Halogen-free low-smoke flame-retardant light control cable

Abstract

The utility model discloses a kind of halogen-free low smoke's flame-retardant light control cable, the outside bottom of two conductors is equipped with supporting base, the top of supporting base is symmetrically provided with mounting groove, the bottom end of two mounting grooves is provided with positioning slot, the both sides of supporting base top are equidistantly provided with splicing groove, the top of supporting base is equidistantly installed with U type stable frame, the middle part of U type stable frame is symmetrically connected with arc pressing block, the utility model uses supporting base to the cable played the role of supporting stability, mounting groove separates and positions adjacent cable, prevent mutual contact between cable, improve the neatness of cable placement installation laying, and using splicing groove and splicing convex block cooperate with each other, to U type stable frame played the role of installation fixation, and then arc pressing block can be tightly pressed in the top of cable, improve the installation stability of cable, prevent cable from moving close to each other during use.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a halogen-free, low-smoke, flame-retardant, lightweight control cable. Background Technology

[0002] A cable is an electrical or signal transmission device, typically composed of several or groups of conductors. Control cables are used in industrial and mining enterprises, energy and transportation sectors, and for AC rated voltage control and protection circuits. Flame-retardant cables, on the other hand, are cables that, under specified test conditions, when a sample is burned, the flame spreads only within a limited range after the test fire source is removed, and the residual flame or embers extinguish themselves within a limited time. The fundamental characteristic of halogen-free flame-retardant cables is that while they may be damaged and unable to operate in a fire, they can prevent the spread of fire. They are widely used in applications requiring high safety and environmental protection. Their main characteristics include low smoke, halogen-free, flame retardant, and fire-resistant. Low smoke and halogen-free means that the cable sheath is made of halogen-free materials (such as polyolefin-based materials), and will not release toxic hydrogen halide gas when burning. Flame retardancy and fire resistance ensure that the cable can maintain a certain integrity and operating time in a fire. However, the lack of positioning mechanisms during cable installation currently results in cables being scattered and piled together, affecting aesthetics and making them prone to being pulled together, leading to cable detachment. Therefore, this utility model provides a halogen-free, low-smoke, flame-retardant, lightweight control cable to meet people's needs. Utility Model Content

[0003] This utility model provides a halogen-free, low-smoke, flame-retardant, lightweight control cable, which can effectively solve the problem mentioned in the background art that the lack of a positioning mechanism during cable installation and laying leads to the cables being scattered and piled together, affecting aesthetics, and easily being pulled together, causing the lines to fall off.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a halogen-free, low-smoke, flame-retardant, lightweight control cable, comprising two conductors, an insulation layer sleeved on the surface of the two conductors, a shielding layer sleeved on the surface of the two insulation layers, a halogen-free, low-smoke, flame-retardant layer extruded and wrapped on the surface of the shielding layer, and a positioning and separating mechanism installed on the outer side of the two conductors. The positioning and separating mechanism includes a support base, a mounting groove, a positioning groove, a splicing groove, a U-shaped stabilizing frame, an arc-shaped pressing block, a splicing protrusion, and a stabilizing rubber strip; Support bases are installed on the outer bottom of the two conductors. The top of the support bases is symmetrically provided with mounting grooves. The bottom of the two mounting grooves is provided with positioning grooves. The two sides of the top of the support bases are provided with splicing grooves at equal intervals. The top of the support base is equidistantly equipped with U-shaped stabilizing frames, and the middle of the U-shaped stabilizing frames is symmetrically connected with arc-shaped pressing blocks. The two ends of the bottom of the U-shaped stabilizing frames are symmetrically fixedly connected with splicing protrusions, and the two sides of the splicing protrusions are fixedly connected with stabilizing rubber strips.

[0005] Preferably, the two conductors are respectively embedded inside the two mounting grooves, and the outer wall of the halogen-free low-smoke flame retardant layer is in contact with the inner wall of the mounting groove.

[0006] Preferably, the U-shaped stabilizing frame is located above the halogen-free low-smoke flame-retardant layer, and the two arc-shaped pressing blocks are respectively pressed tightly against the top of the two halogen-free low-smoke flame-retardant layers. The splicing protrusions and stabilizing rubber strips are both embedded inside the splicing grooves.

[0007] Preferably, a safety temperature measuring mechanism is provided at the bottom of the support base; The safety temperature measurement mechanism includes a heat-conducting metal strip, a mounting bracket, a temperature sensor, a support block, and a heat-conducting strip; Thermally conductive metal strips are symmetrically embedded at both ends of the bottom of the support base. A mounting bracket is fixedly installed at one end of the bottom of the support base. Temperature sensors are symmetrically installed on the top of the mounting bracket. Support blocks are equidistantly connected to both sides of the bottom of the support base. Thermally conductive strips are attached to the bottom of the surface of the halogen-free low-smoke flame-retardant layer.

[0008] Preferably, the heat-conducting strip is movably embedded inside the positioning groove, and the two heat-conducting metal strips are respectively located below the two mounting grooves, with the bottom end of the heat-conducting strip and the top end of the heat-conducting metal strip tightly fitted together.

[0009] Preferably, the two temperature sensors are respectively attached to the bottom ends of the two thermally conductive metal strips, and the temperature sensors are connected to an external controller and an alarm.

[0010] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use. 1. Equipped with a positioning and separating mechanism, the support base provides stable support for the cables. The mounting grooves separate and position adjacent cables, preventing them from contacting each other. The interlocking grooves and protrusions work together to secure the U-shaped stabilizer. The arc-shaped pressing block can press firmly against the top of the cable, improving the installation stability and preventing the cables from shifting and affecting each other during use. The deformation capability of the stabilizing rubber strip makes the interlocking protrusion more stable inside the interlocking groove, preventing it from easily falling off. The overall installation and disassembly of the U-shaped stabilizer is simple and convenient.

[0011] 2. A safety temperature measurement mechanism is installed, which uses heat-conducting strips and heat-conducting metal strips to transmit the surface temperature of the cable. The temperature sensor can accurately detect temperature changes, playing a role in monitoring and preventing temperature anomalies that occur after a cable short circuit. When a temperature anomaly occurs, the information is captured and transmitted in a timely manner, providing auxiliary reference for staff to inspect the line in a timely manner, and preventing situations where cable short circuits cause temperature anomalies that go undetected for a long time and lead to fires. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the insulating layer of this utility model; Figure 3 This is a schematic diagram of the positioning and separating mechanism of this utility model; Figure 4 This is a structural schematic diagram of the safety temperature measuring mechanism of this utility model; The diagram labels are: 1. Conductor; 2. Insulation layer; 3. Shielding layer; 4. Halogen-free low-smoke flame-retardant layer. 5. Positioning and separating mechanism; 501. Support base; 502. Mounting groove; 503. Positioning groove; 504. Splicing groove; 505. U-shaped stabilizing frame; 506. Arc-shaped pressing block; 507. Splicing protrusion; 508. Stabilizing rubber strip; 6. Safety temperature measurement mechanism; 601. Thermally conductive metal strip; 602. Mounting bracket; 603. Temperature sensor; 604. Support block; 605. Thermally conductive strip. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] Example: Figure 1-4 As shown, this utility model provides a technical solution: a halogen-free, low-smoke, flame-retardant, lightweight control cable, comprising two conductors 1, an insulation layer 2 sleeved on the surface of the two conductors 1, a shielding layer 3 sleeved on the surface of the two insulation layers 2, a halogen-free, low-smoke, flame-retardant layer 4 extruded and wrapped on the surface of the shielding layer 3, and a positioning and separating mechanism 5 installed on the outside of the two conductors 1. The positioning and separating mechanism 5 includes a support base 501, a mounting groove 502, a positioning groove 503, a splicing groove 504, a U-shaped stabilizing frame 505, an arc-shaped pressing block 506, a splicing protrusion 507, and a stabilizing rubber strip 508. Support bases 501 are installed on the outer bottom of the two conductors 1. The top of the support bases 501 is symmetrically provided with mounting grooves 502. The two conductors 1 are respectively embedded in the two mounting grooves 502. The outer wall of the halogen-free low-smoke flame retardant layer 4 is in contact with the inner wall of the mounting grooves 502. The bottom of the two mounting grooves 502 is provided with positioning grooves 503. The two sides of the top of the support bases 501 are provided with splicing grooves 504 at equal intervals. U-shaped stabilizing brackets 505 are equidistantly installed at the top of the support base 501. Arc-shaped pressing blocks 506 are symmetrically connected to the middle of the U-shaped stabilizing brackets 505. Splicing protrusions 507 are symmetrically fixed to both ends of the bottom of the U-shaped stabilizing brackets 505. Stabilizing rubber strips 508 are fixedly connected to both sides of the splicing protrusions 507. The U-shaped stabilizing brackets 505 are located above the halogen-free low-smoke flame-retardant layer 4. The two arc-shaped pressing blocks 506 are pressed tightly against the tops of the surfaces of the two halogen-free low-smoke flame-retardant layers 4. The splicing protrusions 507 and stabilizing rubber strips 508 are embedded inside the splicing grooves 504. The support base 501 provides support and stability for the cable. The installation groove 502 separates and positions adjacent cables to prevent them from contacting each other. The splicing groove 504 and splicing protrusion 507 work together to fix the U-shaped stabilizer 505 in place. The arc-shaped pressing block 506 can press firmly on the top of the cable, improving the installation stability of the cable and preventing the cable from shifting and affecting each other during use. The deformation capability of the stabilizing rubber strip 508 makes the splicing protrusion 507 more stable inside the splicing groove 504, preventing it from falling off easily. The U-shaped stabilizer 505 is easy to install and disassemble. A safety temperature measuring mechanism 6 is provided at the bottom of the support base 501; The safety temperature measuring mechanism 6 includes a heat-conducting metal strip 601, a mounting bracket 602, a temperature sensor 603, a support block 604, and a heat-conducting strip 605; Thermally conductive metal strips 601 are symmetrically embedded at both ends of the bottom of the support base 501. A mounting bracket 602 is fixedly installed at one end of the bottom of the support base 501. Temperature sensors 603 are symmetrically installed on the top of the mounting bracket 602. Support blocks 604 are equidistantly connected to both sides of the bottom of the support base 501. Thermally conductive strips 605 are fitted to the bottom of the surface of the halogen-free low-smoke flame-retardant layer 4. The thermally conductive strips 605 are movably embedded inside the positioning grooves 503. The two thermally conductive metal strips 601 are located below the two mounting grooves 502 respectively. The bottom end of the thermally conductive strip 605 is tightly fitted to the top end of the thermally conductive metal strip 601. Each temperature sensor 603 is attached to the bottom end of two heat-conducting metal strips 601. The temperature sensor 603 is connected to an external controller and alarm. The heat-conducting strips 605 and 601 are used to transmit the surface temperature of the cable. The temperature sensor 603 can accurately detect temperature changes and plays a role in monitoring and preventing temperature abnormalities that occur after a cable short circuit. When a temperature abnormality occurs, the sensor can capture and transmit information in a timely manner, providing auxiliary reference for staff to check the line in a timely manner. This prevents situations where a cable short circuit causes a temperature abnormality that goes undetected for a long time and leads to a fire.

[0016] The working principle and usage process of this utility model are as follows: First, when installing the cable, two adjacent cables are placed in the middle of the support base 501, and the two cables are respectively embedded in the two installation grooves 502, which plays a role in positioning and separating the adjacent cables. The heat-conducting strip 605 at the bottom of the cable is embedded in the positioning groove 503 and is in contact with the heat-conducting metal strip 601. The operator takes the U-shaped stabilizing frame 505 and embeds the splicing protrusion 507 into the splicing groove 504. Utilizing the deformation ability of the stabilizing rubber strip 508, it is squeezed and deformed when embedded, which improves the installation stability of the splicing protrusion 507. This makes the U-shaped stabilizing frame 505 spliced ​​and fixed on the top of the support base 501. The two arc-shaped pressing blocks 506 are pressed tightly on the top surface of the cable. When the cable is running, the adjacent cables are separated to prevent the cable from shifting and shaking, which could cause the line to fall off and be damaged. It also improves the neatness of the cable arrangement. The halogen-free low-smoke flame-retardant layer 4 also improves the fire resistance of the cable. Meanwhile, if a short circuit occurs in the cable, it will cause the cable to heat up. The heat can be transferred by the heat-conducting strip 605 and the heat-conducting metal strip 601. The temperature sensor 603 monitors the temperature change. If an abnormal temperature change is detected, it will transmit a signal to remind the staff so that they can repair the line in time and prevent the cable from being in a short-circuit high temperature for a long time, which may easily lead to a fire.

[0017] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A halogen-free, low-smoke, flame-retardant, lightweight control cable, comprising two conductors (1), characterized in that: An insulating layer (2) is sleeved on the surface of the two conductors (1), a shielding layer (3) is sleeved on the surface of the two insulating layers (2), a halogen-free low-smoke flame-retardant layer (4) is extruded and wrapped on the surface of the shielding layer (3), and a positioning and separating mechanism (5) is installed on the outside of the two conductors (1). The positioning and separating mechanism (5) includes a support base (501), a mounting groove (502), a positioning groove (503), a splicing groove (504), a U-shaped stabilizing frame (505), an arc-shaped pressing block (506), a splicing protrusion (507), and a stabilizing rubber strip (508). Support bases (501) are installed on the outer bottom of the two conductors (1). The top of the support bases (501) is symmetrically provided with mounting grooves (502). The bottom of the two mounting grooves (502) is provided with positioning grooves (503). The two sides of the top of the support bases (501) are provided with splicing grooves (504) at equal intervals. The top of the support base (501) is equidistantly equipped with U-shaped stabilizing frames (505), and the middle of the U-shaped stabilizing frames (505) is symmetrically connected with arc-shaped pressing blocks (506). The two ends of the bottom of the U-shaped stabilizing frames (505) are symmetrically fixedly connected with splicing protrusions (507), and the two sides of the splicing protrusions (507) are fixedly connected with stabilizing rubber strips (508).

2. The halogen-free, low-smoke, flame-retardant, lightweight control cable according to claim 1, characterized in that, The two conductors (1) are respectively embedded in the interior of the two mounting grooves (502), and the outer wall of the halogen-free low-smoke flame retardant layer (4) is in contact with the inner wall of the mounting groove (502).

3. The halogen-free, low-smoke, flame-retardant, lightweight control cable according to claim 1, characterized in that, The U-shaped stabilizing frame (505) is located above the halogen-free low-smoke flame-retardant layer (4), and the two arc-shaped pressing blocks (506) are pressed tightly on the top of the surfaces of the two halogen-free low-smoke flame-retardant layers (4). The splicing protrusion (507) and the stabilizing rubber strip (508) are both embedded in the splicing groove (504).

4. The halogen-free, low-smoke, flame-retardant, lightweight control cable according to claim 3, characterized in that, A safety temperature measuring mechanism (6) is provided at the bottom of the support base (501). The safety temperature measuring mechanism (6) includes a heat-conducting metal strip (601), a mounting bracket (602), a temperature sensor (603), a support block (604), and a heat-conducting strip (605). Thermally conductive metal strips (601) are symmetrically embedded at both ends of the bottom of the support base (501). A mounting bracket (602) is fixedly installed at one end of the bottom of the support base (501). Temperature sensors (603) are symmetrically installed on the top of the mounting bracket (602). Support blocks (604) are equidistantly connected to both sides of the bottom of the support base (501). Thermally conductive strips (605) are attached to the bottom of the surface of the halogen-free low-smoke flame-retardant layer (4).

5. The halogen-free, low-smoke, flame-retardant, lightweight control cable according to claim 4, characterized in that, The heat-conducting strip (605) is movably embedded inside the positioning groove (503), and the two heat-conducting metal strips (601) are respectively located below the two mounting grooves (502). The bottom end of the heat-conducting strip (605) is tightly attached to the top end of the heat-conducting metal strip (601).

6. The halogen-free, low-smoke, flame-retardant, lightweight control cable according to claim 4, characterized in that, The two temperature sensors (603) are respectively attached to the bottom ends of the two thermally conductive metal strips (601), and the temperature sensors (603) are connected to an external controller and an alarm.

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