CN211879115U - Pressure-resistant and deformation-resistant cable - Google Patents
Pressure-resistant and deformation-resistant cable Download PDFInfo
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- CN211879115U CN211879115U CN202020910213.9U CN202020910213U CN211879115U CN 211879115 U CN211879115 U CN 211879115U CN 202020910213 U CN202020910213 U CN 202020910213U CN 211879115 U CN211879115 U CN 211879115U
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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
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Abstract
The utility model discloses a withstand voltage anti-deformation cable, apply to the technical field of cable, the cracked technical problem of cable bending deformation easily among the prior art has been solved, its technical scheme main points include cable dustcoat and a plurality of cable inner core, the cable inner core includes a plurality of electrically conductive heart yearns and is used for cladding the insulating layer of a plurality of electrically conductive heart yearns, the inside of cable dustcoat from inside to outside in proper order has the anti-extrusion layer, antioxidation layer and anti-deformation layer, the anti-extrusion layer is stereoplasm composite graphite barrel felt layer, a plurality of cable inner cores all settle in the inside of stereoplasm composite graphite barrel felt layer, the antioxidation layer is phenolic foam ageing-resistant layer, anti-deformation layer includes the energy-absorbing buffer layer and the elasticity that are used for absorbing external extrusion force and resets the layer; the cable has the advantages of high structural strength and strong deformation resistance, reduces the possibility that the cable is erected at high altitude and is easy to bend, deform and break, and prolongs the service life of the cable.
Description
Technical Field
The utility model relates to a power transmission equipment's technical field, in particular to withstand voltage resistance to deformation cable.
Background
The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater, and has a gradually increasing proportion in the power line.
The traditional Chinese patent with the publication number of CN204440975U discloses a heat-resistant low-smoke solar cable, which comprises a conductor, wherein a winding layer is arranged outside the conductor, an insulating layer is arranged outside the winding layer, a shielding layer is arranged outside the insulating layer, a sheath layer is arranged outside the shielding layer, a protective sleeve is arranged outside the sheath layer, heat-resistant particles are filled between the conductor and the winding layer, and between the insulating layer and the shielding layer, the heat-resistant particles contain mica, a standby conductor is also arranged in the winding layer, and a nylon cloth layer is attached to the inner walls of the sheath layer and the protective sleeve or the sheath layer or the protective sleeve; the cable is simple in overall structure, can be wound into a ring, has the characteristics of high temperature resistance, corrosion resistance and low smoke and zero halogen, and is convenient to use, transport and store.
However, the above technical solutions have the following disadvantages: because this cable does not set up protective structure, erects when the height when cable long distance, if meet strong wind and blow, great rocking phenomenon can appear in the cable, is unfavorable for stably, and can make the cable drop from the cable frame easily, arouses the cracked possibility of cable deformation easily, and factor of safety is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a withstand voltage resistance to deformation cable, its advantage is: structural strength is high, and anti deformability is strong, factor of safety is high, has reduced the cable frame and has erect when the height, takes place the cracked possibility of bending deformation easily, the effectual life who prolongs the cable.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a withstand voltage resistance to deformation cable, includes cable dustcoat and a plurality of cable inner core, the cable inner core includes the electrically conductive heart yearn of a plurality of and is used for the insulating layer of the electrically conductive heart yearn of cladding a plurality of, still includes extrusion-resistant layer, oxidation resisting layer and the anti deformation layer of from interior to exterior cladding in proper order, extrusion-resistant layer is stereoplasm composite graphite section of thick bamboo felt layer, and is a plurality of the cable inner core is all settled in stereoplasm composite graphite section of thick bamboo felt layer, oxidation resisting layer is phenolic foam ageing-resistant layer, the anti deformation layer is including energy-absorbing buffer layer and the elasticity layer that resets that is used for absorbing external extrusion force, the inner wall at the cable dust.
Through the technical scheme, the phenolic foam board has the characteristics of light weight, fire resistance, flame retardance, good chemical stability, corrosion resistance and aging resistance due to the phenolic foam aging-resistant layer, the oxidation speed of the cable inner core can be effectively reduced, and the service life of the cable inner core is prolonged; the hard composite graphite barrel felt layer has the characteristics of certain rigidity, self-supporting force and no deformation under high temperature, and the bending deformation of the cable inner core caused by the extrusion of external force is avoided.
When the cable housing is acted by external force, the energy absorption buffer layer is used for absorbing and relieving impact force, and meanwhile, the resetting function of the elastic resetting layer is used for enhancing the compressive strength of the cable housing so as to prevent the cable housing from deforming; adopt the cable that above-mentioned structure constitutes, have structural strength height, advantage that anti deformability is strong for the cable erection can effectually reduce the cable and take place the cracked possibility of bending deformation when the height, and then the life that has prolonged, factor of safety is high.
The utility model discloses further set up to: the energy-absorbing buffer layer comprises a high-energy EVA (ethylene-vinyl acetate copolymer) foaming material layer, a stripe rubber layer and a high anti-tearing silica gel layer which are sequentially coated on the outer wall of the anti-oxidation layer from inside to outside, and the stripe anti-skidding rubber ring plate layer is in concave-convex fit with the high anti-tearing silica gel layer.
Through above-mentioned technical scheme, high resistance tears silica gel layer has that elasticity is good, resistance tears the advantage that the tensile properties is strong, can avoid causing the cracked phenomenon of cable to take place because of ambient pressure, and then protects high energy EVA expanded material layer and stripe rubber layer.
When an external force acts, the stripe rubber layer is in concave-convex fit with the high tear-resistant silica gel layer, and the stripe rubber layer has good buffering performance and wear resistance, so that the friction force is increased, and the phenomenon of dislocation caused by deformation of the stripe rubber layer and the high tear-resistant silica gel layer can be reduced; simultaneously, primarily buffering and damping the pressure generated by the outside through the stripe rubber layer; the high-energy EVA foaming material layer has good buffering, anti-seismic, heat-insulating, moisture-proof and chemical corrosion-resistant effects, can further buffer external pressure to prevent the oxidation-resistant layer and the extrusion-resistant layer from being greatly deformed, and enhances the protection effect on the inner core of the cable.
The utility model discloses further set up to: elasticity resets the layer and includes along a plurality of rubber strips of high anti silica gel layer outer wall circumference array and the resistance to compression steel strip layer that sets up near cable cover inner wall, the longitudinal section semicircular in shape setting of rubber strip, be equipped with the space that resets in the rubber strip, it supports the resistance to deformation resilience piece at resistance to compression steel strip layer inner wall tightly to reset to be equipped with in the space, and is adjacent enclose between the outer wall of rubber strip and the inner wall on resistance to compression steel strip layer and close and form the pressure buffering space.
Through the technical scheme, the resistance to compression steel band has the effect of good resistance to compression buffering and torsional force, and the rubber strip has good elasticity, and then when taking place the exogenic action and lead to the resistance to compression steel band to produce local deformation phenomenon, at first utilize the rubber strip to play the effect of shock attenuation and buffering to external force, recycle the elasticity of resistance to compression rebound spare and rubber strip, make the outer wall of rubber strip tightly support the inner wall at resistance to compression steel band layer, make resistance to compression steel band layer reset, and then reduced the cable and taken place the cracked possibility of bending deformation.
The utility model discloses further set up to: the anti-deformation rebound piece comprises an elastic steel sheet, a plurality of high-elasticity rubber columns and a high-elasticity rubber supporting block, wherein the elastic steel sheet is in adhesive connection with the inner arc wall of the rubber strip, the high-elasticity rubber supporting block is arranged on the inner bottom wall of the rubber strip, the longitudinal section of the high-elasticity rubber supporting block is in inverted trapezoid shape, the shorter bottom edge of the high-elasticity rubber supporting block is connected with the high-elasticity rubber columns, the longer bottom edge of the high-elasticity rubber supporting block tightly supports the inner arc wall of the elastic steel sheet, and the side wall, attached to the elastic steel sheet, of the high-elasticity rubber supporting block is arranged to be an arc surface.
Through the technical scheme, the elastic steel sheet has good elasticity, so that when the compression-resistant steel belt, the elastic steel sheet and the rubber strip are deformed by external force, the elastic steel sheet rebounds by utilizing the resetting capability of the elastic steel sheet and the reversible elastic deformation force of the high-elasticity rubber column and the high-elasticity rubber supporting block, and the rubber strip and the compression-resistant steel belt can be reset; and the arc-shaped surface is arranged, so that the contact area between the high-elasticity rubber support block and the elastic steel sheet is increased, the deformation and resilience resistance effect of the high-elasticity rubber support block is enhanced, the possibility of bending and breaking of the cable is further reduced, and the service life of the cable is effectively prolonged.
The utility model discloses further set up to: the high-elasticity rubber columns are arranged at equal intervals along the axial direction of the rubber strip, the high-elasticity rubber columns are in the same direction with the radial direction of the rubber strip, and the length directions of the high-elasticity rubber columns are gradually decreased from the middle to the two sides.
Through the technical scheme, the length directions of the plurality of high-elasticity rubber columns are gradually decreased from the middle to the two sides, so that the high-elasticity rubber support block can be tightly propped against the inner arc wall of the elastic steel sheet, the elastic steel sheet is stably supported, and the compressive resistance of the elastic steel sheet is enhanced.
The utility model discloses further set up to: the cable core is characterized in that a supporting shaft in the same direction as the axis of the hard composite graphite barrel felt layer is arranged at the axis of the hard composite graphite barrel felt layer, a plurality of screen plates are arranged around the circumference of the supporting shaft, one end, away from the supporting shaft, of each screen plate is connected with the inner wall of the hard composite graphite barrel felt layer, a separation space used for containing cable cores is formed between the screen plates and the side wall of the hard composite graphite barrel felt layer in an enclosing mode, and an aerogel felt heat insulation layer used for coating the inner core of the cable is filled in the separation space.
Through the technical scheme, the combination of the support shaft and the screen plate is convenient for arranging the plurality of cable cores in a separated mode; the cable inner core is insulated by the aerogel felt thermal insulation layer, so that the influence on the normal operation of the cable caused by overhigh external temperature can be avoided, and the safety coefficient is high; because the aerogel felt has certain tensile strength and compressive strength, the protection effect on the cable inner core is further enhanced, the phenomenon of fracture of the cable inner core can be effectively avoided, and the service life of the cable is prolonged.
The utility model discloses further set up to: it is adjacent the otter board just keeps away from and is connected with the resistance to compression ring board between the lateral wall of back shaft, the equidistant range of axial along the back shaft of resistance to compression ring board, the inner arc wall of resistance to compression ring board is towards the partition space, the outer arc wall of resistance to compression ring board hugs closely at the inner wall of stereoplasm composite graphite section of thick bamboo felt layer.
Through above-mentioned technical scheme, through a plurality of resistance to compression ring boards, can avoid the cable inner core to receive external pressure and appear warping and cracked phenomenon, further strengthened the protective effect to the cable inner core.
The utility model discloses further set up to: rubber pads are glued to opposite side walls of the compression-resistant ring plate and the hard composite graphite barrel felt layer, and wave curved surfaces matched with each other are arranged on the side walls, attached to each other, of the two rubber pads.
Through above-mentioned technical scheme, the setting of rubber pad and wave curved surface plays buffering, absorbing effect to external force, when preventing to receive the external force effect, misplaces between resistance to compression ring board and the compound graphite section of thick bamboo felt layer of stereoplasm to improve the protective effect to the cable inner core.
To sum up, the utility model discloses following beneficial effect has:
1. the energy absorption buffer layer absorbs external extrusion force to prevent the oxidation resistant layer and the extrusion resistant layer from being greatly deformed, so that the inner core of the cable is kept stable, and meanwhile, the elastic reset layer is used for providing deformation restoring force for the cable outer cover, so that the possibility of deformation of the cable outer cover is reduced, and the service life of the cable is prolonged;
2. the high-energy EVA foaming material layer, the stripe rubber layer and the high-tear-resistance silica gel layer are combined to form an energy-absorbing buffer layer, so that the energy-absorbing buffer layer has the functions of relaxing and absorbing external pressure and impact force, the oxidation-resistant layer and the extrusion-resistant layer are prevented from being greatly deformed, the protection effect on the cable inner core is enhanced, the phenomena of bending, deformation and fracture of the cable inner core caused by overlarge impact of external force are avoided, and the service life of the cable is effectively prolonged;
3. the outer wall of the rubber strip can be tightly propped against the inner wall of the compression-resistant steel belt layer by utilizing the elasticity of the elastic steel sheet and the elasticity of the high-elasticity rubber column and the high-elasticity rubber block, so that the compression-resistant steel belt layer can be automatically reset when the external force is applied, and the possibility of bending and breaking of the cable is further reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Reference numerals: 1. a cable housing; 2. an inner core of the cable; 21. a conductive core wire; 22. an insulating layer; 3. an extrusion-resistant layer; 31. a hard composite graphite cylinder felt layer; 4. an anti-oxidation layer; 41. a phenolic foam aging resistant layer; 5. an anti-deformation layer; 6. an energy-absorbing buffer layer; 61. a high-energy EVA foaming material layer; 62. a stripe rubber layer; 63. a high tear resistance silicone layer; 64. a shock absorbing space; 7. an elastic reset layer; 71. a rubber strip; 72. a compression-resistant steel belt layer; 73. a pressure relief space; 74. a reset space; 8. a strain resistant resilient member; 81. an elastic steel sheet; 82. a high-elasticity rubber column; 83. a high-elasticity rubber supporting block; 9. a support shaft; 10. a screen plate; 11. a compression-resistant ring plate; 12. separating the space; 13. an aerogel blanket thermal insulation layer; 14. a rubber pad; 15. a wavy curved surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1, a withstand voltage anti-deformation cable comprises a cable outer cover 1 and a plurality of cable inner cores 2, wherein each cable inner core 2 comprises a plurality of conductive core wires 21 and an insulating layer 22 wrapped on the plurality of conductive core wires 21, the insulating layer 22 is an insulating rubberized fabric layer, and the insulating rubberized fabric layer has the characteristics of good insulating property, flame retardance, high voltage resistance, high temperature resistance, strong contraction elasticity, good weather resistance and the like, and the plurality of conductive core wires 21 are wrapped by using the insulating rubberized fabric to form the cable inner cores 2, so that the adjacent two cable inner cores 2 are insulated and protected; a plurality of cable inner cores 2 are coated by the cable outer cover 1, the cable outer cover 1 is made of insulating rubber, the protection effect on the cable inner cores 2 is enhanced, and therefore electric power can be stably transmitted.
Referring to fig. 1, in order to settle a plurality of cable inner cores 2 in cable dustcoat 1, the middle axle center department of cable dustcoat 1 is equipped with rather than the axial syntropy back shaft 9, circumference that encircles back shaft 9 is equipped with a plurality of otter boards 10 (the quantity is preferred 4), the one end that otter board 10 keeps away from back shaft 9 is towards the inner wall of cable dustcoat 1 mutually, enclose between the inner wall of two adjacent otter boards 10 and cable dustcoat 1 and close and be formed with separated space 12, separated space 12 is used for holding the cable core, and have the mesh on the otter board 10, the texture is lighter, play radiating effect, back shaft 9, otter board 10 combination forms the support frame, be convenient for settle cable inner core 2, the possibility that the cable takes place bending deformation fracture.
Referring to fig. 1, the separated space 12 is filled with an aerogel felt thermal insulation layer 13 for coating the cable core 2, and the aerogel felt thermal insulation layer 13 plays a role in thermal insulation and heat preservation of the cable core 2, so that the influence on the normal operation of the cable when the external temperature is too high can be avoided; and the aerogel felt has certain tensile strength and compressive strength, can effectively avoid the phenomenon of fracture of the cable inner core 2, and further enhances the protection effect on the cable inner core 2.
Referring to fig. 1, a compression-resistant ring plate 11 is connected between two adjacent mesh plates 10 and the side wall far away from a support shaft 9, the inner arc wall of the compression-resistant ring plate 11 faces a separation space 12, the outer arc wall of the compression-resistant ring plate 11 faces the inner wall of a cable housing 1, the compression-resistant ring plates 11 are arranged at equal intervals along the axial direction of the support shaft 9, and a heat dissipation space is reserved between two adjacent compression-resistant ring plates 11, so that high temperature in the separation space 12 can be conveniently dissipated through the heat dissipation space, heat accumulation in the separation space 12 is avoided, and a cable inner core 2 can stably work; meanwhile, the phenomenon that the cable inner core 2 is deformed and broken due to external pressure can be avoided, and the protection effect on the cable inner core 2 is further enhanced.
Referring to fig. 1, in order to avoid bending and breaking of the cable when the cable is erected at a high altitude and blown by strong wind, an extrusion-resistant layer 3, an oxidation-resistant layer 4 and a deformation-resistant layer 5 are sequentially coated between a plurality of cable cores 2 and a cable outer cover 1 from inside to outside, the extrusion-resistant layer 3, the oxidation-resistant layer 4 and the deformation-resistant layer 5 are in adhesive connection, and the outer arc wall of a compression-resistant annular plate 11 and one end, far away from a supporting shaft 9, of a net plate 10 are connected with the extrusion-resistant layer 3.
The extrusion-resistant layer 3 can be used for enhancing the extrusion resistance of the cable inner core 2, and the oxidation-resistant layer 4 is used for enabling the extrusion-resistant layer 3 and the cable inner core 2 to have an oxidation-resistant effect and reducing the probability of aging damage so as to prolong the service life of the cable; when the cable cover 1 is acted by external force, the anti-deformation layer 5 is used for enhancing the compressive strength of the cable cover 1 so as to prevent the cable cover 1 from deforming; adopt the cable that above-mentioned structure constitutes, have structural strength height, advantage that anti deformability is strong for the cable erection can effectually reduce the cable and take place the cracked possibility of bending deformation when the height, and then the life that has prolonged, factor of safety is high.
Referring to fig. 1 and 2, the extrusion-resistant layer 3 is used for coating a plurality of cable cores 2, the extrusion-resistant layer 3 is a hard composite graphite barrel felt layer 31, and the hard composite graphite barrel felt is formed by carbonizing a graphite felt, has the characteristics of certain rigidity, self-supporting force and no deformation under high temperature, and further has a compression-resistant effect on the cable cores 2; and the weight is light, and the strength of erecting and assembling cable lines by workers can be reduced.
Referring to fig. 1 and 2, rubber pads 14 are glued to opposite side walls of the compression ring plate 11 and the hard composite graphite barrel felt layer 31, the rubber pads 14 play a role in buffering and damping external force, and the side walls, attached to each other, of the two rubber pads 14 are provided with wave curved surfaces 15 matched with each other, so that dislocation between the compression ring plate 11 and the hard composite graphite barrel felt layer 31 is prevented, and the protection effect on the cable inner core 2 is improved.
Referring to fig. 1 and 2, because cable inner core 2 is because of the easy ageing damage of long-time use, set up antioxidation layer 4 and be phenolic foam ageing-resistant layer 41, phenolic foam board has light, fire prevention, fire-retardant, chemical stability is good, anticorrosive ageing-resistant characteristics, and then can effectual reduction cable inner core 2 oxidation's speed, prolonged cable inner core 2's life.
Referring to fig. 1 and 2, the anti-deformation layer 5 includes an energy-absorbing buffer layer 6 and an elastic reset layer 7, the energy-absorbing buffer layer 6 is adhesively connected to the anti-oxidation layer 4, and the elastic reset layer 7 abuts against the inner wall of the cable housing 1, so that when the outer portion of the cable housing 1 is deformed by pressure, the elastic reset layer 7 is deformed, and the elastic reset function of the elastic reset layer 7 is utilized to provide deformation restoring force for the cable housing 1, thereby reducing the possibility of deformation of the cable housing 1; meanwhile, the energy absorption buffer layer 6 is used for absorbing external extrusion force, the oxidation resistant layer 4 and the extrusion resistant layer 3 are prevented from being greatly deformed, the cable inner core 2 is kept stable, stable power transmission is facilitated, and the protection effect is further enhanced.
Referring to fig. 1 and 2, the energy absorption buffer layer 6 comprises a high-energy EVA foam material layer 61, a stripe rubber layer 62 and a high tear-resistant silica gel layer 63 which are sequentially coated on the outer wall of the oxidation resistant layer 4 from inside to outside; because high anti silica gel layer 63 that tears has the advantage that elasticity is good, anti pulling properties is strong, can avoid causing the cracked phenomenon of cable to take place because of ambient pressure, and then protect high energy EVA foaming material layer 61 and stripe rubber layer 62.
The strip rubber layer 62 is plate-type strip rubber, has good wear resistance and can be in concave-convex fit with the high tear-resistant silica gel layer 63, and further, when an external force acts, the phenomenon of dislocation caused by deformation of the strip rubber layer 62 and the high tear-resistant silica gel layer 63 can be reduced due to large friction force between the strip rubber layer 62 and the high tear-resistant silica gel layer 63; and the plate-type stripe rubber is made of rubber, has good buffering and damping effects, and can further primarily buffer and damp the pressure which can be generated to the outside.
The high-energy EVA foaming material layer 61 is a high-energy EVA foaming plate, and has good buffering, anti-seismic, heat-insulating, moisture-proof and chemical corrosion-resistant effects so as to further buffer the external pressure; therefore, through combination of the high-energy EVA foaming material layer 61, the stripe rubber layer 62 and the high tear-resistant silica gel layer 63, when the external pressure is applied, the external pressure can be isolated and buffered, so that the oxidation-resistant layer 4 and the extrusion-resistant layer 3 are prevented from being greatly deformed, and the protection effect on the cable inner core 2 is further enhanced.
Referring to fig. 1 and 2, the elastic reset layer 7 comprises a plurality of rubber strips 71 arrayed along the circumferential direction of the energy-absorbing buffer layer 6 and a pressure-resistant steel belt layer 72 arranged to be closely attached to the inner wall of the cable housing 1, and the pressure-resistant steel belt layer 72 has good pressure resistance and torsion resistance and can prevent the cable from breaking; the axial direction of rubber strip 71 and the axial syntropy of cable enclose between the outer wall of two adjacent rubber strips 71 and the inner wall of resistance to compression steel tape layer 73 and close and form pressure-relieving space 74, play dispersion, the effect of alleviating to external pressure.
Referring to fig. 1 and 2, the anti-buckling elastic member 8 includes an elastic steel sheet 81 disposed in an arc shape, a plurality of high elastic rubber columns 72 disposed on the inner bottom wall of the rubber strip 71, and a high elastic rubber support block 73 connected to the high elastic rubber columns 72, the elastic steel sheet 81 is adhered to the inner arc wall of the rubber strip 71, and the elastic steel sheet 81 has good elasticity and restoring capability, so that the rubber strip 71 can be tightly pressed against the inner wall of the compression-resistant steel belt layer 71.
The longitudinal section of the high-elasticity rubber support block 83 is in an inverted trapezoid shape, the shorter bottom edge of the high-elasticity rubber support block 83 is connected with the high-elasticity rubber column 82, and the longer bottom edge of the high-elasticity rubber support block 83 is tightly abutted against the inner arc wall of the elastic steel sheet 81, so that the contact area between the high-elasticity rubber support block 83 and the elastic steel sheet 81 is increased, the elastic steel sheet 81 is kept stable, and the rubber strip 71 can be tightly abutted against the inner wall of the compression-resistant steel strip layer 71.
If the rubber strip 71 and the elastic steel sheet 72 deform, the elastic steel sheet 72 is reset along with the rebound of the high-elasticity rubber support block 83 by utilizing the good reversible elastic deformation force of the high-elasticity rubber support block 83 and the high-elasticity rubber column 82 and further rebounding of the high-elasticity rubber support block 83 and the high-elasticity rubber column 82.
In this embodiment, the number of the high-elasticity rubber supporting blocks 83 is set to three, the length directions of the three high-elasticity rubber supporting blocks 83 are all in the same direction as the radial direction of the rubber strip 71, and the length directions of the three high-elasticity rubber supporting blocks 83 are gradually decreased from the middle to the two sides, so that the high-elasticity rubber supporting blocks 83 are tightly pressed against the inner wall of the elastic steel sheet 81; the side wall of the high-elasticity rubber supporting block 83 which is jointed with the elastic steel sheet 81 is set to be an arc-shaped surface, so that the contact area of the high-elasticity rubber supporting block 83 and the elastic steel sheet 81 is increased, the elastic steel sheet 81 is stably supported, and the deformation-resistant rebound effect is effectively improved.
The working principle is as follows: when the cable housing 1 is deformed by an external force, the elastic steel sheet 72 and the rubber strip 71 are extruded, and the rubber strip 71 can tightly abut against the inner wall of the compression-resistant steel belt layer 72 by utilizing the elasticity of the elastic steel sheet 72 and the reversible elastic deformation force of the high-elasticity rubber support block 83 and the high-elasticity rubber column 82, so that the compression-resistant steel belt layer 72 is reset, and further the reset of the cable housing is realized.
When receiving external extrusion force, utilize stripe rubber layer 62 and high anti silica gel layer 63, keep apart, cushion to external pressure simultaneously, rethread high energy EVA foaming material layer 61 further cushions the extrusion force to prevent that oxidation resisting layer 4, resistant extrusion layer 3 from receiving great deformation, strengthened the protective effect to cable inner core 2, can effectual reduction cable take place the cracked possibility of bending deformation, and then the life who has prolonged, factor of safety is high.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a withstand voltage resistance to deformation cable, includes cable dustcoat (1) and a plurality of cable inner core (2), cable inner core (2) include a plurality of electrically conductive heart yearn (21) and be used for insulating layer (22) of cladding a plurality of electrically conductive heart yearn (21), its characterized in that: still include extrusion-resistant layer (3), oxidation resisting layer (4) and anti deformation layer (5) of from interior to exterior cladding in proper order, extrusion-resistant layer (3) are stereoplasm composite graphite section of thick bamboo felt layer (31), and are a plurality of cable inner core (2) are all settled in stereoplasm composite graphite section of thick bamboo felt layer (31), oxidation resisting layer (4) are phenolic foam ageing-resistant layer (41), anti deformation layer (5) are including energy-absorbing buffer layer (6) and elasticity layer (7) that resets that are used for absorbing external extrusion force, elasticity layer (7) that resets tightly support the inner wall at cable cover (1).
2. The pressure-resistant deformation-resistant cable according to claim 1, wherein: energy-absorbing buffer layer (6) include from interior to exterior in proper order cladding high energy EVA foaming material layer (61), stripe rubber layer (62) and high anti-tear silica gel layer (63) on oxidation resisting layer (4) outer wall, stripe anti-skidding rubber ring board layer and high anti-tear silica gel layer (63) unsmooth cooperation.
3. The pressure-resistant deformation-resistant cable according to claim 2, wherein: elasticity layer (7) that resets includes along a plurality of rubber strips (71) of high tear-resistant silica gel layer (63) outer wall circumference array and near resistance to compression steel strip layer (72) that cable dustcoat (1) inner wall set up, the longitudinal section semicircular in shape of rubber strip (71) sets up, be equipped with in rubber strip (71) and reset space (74), reset and be equipped with in space (74) and tightly support rubber strip (71) at resistance to deformation resilience piece (8) of resistance to compression steel strip layer (72) inner wall, it is adjacent enclose between the outer wall of rubber strip (71) and the inner wall of resistance to compression steel strip layer (72) and close formation and slowly press space (73).
4. The pressure-resistant deformation-resistant cable according to claim 3, wherein: anti change resilience piece (8) include elastic steel sheet (81) of adhesive connection on rubber strip (71) inner arc wall, set up a plurality of high elasticity rubber post (82) on rubber strip (71) inner arc wall and high elasticity rubber tray (83) continuous with high elasticity rubber post (82), elastic steel sheet (81) are the arc setting, the longitudinal section of high elasticity rubber tray (83) is the trapezoidal setting of falling, the shorter base of high elasticity rubber tray (83) links to each other with high elasticity rubber post (82), the inner arc wall at elastic steel sheet (81) is tightly supported on the longer base of high elasticity rubber tray (83), the lateral wall that high elasticity rubber tray (83) and elastic steel sheet (81) were laminated mutually is established to the arcwall face.
5. The pressure-resistant deformation-resistant cable according to claim 4, wherein: the plurality of high-elasticity rubber columns (82) are arranged at equal intervals along the axial direction of the rubber strip (71), the plurality of high-elasticity rubber columns (82) are all in the same direction with the radial direction of the rubber strip (71), and the length directions of the plurality of high-elasticity rubber columns (82) are gradually decreased from the middle to the two sides.
6. The pressure-resistant deformation-resistant cable according to claim 1, wherein: the axle center department of stereoplasm composite graphite section of thick bamboo felt layer (31) is equipped with rather than axial syntropy back shaft (9), encircles the circumference of back shaft (9) is equipped with a plurality of otter boards (10), the one end that back shaft (9) were kept away from in otter board (10) links to each other with the inner wall of stereoplasm composite graphite section of thick bamboo felt layer (31), and is adjacent enclose between the lateral wall of otter board (10) and stereoplasm composite graphite section of thick bamboo felt layer (31) and close and be formed with separation space (12) that are used for holding the cable core, separation space (12) intussuseption is filled with aerogel felt insulating layer (13) that are used for cladding cable inner core (2.
7. The pressure-resistant deformation-resistant cable according to claim 6, wherein: it is adjacent otter board (10) and keep away from and be connected with resistance to compression ring board (11) between the lateral wall of back shaft (9), resistance to compression ring board (11) are arranged along the axial of back shaft (9) equidistant, the inner arc wall of resistance to compression ring board (11) is towards separate space (12), the outer arc wall of resistance to compression ring board (11) hugs closely the inner wall at stereoplasm composite graphite section of thick bamboo felt layer (31).
8. The pressure-resistant deformation-resistant cable according to claim 7, wherein: rubber pads (14) are glued to opposite side walls of the compression ring plate (11) and the hard composite graphite barrel felt layer (31), and wave curved surfaces (15) which are matched with each other are arranged on the side walls, attached to each other, of the two rubber pads (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910213.9U CN211879115U (en) | 2020-05-26 | 2020-05-26 | Pressure-resistant and deformation-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020910213.9U CN211879115U (en) | 2020-05-26 | 2020-05-26 | Pressure-resistant and deformation-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211879115U true CN211879115U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020910213.9U Active CN211879115U (en) | 2020-05-26 | 2020-05-26 | Pressure-resistant and deformation-resistant cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735650A (en) * | 2020-12-28 | 2021-04-30 | 广州钟阳科技有限公司 | Cable for 5G base station control line |
| CN112820461A (en) * | 2020-12-30 | 2021-05-18 | 广州市钰诚电子有限公司 | Extrusion-resistant and wear-resistant cable |
| CN114843021A (en) * | 2022-06-13 | 2022-08-02 | 江西广通电缆股份有限公司 | High-temperature-resistant flame-retardant wire and cable |
-
2020
- 2020-05-26 CN CN202020910213.9U patent/CN211879115U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735650A (en) * | 2020-12-28 | 2021-04-30 | 广州钟阳科技有限公司 | Cable for 5G base station control line |
| CN112820461A (en) * | 2020-12-30 | 2021-05-18 | 广州市钰诚电子有限公司 | Extrusion-resistant and wear-resistant cable |
| CN114843021A (en) * | 2022-06-13 | 2022-08-02 | 江西广通电缆股份有限公司 | High-temperature-resistant flame-retardant wire and cable |
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