CN210245103U - Shock-absorbing flexible trailing cable - Google Patents
Shock-absorbing flexible trailing cable Download PDFInfo
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- CN210245103U CN210245103U CN201921232782.6U CN201921232782U CN210245103U CN 210245103 U CN210245103 U CN 210245103U CN 201921232782 U CN201921232782 U CN 201921232782U CN 210245103 U CN210245103 U CN 210245103U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a damping flexible trailing cable, which comprises a first damping buffer layer, wherein the first damping buffer layer is arranged in the middle of the cable and is provided with a plurality of first arc-shaped mounting surfaces; the plurality of conductive cable cores are annularly arranged around the first damping buffer layer and are correspondingly attached to the plurality of first arc-shaped mounting surfaces one by one; the plurality of shock absorbing pieces and the ground wire cable cores are arranged between any two adjacent conductive cable cores in a one-to-one correspondence manner; the water blocking tape is wound and wrapped on the outer peripheral walls of the plurality of cable guiding cores, the plurality of shock absorbing pieces and the ground wire cable core; the inner sheath is a high-strength rubber piece and is abutted against the outer peripheral wall of the water blocking tape; the woven mesh layer is attached to the outer side of the inner sheath; oversheath, oversheath are thermoplastic material and the oversheath closely covers the outside of locating to weave the stratum reticulare, according to the utility model discloses the structure of cable is reliable, stand wear and tear and shock attenuation is effectual.
Description
Technical Field
The utility model belongs to the technical field of the power cable technique and specifically relates to a flexible cable that drags of shock attenuation is related to.
Background
Cables in the related art often face frequent dragging, twisting and scraping in some use environments such as mines and mines, and are also easily rolled directly by engineering trucks and the like, so that the problems of breakage, twisting deformation, electric leakage and the like easily occur.
CN205303021U discloses an anti warp stand wear and tear cable shocks resistance, this cable is through setting up the rubber packing strip in inside in order to realize the shock attenuation, the effect of reducing wear, simultaneously, adopt the first layer inner sheath, the stratum reticulare is woven to stranded aramid fiber silk, the protection to inside cable sub-spare is realized to sheath and polyether type TPU layer in the second floor, but only adopt the rubber packing strip to realize once the shock attenuation in this scheme, and when the cable atress under the condition of rolling is too big, it is unsatisfactory only to lean on rubber packing strip shock attenuation effect, furthermore, the whole external diameter of cable is great, be unfavorable for obtaining better bending property.
CN 205303036U discloses a multifunctional trailing cable, which also has the problems of unsatisfactory damping effect, large outer diameter and poor bending performance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a flexible trailing cable of shock attenuation, the structure of this cable is reliable, stand wear and tear and the shock attenuation is effectual.
According to the utility model discloses cable of first aspect embodiment, including first shock attenuation buffer layer, the middle part of cable is located to the first shock attenuation buffer layer, and the first shock attenuation buffer layer is equipped with a plurality of first arc installation faces; the plurality of conductive cable cores are annularly arranged around the first damping buffer layer and are correspondingly attached to the plurality of first arc-shaped mounting surfaces one by one, and each conductive cable core is tangent to the adjacent conductive cable core; the damping pieces and the ground wire cable cores are arranged between any two adjacent cable guiding cores in a one-to-one correspondence mode, each damping piece is tangent to the adjacent cable guiding core, and the ground wire cable cores are tangent to the adjacent cable guiding cores; the water blocking tape is wound and wrapped on the outer peripheral walls of the plurality of cable guiding cores, the plurality of shock absorbing pieces and the ground wire cable core; the inner sheath is a high-strength rubber piece and is abutted against the outer peripheral wall of the water blocking tape; the woven mesh layer is attached to the outer side of the inner sheath; the outer sheath is made of thermoplastic materials and is tightly covered on the outer side of the woven net layer.
According to the utility model discloses the cable, through adopting first shock attenuation buffer layer, utilize the cushioning effect of first shock attenuation buffer layer, both can cushion the cable and pull, roll in-process atress, reduce the inside wearing and tearing of cable, and simultaneously, through the shock attenuation strip that sets up between conductive cable core and ground wire cable core, can realize the secondary bradyseism, thereby realize dual buffering through first shock attenuation buffer layer and shock attenuation strip, further cushion the atress, reduce the friction damage each other, improve the structural reliability of cable, and prolonged service life.
In addition, compare in the technical scheme that adopts first layer inner sheath, stranded aramid yarn to weave the stratum reticulare, the interior sheath of second layer and polyether TPU layer to realize the protection to inside cable sub-part among the correlation technique, through setting up high strength rubber inner sheath, weaving stratum reticulare and oversheath structure, when guaranteeing to inside cable core protection, reduce the whole external diameter of cable, be favorable to improving bending property.
According to some embodiments of the utility model, the cable still includes second shock attenuation buffer layer, second shock attenuation buffer layer locates ground wire cable core and rather than adjacent between the conductor cable core, just second shock attenuation buffer layer is equipped with a plurality of second arc installation face, ground wire cable core and rather than adjacent conductor cable core one-to-one is pasted and is located a plurality ofly second arc installation face.
According to some examples of the invention, the first shock absorbing buffer layer the second shock absorbing buffer layer all follows the axial extension of cable just the axis of first shock absorbing buffer layer with the axis collineation of oversheath.
According to some examples of the present invention, the first shock absorbing buffer layer is a hollow structure, each of the first arc-shaped installation surfaces is recessed inward toward a center of the first shock absorbing buffer layer to form a first arc-shaped installation groove, and each of the first arc-shaped installation grooves is adapted to a shape of an outer peripheral wall of the cable guiding core corresponding thereto so that the cable guiding core is fitted and abutted in the first arc-shaped installation groove; or second shock attenuation buffer layer is hollow structure, every the second arc mounting groove towards the second shock attenuation buffer layer's center is interior to form second arc mounting groove, every the second arc mounting groove all with its corresponding lead the cable core and the shape of the periphery wall of ground wire cable core is adapted to so that lead the cable core and the laminating of ground wire cable core is supported and is located in the second arc mounting groove.
According to some examples of the invention, the first shock absorbing buffer layer the second shock absorbing buffer layer is for seal structure and full of gas.
According to some examples of the utility model, first shock attenuation buffer layer and second shock attenuation buffer layer is high strength rubber spare or high strength silica gel spare, it forms for the weaving of stranded aramid yarn to weave the stratum reticulare, the oversheath is polyether type TPU layer.
According to some examples of the invention, the cable core comprises: the multi-strand conductive wire core comprises a strand positioned in the center and other strands which are arranged in a multi-layer mode from inside to outside along the radial direction of the conductive wire core and form a ring shape in each layer, wherein the cabling directions of the conductive wire cores of the adjacent layers in the other strands are opposite; the conductive wire core shielding layer is coated on the outer sides of the stranded conductive wire cores; the insulating layer, the insulating layer around wrap in the outside of conductive core shielding layer.
According to some examples of the utility model, the stranded 19 strands of conducting wire core for forming the three-layer arrangement, 1 strand of wherein the conducting wire core is located the center of conducting wire core, 6 strands of wherein the conducting wire core right side spiral is around locating at the center the periphery side of conducting wire core forms time skin, all the other conducting wire core left side spiral is around locating the time skin outside.
According to some examples of the utility model, the bumper shock absorber is rubber strip and this rubber strip totally two, lead cable core totally three, three lead cable cores two rubber strips and the whole stranding of a ground wire cable core, and the total stranding cable pitch is 6-8 times of stranding external diameter.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
The utility model discloses profitable technological effect lies in:
1. by adopting the first damping buffer layer and the second damping buffer layer and utilizing the damping effect of the damping buffer layers, the stress of the cable in the dragging and rolling processes can be buffered, the internal abrasion of the cable is reduced, meanwhile, secondary damping can be realized through the damping strips arranged between the conductive cable core and the ground wire cable core, so that triple buffering is realized through the first damping buffer layer, the second damping buffer layer and the damping strips, the stress is further buffered, the friction damage between the first damping buffer layer and the second damping buffer layer is reduced, the structural reliability of the cable is improved, and the service life is prolonged;
2. compared with the technical scheme that the protection of the internal cable sub-parts is realized by adopting the first inner sheath, the multi-strand aramid fiber woven net layer, the second inner sheath and the polyether TPU layer in the related technology, the high-strength rubber inner sheath, the woven net layer and the outer sheath structure are arranged, so that the overall outer diameter of the cable is reduced while the protection of the internal cable guiding core is ensured, and the bending performance is improved;
3. the first damping buffer layer and the second damping buffer layer are arranged to be hollow inflatable structures, so that the stress can be buffered by utilizing the increase of pressure intensity after the gas in the first damping buffer layer and the second damping buffer layer is stressed, the damping and rolling resistant effects are improved, meanwhile, the whole weight of the cable can be reduced by adopting the hollow inflatable structures, and the cable is convenient to pull;
4. the stranded conductive wire cores in the conductive cable core are arranged into a multilayer structure, and the cabling directions of the conductive wire cores of adjacent layers are opposite, so that the anti-twisting performance of the conductive cable core is further improved by utilizing a cabling mode;
5. the ratio of the total stranding cable pitch to the stranding outer diameter of the cable is reasonably set, so that the poor twisting performance of the cable with the excessively small total stranding cable pitch can be avoided, the poor bending performance of the cable with the excessively large total stranding cable pitch can also be avoided, and the overall anti-twisting performance and the comprehensive anti-bending performance of the whole cable can be ensured.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a cable according to an embodiment of the present invention.
Reference numerals:
a shock absorbing flexible trailing cable 100;
a shock-absorbing bar 10;
a cable core 20; a conductive wire core 21; a conductive core shielding layer 22; an insulating layer 23;
a ground wire cable core 30;
a woven mesh layer 40; an inner sheath 50; an outer sheath 60;
a first cushion layer 71; a second shock absorbing and cushioning layer 72.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A shock absorbing flexible trailing cable 100 according to an embodiment of the first aspect of the present invention is described below with reference to the drawings.
As shown in fig. 1, the shock-absorbing flexible trailing cable 100 according to the embodiment of the present invention includes a first shock-absorbing buffer layer 71, a plurality of cable cores 20, a plurality of shock-absorbing members, and a ground cable core 30, a water blocking tape, an inner sheath 50, a braided mesh layer 40, and an outer sheath 60.
The first shock absorption buffer layer 71 is arranged in the middle of the shock absorption flexible trailing cable 100, and a plurality of first arc-shaped installation surfaces matched with the shape of the peripheral wall of the conductive cable core 20 are arranged on the first shock absorption buffer layer 71. The plurality of conductive cable cores 20 are annularly arranged around the first shock absorption buffer layer 71, the plurality of conductive cable cores 20 are correspondingly attached to and abutted against the corresponding first arc-shaped mounting surface one by one, and meanwhile, each conductive cable core 20 is tangent to the conductive cable core 20 adjacent to the conductive cable core 20.
A plurality of shock absorbing members and a ground wire cable core 30 are correspondingly arranged between any two adjacent conductive cable cores 20 one by one, for example, as shown in fig. 1, three conductive cable cores 20 can be provided, two shock absorbing members are provided, three conductive cable cores 20 are sequentially tangent and annularly arranged to form three gaps, two shock absorbing members are provided in the gap formed by the outer peripheral walls of any two conductive cable cores 20 and are respectively tangent to the outer peripheral walls of the two conductive cable cores 20 adjacent to the shock absorbing members, the ground wire cable core 30 is located in the remaining gap and is tangent to the outer peripheral walls of the two conductive cable cores 20 adjacent to the ground wire cable core 30, so that on one hand, the overall structure of the conductive cable cores 20, the first shock absorbing buffer layer 71, the shock absorbing members and the ground wire cable core 30 is more compact, thereby reducing the overall space occupation of the shock absorbing flexible cable 100, on the other hand, the buffer and shock absorption between the plurality of conductive cable cores 20 can be, meanwhile, secondary buffering and shock absorption can be realized through the shock absorption strip 10 arranged in the gap, so that a dual shock absorption effect is achieved, and the shock absorption strip 10 and the first shock absorption buffer layer 71 are positioned between the cable conducting core 20 and the ground wire cable core 30, so that friction between the cable conducting core 20 and the ground wire cable core 30 caused by compression can be reduced, and internal abrasion is further reduced.
The water blocking tape is arranged on the outer peripheral walls of the plurality of cable cores 20, the plurality of shock absorbing members and the ground wire cable core 30, so that the water blocking effect can be achieved, and meanwhile, the overall structures of the plurality of cable cores 20, the plurality of shock absorbing members, the ground wire cable core 30 and the first shock absorbing buffer layer 71 are more compact, and the gap space is further reduced.
Further, the inner sheath 50, the woven mesh layer 40 and the outer sheath 60 are further sequentially arranged on the outer peripheral wall of the water blocking tape, the outer sheath 60 is made of thermoplastic materials, the inner sheath 50 is made of high-strength rubber, for example, the inner sheath 50 can be made of rubber with the strength larger than 16MPa, and therefore the overall strength of the damping flexible trailing cable 100 is further improved by the inner sheath 50 and the outer sheath 60, and the wear resistance is further improved.
From this, according to the utility model discloses flexible trailing cable 100 of shock attenuation, through adopting first shock attenuation buffer layer 71, utilize the cushioning effect of first shock attenuation buffer layer 71, both can cushion flexible trailing cable 100 of shock attenuation and drag, roll the in-process atress, reduce the flexible trailing cable 100 internal wear of shock attenuation, and simultaneously, through setting up the shock strip 10 between conducting cable core 20 and ground wire cable core 30, can realize the secondary bradyseism, thereby realize dual buffering through first shock attenuation buffer layer 71 and shock strip 10, further cushion the atress, reduce the friction damage each other, improve the structural reliability of flexible trailing cable 100 of shock attenuation, and long service life. In addition, compare in the technical scheme that adopts first layer inner sheath, stranded aramid yarn to weave the stratum reticulare, the interior sheath of second layer and polyether TPU layer to realize the protection to inside cable sub-part among the correlation technique, through setting up high strength rubber inner sheath, weaving stratum reticulare and oversheath structure, when guaranteeing to inside cable core protection, reduce the whole external diameter of cable, be favorable to improving bending property.
Referring to fig. 1, in some embodiments of the present invention, in order to further reduce the abrasion of the ground cable core 30 and the conductive cable core 20 caused by the applied force and improve the shock absorption performance of the whole shock-absorbing flexible trailing cable 100, the shock-absorbing flexible trailing cable 100 is further provided with a second shock-absorbing buffer layer 72, the second shock-absorbing buffer layer 72 is disposed in the gap formed by the ground cable core 30 and the conductive cable core 20 adjacent to the ground cable core 30, and the second shock-absorbing buffer layer is provided with a plurality of second arc-shaped mounting surfaces, the ground cable core 30 and the conductive cable core 20 adjacent to the ground cable core 30 are abutted against the plurality of second arc-shaped mounting surfaces in a one-to-one correspondence manner, for example, in the example shown in fig. 1, the second shock-absorbing buffer layer 72 is formed in a substantially triangular shape having three second arc-shaped mounting surfaces respectively adapted to the shapes of the corresponding conductive cable core 20 and the ground cable core 30, therefore, the conductive cable core 20 and the ground wire cable core 30 can be better attached to the second shock absorption buffer layer 72, and the shock absorption effect is improved.
In some examples of the present invention, in order to ensure the damping and wear reducing effects of the first damping buffer layer 71 and the second damping buffer layer 72, the first damping buffer layer 71 and the second damping buffer layer 72 all extend along the axial direction of the damping flexible trailing cable 100, and the axis of the first damping buffer layer 71 and the axis of the outer sheath 60 are collinear, so that the first damping buffer layer 71 can be centered as much as possible, thereby facilitating the force on each side of the damping flexible trailing cable 100.
As shown in fig. 1, in some examples, the first shock absorbing buffer layer 71 may be a hollow structure, each first arc-shaped installation surface is recessed towards the center to form a first arc-shaped installation groove adapted to the outer shape of the conductive cable core 20, so that the portion of the conductive cable core 20 attached to the first arc-shaped installation surface is located in the first arc-shaped installation groove, thus further ensuring the matching between the first shock absorbing buffer layer 71 and the conductive cable core 20, improving the shock absorbing effect and reducing the abrasion of the first shock absorbing buffer layer 71, and further facilitating the assembly of the first shock absorbing buffer layer 71 and the conductive cable core 20 by forming the matching between the first arc-shaped installation groove and the conductive cable core 20, and reducing the difficulty in preparation.
Similarly, second shock attenuation buffer layer 72 can be hollow structure, thereby every second arc installation face inwards forms the second arc mounting groove with the appearance adaptation of the conductive cable core 20 and the ground wire cable core 30 that correspond to the center indent, thereby make the conductive cable core 20 that correspond, the part that ground wire cable core 30 and second arc installation face were laminated is located second arc mounting groove, can further guarantee second shock attenuation buffer layer 72 and conductive cable core 20 like this, the cooperation of ground wire cable core 30, improve the shock attenuation effect and the effect of reducing wear of second shock attenuation buffer layer 72, and, through forming second arc mounting groove and conductive cable core 20, the cooperation of ground wire cable core 30, also can make things convenient for the assembly of the two in preparation, reduce the preparation degree of difficulty.
In some examples, in order to improve the damping effect of the damping buffer layer, the strength and the structural stability of the damping buffer layer are improved, the first damping buffer layer 71 and the second damping buffer layer 72 are both of a closed structure, and gas is filled in the first damping buffer layer 71 and the second damping buffer layer 72, so that the pressure increase is realized after the gas is stressed in the first damping buffer layer 71 and the second damping buffer layer 72 to buffer the stress, the damping and rolling resistance effects are improved, and in addition, by adopting a hollow inflation structure, the whole weight of the damping flexible trailing cable 100 can be reduced, and the dragging is convenient.
In some examples, the first and second shock absorbing buffers 71 and 72 are made of high-strength rubber or high-strength silicone, the woven mesh layer 40 is woven by a plurality of aramid filaments, and the outer sheath 60 is a polyether TPU layer, so that the overall weight can be reduced by selecting materials and the wear-resistant and shock-absorbing effects can be ensured.
As shown in fig. 1, in some embodiments of the present invention, the conductive cable core 20 mainly comprises a plurality of conductive cable cores 21, a conductive cable core shielding layer 22 and an insulating layer 23, the plurality of conductive cable cores 21 are formed into a multi-layer structure, one of the conductive cable cores 21 is located at the center, the rest of the plurality of conductive cable cores are annular around the center and arranged in multiple layers from inside to outside along the radial direction, and the cabling directions of the conductive cable cores 21 of adjacent layers are opposite, so as to further improve the twisting resistance of the conductive cable core 20 by using a cabling manner.
In order to reduce the electromagnetic influence generated after the conduction between the conductive wire cores 21, the conductive wire core shielding layer 22 is wrapped outside the conductive wire cores 21, and in order to avoid the short circuit between the conductive wire cores 21, an insulating layer 23 is wrapped outside the conductive wire core shielding layer 22.
As shown in fig. 1, in some examples, the conductive core 21 has 19 strands, and forms a three-in-one arrangement from inside to outside, wherein 1 strand is located at the center of the conductive core 21, 6 strands are spirally wound around the central 1 strand of the conductive core 21 to the right to form a secondary outer layer, and the other 12 strands are spirally wound around the secondary outer layer to the left, so that the conductive core 20 can form better flexibility by continuously winding in the forward and reverse directions, thereby improving the anti-twisting performance and prolonging the service life.
Further, as shown in fig. 1, the shock absorbing member is formed as a rubber strip, and the shock absorbing strip 10 has two, the number of the conductive cable cores 20 is three, and three conductive cable cores 20, two rubber strips and one ground cable core 30 are integrally twisted into a cable, wherein the total twisted cable pitch is 6-8 times of the outer diameter of the cable, for example, the total twisted cable pitch is 6 times, 7 times or 8 times of the outer diameter of the cable, so that the poor twisting performance of the shock absorbing flexible trailing cable 100 due to the too small total twisted cable pitch can be avoided, the poor bending performance of the shock absorbing flexible trailing cable 100 due to the too large total twisted cable pitch can also be avoided, and the overall anti-twisting performance and anti-bending performance of the shock absorbing flexible trailing cable 100 can be further ensured.
A method for manufacturing a cable according to an embodiment of the second aspect of the present invention will be described below with reference to the drawings.
According to the utility model discloses cable preparation method, including following step:
first, preparation cable conductor core, one strand of conductive core is adopted at the center, the periphery side that is located the center is around locating to inferior skin adoption 6 strand of conductive core right-hand spirals, the third layer adopts 12 strand of conductive core left-hand spirals around locating inferior skin outside, wherein, the stranding opposite direction of the conductive core of adjacent layer arranges, wherein, adopt the overlapping in proper order in the stranded conductive core outside to arrange conductive core insulating layer and shielding layer around the package mode, the overlap ratio is 45% -55%, obtain the cable conductor core, and can guarantee insulating and shielding effect through setting up the overlap ratio, avoid appearing the electric leakage condition.
Secondly, arranging a first damping buffer layer in the middle of a plurality of conductive cable cores, enabling the plurality of conductive cable cores to be correspondingly attached to a plurality of first arc-shaped installation surfaces one by one, enabling each conductive cable core to be tangent to the adjacent conductive cable core, correspondingly arranging a plurality of damping parts and ground wire cable cores between any two adjacent conductive cable cores one by one, and integrally twisting the conductive cable cores, the damping parts and the ground wire cable cores into a cable, wherein the total twisting cable pitch is 6-8 times of the outer diameter of the cable, for example, the total twisting cable pitch is 6 times, 7 times or 8 times of the outer diameter of the cable, so that the poor twisting performance of the cable with the too small total twisting cable pitch can be avoided, the poor bending performance of the cable with the too large total twisting cable pitch can be avoided, and the overall twisting resistance and bending resistance of the cable can be further ensured;
thirdly, wrapping waterproof tapes with two insulated surfaces around the outer peripheral walls of the plurality of cable cores, the plurality of shock absorbing members and the ground wire cable core;
fourthly, an inner sheath and a woven net layer are sequentially arranged outside the water-blocking tape, and steam is adopted for vulcanization, so that the inner sheath close to one side of the water-blocking tape is embedded into a gap between the cable guiding core and the ground wire cable core, and the gap between the inner sheath and the woven net layer is tightly adhered, the preparation of the inner sheath and the woven net layer is completed, and the high-strength rubber inner sheath can be completely embedded into a gap formed by the outer peripheral walls of the cable guiding core and the ground wire cable core through steam vulcanization, so that the whole structure is more compact, the occupied space is reduced, and the high-strength rubber inner sheath can be used for realizing three-time buffering (namely high-strength inner sheath buffering, first damping buffer layer and second damping buffer layer buffering, and damping strip buffering);
and finally, covering an outer sheath outside the woven mesh layer to prepare the cable.
From this, according to the utility model discloses cable preparation method, preparation process is simple, easily realize, and the cable structure who makes is reliable, wear-resisting and shock attenuation effectual.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
Other constructions and operations of the cable and the method of making the same according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A shock absorbing flexible trailing cable, comprising:
the first shock absorption buffer layer is arranged in the middle of the cable and provided with a plurality of first arc-shaped mounting surfaces;
the plurality of conductive cable cores are annularly arranged around the first damping buffer layer and are correspondingly attached to the plurality of first arc-shaped mounting surfaces one by one, and each conductive cable core is tangent to the adjacent conductive cable core;
the damping pieces and the ground wire cable cores are arranged between any two adjacent cable guiding cores in a one-to-one correspondence mode, each damping piece is tangent to the adjacent cable guiding core, and the ground wire cable cores are tangent to the adjacent cable guiding cores;
the water blocking tape is wound and wrapped on the outer peripheral walls of the plurality of cable guiding cores, the plurality of shock absorbing pieces and the ground wire cable core;
the inner sheath is a high-strength rubber piece and is abutted against the outer peripheral wall of the water blocking tape;
the woven mesh layer is attached to the outer side of the inner sheath;
the outer sheath is made of thermoplastic materials and is tightly covered on the outer side of the woven net layer.
2. The shock-absorbing flexible trailing cable of claim 1, further comprising a second shock-absorbing buffer layer, wherein the second shock-absorbing buffer layer is disposed between the ground wire cable core and the adjacent cable guiding cores, the second shock-absorbing buffer layer is provided with a plurality of second arc-shaped mounting surfaces, and the ground wire cable core and the adjacent cable guiding cores are correspondingly attached to the plurality of second arc-shaped mounting surfaces one to one.
3. The shock absorbing flexible trailing cable of claim 2 wherein the first and second shock absorbing buffers each extend in an axial direction of the cable and an axis of the first shock absorbing buffer is collinear with an axis of the outer jacket.
4. The shock absorbing flexible trailing cable according to claim 3 wherein the first shock absorbing buffer layer is of a hollow structure, each first arcuate mounting groove is recessed inwardly towards the center of the first shock absorbing buffer layer to form a first arcuate mounting groove, each first arcuate mounting groove is adapted to the shape of the outer peripheral wall of its corresponding cable guide core such that the cable guide core fits snugly against the first arcuate mounting groove;
or second shock attenuation buffer layer is hollow structure, every the second arc mounting groove towards the second shock attenuation buffer layer's center is interior to form second arc mounting groove, every the second arc mounting groove all with its corresponding lead the cable core and the shape of the periphery wall of ground wire cable core is adapted to so that lead the cable core and the laminating of ground wire cable core is supported and is located in the second arc mounting groove.
5. The shock absorbing flexible trailing cable of claim 4 wherein the first and second shock absorbing buffers are hermetically sealed and filled with a gas.
6. The shock absorbing flexible trailing cable of claim 4 wherein said first shock absorbing buffer layer and said second shock absorbing buffer layer are high strength rubber or high strength silicone pieces, said woven mesh layer is woven from a plurality of aramid filaments, and said outer jacket is a polyether TPU layer.
7. The shock absorbing flexible trailing cable of claim 1 wherein the cable guide core comprises:
the multi-strand conductive wire core comprises a strand positioned in the center and other strands which are arranged in a multi-layer mode from inside to outside along the radial direction of the conductive wire core and form a ring shape in each layer, wherein the cabling directions of the conductive wire cores of the adjacent layers in the other strands are opposite;
the conductive wire core shielding layer is coated on the outer sides of the stranded conductive wire cores;
the insulating layer, the insulating layer around wrap in the outside of conductive core shielding layer.
8. The shock absorbing flexible trailing cable of claim 7 wherein the plurality of conductive cores are 19 strands formed into a three-layer arrangement, wherein 1 strand of the conductive core is located at the center of the conductive core, wherein 6 strands of the conductive core are helically wound right around the outer circumference of the centrally located conductive core to form a secondary outer layer, and wherein the remaining conductive cores are helically wound left around the outer side of the secondary outer layer.
9. The shock-absorbing flexible trailing cable of claim 7, wherein the shock-absorbing member is a rubber strip and the number of the rubber strip is two, the number of the cable cores is three, the three cable cores, the two rubber strips and the one ground cable core are integrally twisted to form a cable, and the total twisted cable pitch is 6-8 times of the outer diameter of the cable.
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| CN201921232782.6U CN210245103U (en) | 2019-07-31 | 2019-07-31 | Shock-absorbing flexible trailing cable |
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| CN201921232782.6U CN210245103U (en) | 2019-07-31 | 2019-07-31 | Shock-absorbing flexible trailing cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335715A (en) * | 2019-07-31 | 2019-10-15 | 湖南华菱线缆股份有限公司 | A kind of damping flexibility trailing cable and preparation method thereof |
| CN112509736A (en) * | 2020-11-19 | 2021-03-16 | 江苏长城电缆有限公司 | Oil-resistant corrosion-resistant optical cable for 5G power transformation cabinet |
-
2019
- 2019-07-31 CN CN201921232782.6U patent/CN210245103U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335715A (en) * | 2019-07-31 | 2019-10-15 | 湖南华菱线缆股份有限公司 | A kind of damping flexibility trailing cable and preparation method thereof |
| CN112509736A (en) * | 2020-11-19 | 2021-03-16 | 江苏长城电缆有限公司 | Oil-resistant corrosion-resistant optical cable for 5G power transformation cabinet |
| CN112509736B (en) * | 2020-11-19 | 2022-09-09 | 江苏长城电缆有限公司 | Oil-resistant and corrosion-resistant cable for 5G power transformation cabinet |
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