Flame-retardant cable for wind power generation
By using a C-type inner sheath, C-type outer sheath and traction rope in wind power cables, combined with the design of hot melt pins and clamping connection mechanisms, the problem of insufficient torsion resistance, tensile resistance and flame retardant performance of wind power cables in harsh environments is solved, and the efficient torsion resistance, tensile resistance and automatic fire protection effects of the cables are achieved.
Patent Information
- Application Number
- CN202510331848.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing wind power cables are difficult to effectively retardant while maintaining good tensile resistance and torsion resistance, resulting in fires prone to harsh environments such as strong winds, low temperatures, and high humidity.
The torsion-resistant mechanism including C-type inner sheath, C-type outer sheath and traction rope is adopted. Through the separation design of the C-type inner sheath and the C-type outer sheath and the action of the traction line, the cable's torsion and tensile resistance are enhanced. At the same time, when flames occur, the automatic separation of the joint and the connector is achieved through the hot melt pin and clamping connection mechanism to avoid the flame spread.
It effectively improves the torsion and tensile resistance of wind power cables, and at the same time, the automatic separation of the cable is achieved when a fire occurs, enhancing the flame retardant performance and safety of the cables.
Smart Images
Figure CN120148945A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power cables, and specifically, to a flame-retardant cable for wind power generation. Background Art
[0002] Wind power generation refers to a clean energy technology that converts wind energy into electrical energy. The wind drives the blades to rotate, and the blades drive the generator to convert mechanical energy into electrical energy. Wind power generation equipment is usually installed at sea or in open areas to facilitate the collection of greater wind energy. In these environments, the wind turbines usually face climatic environments such as strong winds, low temperatures, and high humidity. At the same time, when the wind power generation equipment is generating electricity, the blades will deflect with the wind direction, and the blades need to adjust the rotation speed according to the wind speed. During the power generation process, the power generation equipment will generate relatively large vibrations. All of these require the wind power generation cable to have strong anti-torsion performance. At the same time, in the wind power generation equipment, the cable is vertically suspended, and the cable will be stretched by its own weight, which requires the cable to have strong anti-stretching performance.
[0003] Sometimes electrical faults may occur in the cable during wind power generation, or the cable may be mechanically damaged, resulting in damage to the insulating material on the cable. Improper installation may also cause damage to the cable. At the same time, due to environmental factors, the cable may also be damaged. These faults and damages not only cause damage to the cable but also affect the flame-retardant performance of the cable, and are very likely to cause a fire. If a fire breaks out, it will cause great harm and losses. The existing wind power generation cables are flame-retarded by improving the composition of the outer insulating layer of the cable core. However, the insulating layer is easily damaged by the environment. Therefore, for the cables used in wind power generation, a cable that can effectively retard the flame while taking into account the anti-torsion and anti-stretching performance is needed. Summary of the Invention
[0004] The present invention provides a flame-retardant cable for wind power generation, which solves the problem in the prior art that it is sometimes difficult for wind power generation cables to retard the flame while maintaining good anti-stretching and anti-torsion properties.
[0005] The technical solution of the present invention is as follows: A flame-retardant cable for wind power generation, comprising a cable core, the cable core being composed of a plurality of wires, further comprising butt joints, C-shaped inner sheaths, connecting pieces and lifting brackets. Both ends of the cable core are fixedly connected with the butt joints. There are a plurality of C-shaped inner sheaths, and the plurality of C-shaped inner sheaths are sleeved on the cable core. An anti-torsion mechanism is sleeved on the C-shaped inner sheaths, and the anti-torsion mechanism is slidably connected with the plurality of C-shaped inner sheaths. Both of the butt joints are connected with the anti-torsion mechanism. The anti-torsion mechanism is used to prevent the cable core from being twisted too much. Both ends of the connecting piece can be detachably connected with the butt joints. The lifting bracket is fixedly connected to the wind power generation equipment, and the lifting bracket is detachably connected with the connecting piece. A clamping connection mechanism is arranged on the lifting bracket, and the clamping connection mechanism is detachably connected with the butt joint. The clamping connection mechanism is used to clamp and connect the butt joint and the connecting piece, and separate the butt joint and the connecting piece when a flame appears.
[0006] A plurality of annular grooves are formed on the C-shaped inner sheaths, and the opening directions of adjacent C-shaped inner sheaths are opposite. The plurality of C-shaped inner sheaths are sleeved on the cable core in an interleaved manner. The anti-torsion mechanism comprises a C-shaped outer sheath, a butt joint ring and traction wires. There are a plurality of C-shaped outer sheaths, and the plurality of C-shaped outer sheaths are sleeved on the C-shaped inner sheaths. A plurality of the annular grooves are formed on the inner side of the C-shaped outer sheath, and the annular grooves on the C-shaped outer sheath are docked with the annular grooves on the C-shaped inner sheath. The C-shaped outer sheath is arranged between two adjacent C-shaped inner sheaths. A butt joint ring is fixedly connected to one side of each butt joint close to the cable core. There are a plurality of traction wires, and both ends of the plurality of traction wires are fixedly connected with the two butt joint rings respectively. The plurality of traction wires penetrate and are fixedly connected with the plurality of C-shaped outer sheaths. A protective layer is sleeved on the C-shaped outer sheath and the traction wires.
[0007] A clamping groove one is formed on the inner side of the connecting piece, and a clamping groove two is formed on one side of the butt joint close to the cable core. The clamping groove one is detachably connected with the lifting bracket, and the clamping groove two is detachably connected with the clamping connection mechanism.
[0008] There are two clamping connection mechanisms, and the two clamping connection mechanisms are respectively arranged on both sides of the lifting bracket. The clamping connection mechanism comprises a clamping part one and a rotating locking assembly. The clamping part one is fixedly connected to both sides of the lifting bracket, and the clamping part one is detachably connected with the clamping groove one. The rotating locking assembly is rotatably arranged on the clamping part one. A clamping part two is rotatably connected to one side of the rotating locking assembly far away from the clamping part one, and the clamping part two is detachably connected with the clamping groove two. The rotating locking assembly is used to lift the clamping part two upward and lock it.
[0009] The rotating locking assembly includes a first C-shaped connecting rod, a second C-shaped connecting rod, and a rotating support rod. The first C-shaped connecting rod is rotatably connected to the first clamping member. A locking ring is fixedly connected to one side of the first C-shaped connecting rod close to the first clamping member. The second C-shaped connecting rod is rotatably connected to the second clamping member. The locking ring is fixedly connected to one side of the second C-shaped connecting rod close to the second clamping member. One end of the first C-shaped connecting rod away from the first clamping member is rotatably connected to one end of the rotating support rod. The other end of the second C-shaped connecting rod away from the second clamping member is rotatably connected to the other end of the rotating support rod.
[0010] One end of the rotating support rod rotatably connected to the first C-shaped connecting rod can be detachably connected to the locking ring on the second C-shaped connecting rod. One end of the rotating support rod rotatably connected to the second C-shaped connecting rod can be detachably connected to the locking ring on the first C-shaped connecting rod. Heat melting pins are detachably connected to both ends of the rotating support rod and the locking ring.
[0011] Limiting blocks are fixedly connected to both the first clamping member and the second clamping member. The limiting block on the first clamping member can contact the first C-shaped connecting rod. The limiting block on the second clamping member can contact the second C-shaped connecting rod.
[0012] The working principle and beneficial effects of the present invention are as follows: 1. In the present invention, by providing a C-shaped inner sheath, a C-shaped outer sheath, and a traction rope, when the cable is bent, the opening sides of the C-shaped inner sheath and the C-shaped outer sheath can open to maintain the support for the cable core. At the same time, for the annular grooves on the C-shaped inner sheath and the C-shaped outer sheath that are butt-jointed with each other, when the cable twists, the annular grooves on the C-shaped inner sheath and the C-shaped outer sheath rotate relative to each other. The separated design of the C-shaped inner sheath and the C-shaped outer sheath can prevent damage to the internal multi-layer insulation layer when the cable twists. Also, when the cable is stretched, the annular grooves on the C-shaped inner sheath and the C-shaped outer sheath support each other. When the stretching degree is relatively large, the C-shaped outer sheath can open, so that the annular groove on the C-shaped outer sheath slides to an adjacent annular groove on the C-shaped inner sheath. The traction line can pull the C-shaped outer sheath when the twisting angle of the C-shaped outer sheath is too large, avoiding excessive twisting angle, and at the same time enhancing the anti-tensile property; 2. In the present invention, by providing a rotating support rod and a hot-melt pin, when the rotating support rod is fixed to the locking ring using the hot-melt pin, the rotating support rod remains in a vertical state at this time. The first C-shaped connecting rod and the second C-shaped connecting rod pull the cable through the rotating support rod. When the rotating support rod remains vertical, the hot-melt pin only receives the force in the vertical direction of the rotating support rod. The hot-melt pin can be made of materials such as high-hardness and low-melting-point alloys or hard plastics. When a flame appears on the cable, the hot-melt pin melts or self-ignites, causing its structure to change and unable to connect the rotating support rod and the locking ring. At this time, the first C-shaped connecting rod, the second C-shaped connecting rod, and the rotating support rod will rotate under the drive of the self-weight of the cable, causing the docking head and the connecting piece to separate. At this time, the lower cable and the upper cable move away from each other, preventing the spread of the flame. 3. In the present invention, by providing an anti-torsion mechanism, the resistance of the cable core to physical damage and flame damage can be enhanced, and the cable core can be driven to twist back to its original state. By providing a clamping connection mechanism, the docking head and the connecting piece can be automatically separated when a flame appears. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0014] Figure 1 It is a schematic diagram of the overall structure in the present invention; Figure 2 It is a schematic diagram of the overall structure from another perspective in the present invention; Figure 3 It is a schematic diagram of the partial internal structure of the protective layer in the present invention; Figure 4 It is a schematic diagram of the partial internal structure of the cooperation between the C-shaped inner sheath and the C-shaped outer sheath in the present invention; Figure 5 It is a schematic diagram of the partial structure of the cooperation between the clamping connection mechanism and the connecting piece in the present invention; Figure 6 It is a schematic diagram of the structure of the cooperation between the locking ring and the rotating support rod in the present invention; Figure 7 It is a schematic diagram of the structure of the cooperation between the first C-shaped connecting rod and the second C-shaped connecting rod in the present invention.
[0015] In the figure: 1. Cable core; 2. Docking head; 3. C-shaped inner sheath; 4. Connecting piece; 5. Lifting bracket; 6. Annular groove; 7. C-shaped outer sheath; 8. Docking ring; 9. Traction wire; 10. Protective layer; 11. First card slot; 12. Second card slot; 13. First clamping part; 14. Second clamping part; 15. First C-shaped connecting rod; 16. Locking ring; 17. Second C-shaped connecting rod; 18. Rotating support rod; 19. Hot-melt pin; 20. Limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.
[0017] As Figures 1 to 7 shown, this embodiment provides a flame-retardant cable for wind power generation, including a cable core 1 composed of multiple wires, and further including a butt joint 2, a C-shaped inner sheath 3, a connecting piece 4, and a lifting bracket 5. Both ends of the cable core 1 are fixedly connected with a butt joint 2. There are multiple C-shaped inner sheaths 3, and the multiple C-shaped inner sheaths 3 are sleeved on the cable core 1. An anti-torsion mechanism is sleeved on the C-shaped inner sheath 3, and the anti-torsion mechanism is slidably connected with the multiple C-shaped inner sheaths 3. Both butt joints 2 are connected to the anti-torsion mechanism. The anti-torsion mechanism is used to prevent the cable core 1 from being twisted too much. Both ends of the connecting piece 4 can be detachably connected with the butt joint 2. The lifting bracket 5 is fixedly connected to the wind power generation equipment, and the lifting bracket 5 is detachably connected with the connecting piece 4. A clamping connection mechanism is arranged on the lifting bracket 5, and the clamping connection mechanism is detachably connected with the butt joint 2. The clamping connection mechanism is used to clamp and connect the butt joint 2 and the connecting piece 4, and separate the butt joint 2 and the connecting piece 4 when a flame appears. The C-shaped inner sheath 3 and the C-shaped outer sheath 7 are alternately sleeved on the cable core 1. On the one hand, it improves the physical protection of the cable core 1, on the other hand, it has flame retardancy, and at the same time provides a supporting force for the cable core 1 when it is bent and twisted. Through the clamping connection of the clamping connection mechanism to the connecting piece 4 and the butt joint 2, multiple cables are butt-jointed. When a burning flame appears, the clamping connection mechanism opens, and due to the self-weight of the cable, the butt joint 2 and the connecting piece 4 are separated. The lower cable bends downward and away, avoiding the transmission of the flame. Through the two aspects of flame retardancy of the cable core 1 and the separation of the cable when a flame appears, the spread of the flame is avoided.
[0018] As Figures 1 to 4As shown, multiple annular grooves 6 are provided on the C-shaped inner sheath 3, and the opening directions of adjacent C-shaped inner sheaths 3 are opposite. A plurality of C-shaped inner sheaths 3 are sleeved on the cable core 1 in an interlaced manner. The anti-torsion mechanism includes a C-shaped outer sheath 7, a docking ring 8, and a traction wire 9. A plurality of C-shaped outer sheaths 7 are provided, and a plurality of C-shaped outer sheaths 7 are sleeved on the C-shaped inner sheath 3. A plurality of annular grooves 6 are provided on the inner side of the C-shaped outer sheath 7, and the annular grooves 6 on the C-shaped outer sheath 7 are docked with the annular grooves 6 on the C-shaped inner sheath 3. The C-shaped outer sheath 7 is arranged between two adjacent C-shaped inner sheaths 3. A docking ring 8 is fixedly connected to one side of each docking head 2 close to the cable core 1. A plurality of traction wires 9 are provided, and both ends of the plurality of traction wires 9 are fixedly connected to the two docking rings 8 respectively. The plurality of traction wires 9 penetrate and are fixedly connected to a plurality of C-shaped outer sheaths 7. A protective layer 10 is sleeved outside the C-shaped outer sheath 7 and the traction wire 9. The C-shaped inner sheath 3 and the C-shaped outer sheath 7 are sleeved on the cable core 1 in an interlaced manner. And because the C-shaped inner sheath 3 and the C-shaped outer sheath 7 are provided with openings, when the cable is bent, the opening sides of the C-shaped inner sheath 3 and the C-shaped outer sheath 7 can open to maintain the support for the cable core 1. At the same time, for the annular grooves 6 on the C-shaped inner sheath 3 and the C-shaped outer sheath 7 that are docked with each other, when the cable is twisted, the annular grooves 6 on the C-shaped inner sheath 3 and the C-shaped outer sheath 7 rotate relative to each other. The separated design of the C-shaped inner sheath 3 and the C-shaped outer sheath 7 can prevent damage to the internal multi-layer insulation layer when it is twisted during cable torsion. Also, when the cable is stretched, the annular grooves 6 on the C-shaped inner sheath 3 and the C-shaped outer sheath 7 support each other. When the stretching degree is relatively large, the C-shaped outer sheath 7 can open, so that the annular grooves 6 on the C-shaped outer sheath 7 slide onto the adjacent annular grooves 6 on the C-shaped inner sheath 3. The traction wire 9 can pull the C-shaped outer sheath 7 when the torsion angle of the C-shaped outer sheath 7 is too large, avoiding too large a torsion angle and enhancing the anti-tensile property at the same time.
[0019] As Figures 1 to 2 shown, a clamping groove one 11 is provided on the inner side of the connecting piece 4, and a clamping groove two 12 is provided on one side of the docking head 2 close to the cable core 1. The clamping groove one 11 is detachably connected to the lifting bracket 5, and the clamping groove two 12 is detachably connected to the clamping connection mechanism.
[0020] As Figures 5 to 7As shown in the figure, there are two clamping connection mechanisms, which are respectively arranged on both sides of the lifting bracket 5. The clamping connection mechanism includes a first clamping part 13 and a rotating locking assembly. The first clamping part 13 is fixedly connected to both sides of the lifting bracket 5. The first clamping part 13 is detachably connected to the first clamping groove 11. The rotating locking assembly is rotatably arranged on the first clamping part 13. A second clamping part 14 is rotatably connected to the side of the rotating locking assembly far from the first clamping part 13. The second clamping part 14 is detachably connected to the second clamping groove 12. The rotating locking assembly is used to lift and lock the second clamping part 14 upward. The lifting bracket 5 holds and fixes the connecting part 4. By rotating the locking assembly, the cable below is docked with the connecting part 4. When a fire occurs, the rotating locking assembly is loosened to lower the cable below, avoiding the transmission of fire and protecting the circuit at the same time.
[0021] As Figures 5 to 7 shown in the figure, the rotating locking assembly includes a first C-shaped connecting rod 15, a second C-shaped connecting rod 17 and a rotating support rod 18. The first C-shaped connecting rod 15 is rotatably connected to the first clamping part 13. A locking ring 16 is fixedly connected to the side of the first C-shaped connecting rod 15 close to the first clamping part 13. The second C-shaped connecting rod 17 is rotatably connected to the second clamping part 14. A locking ring 16 is fixedly connected to the side of the second C-shaped connecting rod 17 close to the second clamping part 14. One end of the first C-shaped connecting rod 15 far from the first clamping part 13 is rotatably connected to one end of the rotating support rod 18. The other end of the second C-shaped connecting rod 17 far from the second clamping part 14 is rotatably connected to the other end of the rotating support rod 18. After the second clamping part is docked with the second clamping groove 12, the rotating support rod 18 is rotated. At this time, the second C-shaped connecting rod 17 drives the docking head 2 to move upward. When the rotating support rod 18 rotates 180 degrees and remains vertical again, the docking head 2 is docked with the connecting part 4 at this time.
[0022] As Figures 5 to 7As shown in the figure, one end of the rotating strut 18 that is rotatably connected to the first C-shaped connecting rod 15 can be detachably connected to the locking ring 16 on the second C-shaped connecting rod 17. One end of the rotating strut 18 that is rotatably connected to the second C-shaped connecting rod 17 can be detachably connected to the locking ring 16 on the first C-shaped connecting rod 15. Both ends of the rotating strut 18 and the locking ring 16 are detachably connected with hot-melt pins 19. When using the hot-melt pins 19 to fix the rotating strut 18 and the locking ring 16, at this time, the rotating strut 18 maintains a vertical state. The first C-shaped connecting rod 15 and the second C-shaped connecting rod 17 pull the cable through the rotating strut 18. When the rotating strut 18 is vertical, the hot-melt pin 19 only receives the force in the vertical direction of the rotating strut 18. The hot-melt pin 19 can be made of materials such as high-hardness and low-melting-point alloys or hard plastics. When there is a flame on the cable, the hot-melt pin 19 melts or self-ignites, making its structure change and unable to connect the rotating strut 18 and the locking ring 16. At this time, the first C-shaped connecting rod 15, the second C-shaped connecting rod 17 and the rotating strut 18 will rotate under the drive of the self-weight of the cable, causing the docking head 2 and the connecting piece 4 to separate. At this time, the lower cable and the upper cable move away from each other to avoid the spread of the flame.
[0023] As Figures 5 to 7 shown in the figure, limit blocks 20 are fixedly connected to both the first clamping part 13 and the second clamping part 14. The limit block 20 on the first clamping part 13 can contact the first C-shaped connecting rod 15, and the limit block 20 on the second clamping part 14 can contact the second C-shaped connecting rod 17. The limit block 20 can prevent the first C-shaped connecting rod 15 and the second C-shaped connecting rod 17 from rotating in the opposite direction of the rotational opening, avoiding the jamming of the rotating strut 18 after the first C-shaped connecting rod 15 and the second C-shaped connecting rod 17 rotate in the reverse direction, and the rotating strut 18 cannot rotate and open after the hot-melt pin 19 is damaged.
[0024] In this embodiment, a C-shaped inner sheath 3 and a C-shaped outer sheath 7 are sleeved on the cable core 1, and the C-shaped outer sheath 7 is stretched by the traction line 9. When the cable twists, the traction rope stretches the C-shaped outer sheath 7 to avoid excessive twisting angle of the C-shaped outer sheath 7. The connecting piece 4 is placed on the support frame 5. Align the first slot 11 with the first clamping part 13 and the second slot 12 with the second clamping part 14. Rotate the rotating strut 18 to drive the second C-shaped connecting rod 17 to move upward and drive the cable to rise. When both ends of the rotating strut 18 are aligned with the locking ring 16, the docking head 2 and the connecting piece 4 are docked. Insert the hot-melt pin 19 into the locking ring 16. When there is a flame, the hot-melt pin 19 is damaged and the rotating strut 18 rotates, and the self-weight of the cable causes the docking head 2 and the connecting piece 4 to separate.
[0025] The above are only the 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 shall be included in the protection scope of the present invention.
Claims
1. A flame-retardant cable for wind power generation, comprising a cable core (1), wherein the cable core (1) is composed of a plurality of conductors, characterized in that: Also includes: A butt joint (2), both ends of the cable core (1) being fixedly connected to the butt joint (2); A C-shaped inner sheath (3), wherein a plurality of the C-shaped inner sheaths (3) are provided, the plurality of the C-shaped inner sheaths (3) are sleeved on the cable core (1), and an anti-torsion mechanism is sleeved on the C-shaped inner sheath (3); The anti-twist mechanism is slidably connected to the plurality of C-shaped inner sheaths (3), and the two butt joints (2) are both connected to the anti-twist mechanism, and the anti-twist mechanism is used to prevent the cable core (1) from being subjected to excessive torsion; A connecting piece (4), both ends of which can be detachably connected to the docking joint (2); A lifting frame (5), the lifting frame (5) being fixedly connected to the wind power generation equipment, the lifting frame (5) being detachably connected to the connecting member (4), and a clamping connection mechanism being provided on the lifting frame (5); The clamping connection mechanism is detachably connected to the butt joint (2), and is used to clamp the butt joint (2) and the connecting piece (4) together, and to separate the butt joint (2) and the connecting piece (4) when a flame occurs.
2. A flame-retardant cable for wind power generation according to claim 1, characterized in that: The C-shaped inner sheath (3) is provided with a plurality of annular grooves (6), the opening directions of adjacent C-shaped inner sheaths (3) are opposite, and a plurality of C-shaped inner sheaths (3) are alternately sleeved on the cable core (1).
3. A flame-retardant cable for wind power generation according to claim 2, characterized in that: The anti-torsion mechanism comprises: A C-shaped outer sheath (7), wherein a plurality of the C-shaped outer sheaths (7) are provided, and the plurality of the C-shaped outer sheaths (7) are sleeved on the C-shaped inner sheath (3); a plurality of the annular grooves (6) are provided on the inner side of the C-shaped outer sheath (7); the annular grooves (6) on the C-shaped outer sheath (7) are connected to the annular grooves (6) on the C-shaped inner sheath (3); and the C-shaped outer sheath (7) is provided between two adjacent C-shaped inner sheaths (3); A butt joint ring (8), wherein the butt joint ring (8) is fixedly connected to a side of each butt joint (2) close to the cable core (1); A traction line (9), wherein a plurality of traction lines (9) are provided, and two ends of the plurality of traction lines (9) are respectively fixedly connected to the two docking rings (8).
4. A flame-retardant cable for wind power generation according to claim 3, characterized in that: The plurality of traction wires (9) penetrate through and are fixedly connected to the plurality of C-shaped outer sheaths (7), and the C-shaped outer sheaths (7) and the traction wires (9) are covered with a protective layer (10) on the outside.
5. A flame-retardant cable for wind power generation according to claim 4, characterized in that: A first card slot (11) is provided on the inner side of the connecting member (4), and a second card slot (12) is provided on the side of the butt joint (2) close to the cable core (1). The first card slot (11) is detachably connected to the supporting frame (5), and the second card slot (12) is detachably connected to the clamping connection mechanism.
6. A flame-retardant cable for wind power generation according to claim 5, characterized in that: Two clamping connection mechanisms are provided, and the two clamping connection mechanisms are respectively provided on both sides of the lifting frame (5), and the clamping connection mechanism comprises: A clamping piece 1 (13), wherein the clamping piece 1 (13) is fixedly connected to two sides of the lifting frame (5), and the clamping piece 1 (13) is detachably connected to the clamping slot 1 (11); A rotation locking assembly, the rotation locking assembly is rotationally arranged on the first clamping member (13), and a second clamping member (14) is rotationally connected to the rotation locking assembly on a side away from the first clamping member (13), the second clamping member (14) is detachably connected to the second clamping slot (12), and the rotation locking assembly is used to lift the second clamping member (14) upward and lock it.
7. A flame-retardant cable for wind power generation according to claim 6, characterized in that: The rotation locking assembly comprises: A C-shaped connecting rod (15), the C-shaped connecting rod (15) being rotatably connected to the clamping member (13), and a locking ring (16) being fixedly connected to a side of the C-shaped connecting rod (15) close to the clamping member (13); A second C-shaped connecting rod (17), the second C-shaped connecting rod (17) being rotatably connected to the second clamping member (14), and the locking ring (16) being fixedly connected to a side of the second C-shaped connecting rod (17) close to the second clamping member (14); A rotating support rod (18), wherein one end of the C-shaped connecting rod (15) away from the clamping member (13) is rotatably connected to one end of the rotating support rod (18), and one end of the C-shaped connecting rod (17) away from the clamping member (14) is rotatably connected to the other end of the rotating support rod (18).
8. A flame-retardant cable for wind power generation according to claim 7, characterized in that: One end of the rotating support rod (18) that is rotatably connected to the C-type connecting rod one (15) can be detachably connected to the locking ring (16) on the C-type connecting rod two (17); one end of the rotating support rod (18) that is rotatably connected to the C-type connecting rod two (17) can be detachably connected to the locking ring (16) on the C-type connecting rod one (15); both ends of the rotating support rod (18) and the locking ring (16) are detachably connected with hot melt pins (19).
9. A flame-retardant cable for wind power generation according to claim 8, characterized in that: The first clamping member (13) and the second clamping member (14) are both fixedly connected with a limit block (20); the limit block (20) on the first clamping member (13) can contact the first C-shaped connecting rod (15), and the limit block (20) on the second clamping member (14) can contact the second C-shaped connecting rod (17).