CN210607661U - 10KV cable welding intermediate joint - Google Patents

Abstract

The utility model discloses a 10KV cable welding intermediate head, which comprises a cable body, wherein a conductor is arranged in an inner wrapping mode of the cable body, a copper shield is wrapped on the outer wall of the conductor, an inner protective sleeve is wrapped on the outer wall of the copper shield, an outer protective sleeve is wrapped on the outer wall of the inner protective sleeve, a connecting sleeve is sleeved at one end of the conductor, a fixing retainer ring is sleeved at two inner ends of the connecting sleeve, two groups of fastening bolts on the connecting sleeve are screwed to enable the bottom ends of the fastening bolts to extrude the fixing retainer ring, so that two ends of the fixing retainer ring are contracted inwards to fixedly connect two ends of the conductor, the traditional confining pressure type or bracket wrapping type is avoided, the connection is not firm, the fixing retainer ring arranged at the same time can be replaced to adapt to cables with conductors of different diameters, the internal heat-shrinkable intermediate head arranged at two ends of the, the gap between the conductor and the sleeve of the intermediate joint is avoided in the traditional intermediate joint mode.

Description

10KV cable welding intermediate joint

Technical Field

The utility model belongs to the technical field of the cable intermediate head, concretely relates to 10KV cable butt fusion intermediate head.

Background

The cable mainly comprises the following 4 parts, 1, a conductive wire core: made of a high conductivity material (copper or aluminum). According to the requirements of laying use conditions on the flexibility degree of the cable, each wire core can be formed by twisting a single wire or a plurality of wires, and 2, an insulating layer: the insulating material used for the cable should have high insulation resistance, high breakdown field strength, low dielectric loss and low dielectric constant, the insulating materials commonly used in the cable are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc., the cable is often classified by the insulating materials, such as oil-impregnated paper-insulated cable, polyvinyl chloride cable, cross-linked polyethylene cable, etc., 3, sealing sheath: protecting the insulated wire core from damage by mechanical, moisture, humidity, chemicals, light, etc., for moisture-sensitive insulation, a lead or aluminum extrusion sealing sheath is generally used, 4, a protective covering layer: the cable is used for protecting a sealing sheath from mechanical damage, a galvanized steel strip, a steel wire or a copper strip, a copper wire and the like are generally adopted as armor to wrap the sheath (called an armored cable), an armor layer simultaneously plays a role in electric field shielding and preventing external electromagnetic wave interference, in order to avoid corrosion of surrounding media to the steel strip and the steel wire, asphalt is generally coated or a jute layer is wrapped or a polyethylene and polyvinyl chloride sleeve is extruded outside the steel strip and the steel wire, most of the existing cables are subjected to confining pressure during intermediate butt joint, the installation is complicated, and gaps are easily left between two ends of an intermediate joint and a conductor, so that the sealing is not tight or a good waterproof effect cannot be achieved, and therefore the prior art needs to be improved to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 10KV cable butt fusion intermediate head to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 10KV cable butt fusion intermediate head, including the cable body, the inside parcel formula of cable body is provided with the conductor, the outer wall parcel of conductor is provided with the copper shielding, the outer wall parcel of copper shielding is provided with interior protective sheath, the outer wall parcel of interior protective sheath is provided with outer protective sheath, the pot head of conductor is equipped with connecting sleeve, connecting sleeve's inside both ends cover is equipped with fixed rand, connecting sleeve's inside and the fixed metal conducting block that is provided with in the centre that is located two sets of fixed rands, the fixed screw hole that is provided with in connecting sleeve's top both sides, there is fastening bolt through threaded connection in the screw hole on the connecting sleeve, fastening bolt runs through the screw hole and extends to connecting sleeve's inside and contacts with fixed rand, two sets of scale grooves have been seted up to connecting sleeve's bottom outer wall, the.

Further, the cable body is provided with two sets.

Further, two sets of fixed rands are by the component of taking elastic metal material to make, and two sets of fixed rand one end are disconnected formula structure, and one end stack on the other end, and thickness is greater than the thickness of both ends disconnection department in the middle of two sets of fixed rands, makes the both ends of fixed rand be rich in elasticity, can be with the fastening more of conductor parcel.

Furthermore, two sets of scale groove positions set up in the both sides that are located metal conducting block, when carrying out the girdling to the copper shielding, aim at the scale groove with the one end of cable body to do the mark on the copper shielding and carry out the girdling, can guarantee that the one end of cutting back conductor can contact the inside metal conducting block of connecting sleeve.

Furthermore, two sets of fastening bolts are arranged to be bolts with inner hexagon nuts, so that the outer wall of the connecting sleeve is smooth, and the outer thermal shrinkage intermediate joint is conveniently wrapped.

Furthermore, the connecting part of the outer protective sleeve and the inner protective sleeve, the connecting part of the inner protective sleeve and the copper shield and the connecting part of the copper shield and the conductor are provided with steps, so that an outer heat-shrinkable intermediate joint and an inner heat-shrinkable intermediate joint are conveniently sleeved.

Furthermore, the two ends of the outer heat-shrinkable intermediate joint wrap the outer wall of the inner protective sleeve, and the two ends of the inner heat-shrinkable intermediate joint wrap the outer wall of the copper shield, so that a gap between the conductor and the sleeve of the intermediate joint caused by a traditional intermediate joint mode is avoided.

Compared with the prior art, the beneficial effects of the utility model are that: this a 10KV cable butt fusion intermediate head, its inside cover that sets up is equipped with two sets of fixed rand of being made by elastic metal material in addition, when the inside conductor of cable body inserts fixed rand inside, through twisting two sets of fastening bolt on the adapter sleeve soon, make fastening bolt's bottom extrusion fixed rand, thereby make the both ends of fixed rand shrink inwards, live conductor both ends fixed connection, traditional formula or support parcel formula of enclosing has been avoided, lead to the insecure connection, the fixed rand that sets up simultaneously can also be through changing, with the cable of the different diameter conductors of adaptation, the internal heat that sets up at the adapter sleeve both ends contracts the intermediate head, wrap up the copper shield, traditional intermediate head mode has been avoided, lead to leaving the clearance between the sleeve of conductor and intermediate head.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall view of the present invention;

fig. 2 is a left side view of the connecting sleeve of the present invention.

In the figure: 1. an outer protective sheath; 2. a conductor; 3. an inner protective sheath; 4. shielding copper; 5. fastening a bolt; 6. A connecting sleeve; 7. a threaded hole; 8. an inner heat-shrinkable intermediate joint; 9. a metal conductive block; 10. a scale groove; 11. a fixed collar; 12. an outer heat-shrinkable intermediate joint; 13. a cable body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a10 KV cable fusion intermediate joint comprises a cable body 13, a conductor 2 is arranged in the cable body 13 in a wrapping mode, a copper shield 4 is arranged on the outer wall of the conductor 2 in a wrapping mode, an inner protective sleeve 3 is arranged on the outer wall of the copper shield 4 in a wrapping mode, an outer protective sleeve 1 is arranged on the outer wall of the inner protective sleeve 3 in a wrapping mode, a connecting sleeve 6 is sleeved at one end of the conductor 2, fixing clamping rings 11 are sleeved at two ends of the inner portion of the connecting sleeve 6, a metal conductive block 9 is fixedly arranged in the connecting sleeve 6 and located in the middle of the two groups of fixing clamping rings 11, threaded holes 7 are fixedly arranged on two sides of the top end of the connecting sleeve 6, fastening bolts 5 are connected in the threaded holes 7 in the connecting sleeve 6 through threads, the fastening bolts 5 penetrate through the threaded holes 7 and extend to the inner portion of, the two ends of the connecting sleeve 6 are fixedly provided with inner heat-shrinkable intermediate joints 8, and the outer wall of the connecting sleeve 6 is wrapped with outer heat-shrinkable intermediate joints 12.

As shown in fig. 1, the cable body 13 is provided with two sets.

As shown in fig. 2, two sets of fixing collars 11 are members made of elastic metal materials, one end of each of the two sets of fixing collars 11 is of a disconnected structure, and one end of each of the two sets of fixing collars 11 is superposed on the other end of each of the two sets of fixing collars, and the thickness of the middle of each of the two sets of fixing collars 11 is greater than that of the disconnected parts at the two ends of each of the two sets of fixing collars, so that the two ends of each of the fixing collars 11 are.

As shown in fig. 1, two sets of scale grooves 10 are disposed on two sides of the metal conductive block 9, when the copper shield 4 is subjected to circular cutting, one end of the cable body 13 is aligned with the scale grooves 10, and marks are made on the copper shield 4 for circular cutting, so that one end of the cut conductor 2 can be ensured to contact the metal conductive block 9 inside the connecting sleeve 6.

As shown in fig. 1, the two sets of fastening bolts 5 are provided as bolts with hexagon socket head cap nuts, so that the outer wall of the connecting sleeve 6 is flat, thereby facilitating the wrapping of the outer heat-shrinkable intermediate joint 12.

As shown in fig. 1, steps are provided at the joint of the outer protective sleeve 1 and the inner protective sleeve 3, the joint of the inner protective sleeve 3 and the copper shield 4, and the joint of the copper shield 4 and the conductor 2, so as to conveniently sleeve the outer thermal contraction intermediate joint 12 and the inner thermal contraction intermediate joint 8.

As shown in fig. 1, two ends of the outer heat-shrinkable intermediate joint 12 are wrapped on the outer wall of the inner protective sleeve 3, and two ends of the inner heat-shrinkable intermediate joint 8 are wrapped on the outer wall of the copper shield 4, so that a gap between the conductor 2 and the sleeve of the intermediate joint caused by a traditional intermediate joint mode is avoided.

The utility model discloses a theory of operation and use flow: when the 10KV cable fusion-splicing intermediate joint is used, the outer protective sleeve 1, the inner protective sleeve 2 and the copper shield 4 are sequentially cut off in an annular mode according to installation specifications of two cable bodies 13 according to actual needs, attention is paid to the fact that when the copper shield 4 is subjected to annular cutting, one ends of the two cable bodies 13 are aligned to the scale groove 10, marks are marked on the copper shield 4 for annular cutting, it can be guaranteed that one end of the cut conductor 2 can contact the metal conducting block 9 inside the connecting sleeve 6, the exposed part of the conductor 2 is inserted into the connecting sleeve 6 after the annular cutting is completed, end faces of the two conductors 2 are in contact with the metal conducting block 9, after the insertion, the fastening bolt 5 is screwed through a wrench, the bottom end of the fastening bolt 5 extrudes the fixing clamping ring 11, so that two ends of the fixing clamping ring 11 are inwardly contracted, two ends of the conductor 2 are fixedly connected, and the traditional confining pressure type or support wrapping type is avoided, lead to connecting insecure, the fixed rand 1 that sets up simultaneously can also be through changing to adapt to the cable of different diameter conductors 2, fixed completion back, through the interior heat shrink intermediate head 8 at external equipment heating connecting sleeve 6 both ends, wrap up the clearance of the installation between copper shield 4 and the connecting sleeve 6, then with outer heat shrink intermediate head 12 through external equipment heating can.

It should be noted that, in this document, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a 10KV cable fusion intermediate head, includes cable body (13), its characterized in that: the cable comprises a cable body (13), wherein a conductor (2) is arranged in an internal wrapping mode of the cable body (13), a copper shield (4) is arranged in an external wrapping mode of the conductor (2), an internal protective sleeve (3) is arranged in an external wrapping mode of the copper shield (4), an external protective sleeve (1) is arranged in an external wrapping mode of the internal protective sleeve (3), a connecting sleeve (6) is sleeved at one end of the conductor (2), fixing clamping rings (11) are sleeved at two ends of the inside of the connecting sleeve (6), metal conductive blocks (9) are fixedly arranged in the inside of the connecting sleeve (6) and positioned in the middle of the two groups of fixing clamping rings (11), threaded holes (7) are fixedly formed in two sides of the top end of the connecting sleeve (6), fastening bolts (5) are connected with the threaded holes (7) in the threaded holes (7) on the connecting sleeve (6) through threads, the fastening bolts (5) penetrate through the threaded holes, two groups of scale grooves (10) are formed in the outer wall of the bottom of the connecting sleeve (6), inner thermal shrinkage intermediate joints (8) are fixedly arranged at two ends of the connecting sleeve (6), and outer thermal shrinkage intermediate joints (12) are arranged in a wrapping mode on the outer wall of the connecting sleeve (6).

2. The fused intermediate joint for 10KV cables of claim 1, wherein: the cable body (13) is provided with two groups.

3. The fused intermediate joint for 10KV cables of claim 1, wherein: two sets of fixed rand (11) are by the component of taking elastic metal material to make, two sets of fixed rand (11) one end is disconnected formula structure, and one end stack is on the other end, and two sets of fixed rand (11) middle thickness is greater than the thickness of both ends disconnection department.

4. The fused intermediate joint for 10KV cables of claim 1, wherein: the two groups of scale grooves (10) are arranged on two sides of the metal conductive block (9).

5. The fused intermediate joint for 10KV cables of claim 1, wherein: and the two groups of fastening bolts (5) are bolts with inner hexagon nuts.

6. The fused intermediate joint for 10KV cables of claim 1, wherein: the outer protective sleeve (1) and the inner protective sleeve (3) are connected, the inner protective sleeve (3) and the copper shield (4) are connected, and the copper shield (4) and the conductor (2) are connected through steps.

7. The fused intermediate joint for 10KV cables of claim 1, wherein: the two ends of the outer thermal shrinkage intermediate joint (12) are wrapped on the outer wall of the inner protective sleeve (3), and the two ends of the inner thermal shrinkage intermediate joint (8) are wrapped on the outer wall of the copper shield (4).

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