 29, its matrix be one have certain thickness and rigidity, above be provided with two glue filling openings 39, a end that diameter is bigger and be provided with the aluminium matter conical sleeve 42 that assembling screw thread 40, outer periphery are equipped with insulating protective layer 41.

Consult Fig. 1, semiconductive packing ring 43, shielding binding ring 44, cable locking ring 45 and bolt 46 are the main fitting attachments in the utility model, wherein semiconductive packing ring 43 is topped in end cover surface 18 down in working order, plays the semiconductive shielding layer 12 that bonding connection is close to the semiconductive shielding layer 50 of heart yearn and is close to intermetallic metal conductor 11; Shielding binding ring 44 is locked on the metal screen layer 48 of single-phase electric wire, works to place restrictions on metal screen layer 48 further diffusion under the wire stripping state; Cable locking ring 45 is locked on the outer field armor layer 49 of three-phase electricity cable, stop three further spread apart effects of phase line except plaing, also under the jockey confined state, closely contact, work to connect armor layer 49 and guarantee the normal ground connection of cable with the aluminium matter matrix 42 of overcoat 30; Bolt 46 is except that plaing the effect of being fixed on the combined isolator 1 of interior cover 29, also rise single-phase electric wire is left over semiconductive shielding layer 47 and metal screen layer 48 concentrated being connected on the conducting bolt seat 8 that come together in shielding binding ring 44 places after the stripping head is handled, make it the effect that is electrically connected with the metal screen layer 16 that is connected bearing 9 peripheries.

During operation, earlier overcoat is placed on the cable socket, after on request cable socket is made wire stripping and handles, cover 29, semiconductive packing ring 43, end cap 21, claw 22 in putting, and with claw 22 stretch place the locking installing hole 10 in, use then specific purpose tool, by 24 turns of assembly technology hole be screwed into end cap 21 to fully locking; On the surface 18 of end cap 21, be coated with conductive adhesive, and be close to first conductive gasket 43, make its with semiconductive shielding layer 12 and heart yearn on 50 mutual bonding connections of semiconductive shielding layer; On the installed surface of stepped end face 35 of interior cover 21 front ends and connection bearing 9, coat dielectric adhesive, and make it fully bonding; Fixed mask binding ring 44 on metal screen layer 48, semiconductive shielding layer 47 under the lead outside peeled off and metal screen layer 48 on interior cover 29, and with bolt 46 with their termination be fixedly connected on connect bearing 9 on the conducting bolt seat 8 that is electrically connected mutually of metal screen layer 15 on.After by the electric wire termination that assembles other two-phase with quadrat method, cable locking ring 45 is locked on the cable armor layer 49; Then overcoat 30 and combined isolator 1 are carried out screw fit and be connected (also can connect) with the assembling of alternate manners such as hasp, and overcoat 30 tail ends and cable junction around on unsintered tape, inject liquid-state silicon gel by the irrigation hole on the overcoat 30 39 at last, after being filled with the inner space fully, sealed or the screw of screwing on.In kind lock another group termination of assembling threephase cable in installing hole 10 in another group of combined isolator 1.

In addition, threephase cable jockey of the present utility model also can be made into " T " and connects form, is applicable to the application scenario that " advancing " two " goes out ".As long as single connection bearing 9 is combined into making improvements property of the requirement design of T-shape combined isolator by A, B, C three-phase, just can realizes.

Claims (13)

1, a kind of spiral jack catchs type threephase cable jockey, mainly form by combined isolator, retaining mechanism, tail cover and fitting attachments, it is characterized in that combined isolator (1) main body is cylindric, its matrix embeddingly has three relatively independent, identical in structure, can supply connection bearing (9) that a phase electric wire be used as joint connection, that peripheral electric contact is provided with conducting bolt seat (8) for being equipped with in an outer periphery in the metallic aluminium cover (6) of insulating protective layer (5) with the insulating cement pouring; Retaining mechanism (2) is by all being that metal end cap (21) and claw (22) are formed; Tail cover (3) is made up of interior cover (29) and overcoat (30); Fitting attachments mainly is made up of semiconductive packing ring (43), shielding binding ring (44), cable locking ring (45) and bolt (46).

2, spiral jack catchs type threephase cable jockey according to claim 1, the intermediate host that it is characterized in that described connection bearing (9) is metallic conductor (11), be provided with two or two above with the stepped locking installing hole (10) of upper section, the periphery is disposed with main insulating layer (14), semiconductive shielding layer (15) and the metal screen layer (16) that is provided with stairstepping fitting surface (13) with the peripheral corresponding semiconductive shielding layer (12) of heart yearn, two ends.

3, according to claim 1,2 described spiral jack catchs type threephase cable jockeys, it is characterized in that the inner end of the locking installing hole (10) that described cross section is stepped is smaller, and close end is trapezoidal coniform (19), the outer end is bigger, is provided with internal thread (20) above.

4, spiral jack catchs type threephase cable jockey according to claim 1, it is characterized in that described end cap 21 main bodys are the covered cylinder shape, cover and be provided with heart yearn installing hole 23, cap surface 18 is provided with several assembly technology holes 24, cylindrical shell is provided with external screw thread 25, justifies in the nearly lid place in the tube chamber to be trapezoidal coniform 26.

5, spiral jack catchs type threephase cable jockey according to claim 1 is characterized in that the intermediate host of described claw (22) is circular, is provided with the claw (28) on several band inclined-planes, outside (27) above.

6, spiral jack catchs type threephase cable jockey according to claim 1, it is coniform to it is characterized in that described interior main body of overlapping (29) is the band shoulder, matrix is a conical rubber bodies (38) in the middle of it, the centre is provided with lead installing hole (34), the fan-shaped shoulder of leading section band (31), front end face are assembling stepped (35), and the periphery is disposed with semiconductive shielding layer (36) and metal screen layer (37).

7, according to claim 1,6 described spiral jack catchs type threephase cable jockeys, it is characterized in that described fan-shaped shoulder (31) is provided with installing hole (33).

8, spiral jack catchs type threephase cable jockey according to claim 1, it is characterized in that described overcoat (30) main body is the big conical sleeve that can admit cover (29) in three, its matrix is one to have the aluminium matter conical sleeve (42) of certain thickness and rigidity, be provided with glue filling opening (39) above, the end that diameter is bigger is provided with assembling screw thread (40), and outer periphery is equipped with insulating sheath (41).

9, spiral jack catchs type threephase cable jockey according to claim 1 is characterized in that being locked on the metal screen layer (48) of phase line when described shielding tightly encircles (44) work.

10, spiral jack catchs type threephase cable jockey according to claim 1, cable locking ring (45) work that it is characterized in that institute's art the time is locked on the armor layer (49) of threephase cable, and the inwall of the aluminium matter matrix (42) of its peripheral and overcoat (30) closely contacts mutually.

11, according to claim 1,2,6 described spiral jack catchs type threephase cable jockeys, fixedly be assemblied on the inner connection bearing (9) of described combined isolator (1) by the installation screwed hole (17) on the conducting bolt seat (8) semiconductive shielding layer (47) and metal screen layer (48) that the peripheral main insulating layer of cover (29) and phase line heart yearn in described is outer when it is characterized in that described bolt (46) work.

12, spiral jack catchs type threephase cable jockey according to claim 1, it is characterized in that the both ends of aluminium cover (6) of overcoat (30) be provided with and be convenient to the screw thread (4) or the buckle class formation that fix and be linked and packed with overcoat (30).

13, according to claim 1,4 described spiral jack catchs type threephase cable jockeys, it is characterized in that described semiconductive packing ring (43) work the time is close on the surface (18) of described end cap (21), and be electrically connected mutually with the semiconductive shielding layer of being close to heart yearn (50) and the semiconductive shielding layer (12) of being close to the intermetallic metal conductor.

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