Anti-short-circuit cable

Abstract

The invention discloses an anti-short-circuit cable, and belongs to the technical field of cables, the anti-short-circuit cable comprises a main wire core and secondary wire cores distributed at equal angles relative to the axis of the main wire core, and the outer sides of the main wire core and the secondary wire cores are sleeved with insulating protective sleeves for insulation; the main wire core and the insulation protection sleeve sleeved on the outer side of the main wire core movably penetrate through the supporting sleeve which is coaxial with the main wire core, and the supporting sleeve is provided with an elastic mutual exclusion mechanism which is used for preventing adjacent secondary wire cores from contacting and preventing the secondary wire cores from contacting with the main wire core. Single secondary wire cores can be separated in independent spaces, the secondary wire cores or the secondary wire cores and the main wire cores are prevented from touching one another, short circuit is avoided, ampere force generated when current flows through the secondary wire cores and the main wire cores can be resisted through the first pressure-resistant through holes and the second pressure-resistant through holes, and the current can be prevented from flowing through the secondary wire cores and the main wire cores. Therefore, the secondary wire cores or the secondary wire cores and the main wire cores are further prevented from getting close to each other, and short circuit of the cable is further prevented.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to an anti-short-circuit cable. Background Art

[0002] A cable is an electrical device used to transmit electrical energy, electrical signals or optical signals, usually consisting of one or more mutually insulated conductors and a protective structure; When using existing cables, there are still the following technical problems, such as: When the cable is in use, due to improper operation by the staff or the harsh environment in which the cable is used, the insulation protection structure is easily damaged. After that, if the cable outlet is twisted, the conductors in the cable will touch, which will cause the cable to short-circuit, and then the cable will be unable to transmit power, electrical signals or optical signals. In addition, when currents in the same direction flow through multiple conductors, the conductors will generate an Ampere force of attraction, which can easily cause the multiple conductors to attract each other, thereby increasing the possibility of a short circuit in the cable; Therefore, a short-circuit-proof cable is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide an anti-short circuit cable to solve the problem in the above background technology that the existing cables do not have the anti-short circuit function.

[0004] To achieve the above object, the present invention provides the following technical solutions: A short-circuit proof cable comprises a main core and secondary cores which are distributed at equal angles with respect to the axis of the main core, wherein the outer sides of the main core and the secondary cores are both sheathed with insulating protective sleeves for insulation, the main core and the insulating protective sleeve sheathed on the outer side thereof movably penetrate a support sleeve coaxial therewith, and the support sleeve is provided with an elastic mutual repulsion mechanism for preventing adjacent secondary cores and the secondary cores from contacting the main core, the outer side of the whole formed by the main core and the secondary core is sheathed with a limiting sleeve, and the inner side of the limiting sleeve is provided with a compressive barrier mechanism for further preventing adjacent secondary cores and the secondary cores from contacting the main core, the outer side of the limiting sleeve is wound with a binding rope for limiting the limiting sleeve, and the outer side of the binding rope is sheathed with a wrapping layer, the outer side of the wrapping layer is sheathed with a shielding protective layer, and the outer side of the shielding protective layer is sheathed with an outer protective layer.

[0005] Preferably, the elastic mutual exclusion mechanism includes a recessed groove for installing the secondary wire core, the outer side of the support sleeve is provided with raised strips at equal angles, and the recessed groove is provided between adjacent raised strips, the support sleeve is provided with two pressure-resistant through holes extending through both sides thereof at equal angles, and the raised strip is provided with one pressure-resistant through hole extending through both sides thereof.

[0006] Preferably, the support sleeve and the raised strip are an integrated elastic structure, and the raised strip is distributed in a spiral shape on the outside of the support sleeve, so as to improve the tightness of the connection between the secondary core and the recessed groove.

[0007] Preferably, the cross-sections of the pressure-resistant through hole one and the pressure-resistant through hole two are both bar-shaped, and the pressure-resistant through hole two is arranged in a one-to-one correspondence with the recessed groove. The pressure-resistant through hole one and the pressure-resistant through hole two are also spiral-shaped, and the two ends of the pressure-resistant through hole one are respectively facing the adjacent recessed groove, and the two ends of the pressure-resistant through hole two are respectively facing the main line core and the raised strip.

[0008] Preferably, the binding rope is made of fiber to prevent the limiting sleeve from expanding outwards.

[0009] Preferably, the pressure-resistant barrier mechanism includes pressure relief blocks and limit blocks distributed on the inner side of the limit sleeve, the number of groups of the pressure relief blocks and limit blocks is the same as the number of recessed grooves, and the pressure relief blocks and limit blocks are respectively arranged corresponding to the secondary wire core and the raised strips, each group of the pressure relief blocks and each group of limit blocks are distributed in a spiral shape, and the limit blocks are provided with three pressure-resistant through holes running through both sides thereof.

[0010] Preferably, the cross-section of the pressure-resistant through hole three is also strip-shaped, and the pressure-resistant through hole three is arranged toward the axis of the support sleeve, and the limit block is also an elastic structure.

[0011] Preferably, grooves are provided at the ends of the pressure reducing block and the limit block facing the axis of the support sleeve, and the grooves provided on the pressure reducing block and the limit block are respectively extruded and contacted with the insulating protective sleeve and the raised strip on the outside of the secondary core, so as to facilitate the limitation of the secondary core and the raised strip.

[0012] Preferably, an elastic protrusion is arranged in the recessed groove, so that the recessed groove and the protrusion arranged therein form a W shape, which is used to improve the stability of the elastic structure formed by the support sleeve and the protrusion strip.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the short-circuit-proof cable can not only separate a single secondary core in a separate space to prevent the secondary cores from touching each other or the secondary cores from touching the main cores, and prevent short circuits, but also resist the Ampere force generated by the current flowing through the secondary cores and the main cores through the first and second pressure-resistant through holes, thereby further preventing the secondary cores from approaching each other or the secondary cores from approaching the main cores, which is beneficial to further prevent short circuits in the cable: 1. When the Ampere force causes the secondary cores to attract each other or the secondary cores to the main core, the pressure-resistant through hole 1 and the pressure-resistant through hole 2 will be squeezed. When the pressure-resistant through hole 1 is squeezed, the secondary cores on both sides of the pressure-resistant through hole will move away from the main core, and when the pressure-resistant through hole 2 is squeezed, the secondary cores on both sides of the pressure-resistant through hole will move away from each other. Thus, the positions of the main core and the secondary core can be relatively stable through the pressure-resistant through hole 1 and the pressure-resistant through hole 2, avoiding the secondary cores or the secondary cores to move close to each other due to the Ampere force, which helps to prevent the cable from short-circuiting. 2. Through the decompression block and the limit block, in conjunction with the recessed groove and the raised strip, a single secondary core can be separated in a separate space to prevent the adjacent secondary cores from contacting when the cable is squeezed, thereby further preventing the cable from short circuiting; 3. The cable can be squeezed through the pressure-resistant through hole 3. When the pressure-resistant through hole 3 is squeezed, the secondary cores on both sides of the pressure-resistant through hole 3 are squeezed due to the deformation of the limit block, so that the secondary cores on both sides of the pressure-resistant through hole 3 are away from each other, which is helpful to prevent the cable from short circuiting; 4. Providing the first and second pressure-resistant through holes can also reduce the use of raw materials for the support sleeve, which is beneficial to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A; Figure 3 This is a schematic diagram of the connection structure between the support sleeve and the secondary core of the present invention; Figure 4 This is a schematic diagram of the main structure of the support sleeve of the present invention; Figure 5 It is a schematic diagram of the connection structure between the secondary core and the limiting sleeve of the present invention; Figure 6 It is a schematic diagram of the inner structure of the limiting sleeve of the present invention.

[0015] In the figure: 1. Support sleeve; 2. Main core; 3. Secondary core; 4. Insulation protection sleeve; 5. Limit sleeve; 6. Binding rope; 7. Wrapping layer; 8. Shielding protection layer; 9. Outer protection layer; 10. Pressure relief block; 11. Recessed groove; 12. Raised strip; 13. Pressure-resistant through hole one; 14. Pressure-resistant through hole two; 15. Limit block; 16. Pressure-resistant through hole three. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 6 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that after the insulation protection structure in the cable is damaged, the cable is squeezed and the adjacent conductors are in contact, so that the cable short-circuit occurs, the following technical solution is provided, specifically, an anti-short-circuit cable, including a main core 2 and secondary cores 3 distributed at equal angles about the axis of the main core 2, the outer sides of the main core 2 and the secondary core 3 are both provided with insulating protective sleeves 4 for insulation, the main core 2 and the insulating protective sleeve 4 provided on the outer side thereof movably penetrate a support sleeve 1 coaxial with it, and the support sleeve 1 is provided with an elastic repulsive mechanism for preventing adjacent secondary cores 3 and the secondary core 3 from contacting the main core 2, the outer side of the whole formed by the main core 2 and the secondary core 3 is provided with a limiting sleeve 5, the outer side of the limiting sleeve 5 is wound with a binding rope 6 for limiting the limiting sleeve 5, and the outer side of the binding rope 6 is provided with a sheath 7, the outer side of the sheath 7 is provided with a shielding protective layer 8, and the outer side of the shielding protective layer 8 is provided with an outer protective layer 9.

[0018] The elastic mutual repulsion mechanism includes a recessed groove 11 for installing the secondary core 3, a raised strip 12 is arranged at an equal angle on the outer side of the support sleeve 1, and the recessed groove 11 is arranged between adjacent raised strips 12, and the support sleeve 1 is provided with pressure-resistant through holes 14 penetrating both sides thereof at equal angles, and the raised strip 12 is provided with a pressure-resistant through hole 13 penetrating both sides thereof. When in use, the Ampere force will cause the adjacent secondary cores 3 and the secondary cores 3 and the main core 2 to approach each other, thereby causing the pressure-resistant through hole 1 13 and the pressure-resistant through hole 2 14 to be squeezed. After the pressure-resistant through hole 1 13 and the pressure-resistant through hole 2 14 are squeezed, the adjacent secondary cores 3 and the secondary cores 3 and the main core 2 will move away from each other, so the pressure-resistant through hole 1 13 and the pressure-resistant through hole 2 14 can resist Ampere force, avoiding contact between adjacent secondary cores 3 or contact between secondary cores 3 and main core 2, helps to prevent cable short circuit, the support sleeve 1 and the raised strip 12 are an integrated elastic structure, and the raised strip 12 is spirally distributed on the outside of the support sleeve 1, which is used to improve the tightness of the connection between the secondary core 3 and the recessed groove 11, the cross-section of the pressure-resistant through hole 1 13 and the pressure-resistant through hole 2 14 are both strip-shaped, and the pressure-resistant through hole 2 14 is arranged one-to-one with the recessed groove 11, the pressure-resistant through hole 1 13 and the pressure-resistant through hole 2 14 are also spiral-shaped, the two ends of the pressure-resistant through hole 1 13 are respectively facing the adjacent recessed groove 11, and the two ends of the pressure-resistant through hole 2 14 are respectively facing the main core 2 and the raised strip 12, the material of the binding rope 6 is fiber, which prevents the limit sleeve 5 from expanding outward.

[0019] Embodiment 2: The anti-short-circuit cable in this embodiment, based on Embodiment 1, further prevents adjacent secondary cores 3 or secondary cores 3 from contacting the main core 2. Specifically, a pressure-resistant barrier mechanism is provided on the inner side of the limiting sleeve 5 to further prevent adjacent secondary cores 3 and secondary cores 3 from contacting the main core 2.

[0020] The pressure-resistant barrier mechanism includes a pressure relief block 10 and a limit block 15 distributed on the inner side of the limit sleeve 5. The number of groups of the pressure relief blocks 10 and the limit blocks 15 is the same as the number of the recessed grooves 11, and the pressure relief blocks 10 and the limit blocks 15 are respectively arranged corresponding to the secondary cores 3 and the raised strips 12. Each group of pressure relief blocks 10 and each group of limit blocks 15 are distributed in a spiral shape, and the limit blocks 15 are provided with three pressure-resistant through holes 16 running through both sides thereof. When in use, the pressure relief blocks 10 and the limit blocks 15 can separate a single secondary core 3 in a separate area, and even if the cable is squeezed, adjacent secondary cores 3 will not touch each other, thereby facilitating further prevention. The cable is short-circuited, and the cross-section of the pressure-resistant through hole three 16 is also strip-shaped, and the pressure-resistant through hole three 16 is arranged toward the axis of the support sleeve 1, and the limit block 15 is also an elastic structure. The ends of the pressure reducing block 10 and the limit block 15 facing the axis of the support sleeve 1 are provided with grooves, and the grooves arranged on the pressure reducing block 10 and the limit block 15 are respectively squeezed and contacted with the insulating protection sleeve 4 on the outside of the secondary core 3 and the raised strip 12, so as to limit the secondary core 3 and the raised strip 12, and an elastic protrusion is arranged in the recessed groove 11, so that the recessed groove 11 and the protrusion arranged therein form a W shape, which is used to improve the stability of the elastic structure formed by the support sleeve 1 and the raised strip 12.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A short-circuit-proof cable, comprising a main core (2) and secondary cores (3) distributed at equal angles with respect to the axis of the main core (2), characterized in that: The outer sides of the main core (2) and the secondary core (3) are both provided with insulating protective sleeves (4) for insulation. The main core (2) and the insulating protective sleeve (4) provided on the outer side thereof are movably inserted through a coaxial support sleeve (1) therewith, and the support sleeve (1) is provided with an elastic mutual repulsion mechanism for preventing adjacent secondary cores (3) and the secondary cores (3) from contacting the main core (2). The outer side of the whole formed by the main core (2) and the secondary core (3) is provided with a limiting sleeve (5), and the inner side of the limiting sleeve (5) is provided with a pressure-resistant barrier mechanism for further preventing adjacent secondary cores (3) and the secondary cores (3) from contacting the main core (2). The outer side of the limiting sleeve (5) is wound with a binding rope (6) for limiting the limiting sleeve (5), and the outer side of the binding rope (6) is provided with a sheath (7), the outer side of the sheath (7) is provided with a shielding protective layer (8), and the outer side of the shielding protective layer (8) is provided with an outer protective layer (9).

2. The short-circuit-proof cable according to claim 1, characterized in that: The elastic mutual exclusion mechanism comprises a recessed groove (11) for mounting a secondary wire core (3); the outer side of the support sleeve (1) is provided with raised strips (12) at equal angles, and the recessed groove (11) is provided between adjacent raised strips (12); the support sleeve (1) is provided with two pressure-resistant through holes (14) extending through both sides thereof at equal angles; and the raised strip (12) is provided with one pressure-resistant through hole (13) extending through both sides thereof.

3. The short-circuit-proof cable according to claim 2, characterized in that: The support sleeve (1) and the raised strip (12) are an integrated elastic structure, and the raised strip (12) is distributed in a spiral shape on the outside of the support sleeve (1) to improve the tightness of the connection between the secondary wire core (3) and the recessed groove (11).

4. The short-circuit-proof cable according to claim 3, characterized in that: The cross-sections of the pressure-resistant through hole one (13) and the pressure-resistant through hole two (14) are both strip-shaped, and the pressure-resistant through hole two (14) is arranged in a one-to-one correspondence with the recessed groove (11). The pressure-resistant through hole one (13) and the pressure-resistant through hole two (14) are also both spiral-shaped, and the two ends of the pressure-resistant through hole one (13) are respectively oriented toward the adjacent recessed groove (11), and the two ends of the pressure-resistant through hole two (14) are respectively oriented toward the main line core (2) and the raised strip (12).

5. The short-circuit-proof cable according to claim 4, characterized in that: The material of the binding rope (6) is fiber, which prevents the limiting sleeve (5) from expanding outwards.

6. The short-circuit-proof cable according to claim 5, characterized in that: The pressure-resistant barrier mechanism comprises pressure relief blocks (10) and limit blocks (15) distributed inside the limit sleeve (5); the number of groups of the pressure relief blocks (10) and limit blocks (15) is the same as the number of the recessed grooves (11); the pressure relief blocks (10) and limit blocks (15) are respectively arranged corresponding to the secondary wire core (3) and the raised strip (12); each group of the pressure relief blocks (10) and each group of limit blocks (15) are distributed in a spiral shape; and the limit blocks (15) are provided with three pressure-resistant through holes (16) penetrating both sides thereof.

7. The short-circuit-proof cable according to claim 6, characterized in that: The cross section of the pressure-resistant through hole three (16) is also strip-shaped, and the pressure-resistant through hole three (16) is arranged toward the axis of the support sleeve (1), and the limit block (15) is also an elastic structure.

8. The short-circuit-proof cable according to claim 7, characterized in that: The ends of the pressure reducing block (10) and the limiting block (15) facing the axis of the support sleeve (1) are both provided with grooves, and the grooves provided on the pressure reducing block (10) and the limiting block (15) are respectively pressed and contacted with the insulating protective sleeve (4) and the raised strip (12) outside the secondary core (3) so as to limit the secondary core (3) and the raised strip (12).

9. The short-circuit-proof cable according to claim 8, characterized in that: An elastic protrusion is arranged in the recessed groove (11), so that the recessed groove (11) and the protrusion arranged therein form a W shape, which is used to improve the stability of the elastic structure formed by the support sleeve (1) and the protrusion strip (12).

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