A short-circuit-proof cable

Abstract

The present invention discloses an anti-short-circuit cable, which belongs to the field of cable technology and includes a main core and secondary cores distributed at equal angles about the axis of the main core. 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 are movable through a support sleeve coaxial with the main core, and the support sleeve is provided with an elastic mutual repulsion mechanism for preventing adjacent secondary cores and secondary cores from contacting the main core. This invention can not only separate a single secondary core in a separate space, avoiding contact between the secondary cores or between the secondary cores and the main core, and avoiding short circuits, but also can resist the Ampere force generated by the current flowing through the secondary core and the main core through the pressure-resistant through hole one and the pressure-resistant through hole two, thereby further preventing the secondary cores from approaching each other or between the secondary cores and the main core, which is conducive to further preventing short circuits in the cable.

Description

Technical Field

[0001] The present 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;

[0003] When using existing cables, there are still the following technical problems, such as:

[0004] When using cables, improper operation or harsh environments can easily damage the insulation structure. If the cable leads are twisted, causing the conductors inside to touch, this can cause a short circuit, making it impossible for the cable to transmit power, electrical signals, or optical signals.

[0005] In addition, when currents in the same direction flow through multiple conductors, the conductors will generate an Ampere force of mutual attraction, which can easily cause the multiple conductors to attract each other, thereby increasing the possibility of a short circuit in the cable.

[0006] Therefore, a short-circuit-proof cable is needed to solve the above problems. Summary of the Invention

[0007] The object of the present invention is to provide an anti-short-circuit cable to solve the problem in the background art that the existing cables do not have an anti-short-circuit function.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A short-circuit-proof cable comprises a main core and secondary cores distributed at equal angles about the axis of the main core, the outer sides of the main core and the secondary cores being both sheathed with insulating protective sleeves for insulation, the main core and the insulating protective sleeve sheathed on the outer side thereof being movably inserted into a support sleeve coaxial therewith, and the support sleeve being provided with an elastic mutual repulsion mechanism for preventing contact between adjacent secondary cores and between the secondary cores and the main core, the outer side of the overall outer side formed by the main core and the secondary core being sheathed with a limiting sleeve, and the inner side of the limiting sleeve being provided with a pressure-resistant barrier mechanism for further preventing contact between adjacent secondary cores and between the secondary cores and the main core, the outer side of the limiting sleeve being wrapped with a binding rope for limiting the limiting sleeve, and the outer side of the binding rope being sheathed with a wrapping layer, the outer side of the wrapping layer being sheathed with a shielding protective layer, and the outer side of the shielding protective layer being sheathed with an outer protective layer.

[0010] Preferably, the elastic mutual repulsion 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 running through both sides thereof at equal angles, and the raised strip is provided with one pressure-resistant through hole running through both sides thereof.

[0011] Preferably, the support sleeve and the raised strip are an integrated elastic structure, and the raised strip is spirally distributed on the outside of the support sleeve, so as to improve the tightness of the connection between the secondary core and the recessed groove.

[0012] Preferably, the cross-sections of the pressure-resistant through hole 1 and the pressure-resistant through hole 2 are both bar-shaped, and the pressure-resistant through hole 2 is arranged in a one-to-one correspondence with the recessed groove. The pressure-resistant through hole 1 and the pressure-resistant through hole 2 are also spiral-shaped, and the two ends of the pressure-resistant through hole 1 are respectively facing the adjacent recessed groove, and the two ends of the pressure-resistant through hole 2 are respectively facing the main line core and the raised strip.

[0013] Preferably, the binding rope is made of fiber to prevent the limiting sleeve from expanding outward.

[0014] Preferably, the pressure-resistant barrier mechanism includes pressure-reducing blocks and limit blocks distributed on the inner side of the limit sleeve, the number of groups of the pressure-reducing blocks and limit blocks is the same as the number of recessed grooves, and the pressure-reducing blocks and limit blocks are respectively arranged corresponding to the secondary wire core and the raised strip, each group of the pressure-reducing 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.

[0015] Preferably, the cross-section of the third pressure-resistant through hole is also bar-shaped, and the third pressure-resistant through hole is arranged toward the axis of the support sleeve, and the limit block is also an elastic structure.

[0016] Preferably, grooves are provided at the ends of the pressure reducing block and the limiting block facing the axis of the support sleeve, and the grooves provided on the pressure reducing block and the limiting block are respectively squeezed into contact 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.

[0017] Preferably, an elastic protrusion is provided in the recessed groove, so that the recessed groove and the protrusion provided 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.

[0018] 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 into a separate space, preventing the secondary cores from touching each other or the secondary cores and the main core, thereby preventing short circuits, but also the first and second pressure-resistant through holes can resist the Ampere force generated by the current flowing through the secondary core and the main core, thereby further preventing the secondary cores from approaching each other or the secondary cores and the main core, which is beneficial to further prevent short circuits in the cable:

[0019] 1. When the Ampere force causes the secondary cores to attract each other, or the secondary cores to attract the main core, the first and second pressure-resistant through-holes will be squeezed. When the first pressure-resistant through-hole is squeezed, the secondary cores on both sides of the pressure-resistant through-hole will move away from the main core, and when the second pressure-resistant through-hole is squeezed, the secondary cores on both sides of the pressure-resistant through-hole will move away from each other. As a result, the positions of the main core and the secondary core can be kept relatively stable through the first and second pressure-resistant through-holes, avoiding the secondary cores or the secondary cores to approach each other due to the Ampere force, thereby helping to prevent cable short circuits.

[0020] 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 into a separate space, preventing adjacent secondary cores from contacting when the cable is squeezed, thereby further preventing cable short circuits;

[0021] 3. The cable can be squeezed by 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 separated from each other, which is helpful to prevent the cable from short circuiting.

[0022] 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

[0023] Figure 1 It is a partial cross-sectional structural schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A;

[0025] Figure 3 This is a schematic diagram of the connection structure between the support sleeve and the secondary core of the present invention;

[0026] Figure 4 This is a schematic diagram of the main structure of the support sleeve of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between the secondary core and the limiting sleeve of the present invention;

[0028] Figure 6 This is a schematic diagram of the inner structure of the limiting sleeve of the present invention.

[0029] 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

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-6 , the present invention provides the following technical solutions:

[0032] 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 outside of the main core 2 and the secondary core 3 are both provided with an insulating protective sleeve 4 for insulation, the main core 2 and the insulating protective sleeve 4 provided on the outside thereof are movable through a support sleeve 1 coaxial with the main core 2, and the support sleeve 1 is provided with an elastic mutual repulsion 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 wrapped 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.

[0033] The elastic mutual repulsion mechanism includes a recessed groove 11 for installing the secondary core 3, a raised strip 12 is provided at an equal angle on the outside of the support sleeve 1, and the recessed groove 11 is provided between adjacent raised strips 12, and the support sleeve 1 is provided with a second pressure-resistant through hole 14 running through both sides thereof at an equal angle, and a pressure-resistant through hole 13 running through both sides thereof is provided on the raised strip 12. 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, which will cause the pressure-resistant through hole 13 and the pressure-resistant through hole 2 14 to be squeezed. After the pressure-resistant through hole 13 and the pressure-resistant through hole 2 14 are squeezed, the adjacent secondary cores 3 and the secondary core 3 and the main core 2 will move away from each other, so the pressure-resistant through hole 13 and the pressure-resistant through hole 2 14 can resist Ampere force, avoids 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 in a one-to-one correspondence 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 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.

[0034] Example 2: The anti-short-circuit cable in this example, based on Example 1, further prevents adjacent secondary cores 3 or secondary cores 3 from contacting the main core 2. Specifically, the inner side of the limiting sleeve 5 is provided with a pressure-resistant barrier mechanism that further prevents adjacent secondary cores 3 and secondary cores 3 from contacting the main core 2.

[0035] The pressure-resistant barrier mechanism includes a pressure reducing block 10 and a limit block 15 distributed on the inner side of the limit sleeve 5. The number of groups of the pressure reducing blocks 10 and the limit blocks 15 is the same as the number of the recessed grooves 11, and the pressure reducing 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 reducing blocks 10 and each group of limit blocks 15 are spirally distributed, and the limit blocks 15 are provided with three pressure-resistant through holes 16 running through both sides thereof. When in use, the pressure reducing blocks 10 and the limit blocks 15 can separate a single secondary core 3 in a separate area. Even if the cable is squeezed, adjacent secondary cores 3 will not touch each other, which can facilitate further prevention. The cable is short-circuited, and the cross-section of the pressure-resistant through hole three 16 is also bar-shaped, and the pressure-resistant through hole three 16 is arranged toward the axis of the support sleeve 1. 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 both provided with grooves. The grooves provided on the pressure reducing block 10 and the limit block 15 are respectively squeezed and contacted with the insulating protective sleeve 4 on the outside of the secondary core 3 and the raised strip 12, so as to facilitate the limitation of the secondary core 3 and the raised strip 12. An elastic protrusion is provided in the recessed groove 11, so that the recessed groove 11 and the protrusion provided 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.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 about 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 an insulating protective sleeve (4) for insulation. The main core (2) and the insulating protective sleeve (4) provided on the outer side thereof are movable through the support sleeve (1) coaxial therewith, and the support sleeve (1) is provided with an elastic mutual exclusion mechanism for preventing adjacent secondary cores (3) and the secondary cores (3) and the main core (2) from contacting each other. The elastic mutual exclusion mechanism includes a recessed groove (11) for installing the secondary core (3). The outer side of the support sleeve (1) is provided with raised strips (12) at equal angles, and the recessed grooves (11) are 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. The raised strip (12) is provided with one pressure-resistant through hole (13) extending through both sides thereof. The cross-sections of the one pressure-resistant through hole (13) and the two pressure-resistant through holes (14) are both bar-shaped, and the pressure-resistant through holes are The second pressure-resistant through hole (14) is arranged in a one-to-one correspondence with the recessed groove (11), and the first pressure-resistant through hole (13) and the second pressure-resistant through hole (14) are also spiral-shaped. The two ends of the first pressure-resistant through hole (13) are respectively oriented toward the adjacent recessed groove (11), and the two ends of the second pressure-resistant through hole (14) are respectively oriented toward the main core (2) and the raised strip (12). The outer side of the overall outer sleeve 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 the adjacent secondary cores (3) and the secondary cores (3) from contacting the main core (2). The outer side of the limiting sleeve (5) is wrapped with a binding rope (6) for limiting the limiting sleeve (5), and the outer side of the binding rope (6) is provided with a wrapping layer (7), the outer side of the wrapping layer (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 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 core (3) and the recessed groove (11).

3. The short-circuit-proof cable according to claim 2, characterized in that: The material of the binding rope (6) is fiber, which prevents the limiting sleeve (5) from expanding outwards.

4. The short-circuit-proof cable according to claim 3, characterized in that: The pressure-resistant barrier mechanism includes a pressure reducing block (10) and a limiting block (15) distributed on the inner side of the limiting sleeve (5), the number of groups of the pressure reducing blocks (10) and the limiting blocks (15) is the same as the number of the recessed grooves (11), and the pressure reducing blocks (10) and the limiting blocks (15) are respectively arranged corresponding to the secondary wire core (3) and the raised strip (12), each group of the pressure reducing blocks (10) and each group of the limiting blocks (15) are distributed in a spiral shape, and the limiting blocks (15) are provided with three pressure-resistant through holes (16) running through both sides thereof.

5. The short-circuit-proof cable according to claim 4, characterized in that: The cross section of the third pressure-resistant through hole (16) is also strip-shaped, and the third pressure-resistant through hole (16) is arranged toward the axis of the support sleeve (1), and the limit block (15) is also an elastic structure.

6. The short-circuit-proof cable according to claim 5, 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) outside the secondary core (3) and the raised strip (12) so as to be used for limiting the secondary core (3) and the raised strip (12).

7. The short-circuit-proof cable according to claim 6, characterized in that: An elastic protrusion is provided in the recessed groove (11), so that the recessed groove (11) and the protrusion provided 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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