CN112768127B - Medium-voltage cable with good tensile effect - Google Patents
Medium-voltage cable with good tensile effect Download PDFInfo
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- CN112768127B CN112768127B CN202011607044.2A CN202011607044A CN112768127B CN 112768127 B CN112768127 B CN 112768127B CN 202011607044 A CN202011607044 A CN 202011607044A CN 112768127 B CN112768127 B CN 112768127B
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- fixedly connected
- protective layer
- cable
- voltage cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
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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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention relates to the technical field of medium-voltage cables, in particular to a medium-voltage cable with a good tensile effect, which comprises a cable body and a support box, wherein the cable body penetrates through the middle part of the support box, a protective layer is sleeved on the outer wall of the circumference of the cable body, a plurality of steel wire ropes are arranged on the inner wall of the protective layer, a support ring is sleeved on the outer wall of the protective layer, one end of each steel wire rope penetrates through the middle part of the protective layer, a sliding ring is sleeved on the outer part of the protective layer, the inner wall of the sliding ring is fixedly connected with the opposite end of each steel wire rope, springs are sleeved on the outer parts of the steel wire ropes, one end of each spring is fixedly connected with the outer wall of the circumference of the support ring, the other end of each spring is fixedly connected with the inner wall of the sliding ring, a conductive wire is fixedly connected with the middle part of the outer side wall of the protective layer, a current inductor is fixedly connected with the outer wall of the circumference of the support ring, a control panel is installed at the bottom end of the support box, and the control panel is electrically connected with the current inductor; the protection effect is higher, and the on-off of part of circuits can be detected conveniently.
Description
Technical Field
The invention relates to the technical field of medium voltage cables, in particular to a medium voltage cable with a good tensile effect.
Background
The medium-voltage power cable is a power cable of 35 kilovolts or below, and when the cable is installed, the cable is often hung, the cable is deformed due to the extrusion of strong wind weather and foreign objects, and the transmission effect is reduced after the cable is deformed.
Through retrieval, patent publication No. CN202404966U discloses a novel tensile cable, including cable inner core, inner sheath, steel band armor, nylon and oversheath layer, the inner sheath is evenly wrapped outside the cable inner core, the steel band armor is wrapped outside the inner sheath, the steel band armor is formed by spirally wrapping a steel band, the oversheath layer is wrapped outside the steel band armor, the nylon is wrapped by the oversheath layer, the nylon is composed of multiple strands of thin nylon, the total cross-sectional area of the nylon is equal to between one fifth and one twentieth of the cross-sectional area of the cable inner core, and the inside of the nylon has stress of longitudinal shrinkage. At the position that the cable hung perpendicularly, the tensile properties of nylon can bear the dead weight of cable, reduces the cable dead weight along with the destruction of accumulation of time to cable self, increases the durability at cable vertical hanging position for this novel tensile cable can be applied to the high drop vertical natural suspension of high-rise building and subway reliably for a long time.
When the circuit breaker is used, after the circuit breaker is subjected to stronger impact, the protection effect is lower, and in the using process, the on-off of part of the circuit is inconvenient to detect.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the medium-voltage cable which is high in protection effect and convenient for detecting the on-off of part of circuits and is good in tensile effect.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a medium-voltage cable with good tensile effect comprises a cable body and a supporting box, wherein the cable body penetrates through the middle of the supporting box, a protective layer is sleeved on the outer wall of the circumference of the cable body, a plurality of steel wire ropes are arranged on the inner wall of the protective layer, supporting rings are sleeved on the outer wall of the protective layer, one end of each steel wire rope penetrates through the middle of the protective layer, a sliding ring is sleeved on the outer portion of the protective layer, the inner wall of the sliding ring is fixedly connected with the opposite ends of the steel wire ropes, springs are sleeved on the outer portion of each steel wire rope, one end of each spring is fixedly connected with the outer wall of the circumference of the supporting ring, the other end of each spring is fixedly connected with the inner wall of the sliding ring, a conductive wire is fixedly connected with the middle of the outer side wall of the protective layer, a current inductor is fixedly connected with the outer wall of the circumference of the supporting ring, and the current inductor is electrically connected with the conductive wire, and a control panel is installed at the bottom end of the supporting box and is electrically connected with the current inductor.
Preferably, the middle part of the sliding ring is provided with a plurality of through holes which are respectively formed at the front end and the rear end, rotating shafts are respectively arranged in the through holes, the front end and the rear end of each rotating shaft are respectively connected with a ball in a spherical pair mode, the front end and the rear end of each through hole are respectively provided with a groove corresponding to each ball, and the outer side wall of each ball is in contact with the inner wall of the supporting box.
Preferably, the support box is made of POM materials.
Preferably, the top of supporting box is connected with the long slab through set screw, the left end fixedly connected with stop collar of long slab, the equal fixedly connected with wide board in front portion and the rear portion of stop collar, the left side of stop collar is provided with the blend stop, the right-hand member of blend stop and each the left end fixedly connected with of wide board, the middle part of stop collar is provided with the connecting axle, the top and the equal fixedly connected with spacing boss in bottom of connecting axle.
Preferably, the number of the positioning screws is two, the right part of the long plate is provided with a long hole corresponding to the positioning screw, the bottom end of each positioning screw penetrates through the long hole, and the bottom end of each positioning screw is in threaded connection with the top end of the support box.
Preferably, the barrier strip is a rubber strip, and the right end of the barrier strip is tightly attached to the outer wall of the circumference of the connecting shaft.
Preferably, the outer side wall of the current sensor is fixedly connected with a protection pad.
Preferably, the control panel is provided with a wireless transmission module.
(III) advantageous effects
Compared with the prior art, the invention provides the medium-voltage cable with good tensile effect, which has the following beneficial effects:
this effectual middling pressure cable of tensile, after receiving the extrusion and dragging through the cable, inoxidizing coating and wire rope strengthen the outside intensity of cable, and remove through wire rope pulling slip ring, slip ring extrusion spring, and then make the spring shrink, the partial impact force of elasticity buffering through the spring, and elasticity through the spring makes the cable reconversion, reduce the whole impact force that receives, reduce the condition of damage, and through circular telegram in the use to the guide wire, later through the induced-current of current sensor, handle the signal of current sensor through control panel, and then judge whether there is the circuit to damage, it is higher to reach the protecting effect, be convenient for detect the effect of the break-make of partial circuit.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of a support ring and a slide ring according to the present invention;
FIG. 3 is a schematic perspective view of the current sensor and the protection pad of the present invention;
FIG. 4 is a left side view schematically showing the structure of the rotary shaft and the balls in the present invention;
FIG. 5 is a schematic perspective view of the stop collar and the wide plate of the present invention;
FIG. 6 is a circuit diagram of the present invention.
In the figure: 1. a cable body; 2. a support box; 3. a protective layer; 4. a wire rope; 5. a support ring; 6. a slip ring; 7. a spring; 8. a conductive filament; 9. a current sensor; 10. a control panel; 11. a rotating shaft; 12. a ball bearing; 13. a set screw; 14. a long plate; 15. a limiting sleeve; 16. a wide plate; 17. blocking strips; 18. a connecting shaft; 19. a protective pad; 20. and a limiting boss.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Example (b):
referring to fig. 1-6, a medium voltage cable with good tensile strength comprises a cable body 1 and a supporting box 2, wherein the cable body 1 passes through the middle part of the supporting box 2, a protective layer 3 is sleeved on the circumferential outer wall of the cable body 1, a plurality of steel wire ropes 4 are arranged on the inner wall of the protective layer 3, a supporting ring 5 is sleeved on the outer wall of the protective layer 3, one end of each steel wire rope 4 passes through the middle part of the protective layer 3, a sliding ring 6 is sleeved on the outer part of the protective layer 3, the inner wall of the sliding ring 6 is fixedly connected with the opposite ends of the steel wire ropes 4, springs 7 are sleeved on the outer parts of the steel wire ropes 4, one end of each spring 7 is fixedly connected with the circumferential outer wall of the supporting ring 5, the other end of each spring 7 is fixedly connected with the inner wall of the sliding ring 6, a conductive wire 8 is fixedly connected with the middle part of the outer side wall of the protective layer 3, and a current inductor 9 is fixedly connected with the circumferential outer wall of the supporting ring 5, the outer side wall of the current sensor 9 is fixedly connected with a protective pad 19, the protective pad 19 is a rubber pad, the outside of the current sensor 9 is protected through the protective pad 19, the damage condition of the current sensor 9 is further reduced, the current sensor 9 is electrically connected with the conductive wire 8, a control panel 10 is installed at the bottom end of the supporting box 2, the control panel 10 is electrically connected with the current sensor 9, the middle part of the sliding ring 6 is provided with a plurality of through holes, the front end and the rear end of the sliding ring are both provided with a plurality of through holes, a rotating shaft 11 is arranged inside each through hole, the front end and the rear end of each rotating shaft 11 are both connected with balls 12 in a spherical pair mode, the front end and the rear end of each through hole are both provided with grooves corresponding to the balls 12, and the outer side wall of each ball 12 is in contact with the inner wall of the supporting box 2; the balls 12 rotate in the grooves to replace direct friction between the sliding ring 6 and the inner wall of the supporting box 2, so that the effect of reducing the abrasion of the inner wall of the supporting box 2 is achieved, the effect of further improving the use reliability is achieved, and the supporting box 2 is made of POM materials; through using the material of POM, improve the intensity and the insulating properties of supporting box 2, reduce the condition that supporting box 2 damaged and improve the safety in utilization.
Furthermore, the top end of the supporting box 2 is connected with a long plate 14 through a positioning screw 13, the left end of the long plate 14 is fixedly connected with a limiting sleeve 15, the front part and the rear part of the limiting sleeve 15 are fixedly connected with wide plates 16, the left side of the limiting sleeve 15 is provided with a barrier strip 17, the right end of the barrier strip 17 is fixedly connected with the left end of each wide plate 16, the middle part of the limiting sleeve 15 is provided with a connecting shaft 18, and the top end and the bottom end of the connecting shaft 18 are fixedly connected with limiting bosses 20; the transverse deflection of the supporting box 2 is reduced by matching the barrier strip 17, the connecting shaft 18 and the limiting sleeve 15, the moving range of the limiting sleeve 15 is limited by the limiting boss 20, the situation that the limiting sleeve 15 slides down is reduced, two positioning screws 13 are arranged, a long hole corresponding to each positioning screw 13 is arranged at the right part of the long plate 14, the bottom end of each positioning screw 13 penetrates through the long hole, and the bottom end of each positioning screw 13 is connected with the top end of the supporting box 2 through threads; the long plate 14 and the supporting box 2 are connected through the positioning screw 13, so that the position of the long plate 14 can be conveniently adjusted, the positioning screw 13 can be conveniently installed through the matching between the long strip hole and the positioning screw 13, the barrier strip 17 is a rubber strip, and the right end of the barrier strip 17 is tightly attached to the circumferential outer wall of the connecting shaft 18; due to the flexibility of the rubber strips, part of buffering force is reduced after the cable is impacted, and the control panel 10 is provided with a wireless transmission module which is a conventional component available in the market and has a function of transmitting signals remotely; the wireless transmission module transmits signals, so that a user can receive the signals at a far place conveniently, and the practicability is improved; receive the extrusion and drag through the cable after, the outside intensity of inoxidizing coating 3 and wire rope 4 reinforcing cable, and remove through 4 pulling slip rings 6 of wire rope, slip ring 6 extrusion spring 7, and then make the shrink of spring 7, partial impact force is cushioned through the elasticity of spring 7, and elasticity through spring 7 makes the cable reconversion, reduce the whole impact force that receives, reduce the condition of damage, and through circular telegram in 8 to the conducting wire in the use, later through current inductor 9 induced-current, handle current inductor 9's signal through control panel 10, and then judge whether there is the circuit to damage, it is higher to reach the guard effect, be convenient for detect the effect of the break-make of partial circuit.
In conclusion, the working principle and the working process of the medium voltage cable with the good tensile effect are that, when the medium voltage cable is used, after the cable is extruded and pulled, the protective layer 3 and the steel wire rope 4 reinforce the external strength of the cable, the sliding ring 6 is pulled by the steel wire rope 4 to move, the sliding ring 6 extrudes the spring 7, the spring 7 is contracted, part of impact force is buffered by the elastic force of the spring 7, the cable is restored to the original state by the elastic force of the spring 7, the overall impact force is reduced, the power is conducted in the conducting wire 8 in the using process, then the current is induced by the current inductor 9, the signal of the current inductor 9 is processed by the control panel 10, and whether the line is damaged is judged.
The control panel 10 is of a type JZ-20, the current inductor 9 is of a type MMI-1B, the control panel 10 and the current inductor 9 are all commercially and directly purchased devices which are well known to those skilled in the art, the control panel 10 and the current inductor 9 are only used here, structural and functional improvements are not performed on the control panel and the current inductor 9, detailed description is omitted here, the control panel 10 and the current inductor 9 are both provided with control switches matched with the control panel, and the installation positions of the control switches are selected according to actual use requirements, so that an operator can conveniently perform operation control.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an effectual medium voltage cable of tensile, includes cable body (1), its characterized in that: the cable comprises a cable body (1) and is characterized by further comprising a supporting box (2), wherein the cable body (1) penetrates through the middle of the supporting box (2), a protective layer (3) is sleeved on the outer wall of the circumference of the cable body (1), a plurality of steel wire ropes (4) are arranged on the inner wall of the protective layer (3), supporting rings (5) are sleeved on the outer wall of the protective layer (3), one end of each steel wire rope (4) penetrates through the middle of the protective layer (3), a sliding ring (6) is sleeved on the outer portion of the protective layer (3), the inner wall of the sliding ring (6) is fixedly connected with the opposite end of each steel wire rope (4), springs (7) are sleeved on the outer portion of each steel wire rope (4), one end of each spring (7) is fixedly connected with the outer wall of the circumference of the supporting ring (5), and the other end of each spring (7) is fixedly connected with the inner wall of the sliding ring (6), the middle part fixedly connected with conductive wire (8) of the lateral wall of inoxidizing coating (3), the circumference outer wall fixedly connected with current inductor (9) of support ring (5), current inductor (9) with conductive wire (8) electricity is connected, control panel (10) are installed to the bottom of support box (2), control panel (10) with current inductor (9) electricity is connected.
2. The medium voltage cable with good tensile effect according to claim 1, wherein: the middle part of slip ring (6) is provided with a plurality of front ends and rear end and has all seted up a plurality of through-holes, each the inside of through-hole all is provided with rotation axis (11), and the equal spherical pair in front end and the rear end of each rotation axis (11) is connected with ball (12), and the front end and the rear end of each through-hole all are provided with each the corresponding recess of ball (12), the lateral wall of ball (12) with the inner wall contact of supporting box (2).
3. The medium voltage cable with good tensile effect according to claim 2, wherein: the supporting box (2) is made of POM materials.
4. The medium voltage cable with good tensile effect according to claim 3, wherein: the top of supporting box (2) is connected with long slab (14) through set screw (13), the left end fixedly connected with stop collar (15) of long slab (14), the anterior and the equal fixedly connected with wide slab (16) in rear portion of stop collar (15), the left side of stop collar (15) is provided with blend stop (17), the right-hand member and each of blend stop (17) the left end fixed connection of wide slab (16), the middle part of stop collar (15) is provided with connecting axle (18), the top and the equal fixedly connected with spacing boss (20) in bottom of connecting axle (18).
5. The medium voltage cable with good tensile effect according to claim 4, wherein: the number of the positioning screws (13) is two, the right part of the long plate (14) is provided with long holes corresponding to the positioning screws (13), the bottom end of each positioning screw (13) penetrates through the long holes, and the bottom end of each positioning screw (13) is connected with the top end of the support box (2) through threads.
6. The medium voltage cable with good tensile effect according to claim 5, wherein: the barrier strip (17) is a rubber strip, and the right end of the barrier strip (17) is tightly attached to the circumferential outer wall of the connecting shaft (18).
7. The medium voltage cable with good tensile effect according to claim 6, wherein: the outer side wall of the current inductor (9) is fixedly connected with a protective pad (19).
8. The medium voltage cable with good tensile effect according to claim 7, wherein: the control panel (10) is provided with a wireless transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607044.2A CN112768127B (en) | 2020-12-30 | 2020-12-30 | Medium-voltage cable with good tensile effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607044.2A CN112768127B (en) | 2020-12-30 | 2020-12-30 | Medium-voltage cable with good tensile effect |
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| Publication Number | Publication Date |
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| CN112768127A CN112768127A (en) | 2021-05-07 |
| CN112768127B true CN112768127B (en) | 2022-06-03 |
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| CN202011607044.2A Active CN112768127B (en) | 2020-12-30 | 2020-12-30 | Medium-voltage cable with good tensile effect |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113507038B (en) * | 2021-07-15 | 2022-09-09 | 深圳市中科光芯半导体科技有限公司 | Semiconductor laser |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208368223U (en) * | 2018-06-11 | 2019-01-11 | 扬州市金阳光电缆有限公司 | A kind of numerically-controlled machine tool resistance to compression tension special cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9472320B2 (en) * | 2012-03-16 | 2016-10-18 | Wpfy, Inc. | Metal sheathed cable assembly with non-linear bonding/grounding conductor |
| CN208781604U (en) * | 2018-09-12 | 2019-04-23 | 深圳市泰来兴科技有限公司 | A kind of resistance to dragging photoelectric compound cable |
| CN209747183U (en) * | 2019-03-06 | 2019-12-06 | 惠安畅悦工业产品设计有限公司 | Tensile cable for coal mining machine |
| CN210896705U (en) * | 2019-11-07 | 2020-06-30 | 江西广通电缆有限公司 | High-strength aluminum core cable |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208368223U (en) * | 2018-06-11 | 2019-01-11 | 扬州市金阳光电缆有限公司 | A kind of numerically-controlled machine tool resistance to compression tension special cable |
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