A wiring harness having a flame retardant device

Abstract

The application discloses a wire harness with a flame-retardant device and relates to the technical field of wire harnesses. The wire harness comprises a shell, the outer surface of the shell is fixedly connected with a connecting frame, the shell is made of fireproof material, and self-ignition cannot occur when the shell is affected by fire. The outer side of the connecting frame is provided with a supporting plate, the outer side of the supporting plate is provided with a detection mechanism, the detection mechanism is used for detecting a fire source, the detection mechanism comprises a circular tube, the circular tube is fixedly connected to the outer side of the supporting plate, a limiting ring is fixedly connected to the inner wall of the circular tube, a moving rod is slidably connected to the inner cavity of the limiting ring, and a connecting block is fixedly connected to one end of the moving rod located in the outer cavity of the circular tube. When a naked flame is needed for the wire harness and the temperature around the wire harness is increased, the detection mechanism can be used to protect and retard the wire harness when there is a naked flame around the wire harness.

Description

Technical Field

[0001] This invention relates to the field of wire harness technology, specifically to a wire harness with a flame-retardant device. Background Technology

[0002] A wire harness is an assembly of wires, cables, and related connecting components, playing a crucial role in various electronic devices and electrical systems. Structurally, the core of a wire harness is the wire, which is responsible for transmitting current and signals. The wire is typically made of copper or aluminum due to its excellent conductivity. An insulation layer surrounds the wire to prevent current leakage and ensure safety; common insulation materials include polyvinyl chloride (PVC) and rubber. Connecting components include terminals, plugs, and sockets, which are responsible for connecting different wires together to ensure circuit continuity.

[0003] If wiring harnesses lack flame retardancy, it will have many serious consequences. In terms of safety, during the operation of electrical systems, the wiring may generate high temperatures or even electric sparks due to overload, short circuits, etc. Wiring harnesses without flame retardancy are very easy to ignite, causing fires and posing a huge threat to people's lives and property. For example, in a car, the engine compartment has high temperatures and complex wiring. Once a non-flame retardant wiring harness catches fire, the fire will spread rapidly, endangering the safety of the driver and passengers. From the perspective of equipment operation, wiring harness fires will directly damage the electrical connections of the equipment, leading to equipment failure or even scrapping. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wire harness with a flame-retardant device, comprising a housing, wherein a connecting frame is fixedly connected to the outer surface of the housing, the housing being made of fire-resistant material and not spontaneously combusting when exposed to flame; a support plate is provided on the outer side of the connecting frame, and a detection mechanism is provided on the outer side of the support plate for detecting a fire source; the detection mechanism comprises a circular tube fixedly connected to the outer side of the support plate, a limiting ring fixedly connected to the inner wall of the circular tube, a moving rod slidably connected to the inner cavity of the limiting ring, and a connecting block fixedly connected to one end of the moving rod located in the outer cavity of the circular tube. By setting up a detection mechanism, the protection function can be automatically activated when the wire harness requires an open flame and the surrounding temperature rises, triggering the flame-retardant mechanism and the fire-extinguishing mechanism, thereby achieving the effect of protecting and extinguishing the fire of the wire harness. By setting up a circular tube and a limiting ring, the moving rod can be limited, so that the moving rod produces a stable lateral movement effect within the inner cavity of the circular tube and the limiting ring. Furthermore, the bottom of the circular tube is open, allowing external heat sources to enter the inner cavity of the circular tube. The outer surface of the detection mechanism is fitted with a flame-retardant mechanism, which includes a top shell and a telescopic cover. The top shell is located directly above the detection mechanism, and the telescopic cover is located directly below the top shell. The telescopic cover is made of silicon. Made of rubber, and equipped with a flame-retardant mechanism, the wiring harness automatically wraps around the detection mechanism when it comes into contact with an open flame or heat source, preventing damage to the harness from contact with its weakest point. The top shell and telescopic cover are both made of flame-retardant materials, and the telescopic cover is made of silicone rubber, which has a certain deformation capacity and can remain ignited at high temperatures. A locking frame is fixedly connected to the outer surface of the outer shell, a semi-circular plate is fixedly connected to the outer surface of the locking frame, a first spring is fixedly connected to the outer surface of the semi-circular plate, and a fire extinguishing device is fitted onto the outer surface of the locking frame. The fire extinguishing mechanism includes a sliding ring slidably connected to the outer surface of a locking frame. A sliding plate is fixedly connected to the inner ring of the sliding ring, and the sliding plate is slidably connected to a slot in the locking frame. By setting the locking frame, the fire extinguishing mechanism can be limited, allowing the sliding ring and sliding plate to move laterally without rotating on the outer surface of the housing. A first spring can pull the sliding ring. When the detection mechanism is triggered by an open flame or heat source, the fire extinguishing mechanism releases fire extinguishing material and can fan the fire extinguishing material to make it contact the fire source as much as possible, ultimately achieving the fire extinguishing effect.

[0005] Preferably, an insulating layer is fixedly connected to the inner wall of the outer shell, and a number of wires are provided in the inner cavity of the insulating layer. The number of wires is evenly distributed, and a reinforcing core is provided in the middle of the inner cavity of the insulating layer. By providing the insulating layer, it can prevent spontaneous combustion even when the flame is burning continuously, thus not affecting the operation of the internal wires. By providing the reinforcing core, which is made of several steel wires wound together, it will not be damaged under tension, thereby protecting the wires from being broken.

[0006] Preferably, a first track groove is formed on the upper surface of the circular tube, a sliding frame is fixedly connected to the end of the moving rod away from the connecting block, a sliding column is fixedly connected to the upper surface of the sliding frame, the sliding column is slidably connected to the first track groove formed on the upper surface of the circular tube, and a partition rod is fixedly connected to the bottom of the inner wall of the circular tube. By setting the first track groove, the sliding column can be limited, so that the sliding column can make stable lateral movement at the first track groove on the upper surface of the circular tube. By setting the partition rod, the bottom of the circular tube can be kept open, and external garbage can be prevented from entering the interior of the circular tube and affecting the support operation of the device.

[0007] Preferably, a fixing plate is symmetrically fixedly connected to the inner wall of the circular tube, and a track tube is fixedly connected to the side of the fixing plate away from the inner wall of the circular tube. A sliding block is slidably connected to the inner cavity of the track tube, and the end of the sliding block is fixedly connected to the outer surface of the sliding frame. A second spring is fixedly connected to the outer surface of the sliding block, and the end of the second spring is fixedly connected to the inner wall of the track tube. By setting the track tube, the sliding block can be limited, so that the sliding block can move laterally in the inner cavity of the track tube. By setting the second spring, the sliding block can be pulled to make it rebound, and then the sliding block can be pulled quickly, ultimately causing the sliding frame and the moving rod to move.

[0008] Preferably, a disconnection mechanism is provided on the side of the support plate away from the circular tube. The disconnection mechanism includes a wrapping frame, which is fixedly connected to the side of the support plate away from the circular tube. A first threaded ring is fixedly connected to the inner wall of the wrapping frame, and a first threaded rod is threadedly connected to the inner cavity of the first threaded ring. The first threaded rod passes through the wrapping frame, and a first anti-slip block is fixedly connected to the bottom surface of the inner cavity of the wrapping frame. A bismuth-based alloy wire is provided between the opposing surfaces of the first anti-slip block and the first threaded rod. By providing the disconnection mechanism, the internal tension can be eliminated when there is an open flame around the wire harness, thereby allowing the sliding frame to slide quickly. The threaded ring can limit the first threaded rod, allowing the bismuth-based alloy wire to be squeezed and positioned between the first threaded rod and the first anti-slip block when the first threaded rod rotates. By using the bismuth-based alloy wire, which is composed of bismuth, lead, tin, etc., it can be used as a fuse material in some devices that require temperature control. When the temperature rises to the alloy's melting point, the alloy melts, cutting off the circuit and providing protection. Before reaching the melting point temperature, the alloy can withstand a certain amount of mechanical stress without breaking, ensuring the normal operation of the device.

[0009] Preferably, the disconnection mechanism further includes a second threaded ring and a second anti-slip block. The second threaded ring is fixedly connected to the inner wall of the sliding frame, and a second threaded rod is threadedly connected to the inner cavity of the second threaded ring. The second anti-slip block is fixedly connected to the top surface of the inner cavity of the sliding frame, and the second anti-slip block is located directly above the second threaded rod. The end of the bismuth-based alloy wire away from the first threaded rod is located between the opposing surfaces of the second anti-slip block and the second threaded rod. By setting the second threaded ring, the second threaded rod can be limited, so that when the second threaded rod rotates, it can move towards the second anti-slip block, thereby clamping the other end of the bismuth-based alloy wire.

[0010] Preferably, the flame-retardant mechanism further includes a connecting rod, which is fixedly connected to the upper surface of the connecting frame. The top end of the connecting rod is fixedly connected to the top surface of the inner cavity of the top shell. A second track groove is provided on the side of the lower surface of the top shell. A fixing ring is fixedly connected to the outer surface of the top shell. The telescopic cover is fixedly connected to the outer surface of the fixing ring. A fixing block is fixedly connected to the side of the telescopic cover away from the fixing ring. A first support rod is fixedly connected to the side of the fixing block away from the telescopic cover. The end of the first support rod away from the fixing block is fixedly connected to the outer surface of the sliding column. By setting the connecting rod, the top shell and the connecting frame can be connected together. By setting the second track groove, the fixing block can be limited, so that the fixing block can move laterally in the second track groove. By setting the first support rod, the end of the telescopic cover can be connected to the sliding column, so that the telescopic cover is pulled open when the sliding column moves.

[0011] Preferably, a first connecting frame is fixedly connected to the side of the sliding plate away from the outer shell, a pressing rod is fixedly connected to the end of the first connecting frame, a second connecting frame is fixedly connected to the end of the pressing rod, a sealing ring is fixedly connected to the outer surface of the end of the pressing rod away from the first connecting frame, and a friction strip is fixedly connected to the side of the pressing rod away from the outer shell. By setting the first connecting frame and the pressing rod, when the sliding plate is subjected to pressing force and moves laterally, the pressing rod can drive the second connecting frame and the friction strip to move laterally.

[0012] Preferably, the fire extinguishing mechanism further includes a storage mechanism, which includes a storage box fixedly connected to the outer surface of the outer shell. A feed pipe extends through the upper surface of the storage box, and a blocking rod is movably connected to the inner cavity of the feed pipe. An outlet extends through the outer surface of the storage box, and a telescopic plate is fixedly connected to the inner wall of the outlet. The end of the telescopic plate is fixedly connected to the end of the second connecting frame away from the extrusion rod. An air inlet pipe extends through the outer side of the storage box, and the extrusion rod is movably connected to the inner cavity of the air inlet pipe. The sealing ring is pressed and fitted against the inner wall of the air inlet pipe. By setting up the storage mechanism, fire extinguishing powder can be stored, and when fire extinguishing is needed, the stored powder can be sprayed out to achieve the fire extinguishing effect. By setting up the feed pipe and the blocking rod, the storage box can be sealed after the powder is poured into its inner cavity. By setting up the telescopic plate, deformation can occur when the end is pushed, thereby causing the powder in the inner cavity of the storage box to leak out.

[0013] Preferably, a fan mechanism is provided on the outer side of the discharge port. The fan mechanism includes a second support rod, which is fixedly connected to the outer side of the discharge port. A limit sleeve is fixedly connected to the end of the second support rod. A rotating ball is rotatably connected to the inner cavity of the limit sleeve. A rotating column is fixedly connected to the side of the rotating ball away from the limit sleeve. A fan plate is fixedly connected to the outer surface of the rotating column. A friction wheel is fixedly connected to the end of the rotating column away from the rotating ball. The friction wheel is adapted to rub against the friction strip. By setting the fan mechanism, airflow can be generated when the friction strip moves laterally, thereby blowing out the powder in the inner cavity of the storage box. By setting the limit sleeve, the rotating ball can be limited, so that the rotating ball can generate stable rotation. By setting the friction wheel, the friction wheel can drive the fan plate to rotate when the friction strip moves laterally, ultimately generating airflow.

[0014] This invention provides a wire harness with a flame-retardant device. It has the following beneficial effects:

[0015] 1. The wire harness equipped with a flame-retardant device, through the setting of a detection mechanism, can automatically activate the protection function when the wire harness requires an open flame and causes the ambient temperature to rise, triggering the flame-retardant mechanism and the fire extinguishing mechanism, thereby achieving the effect of protecting and extinguishing the wire harness. By setting a round tube and a limiting ring, the moving rod can be limited, so that the moving rod produces a stable lateral movement effect in the inner cavity of the round tube and the limiting ring. Furthermore, the bottom of the round tube is open, allowing external heat sources to enter the inner cavity of the round tube.

[0016] Second, the wire harness with flame-retardant device can automatically wrap the wire harness when it comes into contact with an open flame or heat source and the detection mechanism is triggered, thereby preventing the fire source from contacting the weakest point of the wire harness and causing damage. The wire harness can be wrapped by the top shell and the telescopic cover. Both the top shell and the telescopic cover are made of flame-retardant materials. At the same time, the telescopic cover is made of silicone rubber, which has a certain deformation capacity and can not ignite at high temperatures.

[0017] Third, the wiring harness with flame-retardant device can limit the fire extinguishing mechanism by setting a locking frame, so that the sliding ring and sliding plate can only move laterally on the outer surface of the shell without rotating. By setting a first spring, the sliding ring can be pulled. By setting a fire extinguishing mechanism, when the detection mechanism is triggered by an open flame or heat source, the fire extinguishing mechanism releases the fire extinguishing material and can fan the fire extinguishing material to make it contact the fire source as much as possible, so as to achieve the effect of fire extinguishing.

[0018] Fourth, the wire harness with flame-retardant device, by setting a disconnection mechanism, can make the internal tension disappear when there is an open flame around the wire harness, thereby allowing the sliding frame to slide quickly. By setting a first threaded ring, the first threaded rod can be limited, so that when the first threaded rod rotates, the bismuth-based alloy wire can be squeezed and positioned at the first threaded rod and the first anti-slip block.

[0019] V. The wiring harness with flame-retardant device incorporates bismuth-based alloy wires. These wires are composed of bismuth, lead, tin, etc., which have low melting points, ranging from 70 to 200°C. They also possess a certain degree of toughness at room temperature, making them suitable as fuse materials in devices requiring temperature control. When the temperature rises to the alloy's melting point, the alloy melts, cutting off the circuit and providing protection. Before reaching the melting point, the alloy can withstand certain mechanical stress without breaking, ensuring the normal operation of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of a wire harness with a flame-retardant device according to the present invention;

[0021] Figure 2This is a side view of the structure of a wire harness with a flame-retardant device according to the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of a wire harness with a flame-retardant device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the detection mechanism of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of the detection mechanism of the present invention;

[0025] Figure 6 This is a side view of the detection mechanism structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the disconnection mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the flame-retardant mechanism of the present invention;

[0028] Figure 9 This is a side view of the flame-retardant mechanism structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the fire extinguishing mechanism of the present invention;

[0030] Figure 11 This is a schematic diagram of the disassembled structure of the fire extinguishing mechanism of the present invention;

[0031] Figure 12 This is a schematic diagram of the material storage mechanism of the present invention;

[0032] Figure 13 This is a schematic cross-sectional view of the material storage mechanism of the present invention;

[0033] Figure 14 This is a schematic diagram of the fan mechanism of the present invention.

[0034] In the diagram: 1. Outer shell; 2. Insulation layer; 3. Wire; 4. Reinforcing core; 5. Connecting frame; 6. Support plate; 7. Detection mechanism; 8. Flame-retardant mechanism; 9. Fire extinguishing mechanism; 10. Locking frame; 11. Semicircular plate; 12. First spring; 71. Circular tube; 72. First track groove; 73. Limiting ring; 74. Moving rod; 75. Connecting block; 76. Sliding frame; 77. Sliding column; 78. Disconnecting mechanism; 79. Fixing plate; 710. Track tube; 711. Sliding block; 712. Second spring; 713. Partition rod; 781. Enclosure frame; 782. First threaded ring; 783. First threaded rod; 784. First anti-slip block; 785. Bismuth-based alloy wire; 786. Second threaded ring; 7 87. Second threaded rod; 788. Second anti-slip block; 81. Connecting rod; 82. Top shell; 83. Second track groove; 84. First support rod; 85. Fixing block; 86. Fixing ring; 87. Telescopic cover; 91. Sliding ring; 92. Sliding plate; 93. First connecting frame; 94. Extrusion rod; 95. Friction strip; 96. Second connecting frame; 97. Sealing ring; 98. Material storage mechanism; 99. Fan mechanism; 981. Material storage box; 982. Discharge port; 983. Feed pipe; 984. Blocking rod; 985. Air inlet pipe; 986. Telescopic plate; 991. Second support rod; 992. Limiting sleeve; 993. Rotating ball; 994. Rotating column; 995. Fan plate; 996. Friction wheel. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0036] First embodiment, such as Figure 1 - Figure 7As shown, the present invention provides a technical solution: a wire harness with a flame-retardant device, including a housing 1, a connecting frame 5 fixedly connected to the outer surface of the housing 1, the housing 1 being made of fireproof material and not spontaneously combusting when exposed to flame; a support plate 6 is provided on the outer side of the connecting frame 5, and a detection mechanism 7 is provided on the outer side of the support plate 6, the detection mechanism 7 being used to detect a fire source, the detection mechanism 7 including a circular tube 71, the circular tube 71 being fixedly connected to the outer side of the support plate 6, a limiting ring 73 being fixedly connected to the inner wall of the circular tube 71, a moving rod 74 being slidably connected to the inner cavity of the limiting ring 73, and a connecting block 75 being fixedly connected to one end of the moving rod 74 located in the outer cavity of the circular tube 71; by setting the detection mechanism... Structure 7 can automatically activate the protection function when the ambient temperature rises due to open flame, triggering the flame-retardant mechanism 8 and the fire-extinguishing mechanism 9, thereby achieving the effect of protecting and extinguishing the wire harness. By setting the circular tube 71 and the limiting ring 73, the moving rod 74 can be limited, so that the moving rod 74 can produce a stable lateral movement effect in the inner cavity of the circular tube 71 and the limiting ring 73. Moreover, the bottom of the circular tube 71 is open, allowing external heat sources to enter the inner cavity of the circular tube 71. The outer surface of the detection mechanism 7 is fitted with a flame-retardant mechanism 8, which includes a top shell 82 and a telescopic cover 87. The top shell 82 is located directly above the detection mechanism 7, and the telescopic cover 87 is located directly below the top shell 82. The telescopic cover 87 is made of silicon. Made of rubber, the wiring harness, with a flame-retardant mechanism 8, automatically wraps around the wire harness when the detection mechanism 7 is triggered by an open flame or heat source, preventing damage to the wire harness from contact with its weakest point. The top shell 82 and telescopic cover 87 further enclose the wire harness, both made of flame-retardant materials. The telescopic cover 87 is made of silicone rubber, possessing a certain degree of deformation capability and remaining flammable at high temperatures. A locking frame 10 is fixedly connected to the outer surface of the outer shell 1, a semi-circular plate 11 is fixedly connected to the outer surface of the locking frame 10, and a first spring 12 is fixedly connected to the outer surface of the semi-circular plate 11. A fire extinguishing mechanism 9 is fitted onto the outer surface of the locking frame 10. The fire extinguishing mechanism 9 includes a sliding ring 91, which is slidably connected to the outer surface of the locking frame 10. A sliding plate 92 is fixedly connected to the inner ring of the sliding ring 91, and the sliding plate 92 is slidably connected to the locking groove of the locking frame 10. By setting the locking frame 10, the fire extinguishing mechanism 9 can be limited, so that the sliding ring 91 and the sliding plate 92 can only move laterally on the outer surface of the outer shell 1 without rotating. By setting the first spring 12, the sliding ring 91 can be pulled. By setting the fire extinguishing mechanism 9, when the detection mechanism 7 is triggered by an open flame or heat source, the fire extinguishing mechanism 9 releases the fire extinguishing material and can fan the fire extinguishing material to make it contact the fire source as much as possible, so as to achieve the effect of extinguishing the fire.

[0037] An insulating layer 2 is fixedly connected to the inner wall of the outer shell 1. A number of wires 3 are evenly distributed within the inner cavity of the insulating layer 2. A reinforcing core 4 is located in the center of the inner cavity of the insulating layer 2. The insulating layer 2 prevents spontaneous combustion even under continuous flame, thus not affecting the operation of the internal wires 3. The reinforcing core 4, made of several steel wires wound together, will not be damaged under tension, thus protecting the wires 3 from breakage. A first track groove 72 is formed on the upper surface of the circular tube 71. The moving rod 7... 4. A sliding frame 76 is fixedly connected to one end away from the connecting block 75. A sliding column 77 is fixedly connected to the upper surface of the sliding frame 76. The sliding column 77 is slidably connected to the first track groove 72 opened on the upper surface of the circular tube 71. A partition rod 713 is fixedly connected to the bottom of the inner wall of the circular tube 71. By setting the first track groove 72, the sliding column 77 can be limited, so that the sliding column 77 can make stable lateral movement at the first track groove 72 on the upper surface of the circular tube 71. By setting the partition rod 713, the bottom of the circular tube 71 can be kept in an open state, and at the same time, it can prevent external garbage from entering the interior of the circular tube 71 and affecting the support operation of the device.

[0038] A fixing plate 79 is symmetrically fixedly connected to the inner wall of the circular tube 71. A track tube 710 is fixedly connected to the side of the fixing plate 79 away from the inner wall of the circular tube 71. A sliding block 711 is slidably connected to the inner cavity of the track tube 710. The end of the sliding block 711 is fixedly connected to the outer surface of the sliding frame 76. A second spring 712 is fixedly connected to the outer surface of the sliding block 711. The end of the second spring 712 is fixedly connected to the inner wall of the track tube 710. By setting the track tube 710, the sliding block 711 can be limited, so that the sliding block 711 can move laterally in the inner cavity of the track tube 710. By setting the second spring 712, the sliding block 711 can be pulled to make it rebound, and then quickly pulled to move the sliding frame 76 and the moving rod 74.

[0039] A disconnecting mechanism 78 is provided on the side of the support plate 6 away from the circular tube 71. The disconnecting mechanism 78 includes a wrapping frame 781, which is fixedly connected to the side of the support plate 6 away from the circular tube 71. A first threaded ring 782 is fixedly connected to the inner wall of the wrapping frame 781. A first threaded rod 783 is threadedly connected to the inner cavity of the first threaded ring 782, and the first threaded rod 783 passes through the wrapping frame 781. A first anti-slip block 784 is fixedly connected to the bottom surface of the inner cavity of the wrapping frame 781. A bismuth-based alloy wire 785 is provided between the opposing surfaces of the first anti-slip block 784 and the first threaded rod 783. By providing the disconnecting mechanism 78, the internal tension can be eliminated when there is an open flame around the wire harness, thereby allowing the sliding frame 781 to move. 6. Rapid sliding: By setting the first threaded ring 782, the first threaded rod 783 can be limited, so that when the first threaded rod 783 rotates, the bismuth-based alloy wire 785 can be squeezed and positioned at the first threaded rod 783 and the first anti-slip block 784. By setting the bismuth-based alloy wire 785, which is composed of bismuth, lead, tin, etc., they have a low melting point, with the alloy melting point between 70-200℃. At the same time, it has a certain toughness at room temperature, and can be used as a fuse material in some devices that require temperature control. When the temperature rises to the alloy melting point, the alloy melts and cuts off the circuit, playing a protective role. When the melting point temperature is not reached, the alloy can withstand a certain mechanical stress without breaking, ensuring the normal operation of the device.

[0040] The disconnection mechanism 78 further includes a second threaded ring 786 and a second anti-slip block 788. The second threaded ring 786 is fixedly connected to the inner wall of the sliding frame 76. A second threaded rod 787 is threadedly connected to the inner cavity of the second threaded ring 786. The second anti-slip block 788 is fixedly connected to the top surface of the inner cavity of the sliding frame 76. The second anti-slip block 788 is located directly above the second threaded rod 787. The end of the bismuth-based alloy wire 785 away from the first threaded rod 783 is located between the opposing surfaces of the second anti-slip block 788 and the second threaded rod 787. By setting the second threaded ring 786, the second threaded rod 787 can be limited, so that when the second threaded rod 787 rotates, it can move towards the second anti-slip block 788, thereby clamping the other end of the bismuth-based alloy wire 785.

[0041] Second embodiment, such as Figure 8 - Figure 9As shown, the flame-retardant mechanism 8 also includes a connecting rod 81, which is fixedly connected to the upper surface of the connecting frame 5. The top end of the connecting rod 81 is fixedly connected to the top surface of the inner cavity of the top shell 82. A second track groove 83 is provided on the side of the lower surface of the top shell 82. A fixing ring 86 is fixedly connected to the outer surface of the top shell 82. The telescopic cover 87 is fixedly connected to the outer surface of the fixing ring 86. A fixing block 85 is fixedly connected to the side of the telescopic cover 87 away from the fixing ring 86. The fixing block 85 is fixedly connected to the side of the telescopic cover 87 away from the telescopic cover 87. There is a first support rod 84, and the end of the first support rod 84 away from the fixed block 85 is fixedly connected to the outer surface of the sliding column 77. By setting the connecting rod 81, the top shell 82 can be connected to the connecting frame 5. By setting the second track groove 83, the fixed block 85 can be limited, so that the fixed block 85 can move laterally at the second track groove 83. By setting the first support rod 84, the end of the telescopic cover 87 can be connected to the sliding column 77, so that the telescopic cover 87 is pulled open when the sliding column 77 moves.

[0042] The third embodiment, such as Figure 10 - Figure 14As shown, a first connecting frame 93 is fixedly connected to the side of the sliding plate 92 away from the outer casing 1. A pressing rod 94 is fixedly connected to the end of the first connecting frame 93. A second connecting frame 96 is fixedly connected to the end of the pressing rod 94. A sealing ring 97 is fixedly connected to the outer surface of the end of the pressing rod 94 away from the first connecting frame 93. A friction strip 95 is fixedly connected to the side of the pressing rod 94 away from the outer casing 1. By setting the first connecting frame 93 and the pressing rod 94, when the sliding plate 92 is subjected to pressing force and moves laterally, the pressing rod 94 can drive the second connecting frame 96 and the friction strip 95 to move laterally. The fire extinguishing mechanism 9 also includes a storage mechanism 98, which includes a storage box 981. The material hopper 981 is fixedly connected to the outer surface of the outer shell 1. A feed pipe 983 penetrates the upper surface of the material hopper 981. A blocking rod 984 is movably connected to the inner cavity of the feed pipe 983. An outlet 982 penetrates the outer surface of the material hopper 981. A telescopic plate 986 is fixedly connected to the inner wall of the outlet 982. The end of the telescopic plate 986 is fixedly connected to the end of the second connecting frame 96 away from the extrusion rod 94. An air inlet pipe 985 penetrates the outer side of the material hopper 981. The extrusion rod 94 is movably connected to the inner cavity of the air inlet pipe 985. A sealing ring 97 is pressed and fitted against the inner wall of the air inlet pipe 985. By setting up the material storage mechanism 98, fire extinguishing powder can be stored and used for fire extinguishing when needed. When the fire is extinguished, the stored powder is sprayed out to achieve the effect of fire extinguishing. By setting up the feed pipe 983 and the blocking rod 984, the storage box 981 can be sealed after the powder is poured into the inner cavity. By setting up the telescopic plate 986, it can deform when the end is pushed, thereby causing the powder in the inner cavity of the storage box 981 to leak out. The outer side of the discharge port 982 is provided with a fan mechanism 99. The fan mechanism 99 includes a second support rod 991, which is fixedly connected to the outer side of the discharge port 982. The end of the second support rod 991 is fixedly connected to a limit sleeve 992. A rotating ball 993 is rotatably connected to the inner cavity of the limit sleeve 992. The rotating ball 993 is far from the inner cavity of the limit sleeve 992. A rotating column 994 is fixedly connected to one side of the limiting sleeve 992. A fan plate 995 is fixedly connected to the outer surface of the rotating column 994. A friction wheel 996 is fixedly connected to the end of the rotating column 994 away from the rotating ball 993. The friction wheel 996 is adapted to rub against the friction strip 95. By setting the fan mechanism 99, airflow can be generated when the friction strip 95 moves laterally, thereby blowing out the powder in the inner cavity of the storage box 981. By setting the limiting sleeve 992, the rotating ball 993 can be limited, so that the rotating ball 993 can generate stable rotation. By setting the friction wheel 996, when the friction strip 95 moves laterally, the friction wheel 996 can drive the fan plate 995 to rotate, ultimately generating airflow.

[0043] Working principle: When in use, the operator pulls the telescopic cover 87 to compress the telescopic cover 87, so that the heat of the wire harness can be dissipated when there is no fire. Then, the brand new bismuth-based alloy wire 785 is placed on the surface of the first anti-slip block 784 and the second anti-slip block 788. Then, the first threaded rod 783 and the second threaded rod 787 are rotated respectively to position the bismuth-based alloy wire 785.

[0044] When there is an open flame or heat source around the wire harness, the bismuth-based alloy wire 785 melts and then breaks. When the bismuth-based alloy wire 785 breaks, the sliding frame 76 is no longer pulled. Then, under the elastic potential energy of the second spring 712, the sliding frame 76 moves away from the disconnection mechanism 78. During the movement, the sliding column 77 drives the first support rod 84 to move laterally. Then the telescopic cover 87 is pulled open to wrap the wire harness and achieve the effect of blocking the fire source.

[0045] The sliding frame 76 drives the moving rod 74 and the connecting block 75 to move, which in turn causes the sliding ring 91 and the sliding plate 92 to move in the locking frame 10. Then, the extrusion rod 94 moves laterally, causing the second connecting frame 96 and the telescopic plate 986 to be squeezed and contracted. When the extrusion rod 94 moves laterally, the friction strip 95 drives the friction wheel 996 to rotate, which in turn causes the fan plate 995 to rotate and generate airflow. The airflow enters the inner cavity of the storage box 981 through the air inlet pipe 985. Then, the fire extinguishing powder in the inner cavity of the storage box 981 is sprayed out from the outlet 982, ultimately achieving the fire extinguishing effect.

[0046] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A wire harness with a flame-retardant device, comprising a housing, wherein a connecting frame is fixedly connected to the outer surface of the housing, characterized in that: A support plate is provided on the outer side of the connecting frame, and a detection mechanism is provided on the outer side of the support plate. The detection mechanism is used to detect fire sources. The detection mechanism includes a circular tube, which is fixedly connected to the outer side of the support plate. A limit ring is fixedly connected to the inner wall of the circular tube, and a moving rod is slidably connected to the inner cavity of the limit ring. A connecting block is fixedly connected to one end of the moving rod located in the outer cavity of the circular tube. A flame-retardant mechanism is fitted on the outer surface of the detection mechanism. The flame-retardant mechanism includes a top shell and a telescopic cover. The top shell is located directly above the detection mechanism, and the telescopic cover is located directly below the top shell. The telescopic cover is made of silicone rubber. A locking frame is fixedly connected to the outer surface of the outer shell, and a semi-circular plate is fixedly connected to the outer surface of the locking frame. A first spring is fixedly connected to the outer surface of the semi-circular plate, and a fire extinguishing mechanism is fitted on the outer surface of the locking frame. A sliding frame is fixedly connected to the end of the moving rod away from the connecting block. A disconnection mechanism is provided on the side of the support plate away from the circular tube. The disconnection mechanism includes a wrapping frame. The wrapping frame is fixedly connected to the side of the support plate away from the circular tube. A first threaded ring is fixedly connected to the inner wall of the wrapping frame. A first threaded rod is threadedly connected to the inner cavity of the first threaded ring. The first threaded rod passes through the wrapping frame. A first anti-slip block is fixedly connected to the bottom surface of the inner cavity of the wrapping frame. A bismuth-based alloy wire is provided between the opposite surfaces of the first anti-slip block and the first threaded rod. The disconnection mechanism further includes a second threaded ring and a second anti-slip block. The second threaded ring is fixedly connected to the inner wall of the sliding frame. A second threaded rod is threadedly connected to the inner cavity of the second threaded ring. The second anti-slip block is fixedly connected to the top surface of the inner cavity of the sliding frame. The second anti-slip block is located directly above the second threaded rod. The end of the bismuth-based alloy wire away from the first threaded rod is located between the opposing surfaces of the second anti-slip block and the second threaded rod. The flame-retardant mechanism also includes a connecting rod, which is fixedly connected to the upper surface of the connecting frame. The top end of the connecting rod is fixedly connected to the top surface of the inner cavity of the top shell. A second track groove is provided on the side of the lower surface of the top shell. A fixing ring is fixedly connected to the outer surface of the top shell. The telescopic cover is fixedly connected to the outer surface of the fixing ring. A fixing block is fixedly connected to the side of the telescopic cover away from the fixing ring. A first support rod is fixedly connected to the side of the fixing block away from the telescopic cover. The end of the first support rod away from the fixing block is fixedly connected to the outer surface of the sliding column.

2. A wire harness with a flame-retardant device according to claim 1, characterized in that: The fire extinguishing mechanism includes a sliding ring, which is slidably connected to the outer surface of the positioning frame. A sliding plate is fixedly connected to the inner ring of the sliding ring, and the sliding plate is slidably connected to the slot of the positioning frame. An insulating layer is fixedly connected to the inner wall of the outer shell. A wire is provided in the inner cavity of the insulating layer. The number of wires is several, and the several wires are evenly distributed. A reinforcing core is provided in the middle of the inner cavity of the insulating layer.

3. A wire harness with a flame-retardant device according to claim 2, characterized in that: The upper surface of the circular tube is provided with a first track groove, the upper surface of the sliding frame is fixedly connected with a sliding column, the sliding column is slidably connected to the first track groove on the upper surface of the circular tube, and a partition rod is fixedly connected to the bottom of the inner wall of the circular tube.

4. A wire harness with a flame-retardant device according to claim 3, characterized in that: A fixing plate is symmetrically fixed to the inner wall of the circular tube. A track tube is fixedly connected to the side of the fixing plate away from the inner wall of the circular tube. A sliding block is slidably connected to the inner cavity of the track tube. The end of the sliding block is fixedly connected to the outer surface of the sliding frame. A second spring is fixedly connected to the outer surface of the sliding block. The end of the second spring is fixedly connected to the inner wall of the track tube.

5. A wire harness with a flame-retardant device according to claim 4, characterized in that: A first connecting frame is fixedly connected to the side of the sliding plate away from the outer shell. A pressing rod is fixedly connected to the end of the first connecting frame. A second connecting frame is fixedly connected to the end of the pressing rod. A sealing ring is fixedly connected to the outer surface of the end of the pressing rod away from the first connecting frame. A friction strip is fixedly connected to the side of the pressing rod away from the outer shell.

6. A wire harness with a flame-retardant device according to claim 5, characterized in that: The fire extinguishing mechanism also includes a storage mechanism, which includes a storage box fixedly connected to the outer surface of the outer shell. A feed pipe extends through the upper surface of the storage box, and a blocking rod is movably connected to the inner cavity of the feed pipe. An outlet extends through the outer surface of the storage box, and a telescopic plate is fixedly connected to the inner wall of the outlet. The end of the telescopic plate is fixedly connected to the end of the second connecting frame away from the extrusion rod. An air inlet pipe extends through the outer side of the storage box, and the extrusion rod is movably connected to the inner cavity of the air inlet pipe. The sealing ring is squeezed and adapted to the inner wall of the air inlet pipe.

7. A wire harness with a flame-retardant device according to claim 6, characterized in that: A fan mechanism is provided on the outer side of the discharge port. The fan mechanism includes a second support rod, which is fixedly connected to the outer side of the discharge port. A limit sleeve is fixedly connected to the end of the second support rod. A rotating ball is rotatably connected to the inner cavity of the limit sleeve. A rotating column is fixedly connected to the side of the rotating ball away from the limit sleeve. A fan plate is fixedly connected to the outer surface of the rotating column. A friction wheel is fixedly connected to the end of the rotating column away from the rotating ball. The friction wheel is rubbed and adapted to the friction strip.

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