CN214588122U - Anti-compression and anti-stretching power cable - Google Patents

Abstract

The utility model relates to the technical field of cables, in particular to a compression-resistant and stretch-resistant power cable, which aims to solve the problems of the prior cable that the tensile and compression-resistant effect is not obvious and the service life is short, and comprises a plurality of cable cores, an isolation layer is arranged outside the cable cores, an armor layer is arranged on one side of the isolation layer opposite to the cable cores, and a sheath is arranged on one side of the armor layer opposite to the isolation layer; the sheath includes the first outer jacket that is close to the armor, keeps away from the second outer jacket of armor and is located the elastic layer between the two, and the elastic layer comprises a plurality of supporting element, and the supporting element is including the bracing piece that connects mutually in order, and the head and the tail portion of bracing piece is equipped with crest end and trough end, crest end all with the outer jacket fixed connection of second, trough end all with first outer jacket fixed connection. The utility model discloses make power cable when the atress, the power can be along the transmission of the direction that sets up of bracing piece 4 to whole support element produces elastic deformation, plays the effect of energy dissipation buffering, has outstanding compressive capacity and stretch-proofing ability.

Description

Anti-compression and anti-stretching power cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to resistance to compression stretch-proofing power cable.

Background

The cable is generally a rope-like cable formed by twisting several or several groups of wires, each group of wires is insulated with each other and usually twisted around a center, the whole cable is covered with a high-insulation covering layer, the cable has the characteristics of internal electrification and external insulation, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like, and the cables are all composed of single-strand or multi-strand wires and an insulation layer and are used for connecting circuits, electrical appliances and the like.

When the cable was laid, the staff all used very big strength pulling cable to the cable is buried underground, can receive the very heavy pressure on ground, causes the damage to the cable core very easily, and there is the problem that tensile resistance to compression effect is not obvious, life is short in the current cable.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a resistance to compression stretch-proofing power cable solves current cable and has the not obvious effect of tensile resistance to compression effect, problem that life is short.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the compression-resistant stretch-resistant power cable comprises a plurality of cable cores, wherein an isolation layer is arranged outside each cable core, an armor layer is arranged on one side, opposite to the cable cores, of each isolation layer, and a sheath is arranged on one side, opposite to the isolation layer, of each armor layer;

the sheath includes the first outer jacket that is close to the armor, keeps away from the second outer jacket of armor and is located the elastic layer between the two, the elastic layer comprises a plurality of supporting element, the supporting element is including the bracing piece that connects mutually in order, the head and the tail portion of bracing piece is equipped with crest end and trough end, crest end all with the outer jacket fixed connection of second, trough end all with first outer jacket fixed connection.

Optionally, a reinforcing ring is arranged at a joint of the wave crest end and the second outer protective layer and a joint of the wave trough end and the first outer protective layer.

Optionally, the first outer protective layer and the second outer protective layer are ceramic silicon rubber layers.

Optionally, a filling layer located in the isolation layer is arranged in a gap of the cable core, and the filling layer is a glass fiber cotton layer.

Optionally, the cable core includes a conductor, a conductor shield, a cross-linked polyethylene insulating layer, an insulation shield, and a metal shield, which are sequentially disposed from inside to outside.

The utility model has the advantages that:

1. the utility model discloses an anti-compression and anti-stretching power cable, make power cable when the atress, the strength can be along the transmission of the direction that sets up of bracing piece, thereby whole support unit produces elastic deformation, play the effect of energy dissipation buffering, outstanding compressive capacity and anti-stretching ability have, simultaneously because there is the crest trough stress point that the bracing piece found out at power cable's tow sides all, and distribute evenly, so even the direction of stress of cable is not single, the atress is inhomogeneous, can both satisfy the high strength, the pressure-bearing is strong, the performance requirement of shock-resistant.

2. The utility model discloses a resistance to compression stretch-proofing power cable adds the setting of retainer ring for the strong pull force and the pressure of strong enough bearing can be born to the strong point, further avoids power cable to damage, effectively prolongs its life.

3. The utility model discloses a resistance to compression stretch-proofing power cable, first outer jacket, the outer sheath of second are ceramic silicon rubber layer, can not only assist the compressive capacity and the stretch-proofing ability of elastic layer in order to improve power cable, have characteristics such as wear-resisting, fire-resistant moreover.

4. The utility model discloses a resistance to compression stretch-proofing power cable is equipped with in the space of cable core and is located the intraformational filling layer of isolation, the cotton layer of filling layer glass fiber, and its material has the effect of good heat-resisting and buffering energy dissipation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a compression-resistant and stretch-resistant power cable according to an embodiment of the present invention;

fig. 2 is a schematic view of an exploded structure of an embodiment of the compression-resistant and stretch-resistant power cable after a sheath plane is unfolded;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Description of reference numerals:

1. a cable core; 11. a conductor; 12. a conductor shield; 13. a crosslinked polyethylene insulating layer; 14. insulating shielding; 15. metal shielding; 2. an isolation layer; 3. an armor layer; 4. a sheath; 41. a first outer jacket layer; 42. a second outer protective layer; 43. an elastic layer; 431. a support bar; 432. a peak end; 433. a trough end; 434. reinforcing rings; 5. and (5) filling the layer.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The utility model provides a tensile power cable of resistance to compression, as shown in fig. 1, fig. 2 and fig. 3, including a plurality of cable cores 1, 1 outside cladding of cable core has isolation layer 2, 1 one side cladding of the relative cable core of isolation layer 2 has armor 3, 2 one side cladding of the relative isolation layer of armor 3 has sheath 4, concretely, sheath 4 is including the first outer jacket 41 that is close to armor 3, keep away from the second outer jacket 42 of armor 3 and be located elastic layer 43 between the two, this elastic layer 43 comprises a plurality of supporting element, supporting element is including the bracing piece 431 that connects mutually in order, the head and the tail of bracing piece 431 is provided with crest end 432 and trough end 433, wherein crest end 432 all with second outer jacket 42 fixed connection, trough end 433 all with first outer jacket 41 fixed connection. This structure makes power cable when the atress, and the power can be along bracing piece 431 set up the direction transmission to whole supporting element produces elastic deformation, plays the effect of energy dissipation buffering, has outstanding compressive capacity and stretch-proofing ability. Because the wave crest and the wave trough stress points constructed by the support rods 431 are arranged on the front side and the back side of the power cable and are uniformly distributed, even if the stress direction of the cable is not single and the stress is not uniform, the performance requirements of high strength, strong bearing force and impact resistance can be met.

As shown in fig. 2 and fig. 3, the joint between the peak end 432 and the second outer sheath 42 and the joint between the trough end 433 and the first outer sheath 41 are provided with reinforcing rings 434, so that the supporting point can bear larger pulling force and pressure, the power cable is further prevented from being damaged, and the service life of the power cable is effectively prolonged.

As shown in fig. 1, the first outer sheath 41 and the second outer sheath 42 are ceramic silicon rubber layers, which not only can assist the elastic layer 43 to improve the compression resistance and tensile resistance of the power cable, but also have the characteristics of wear resistance, fire resistance, and the like. In addition, according to different application environments of the cable, the isolation layer 2 and the armor layer 3 can be made of materials selected in a targeted mode, for example, waterproof materials are selected on the seabed, and fireproof materials are selected in a high-temperature environment.

As shown in figure 1, a filling layer 5 positioned in the isolation layer 2 is arranged in the gap of the cable core 1, and the filling layer 5 is a glass fiber cotton layer which is made of a material with good heat preservation, heat resistance, buffering and energy dissipation effects.

As shown in fig. 1, the cable core 1 includes a conductor 11, a conductor shield 12, a crosslinked polyethylene insulating layer 13, an insulating shield 14, and a metal shield 15, which are sequentially disposed from inside to outside, so as to further ensure overall flame retardant, compression resistant, and wear resistant properties of the power cable.

The working principle of the compression-resistant stretch-resistant power cable is as follows: when the power cable is stressed, force can be transmitted along the setting direction of the supporting rod 431, so that the whole supporting unit generates elastic deformation, the effect of energy dissipation and buffering is achieved, and the power cable is matched with the first outer protective layer 41 and the second outer protective layer 42 and has outstanding compression resistance and stretch resistance.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (5)

1. The compression-resistant stretch-resistant power cable is characterized by comprising a plurality of cable cores (1), wherein an isolation layer (2) is arranged outside each cable core, an armor layer (3) is arranged on one side, opposite to the cable cores (1), of each isolation layer (2), and a sheath (4) is arranged on one side, opposite to the isolation layer (2), of each armor layer (3);

sheath (4) are including being close to first outer jacket (41) of armor (3), keeping away from second outer jacket (42) of armor (3) and being located elastic layer (43) between the two, elastic layer (43) comprise a plurality of supporting element, the supporting element is including bracing piece (431) that connects mutually in order, the head and the tail portion of bracing piece (431) is equipped with crest end (432) and trough end (433), crest end (432) all with second outer jacket (42) fixed connection, trough end (433) all with first outer jacket (41) fixed connection.

2. The power cable of claim 1, wherein the connection between the peak end (432) and the second outer sheath (42) and the connection between the valley end (433) and the first outer sheath (41) are provided with reinforcing rings (434).

3. The cable according to claim 1, wherein the first and second outer sheaths (41, 42) are ceramic silicone rubber layers.

4. The compression-resistant and stretch-resistant power cable as claimed in claim 1, wherein a filling layer (5) is disposed in the gaps of the cable core (1) and located in the isolation layer (2), and the filling layer (5) is a glass fiber cotton layer.

5. The compression-resistant and stretch-resistant power cable as claimed in claim 1, wherein the cable core (1) comprises a conductor (11), a conductor shield (12), a crosslinked polyethylene insulating layer (13), an insulating shield (14) and a metal shield (15) which are arranged in sequence from inside to outside.

Images