A cable with flame retardant structure

Abstract

The present invention relates to the field of cable technology, and proposes a cable with a flame-retardant structure, comprising a protective layer and a conductor, a connecting cap, an electrical connection seat, and a rotating cylinder. One side of the conductor extends into the connecting cap, a metal plug plate is provided in the connecting cap, the conductor is electrically connected to the metal plug plate, the metal plug plate extends into the electrical connection seat, the metal plug plate is electrically connected to the electrical connection seat, an insulating cover is provided on the top of the electrical connection seat, the rotating cylinder is fixedly connected to one side of the protective layer by a mounting piece, a rotating and flipping assembly is provided on the rotating cylinder and the side of the protective layer close to the connecting cap, and a tension fitting assembly is provided between the rotating cylinder and the area of ​​the protective layer located between the mounting piece and the rotating and flipping assembly. The above technical solution solves the problem in the prior art that when a fire occurs in a cable during use, the fire is easily spread on the cable, causing the fire to cause greater damage.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cable with a flame retardant structure. Background Art

[0002] Cables are common components used in the prior art for transmitting electrical energy. Cables are usually composed of a protective layer and multiple metal conductors covered with an insulating layer. During the long-term use of cables, cable outlet fires may occur due to various factors. For example, during the long-term overload operation of the cable, the cable itself is damaged. Also, when the cable is electrically connected to the power equipment, if there is a poor contact between the cable and the power equipment, the cable is also prone to fire. Therefore, during the actual use of the cable, it is necessary to strictly ensure the safety of the cable to avoid cable fires. When the cable catches fire, the spread of the fire must be flame-retarded to reduce the damage to the cable caused by the fire.

[0003] During the production process of some cables in the existing technology, special flame-retardant fillers and flame-retardant protective layers are generally used as flame-retardant structures to make the cables have certain flame retardancy. However, such cables are generally used in high-temperature areas or areas with high fire risks. Ordinary cables generally do not have high flame retardancy. Therefore, when a fire problem occurs during the use of the cable, the open flame will spread on the cable, causing damage to the entire cable. When the fire spreads through the cable, it causes the fire to spread, increasing the destructiveness of the fire and causing more cable losses. Summary of the Invention

[0004] The present invention provides a cable with a flame retardant structure, which solves the problem in the prior art that when a fire occurs during use of the cable, the fire is likely to spread on the cable, causing greater damage.

[0005] The technical solution of the present invention is as follows: a cable with a flame retardant structure, comprising a protective layer and a conductor, wherein the conductor is arranged in the protective layer, and further comprising:

[0006] A connecting cap, one side of the conductor extends into the connecting cap, a metal insert is provided in the connecting cap, and the conductor is electrically connected to the metal insert;

[0007] An electrical connection seat, wherein the metal plug plate extends into the electrical connection seat, the metal plug plate is electrically connected to the electrical connection seat, and an insulating cover is provided on the top of the electrical connection seat;

[0008] A rotating cylinder is fixedly connected to one side of the protective layer through a mounting piece, a rotating and flipping assembly is provided on the side of the rotating cylinder and the protective layer close to the connecting cap, a tension fitting assembly is provided between the rotating cylinder and the protective layer, and the tension fitting assembly is provided between the mounting piece and the rotating and flipping assembly.

[0009] In order to achieve electrical connection between the conductor and the metal plug plate, it further includes an insertion seat, a conductive layer and an extrusion seat, the insertion seat is arranged in the connection cap, the conductor is inserted into the insertion seat, the metal plug plate is fixedly connected to the insertion seat, the connection cap is made of plastic insulating material, the conductive layer is provided on the inner wall of the connection cap, a supporting seat is provided on the inner arc surface of the conductive layer, the extrusion seat is also made of plastic insulating material, a position adjustment structure is provided between the extrusion seat and the connection cap, a metal extrusion layer is provided on the side of the extrusion seat close to the conductor, the conductor is located between the supporting seat and the metal extrusion layer, and the metal extrusion layer and the conductive layer are both electrically connected to the insertion seat.

[0010] In order to enable the extrusion seat to fix the conductor in the connecting cap, the position adjustment structure further includes an installation cover and a sliding member. The installation cover is connected to the connecting cap, and an adjusting screw is threadedly connected to the installation cover. The adjusting screw is rotatably connected to the extrusion seat at one end close to the extrusion seat, and the extrusion seat is slidably connected to the installation cover through the sliding member.

[0011] In order to allow the metal plug plate to be detached from the electrical connection seat in the event of a fire, it further includes a connecting cable and a plastic rod. The inner wall of the electrical connection seat is provided with an electrical connection groove, the outer side of the electrical connection seat is made of plastic insulating material, the metal plug plate is electrically connected to the electrical connection groove, the electrical connection groove is electrically connected to the connecting cable, and a plurality of plastic rods are provided between the insulating cover and the electrical connection seat.

[0012] In order to generate a flipping force for the conductor and the protective layer, so as to facilitate the removal of the metal plug plate between the electrical connection seats, based on this solution, the rotating flipping assembly includes a rotating shaft and a connecting piece, the rotating shaft is rotatably connected to the rotating cylinder, a coil spring is provided between the inner wall of the rotating cylinder and the rotating shaft, the connecting piece is fixedly connected to the rotating shaft, a sliding ring is slidably provided on the protective layer, and the sliding ring is fixedly connected to the connecting piece.

[0013] In order to install the rotating cylinder, based on the present solution, a mounting plate is further included, wherein a plurality of mounting screw holes are provided on the mounting plate, and a connecting rod is provided between the mounting plate and the rotating cylinder.

[0014] In order to enable the protective layer and the conductor to be flipped smoothly, on the basis of this solution, the tension matching assembly further includes a tension frame and an elastic bending rod, the tension frame is slidably arranged on the outside of the protective layer, and the elastic bending rod is arranged between the tension frame and the rotating cylinder.

[0015] The working principle and beneficial effects of the present invention are:

[0016] 1. In the present invention, when it is necessary to electrically connect the conductor to the power component, the connecting cable is first electrically connected to the power component, and the electrical connection seat is installed on the power component. Glue can be used to fix the electrical connection seat and the power component. Then, the metal portion of the conductor is inserted into the insertion seat, and the extrusion seat is moved to fix the metal portion of the conductor between the metal extrusion layer and the support seat. At this time, the conductor and the protective layer remain parallel, and the rotating shaft rotates within the rotating cylinder. The coil spring generates a torsional force on the rotating shaft. The metal insert plate is inserted into the electrical connection seat, and the rotating cylinder is installed in a corresponding position through the mounting plate, so that the rotating cylinder and the protective layer are both fixed. If a fire problem occurs during the use of the power component, the temperature generated by the fire will melt the plastic rod. At this time, under the torsional force of the coil spring, the rotating shaft drives the connector, the sliding ring, the protective layer, the connection cap and other components to flip along the center point of the rotating shaft, and the metal insert plate is ejected from the electrical connection seat, thereby releasing the electrical connection between the metal insert plate and the electrical connection seat.

[0017] 2. Therefore, when a fire occurs in an electrical component, the cable with a flame-retardant structure can cut off the connection between the conductor and the electrical component, reducing the risk of fire spreading. The position of the conductor and the protective layer after the connection is cut off can be fixed, so that the conductor can be quickly installed and used when the electrical component is replaced later. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of a partial cross-section of the present invention;

[0021] Figure 3 It is a partial cross-sectional structural diagram of the connection cap, metal insert plate, conductive layer and extrusion seat in the present invention;

[0022] Figure 4 It is a schematic diagram of a partial cross-section of the structure of the connection cap, the conductive layer, the supporting seat and the extrusion seat in the present invention;

[0023] Figure 5 It is a partial cross-sectional structural diagram of the electrical connection seat, the insulating cover, the plastic rod and the electrical connection slot in the present invention;

[0024] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 7 It is a partial cross-sectional structural diagram of the cooperation among the rotating cylinder, the rotating shaft, the connecting member and the sliding ring in the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the rotating cylinder, rotating shaft, connecting member and tension frame in the present invention;

[0027] Figure 9 It is a schematic structural diagram of a partial cross-section of the cooperation among the rotating cylinder, the rotating shaft and the coil spring in the present invention.

[0028] In the figure: 1. Protective layer; 2. Conductor; 3. Connecting cap; 4. Metal plug plate; 5. Electrical connection seat; 6. Insulating cover; 7. Rotating cylinder; 8. Insertion seat; 9. Conductive layer; 10. Support seat; 11. Extrusion seat; 12. Metal extrusion layer; 13. Mounting cover; 14. Adjusting screw; 15. Sliding part; 16. Connecting cable; 17. Plastic rod; 18. Rotating shaft; 19. Coil spring; 20. Connecting part; 21. Sliding ring; 22. Mounting plate; 23. Connecting rod; 24. Tension frame; 25. Elastic bending rod; 26. Copper clip; 27. Mounting part; 28. Mounting ring; 29. ​​Electrical connection trough. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 any creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 9 As shown, this embodiment provides a cable with a flame-retardant structure, including a protective layer 1 and a conductor 2. The conductor 2 is arranged in the protective layer 1. The protective layer 1 and the conductor 2 are both basic components of cables in the prior art. The conductor 2 refers to a metal wire used to transmit electrical energy. The protective layer 1 is used to protect the conductor 2. The protective layer 1 and the conductor 2 can be used to electrically connect two electrical components.

[0031] The invention also includes a connecting cap 3, one side of the conductor 2 extends into the connecting cap 3, a metal plug plate 4 is provided in the connecting cap 3, the conductor 2 is electrically connected to the metal plug plate 4, and an insertion seat 8, a conductive layer 9 and an extrusion seat 11, the insertion seat 8 is provided in the connecting cap 3, the conductor 2 is inserted into the insertion seat 8, the metal plug plate 4 is fixedly connected to the insertion seat 8, the connecting cap 3 is made of plastic insulating material, a conductive layer 9 is provided on the inner wall of the connecting cap 3, a supporting seat 10 is provided on the inner arc surface of the conductive layer 9, the supporting seat 10 is made of metal conductive material, the extrusion seat 11 is also made of plastic insulating material, a position adjustment structure is provided between the extrusion seat 11 and the connecting cap 3, a metal extrusion layer 12 is provided on the side of the extrusion seat 11 close to the conductor 2, the conductor 2 is located between the supporting seat 10 and the metal extrusion layer 12, the metal extrusion layer 12 and the conductive layer 9 are both electrically connected to the insertion seat 8, when a plurality of copper wires are woven together into a conductor 2 When in use, in order to prevent the leakage problem caused by loose copper wire when the copper wire is electrically connected to the power equipment, the present application inserts the metal part of the conductor 2 into the insertion seat 8, so that the conductor 2, the insertion seat 8 and the metal plug plate 4 are electrically connected. Then, in order to prevent the power transmission operation of the conductor 2 from being affected, the conductor 2 is moved into the connection cap 3, and the bottom of the metal part of the conductor 2 is brought into contact with the supporting seat 10, and the extrusion seat 11 is moved toward the direction of the conductor 2, so that the metal extrusion layer 12 fixes the conductor 2 and fixes the conductor 2 between the supporting seat 10 and the metal extrusion layer 12. Because of the electrical connection between the supporting seat 10, the conductive layer 9 and the metal extrusion layer 12 and the insertion seat 8, the conductor 2 can fully perform the power transmission operation, and because of the plastic insulating material characteristics of the extrusion seat 11 and the connection cap 3, the leakage problem of the connection cap 3 can also be avoided.

[0032] The position adjustment structure includes an installation cover 13 and a sliding member 15. The installation cover 13 is connected to the connecting cap 3. An adjusting screw 14 is threadedly connected to the installation cover 13. The adjusting screw 14 is rotatably connected to the extrusion seat 11 at one end close to the extrusion seat 11. The extrusion seat 11 is slidably connected to the installation cover 13 through the sliding member 15. A sliding groove is provided on the inner wall of the installation cover 13. The sliding member 15 is slidably connected to the sliding groove on the same side. When it is necessary to move the extrusion seat 11 toward the conductor 2 in the connecting cap 3, the adjusting screw 14 is rotated to move the adjusting screw 14 toward the connecting cap 3, and the extrusion seat 11 and the sliding member 15 are moved, so that the metal extrusion layer 12 is finally in contact with the conductor 2, and the conductor 2 is clamped between the metal extrusion layer 12 and the supporting seat 10.

[0033] like Figures 1 to 6As shown, the metal plug plate 4 extends into the electrical connection seat 5, the metal plug plate 4 is electrically connected to the electrical connection seat 5, the top of the electrical connection seat 5 is provided with an insulating cover 6, and also includes a connecting cable 16 and a plastic rod 17. The inner wall of the electrical connection seat 5 is provided with an electrical connection groove 29, and the outer side of the electrical connection seat 5 is a plastic insulating material. The metal plug plate 4 is electrically connected to the electrical connection groove 29, and the electrical connection groove 29 is electrically connected with a connecting cable 16. A plurality of plastic rods 17 are provided between the insulating cover 6 and the electrical connection seat 5. The electrical connection seat 5 can be fixed to the power component using fasteners such as glue or bolts, so that the electrical connection seat 5 is horizontally arranged, and then the connecting cable 16 is used to electrically connect the power component, and the metal plug plate 4 is inserted into the electrical connection seat 5. In the electrical connection slot 29, the metal plug plate 4 is tightly fitted with the electrical connection slot 29. A copper clip 26 is provided in the electrical connection slot 29. The copper clip 26 can clamp the metal plug plate 4 and stabilize it, so that the metal plug plate 4 and the electrical connection slot 29 are electrically connected. When a fire problem occurs between the power components or the distribution box, when the open flame spreads from the power component to the electrical connection seat 5, the high temperature generated can melt the plastic rod 17. Then, under the torsional action of the coil spring 19, the metal plug plate 4 is flipped along the rotation direction of the rotating shaft 18, so that the metal plug plate 4 bounces in the electrical connection slot 29, and the electrical connection between the metal plug plate 4 and the electrical connection slot 29 is cut off, thereby preventing the open flame from spreading to the protective layer 1 and the conductor 2.

[0034] like Figures 1 to 2 and Figures 7 to 9As shown, the rotating cylinder 7 is fixedly connected to one side of the protective layer 1 through a mounting member 27, and a plurality of mounting rings 28 are fixedly connected to the outer wall of the protective layer 1. The mounting member 27 is connected to one of the mounting rings 28 using bolts. A rotating flip assembly is provided on the rotating cylinder 7 and the side of the protective layer 1 close to the connection cap 3. The rotating flip assembly includes a rotating shaft 18 and a connecting member 20. The rotating shaft 18 is rotatably connected in the rotating cylinder 7. A coil spring 19 is provided between the inner wall of the rotating cylinder 7 and the rotating shaft 18. A connecting member 20 is fixedly connected to the rotating shaft 18. A sliding ring 21 is slidably provided on the protective layer 1. The sliding ring 21 is fixedly connected to the connecting member 20. In the event of a fire, in order to allow the metal insert plate 4 to pop out of the electrical connection seat 5, the metal insert plate 4 is placed in the electrical connection seat 5. When the metal insert plate 4 is inserted into the electrical connection slot 29, the conductor 2 and the protective layer 1 are kept parallel to the electrical connection slot 29. At this time, the coil spring 19 will generate a certain torsional force on the protective layer 1. However, because the metal insert plate 4 is fixed between the electrical connection slot 29 and the insulating cover 6, the coil spring 19 will always maintain the torsional force that drives the rotating shaft 18 to rotate. When the insulating cover 6 falls off due to the melting of the plastic rod 17, the torsional force of the coil spring 19 causes the rotating shaft 18 to drive the connecting member 20 and the sliding ring 21 to flip. During the flipping process, the sliding ring 21 contacts the connecting cap 3, causing the connecting cap 3, the conductor 2, the protective layer 1 and the metal insert plate 4 to flip along the center point of the rotating shaft 18, so that the metal insert plate 4 is removed from the electrical connection slot 29.

[0035] The mounting plate 22 is provided with a plurality of mounting screw holes. A connecting rod 23 is provided between the mounting plate 22 and the rotating cylinder 7. To fix the rotating cylinder 7 and the protective layer 1, the mounting plate 22 is fitted into the mounting screw holes using bolts and then installed at a designated position. Then, a connecting rod 23 of a corresponding length is selected between the mounting plate 22 and the rotating cylinder 7, and the connecting rod 23, the mounting plate 22, and the rotating cylinder 7 are fixedly connected using bolts. Furthermore, because the rotating cylinder 7 and the protective layer 1 are fixedly connected via the mounting member 27, the protective layer 1 and the conductor 2 are also fixed.

[0036] A tension matching component is provided between the rotating cylinder 7 and the protective layer 1, and the tension matching component is provided between the mounting piece 27 and the rotating flipping component. The tension matching component includes a tension frame 24 and an elastic bending rod 25. The tension frame 24 is slidably provided on the outside of the protective layer 1, and an elastic bending rod 25 is provided between the tension frame 24 and the rotating cylinder 7. When the sliding ring 21 drives the metal plug plate 4 to pop out from the electrical connection groove 29, the protective layer 1 and the conductor 2 located in the area between the mounting piece 27 and the connection cap 3 will also move accordingly, so as to ensure that the protective layer 1 and the conductor 2 always maintain sufficient tension between them whether they are transmitting current during normal use or when the metal plug plate 4 pops out to release the electrical connection. When the protective layer 1 and the conductor 2 move together with the sliding ring 21, the elastic bending rod 25 is bent and tilted, so that the protective layer 1 can move in the tension frame 24. The inner wall of the tension frame 24 is set to an arc shape, so that the protective layer 1 can move smoothly in the tension frame 24.

[0037] The use principle of the cable with flame retardant structure:

[0038] Insert the metal portion of the conductor 2 into the insertion seat 8, so that the conductor 2, the insertion seat 8 and the metal insert plate 4 are electrically connected. After the conductor 2 is moved into the connection cap 3, the bottom of the metal portion of the conductor 2 is brought into contact with the support seat 10. The adjusting screw 14 is rotated to move the adjusting screw 14 into the connection cap 3, and the extrusion seat 11 and the sliding member 15 are moved, finally bringing the metal extrusion layer 12 into contact with the conductor 2, and clamping the conductor 2 between the metal extrusion layer 12 and the support seat 10. Due to the electrical connection between the support seat 10, the conductive layer 9 and the metal extrusion layer 12 and the insertion seat 8, the conductor 2 can fully perform the power transmission operation;

[0039] Then, the metal plug plate 4 is inserted into the electrical connection slot 29 in the electrical connection seat 5, so that the metal plug plate 4 and the electrical connection slot 29 are tightly fitted together. The copper clip 26 can clamp the metal plug plate 4 to stabilize it, so that the metal plug plate 4 and the electrical connection slot 29 are electrically connected. When a fire problem occurs between the power components or the distribution box, when the open flame spreads from the power component to the electrical connection seat 5, the high temperature generated can melt the plastic rod 17, and then under the torsional action of the coil spring 19, the metal plug plate 4 is flipped along the rotation direction of the rotation shaft 18, so that the metal plug plate 4 bounces in the electrical connection slot 29, and the electrical connection between the metal plug plate 4 and the electrical connection slot 29 is cut off, thereby preventing the open flame from spreading to the protective layer 1 and the conductor 2.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cable with a flame retardant structure, comprising a protective layer (1) and a conductor (2), wherein the conductor (2) is arranged in the protective layer (1), characterized in that: Also includes: A connecting cap (3), one side of the conductor (2) extends into the connecting cap (3), a metal plug plate (4) is provided in the connecting cap (3), and the conductor (2) is electrically connected to the metal plug plate (4); An electrical connection seat (5), wherein the metal plug plate (4) extends into the electrical connection seat (5), the metal plug plate (4) is electrically connected to the electrical connection seat (5), and an insulating cover (6) is provided on the top of the electrical connection seat (5); A rotating cylinder (7), the rotating cylinder (7) being fixedly connected to one side of the protective layer (1) via a mounting member (27), a rotating flip assembly being provided between the rotating cylinder (7) and the protective layer (1) on a side close to the connection cap (3), and a tension fitting assembly being provided between the rotating cylinder (7) and the protective layer (1); Also includes: An insertion seat (8), the insertion seat (8) is arranged in the connection cap (3), the conductor (2) is inserted into the insertion seat (8), and the metal plug plate (4) is fixedly connected to the insertion seat (8); Conductive layer (9), the connecting cap (3) is made of a plastic insulating material, the conductive layer (9) is provided on the inner wall of the connecting cap (3), and a supporting seat (10) is provided on the inner arc surface of the conductive layer (9); An extrusion seat (11), the extrusion seat (11) is also made of a plastic insulating material, a position adjustment structure is provided between the extrusion seat (11) and the connection cap (3), a metal extrusion layer (12) is provided on the side of the extrusion seat (11) close to the conductor (2), the conductor (2) is located between the support seat (10) and the metal extrusion layer (12), and the metal extrusion layer (12) and the conductive layer (9) are both electrically connected to the insertion seat (8); The position adjustment structure includes: A mounting cover (13), wherein the mounting cover (13) is connected to the connecting cap (3), an adjusting screw (14) is threadedly connected to the mounting cover (13), and an end of the adjusting screw (14) close to the extrusion seat (11) is rotatably connected to the extrusion seat (11); A sliding member (15), wherein the extrusion seat (11) is slidably connected to the mounting cover (13) via the sliding member (15); Also includes: A connecting cable (16), an electrical connection slot (29) is provided on the inner wall of the electrical connection seat (5), the outer side of the electrical connection seat (5) is made of a plastic insulating material, the metal plug plate (4) is electrically connected to the electrical connection slot (29), and the electrical connection slot (29) is electrically connected to the connecting cable (16); Plastic rods (17), a plurality of the plastic rods (17) are provided between the insulating cover (6) and the electrical connection seat (5); The rotation and flipping assembly comprises: A rotating shaft (18), the rotating shaft (18) being rotatably connected in the rotating cylinder (7), and a coil spring (19) being provided between the inner wall of the rotating cylinder (7) and the rotating shaft (18); A connecting member (20) is fixedly connected to the rotating shaft (18), a sliding ring (21) is slidably provided on the protective layer (1), and the sliding ring (21) is fixedly connected to the connecting member (20).

2. The cable with a flame retardant structure according to claim 1, characterized in that: Also includes: A mounting plate (22) is provided with a plurality of mounting screw holes, and a connecting rod (23) is provided between the mounting plate (22) and the rotating cylinder (7).

3. The cable with a flame retardant structure according to claim 2, characterized in that: The tension fit assembly comprises: A tension frame (24), the tension frame (24) being slidably arranged on the outside of the protective layer (1); An elastic bending rod (25) is provided between the tension frame (24) and the rotating cylinder (7).

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