CN211957203U

CN211957203U - Based on cold-resistant rubber sleeve cable of ultra-low temperature

Info

Publication number: CN211957203U
Application number: CN202020818452.1U
Authority: CN
Inventors: 钱新伟
Original assignee: Jiangsu Ancheng Cable Co ltd
Current assignee: Jiangsu Ancheng Cable Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-11-17
Anticipated expiration: 2030-05-18

Abstract

The utility model provides a cold-resistant rubber sleeve cable based on ultra-low temperature, which relates to the technical field of cables and aims to solve the problems that the insulation material of the cable naturally cracks under the condition of bending when the ambient temperature of the existing cable is lower, particularly when the temperature reaches about 50 ℃ below zero, the existing FEP thick insulation layer needs to be extruded and molded once during manufacturing, and the cracking is more likely to occur due to thicker extruded insulation and low temperature, and comprises an outer sheath; an insulating sleeve is sleeved in the outer sheath. The utility model discloses in evenly be provided with the thermal-arrest ball that the diameter is greater than constant temperature heat conduction line diameter because the interval on the constant temperature heat conduction line, the interval distance between its thermal-arrest ball is unanimous with the radius of insulating cover, can provide constant temperature for the cable and heat up to can provide the interval heat accumulation through the thermal-arrest ball, so that the cable can adapt to low temperature environment, improve the cold-resistant characteristic of cable.

Description

Based on cold-resistant rubber sleeve cable of ultra-low temperature

Technical Field

The utility model relates to the technical field of cables, more specifically say, in particular to cold-resistant rubber sleeve cable based on ultra-low temperature.

Background

Cables, typically rope-like cables, are formed by stranding several or several groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating.

The cold-resistant rubber sleeve cable of ultra-low temperature as in patent application CN201920617894.7 is many as current cable, including sinle silk, oversheath, the sinle silk includes inner sheath, enhancement core, wire, the inside of first passageway is located through insulating filler to the enhancement core, the fixed inside that sets up at the second passageway of wire, the annular heat preservation has transversely been seted up at the inner wall middle part of oversheath, the heat preservation inner wall is equipped with constant temperature heat conduction piece through seting up the thing passageway of putting, be equipped with the arc heat exchanger fin between inside two adjacent constant temperature heat conduction pieces of heat preservation, the fixed metal armor that is provided with between oversheath and the sinle silk, the surface of the inside sinle silk of metal armor is equipped with second fibre filling layer. The utility model discloses the heat that the wire produced because of hindering the consumption during use is led to the heat dissipation intracavity through second fibre filling layer to transmit to constant temperature conducting block surface through the heat conductor, the heat on constant temperature conducting block surface is evenly scattered to the heat preservation in situ under the fin effect, with the whole transmission of electricity performance of the inside wire of sinle silk when reinforcing cable uses.

The insulation material of the existing cable naturally cracks under the condition of bending under the condition of low ambient temperature, particularly under the condition that the temperature reaches minus 50 or so, while the existing FEP thick insulation layer needs to be extruded and molded once during manufacturing, and the insulation is thicker and cracks are more easily generated at low temperature due to extrusion.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and an ultra-low temperature cold-resistant rubber sleeve-based cable is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cold-resistant rubber sleeve cable based on ultra-low temperature to solve current cable under the lower condition of ambient temperature, especially when the temperature reaches under the environment of 50 left and right sides under zero, the insulating material of cable is the nature fracture under the condition that takes place to bend, and current FEP thick insulating layer need once extrusion moulding in the time of the manufacturing, because of extruding the problem that insulating thick and low temperature take place the fracture more easily.

The utility model discloses purpose and efficiency based on cold-resistant rubber sleeve cable of ultra-low temperature are reached by following concrete technical means:

an ultralow temperature cold-resistant rubber sleeve-based cable comprises an outer sheath; an insulating sleeve is sleeved in the outer protective sleeve; three tangent inner sheaths are annularly arranged in the inner cavity of the insulating sheath; supporting blocks are filled in the insulating sleeves among the three inner sheaths; the inner sheath is filled with a fiber filling layer, and a sleeve is arranged in the middle of the fiber filling layer; the sleeve is internally sleeved with the spirally twisted wire core; the middle part of supporting shoe embeds there is constant temperature heat conduction line, and its constant temperature heat conduction line's both ends are connected with outside heating equipment electrical property respectively.

Furthermore, the insulating sleeve comprises a polytetrafluoroethylene tape wrapping, and the polytetrafluoroethylene tape wrapping is crossly wound on the outer wall of the insulating sleeve.

Furthermore, the constant-temperature heat conducting wire comprises heat collecting balls, the heat collecting balls with the diameter larger than that of the constant-temperature heat conducting wire are evenly arranged on the constant-temperature heat conducting wire at intervals, and the interval distance between the heat collecting balls is consistent with the radius of the insulating sleeve.

Further, the inner wall of the outer sheath is formed by armor woven by stainless steel metal.

Furthermore, the supporting blocks are formed by fan-shaped columnar structures, the outer walls of the supporting blocks are perfectly tangent to the inner wall of the insulating sleeve, the two cambered surfaces of each supporting block are respectively tangent to the outer wall of the inner sheath on the corresponding side, a gap area is formed between every two adjacent supporting blocks, and the supporting blocks can be filled with foam foaming agents.

Further, the fiber filling layer is of a one-time extrusion structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

because the heat collection balls with the diameters larger than the diameters of the constant-temperature heat conduction lines are uniformly arranged on the constant-temperature heat conduction lines at intervals, the spacing distance between the heat collection balls is consistent with the radius of the insulating sleeve, constant-temperature heating can be provided for the cable, and interval heat storage can be provided through the heat collection balls, so that the cable can adapt to a low-temperature environment, and the cold resistance of the cable is improved.

Because the supporting shoe constitutes for fan-shaped columnar structure, the outer wall of its supporting shoe is tangent with the inner wall of insulating sheath is perfect, and two cambered surfaces of supporting shoe are tangent with the outer wall that corresponds the inner sheath of one side respectively, and be the space region between two adjacent supporting shoes, can fill foam foaming agent, can provide the skeleton support for cable inside, simultaneously, can provide the cushion effect through the clearance again, damage inside structure when avoiding receiving external impact.

As the polytetrafluoroethylene tape is wound on the outer wall of the insulating sleeve in a crossed manner, the insulating sleeve has stronger self-adaptive capacity, and the problem that the insulating sleeve cracks when bent or under the low-temperature condition is avoided.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the cable axial structure of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

Fig. 3 is an axial view structure diagram of the outer sheath removed state of the present invention.

Fig. 4 is a schematic view of the supporting block and the constant temperature heat-conducting block of the present invention.

Fig. 5 is a schematic view of the structure of the constant temperature heat-conducting block of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. an outer sheath; 2. an insulating sleeve; 201. wrapping the polytetrafluoroethylene tape; 3. an inner sheath; 4. a fiber-filled layer; 5. a wire core; 6. a sleeve; 7. a support block; 8. a constant temperature heat conducting wire; 801. a heat collecting ball.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a cold-resistant rubber sleeve cable based on ultra-low temperature, which comprises an outer sheath 1; the outer sheath 1 is internally wrapped with an insulating sleeve 2; three tangent inner sheaths 3 are annularly arranged in the inner cavity of the insulating sheath 2; supporting blocks 7 are filled in the insulating sleeves 2 among the three inner sheaths 3; the inner sheath 3 is filled with a fiber filling layer 4, and a sleeve 6 is arranged in the middle of the fiber filling layer 4; the sleeve 6 is sleeved with the wire core 5 which is twisted spirally; the middle part of supporting shoe 7 embeds there is constant temperature heat conduction line 8, and its constant temperature heat conduction line 8's both ends are connected with outside heating equipment electrical property respectively.

Wherein, insulating cover 2 includes the tetrafluoro area around package 201, and the alternately winding has the tetrafluoro area to wind package 201 on insulating cover 2's the outer wall for insulating cover 2 has stronger self-adaptability, avoids insulating cover 2 to take place the problem of fracture when buckling or under the low temperature condition.

Wherein, the constant temperature heat conduction line 8 is including heat collection ball 801, and the interval evenly is provided with the thermal-arrest ball 801 that the diameter is greater than the 8 diameters of constant temperature heat conduction line on the constant temperature heat conduction line 8, and the interval distance between its thermal-arrest ball 801 is unanimous with the radius of insulating cover 2, can provide the constant temperature for the cable and heat up to can provide the interval heat accumulation through heat collection ball 801, so that the cable can adapt to low temperature environment, improves the cold-resistant characteristic of cable.

Wherein, the inner wall of the outer sheath 1 is formed by armor woven by stainless steel metal, and the wear resistance of the outer sheath 1 can be ensured.

Wherein, supporting shoe 7 constitutes for sectorial columnar structure, and the outer wall of its supporting shoe 7 is tangent with the inner wall of insulating bush 2 is perfect, and two cambered surfaces of supporting shoe 7 are tangent with the outer wall that corresponds inner sheath 3 of one side respectively, and be the space region between two adjacent supporting shoes 7, can fill foam foaming agent, can provide the skeleton support for cable inside, simultaneously, can provide the cushion effect through the clearance again, damage inside structure when avoiding receiving external shock.

The fiber filling layer 4 is of a one-time extrusion structure, so that good insulation performance can be guaranteed.

The specific use mode and function of the embodiment are as follows:

when the heat-insulating cable is used, the heat-collecting balls 801 with the diameters larger than that of the constant-temperature heat-conducting wires 8 are uniformly arranged on the constant-temperature heat-conducting wires 8 at intervals, the interval distance between the heat-collecting balls 801 is consistent with the radius of the insulating sleeve 2, constant-temperature heating can be provided for the cable, and interval heat storage can be provided through the heat-collecting balls 801, so that the cable can adapt to a low-temperature environment, and the cold resistance of the cable is improved;

the supporting blocks 7 are of fan-shaped columnar structures, the outer walls of the supporting blocks 7 are perfectly tangent to the inner wall of the insulating sleeve 2, the two arc surfaces of each supporting block 7 are respectively tangent to the outer wall of the inner sheath 3 on the corresponding side, a gap area is formed between every two adjacent supporting blocks 7, a foam foaming agent can be filled, framework support can be provided for the interior of the cable, meanwhile, a buffer force can be provided through gaps, the internal structure is prevented from being damaged when external impact is applied, and in addition, the fiber filling layer 4 is of a one-time extrusion structure, so that good insulating performance can be guaranteed;

still, the outer wall of insulating cover 2 is gone up alternately the winding and is had the tetrafluoro area around package 201 for insulating cover 2 has stronger self-adaptation ability, avoids insulating cover 2 when buckling or the problem that the low temperature condition took place the fracture down.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a based on cold-resistant rubber sleeve cable of ultra-low temperature which characterized in that: comprising an outer sheath (1); the outer sheath (1) is internally sheathed with an insulating sleeve (2); three tangent inner sheaths (3) are annularly arranged in the inner cavity of the insulating sheath (2); supporting blocks (7) are filled in the insulating sleeves (2) among the three inner sheaths (3); the inner sheath (3) is filled with a fiber filling layer (4), and a sleeve (6) is arranged in the middle of the fiber filling layer (4); the sleeve (6) is internally sleeved with a wire core (5) which is twisted spirally; the middle part of the supporting block (7) is internally provided with a constant temperature heat conducting wire (8), and two ends of the constant temperature heat conducting wire (8) are respectively electrically connected with external heating equipment.

2. The ultra-low temperature cold-resistant rubber sleeve-based cable as claimed in claim 1, wherein: insulating cover (2) are including the tetrafluoro area around package (201), alternately the winding has the tetrafluoro area to wind on the outer wall of insulating cover (2) around package (201).

3. The ultra-low temperature cold-resistant rubber sleeve-based cable as claimed in claim 1, wherein: the constant-temperature heat conducting wire (8) comprises heat collecting balls (801), the heat collecting balls (801) with the diameters larger than the diameters of the constant-temperature heat conducting wires (8) are evenly arranged on the constant-temperature heat conducting wire (8) at intervals, and the interval distance between the heat collecting balls (801) is consistent with the radius of the insulating sleeve (2).

4. The ultra-low temperature cold-resistant rubber sleeve-based cable as claimed in claim 1, wherein: the inner wall of the outer sheath (1) is formed by armor woven by stainless steel metal.

5. The ultra-low temperature cold-resistant rubber sleeve-based cable as claimed in claim 1, wherein: the supporting blocks (7) are of fan-shaped columnar structures, the outer walls of the supporting blocks (7) are perfectly tangent to the inner wall of the insulating sleeve (2), the two cambered surfaces of the supporting blocks (7) are respectively tangent to the outer wall of the inner sheath (3) on the corresponding side, a gap area is formed between every two adjacent supporting blocks (7), and the foaming agent can be filled in the gap area.

6. The ultra-low temperature cold-resistant rubber sleeve-based cable as claimed in claim 1, wherein: the fiber filling layer (4) is of a one-time extrusion structure.