CN214100151U

CN214100151U - Copper core polyvinyl chloride insulation single core cable

Info

Publication number: CN214100151U
Application number: CN202120303132.7U
Authority: CN
Inventors: 赵强; 冉春风; 李强; 夏卫
Original assignee: Jiangsu Tin Cable Special Cable Co Ltd
Current assignee: Jiangsu Tin Cable Special Cable Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-08-31
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a copper core polyvinyl chloride insulation single core cable, which comprises an outer sheath, wherein the inner side wall of the outer sheath is fixedly sleeved with a wrapping belt, the utility model is provided with a sleeve, an external thread groove, a fixed sleeve ring, a sleeve, a telescopic spacing post, a sleeve, a telescopic spring and other devices, a cable joint is connected with the sleeve, the inner thread groove is arranged at the position corresponding to the external thread groove on the sleeve, the inner side wall of the cable joint and the external thread groove on the sleeve are fixedly connected with each other through the matching of the external thread groove and the internal thread groove, the twisting of the cable joint is convenient, when the telescopic spacing post arranged on the fixed sleeve is twisted, because the telescopic spacing post is movably connected with the sleeve through the telescopic spring, and the position corresponding to the telescopic spacing post is provided with a spacing groove on the inner side wall of the cable joint, the telescopic spring provides elasticity for the telescopic spacing post to spring into the spacing groove, the cable connector is completely clamped, and the cable connector is not required to be fixedly connected with a cable through a special pressing tool.

Description

Copper core polyvinyl chloride insulation single core cable

Technical Field

The utility model relates to a single core cable technical field especially relates to an insulating single core cable of copper core polyvinyl chloride.

Background

The single core is only one conductor in an insulating layer, when the voltage exceeds 35kV, most of the cables adopt single core cables, the relationship between the core of each cable and the metal shielding layer can be regarded as the relationship between a coil and an iron core in a primary winding of a transformer, when the core of each single core cable passes through the current, the single core cable has magnetic lines of force which are interlinked with an aluminum packet or the metal shielding layer, so that the two ends of each cable generate induced voltage, and the cables with the voltage grades of 35kV and below all adopt a two-end grounding mode.

At present, the problem that single core cable exists is, the cable joint needs to use special pressfitting machine to carry out the pressfitting to the core and the joint of leading of cable, and this has increased the degree of difficulty of fixed connection between cable and the joint undoubtedly, wastes time and energy, therefore we propose a new copper core polyvinyl chloride insulation single core cable and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a copper core polyvinyl chloride insulation single core cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a copper-core polyvinyl chloride insulating single-core cable comprises an outer sheath, wherein a wrapping tape is fixedly sleeved on the inner side wall of the outer sheath, an outer semiconductor shielding layer is fixedly installed on the inner side wall of the wrapping tape, an insulating layer is fixedly sleeved on the inner side wall of the outer semiconductor shielding layer, an inner semiconductor shielding layer is fixedly connected to the inner side wall of the insulating layer, and a conductor main body is arranged on the inner side of the inner semiconductor shielding layer;

the fixed cover of oversheath lateral wall has connect the sleeve pipe, the fixed lantern ring of sleeve pipe rear side fixedly connected with, two sets of sleeves of the symmetrical fixedly connected with of fixed lantern ring top outer wall and bottom outer wall, it is two sets of the inside two sets of expanding spring that are provided with of sleeve, it is two sets of expanding spring leaves the flexible spacing post of one end fixedly connected with mutually, the fixed cover of sleeve pipe lateral wall has connect cable joint.

As a further description of the above technical solution:

the insulating layer is made of polyvinyl chloride.

As a further description of the above technical solution:

the conductor main body is formed by combining a plurality of copper guide cores.

As a further description of the above technical solution:

the outer sheath is fixedly connected with the fixed lantern ring.

As a further description of the above technical solution:

and the peripheral outer surface of the fixed sleeve ring is provided with an external thread groove at a position corresponding to the cable joint.

As a further description of the above technical solution:

the sleeve inside wall has seted up the sliding tray with flexible spacing post is corresponding.

As a further description of the above technical solution:

the cable joint is characterized in that a limiting groove is formed in the inner side wall of the cable joint and corresponds to the telescopic limiting column, and a connecting hole is formed in one side of the cable joint.

The utility model discloses following beneficial effect has:

compared with the prior art, the cable joint is connected with the sleeve by the devices such as the sleeve, the external thread groove, the fixed lantern ring, the sleeve, the telescopic limiting post, the sleeve, the telescopic spring and the like, the internal thread groove is arranged at the position corresponding to the external thread groove on the sleeve on the inner side wall of the cable joint, the external thread groove and the internal thread groove are matched to be fixedly connected with each other, the cable joint is convenient to screw, when the telescopic limiting post arranged on the fixed lantern ring is screwed, because the telescopic limiting post is movably connected with the sleeve through the telescopic spring, and the inner side wall of the cable joint is provided with the limiting groove corresponding to the telescopic limiting post, the telescopic spring provides elasticity for the telescopic limiting post to eject the telescopic limiting post into the limiting groove, the cable connector is completely clamped, and the cable connector is not required to be fixedly connected with a cable through a special pressing tool.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a copper core polyvinyl chloride insulated single core cable provided by the present invention;

fig. 2 is a side view of a copper core polyvinyl chloride insulated single core cable provided by the present invention;

FIG. 3 is a schematic view of the connection structure between the cable connector, the sleeve and the collar;

fig. 4 is a partially enlarged view of a portion a of fig. 3.

Illustration of the drawings:

1. an outer sheath; 2. a sleeve; 3. wrapping belts; 4. a telescopic limit column; 5. a sleeve; 6. an outer semiconductor shield layer; 7. an inner semiconductor shield layer; 8. a conductor body; 9. an insulating layer; 10. a fixed collar; 11. a cable joint; 12. a tension spring; 13. and connecting the holes.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a copper core polyvinyl chloride insulation single core cable comprises an outer sheath 1, wherein a wrapping tape 3 is fixedly sleeved on the inner side wall of the outer sheath 1, an outer semiconductor shielding layer 6 is fixedly installed on the inner side wall of the wrapping tape 3, an insulating layer 9 is fixedly sleeved on the inner side wall of the outer semiconductor shielding layer 6, an inner semiconductor shielding layer 7 is fixedly connected on the inner side wall of the insulating layer 9, and a conductor main body 8 is arranged on the inner side of the inner semiconductor shielding layer 7; the fixed cover of 1 lateral wall of oversheath has been cup jointed sleeve pipe 2, and the fixed lantern ring 10 of 2 rear sides fixedly connected with of sleeve pipe, the symmetrical two sets of sleeves 5 of fixedly connected with of the outer wall in 10 top outer walls of the fixed lantern ring and the bottom, two sets of 5 inside expanding springs 12 that are provided with of sleeve, two sets of expanding springs 12 leave the flexible spacing post 4 of one end fixedly connected with mutually, and the fixed cable joint 11 that has cup jointed of 2 lateral walls of sleeve pipe.

The insulating layer 9 is made of polyvinyl chloride, the polyethylene is resistant to acid and alkali corrosion, and has good heat resistance, most importantly, the insulating layer has the advantages of good mechanical strength and good insulating property, the conductor main body 8 is formed by combining a plurality of copper conductor cores, the copper conductor main body 8 has lower resistivity, high strength and good extensibility, and also has the advantage of low energy consumption, the outer sheath 1 and the fixed lantern ring 10 are fixedly connected to ensure the fixed connection strength between the fixed lantern ring 10 and the sleeve 2 as well as the outer sheath 1, the outer circumferential outer surface of the fixed lantern ring 10 is provided with an outer thread groove corresponding to the cable joint 11 to facilitate the spacing between the fixed lantern ring 10 and the cable joint 11, the inner side wall of the sleeve 5 is provided with a sliding groove corresponding to the telescopic limiting column 4, the telescopic limiting column 4 is in sliding connection with the sleeve 5 through the sliding groove, and the sliding groove has a limiting effect on the sliding direction of the telescopic limiting column 4, spacing recess has been seted up with the corresponding position of flexible spacing post 4 to the cable joint 11 inside wall, and cable joint 11 one side is inside to be seted up connecting hole 13, is convenient for through spacing recess and the cooperation of flexible spacing post 4 with cable joint 11 and cable looks fixed connection.

The working principle is as follows: first with each layer of inside of this cable through cutting out the excision of sword, expose conductor main part 8, later with cable joint 11 through the outer thread groove on the sleeve pipe 2 with sleeve pipe 2 looks threaded connection, rotate cable joint 11, when cable joint 11 removes the spacing post 4 of flexible on the fixed lantern ring 10, because flexible spacing post 4 passes through expanding spring 12 and sleeve 5 looks swing joint, when spacing recess on cable joint 11 matches with flexible spacing post 4 mutually, flexible spacing post 4 at this moment is in by the spacing recess of bullet under expanding spring 12's effect, make cable joint 11 and this cable looks fixed connection, later sheathe in insulating overcoat can.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an insulating single core cable of copper core polyvinyl chloride, includes oversheath (1), its characterized in that: the inner side wall of the outer sheath (1) is fixedly sleeved with a wrapping tape (3), the inner side wall of the wrapping tape (3) is fixedly provided with an outer semiconductor shielding layer (6), the inner side wall of the outer semiconductor shielding layer (6) is fixedly sleeved with an insulating layer (9), the inner side wall of the insulating layer (9) is fixedly connected with an inner semiconductor shielding layer (7), and the inner side of the inner semiconductor shielding layer (7) is provided with a conductor main body (8);

the fixed cover of oversheath (1) lateral wall has cup jointed sleeve pipe (2), sleeve pipe (2) rear side fixedly connected with fixes lantern ring (10), fixed lantern ring (10) top outer wall and two sets of sleeves (5) of the symmetrical fixedly connected with of bottom outer wall, it is two sets of sleeve (5) inside is provided with two sets of expanding spring (12), and is two sets of expanding spring (12) leave the flexible spacing post (4) of one end fixedly connected with mutually, the fixed cover of sleeve pipe (2) lateral wall has cup jointed cable joint (11).

2. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: the insulating layer (9) is made of polyvinyl chloride.

3. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: the conductor main body (8) is formed by combining a plurality of copper guide cores.

4. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: the outer sheath (1) is fixedly connected with the fixed lantern ring (10).

5. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: and an external thread groove is formed in the position, corresponding to the cable joint (11), of the peripheral side outer surface of the fixed lantern ring (10).

6. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: the inner side wall of the sleeve (5) and the telescopic limiting column (4) are correspondingly provided with sliding grooves.

7. A copper core polyvinyl chloride insulated single core cable according to claim 1, characterized in that: the cable joint (11) inside wall has seted up spacing recess with flexible spacing post (4) corresponding position, and cable joint (11) one side inside has seted up connecting hole (13).