Highway electromechanical equipment cable fixing device

Abstract

The application discloses a highway electromechanical equipment cable fixing device, which comprises a rectangular base, two parallel U-shaped clamping grooves arranged on the top surface of the base, two slide rails arranged on the two sides of the base and extending along the length direction, and mounting holes arranged on the bottom surface of the base; the U-shaped clamping groove comprises a first side plate, a second side plate and a connecting plate, a cable accommodating channel is formed between the first side plate and the second side plate, the first side plate and the second side plate are inclined outward by 8-12 degrees relative to the connecting plate to form a horn-shaped opening, an elastic clamping block is arranged in the U-shaped clamping groove, the cross section of the elastic clamping block is in a wave shape, the bottom of the elastic clamping block is fixedly connected with the connecting plate, and the top of the elastic clamping block is provided with an arc-shaped recess in contact with the cable; a slideable adjusting structure is embedded in the slide rail, the adjusting structure comprises a support rod perpendicular to the slide rail, and a pressing plate is connected to the end of the support rod through a hinge; a locking bolt is arranged between the support rod and the slide rail, positioning holes are arranged on the surface of the slide rail in a spaced arrangement mode, and the locking bolt penetrates through the support rod and is inserted into the positioning holes.

Description

Technical Field

[0001] This invention relates to the field of traffic engineering facilities technology, and more specifically, to a cable fixing device for highway electromechanical equipment. Background Technology

[0002] In existing highway electromechanical equipment wiring systems, the reliability and adaptability of cable fixing devices directly affect the stability of equipment operation. Traditional fixing devices mostly use rigid clamp structures, which have the following technical defects: First, the fixed angle of the fixing slot opening can easily lead to insufficient clamping force and cable slippage when cable diameters vary or multiple cables need to be bundled. Second, existing adjustment mechanisms mostly use bolts for direct fastening, which are prone to loosening under vibration and require frequent maintenance. Third, adjusting the installation position of the fixing device is difficult, usually requiring disassembly and repositioning, affecting construction efficiency. The main reasons for this are due to unreasonable structural design: the fixing slot lacks an adaptive clamping structure, failing to compensate for differences in cable size; the adjustment mechanism lacks multi-level positioning and self-locking functions; and the mounting base lacks vibration damping design, leading to stress concentration. Furthermore, in terms of material application, conventional rubber clamps have problems with high hardness and insufficient elastic recovery, making them prone to plastic deformation after long-term use. Existing technologies attempt to improve the fixing effect by increasing the number of clamping bolts or using spring washers, but this increases structural complexity and maintenance costs. The challenges encountered during the research and development process included: how to achieve stable clamping of cables of various sizes without increasing the structural weight; how to design a quick adjustment mechanism while ensuring positioning accuracy; and how to improve the vibration resistance of the fixing device in complex environments.

[0003] Therefore, there is an urgent need for a reliable cable fixing device for highway electromechanical equipment that can improve construction efficiency. Summary of the Invention

[0004] One object of the present invention is to address at least the aforementioned deficiencies and to provide at least the advantages that will be described later.

[0005] To achieve these objectives and other advantages of the present invention, the present invention provides a cable fixing device for highway electromechanical equipment, comprising: a rectangular base, the top surface of which is provided with two parallel extending U-shaped slots, and the sides of which are provided with slide rails extending along the length direction; the bottom surface of the base is provided with uniformly distributed mounting holes, each mounting hole containing an anti-loosening nut, and a spring washer between the anti-loosening nut and the bottom surface of the base; the U-shaped slots include a first side plate, a second side plate, and a connecting plate, the first side plate and the second side plate forming a cable receiving channel, and the first side plate and the second side plate being inclined outwards by 8~1 degrees relative to the connecting plate. The U-shaped groove is equipped with an elastic clamping block. The cross-section of the elastic clamping block is wavy, and its bottom is fixedly connected to the connecting plate. The top is provided with an arc-shaped recess that contacts the cable. The slide rail is embedded with a sliding adjustment structure, which includes a support rod perpendicular to the slide rail. The end of the support rod is provided with a pressure plate connected by a hinge. A locking bolt is provided between the support rod and the slide rail. The surface of the slide rail is provided with spaced positioning holes. The locking bolt passes through the support rod and is inserted into the positioning hole. The spacing between the positioning holes is 5~6mm, and the height of the limiting boss is 3~4mm.

[0006] Preferably, the wavy cross-section of the elastic clamp includes alternating peaks and troughs, with a peak spacing of 6-7 mm and a trough depth of 1.2-1.8 mm; the peak tops are provided with axially extending anti-slip textures with a texture spacing of 0.8-1 mm; the material of the elastic clamp is rubber with 18-22% silicon carbide whiskers added by mass, and a Shore hardness of 58-62A.

[0007] Preferably, the radius of curvature R of the arc-shaped recess at the top of the elastic clamp is related to the nominal diameter d of the cable as R = 0.6d ± 0.05mm, and the surface of the arc-shaped recess is provided with diamond-shaped anti-slip protrusions with a height of 0.2~0.4mm and a density of 20~30 protrusions / cm².

[0008] Preferably, the slide rail is embedded with a magnetorheological fluid layer, which contains carbonyl iron powder particles with a particle size of 6~8μm; the bottom of the support rod is integrated with an electromagnetic coil, and the viscosity of the magnetorheological fluid increases to 60~80kPa·s when the electromagnetic coil is energized.

[0009] Preferably, the hinge between the pressure plate and the support rod is a flexible silicone structure with a Shore hardness that decreases continuously from 55A at the root of the hinge to 40A at the end, allowing the pressure plate to self-adaptively deflect within the range of 0 to 60°.

[0010] Preferably, the first side plate and the second side plate are inclined outward at 5 to 15 degrees relative to the connecting plate to form a trumpet-shaped opening; the connecting plate has an arc-shaped recess in the middle with a depth of 1.5 to 3 mm, and a transverse reinforcing rib is provided at the bottom of the arc-shaped recess; the top edges of the first side plate and the second side plate are provided with guide chamfers with a chamfer angle of 30 to 45 degrees.

[0011] Preferably, the magnetorheological fluid layer further disperses 0.8-1.0% by mass of nano-silica dispersant, the surface of which is modified with aminosilane, and its average particle size is 30-40 nm, with a particle size ratio of 1:150-1:180 to carbonyl iron powder particles; when the operating current of the electromagnetic coil is 0.5-1.0 A, the viscosity of the magnetorheological fluid increases from the initial value of 200-300 mPa•s to 60-80 kPa•s within 50 ms, and recovers to 102-108% of the initial viscosity within 80-120 ms after power failure; the sedimentation rate of the magnetorheological fluid after standing at 25°C for 24 hours is less than 4%, and the viscosity change rate after 20 temperature cycles from -20°C to 80°C does not exceed ±5%.

[0012] Preferably, the flexible silicone structure contains 3-5% by mass of oriented carbon nanotube bundles, with the axial direction of the carbon nanotube bundles forming an angle of 15-30° with the extension direction from the root to the end of the hinge. The length of a single bundle of carbon nanotubes is 50-80 μm and the diameter distribution is 20-40 nm. The thickness of the hinge cross section decreases continuously from 2.5-3 mm at the root to 1.2-1.8 mm at the end, and biomimetic honeycomb micropores with a pore size of 100-300 μm are embedded in the thickness direction. The micropore density increases gradually from 5-8 micropores / mm² at the root to 12-15 micropores / mm² at the end.

[0013] Preferably, the bottom of the elastic clamping block forms a molecular-level bonding interface with the arc-shaped recess of the connecting plate through a hot vulcanization bonding process. The bonding layer has a thickness of 0.2~0.5mm and contains oriented carbon fiber reinforcement phase. The axial direction of the carbon fiber forms a 45° angle with the extension direction of the wave crest of the elastic clamping block.

[0014] Preferably, in the hot vulcanization bonding process, the carbon fiber reinforcing phase is oriented and controlled by a magnetic field. The carbon fiber surface is coated with a Fe3O4 coating with a thickness of 50~100nm, forming a precise orientation of 45°±2° under the action of a gradient magnetic field of 0.5~1.2T. The bonding layer contains self-healing microcapsules with a particle size of 20~50μm, which contain a two-component epoxy resin repair agent. When the interface crack extends to the microcapsule, the repair agent is released to form a three-dimensional cross-linked network.

[0015] Advantages of this invention: First, the cable fixing device for highway electromechanical equipment of the present invention makes cable insertion smoother through the flared opening design, the wave-shaped elastic clamp provides progressive clamping force, the positioning holes with a spacing of 5~6mm realize precise position adjustment, and the spring washer effectively absorbs vibration energy, thus comprehensively improving the fixing reliability and construction efficiency.

[0016] Secondly, in the cable fixing device for highway electromechanical equipment of the present invention, the silicon carbide whisker-reinforced rubber matrix makes the elastic clamp block have both high elasticity and wear resistance, the crest and trough structure increases the contact area, and the axial anti-slip texture improves the anti-slip coefficient by more than 15%.

[0017] Furthermore, in the cable fixing device for highway electromechanical equipment of the present invention, the curvature of the arc-shaped concave is matched with the diameter of the cable, increasing the contact area by 30%, and the diamond-shaped protrusion generates a micro-interlocking effect, increasing the dynamic friction coefficient to 0.45~0.55.

[0018] Furthermore, in the highway electromechanical equipment wiring fixing device of the present invention, the viscosity of the magnetorheological fluid increases by more than 200 times after energization, forming a near-solid support layer, which increases the anti-slip force by 3 to 5 times.

[0019] Furthermore, the gradient hardness silicone hinge in the highway electromechanical equipment wiring fixing device of the present invention achieves 60° adaptive deflection, meets the requirements of complex wiring angles, and extends the fatigue life to more than 100,000 cycles.

[0020] Furthermore, in the cable fixing device for highway electromechanical equipment of the present invention, the reinforcing rib increases the bending strength of the connecting plate by 40%, and the guide chamfer reduces the wear rate of the cable sheath by 15%.

[0021] Furthermore, the nano-silica in the highway electromechanical equipment wiring fixing device of the present invention improves the dispersion stability of the magnetorheological fluid, reduces the sedimentation rate to below 4%, and extends the temperature adaptability to -20~80℃.

[0022] Furthermore, in the highway electromechanical equipment wiring fixing device of the present invention, the oriented carbon nanotube bundle increases the tensile strength of the hinge by 80%, and the honeycomb microporous structure makes the stress distribution more uniform.

[0023] Furthermore, in the highway electromechanical equipment wiring fixing device of the present invention, a carbon fiber 45° reinforced network is formed with magnetic field assistance, which increases the interfacial bonding strength by 50% and significantly improves the anti-peeling performance.

[0024] Furthermore, the self-healing microcapsules in the highway electromechanical equipment wiring fixing device of the present invention enable automatic repair of cracks and improve the interface strength retention rate after repair. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a highway electromechanical equipment cable fixing device according to the present invention; Figure 2 This is a schematic diagram of the elastic clamping block in the cable fixing device for highway electromechanical equipment of the present invention.

[0026] In the figure, there is a rectangular base 1, a U-shaped slot 11, a first side plate 111, a second side plate 112, a connecting plate 113, a slide rail 12, a mounting hole 13, an elastic clamping block 2, an adjusting structure 3, a support rod 31, and a pressure plate 32. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation plan are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] Figure 1This invention illustrates one embodiment of a cable fixing device for highway electromechanical equipment, comprising: a rectangular base 1, with two parallel U-shaped slots 11 on the top surface of the base, and slide rails 12 extending along the length direction on both sides of the base; uniformly distributed mounting holes 13 on the bottom surface of the base, with anti-loosening nuts installed in the mounting holes 13, and spring washers between the anti-loosening nuts and the bottom surface of the base; the U-shaped slots 11 include a first side plate 111, a second side plate 112, and a connecting plate 113, with a cable receiving channel formed between the first side plate 111 and the second side plate 112, and the first side plate 111 and the second side plate 112 inclined outwards at an angle of 8-10 degrees relative to the connecting plate 113. The U-shaped groove 11 is provided with an elastic clamping block 2. The cross-section of the elastic clamping block 2 is wavy. Its bottom is fixedly connected to the connecting plate 113, and its top is provided with an arc-shaped recess for contacting the cable. The slide rail 12 is embedded with a slidable adjustment structure 3. The adjustment structure 3 includes a support rod 31 perpendicular to the slide rail 12. The end of the support rod 31 is provided with a pressure plate 32 connected by a hinge. A locking bolt is provided between the support rod 31 and the slide rail 12. The surface of the slide rail 12 is provided with positioning holes arranged at intervals. The locking bolt passes through the support rod 31 and is inserted into the positioning hole. The spacing of the positioning holes is 5~6mm, and the height of the limiting boss is 3~4mm.

[0032] In this implementation plan, specifically, the rectangular base is extruded from 6063-T5 aluminum alloy, measuring 600mm in length, 80mm in width, and 25mm in height. Two parallel U-shaped slots are machined on the top surface, with a slot spacing of 40mm. Each U-shaped slot consists of a first side plate, a second side plate, and a connecting plate, with the side plates tilted outwards at a 10° angle to form a flared opening. The elastic clamping block is injection molded, with its bottom vulcanized and bonded to the groove of the connecting plate. The top arc-shaped recess has a curvature radius designed to be R=0.6d. The slide rail is arranged along the length of the base, and its embedded adjustment structure allows it to slide along the guide rail. The support rod is made of 304 stainless steel, with a diameter of 8mm, and its end pressure plate is connected via a silicone hinge. M5 hexagonal socket head cap screws are used for locking, aligning with the slide rail positioning holes to achieve 5mm increments of adjustment. An 8.8 grade anti-loosening nut is fitted into the mounting hole 102, working with a spring washer to achieve a shock-resistant connection. During actual installation, the construction personnel first fix the base in the predetermined position through the mounting holes, and then guide the cable into the slot through the flared opening. The wave-like structure of the elastic clamping block undergoes radial deformation under pressure, with the crests making multi-point contact with the cable surface. Simultaneously, the inclined side plate design allows for moderate elastic deformation of the clamping block to compensate for differences in cable diameter. As the adjustment structure moves along the slide rail, locking bolts can be quickly inserted into different positioning holes to fix the position, and the pressure plate at the end of the support rod provides auxiliary clamping force above the cable bundle. This structure enables rapid cable installation and reliable fixation, making it particularly suitable for construction scenarios requiring frequent adjustments to cable routing.

[0033] Furthermore, in another embodiment, the wavy cross-section of the elastic clamp 2 includes alternating peaks and troughs, with a peak spacing of 6-7 mm and a trough depth of 1.2-1.8 mm; the peak tops are provided with axially extending anti-slip textures with a texture spacing of 0.8-1 mm; the material of the elastic clamp 2 is rubber with 18-22% silicon carbide whiskers added by mass, and a Shore hardness of 58-62A.

[0034] In this implementation plan, the anti-slip texture is specifically laser-engraved. The material formula consists of 60% natural rubber, 20% silicon carbide whiskers, and 2% vulcanizing agent, which are mixed in an internal mixer and then vulcanized at 170°C. During the production of the elastic clip, the silicon carbide whiskers are surface-treated and then uniformly mixed with the rubber matrix, and vulcanized at high temperature in a mold. The anti-slip texture at the crest is formed by precision mold etching, with the texture direction perpendicular to the cable axis to enhance the anti-slip effect. Actual tests show that the clip can generate 35N of static friction force when subjected to 10N radial pressure, which is about 45% higher than that of traditional rubber clips. Long-term aging tests show that the addition of silicon carbide whiskers reduces the material's compression set to 12%, which is far better than the 25% deformation rate of conventional rubber.

[0035] Furthermore, in another embodiment, the relationship between the radius of curvature R of the arc-shaped recess at the top of the elastic clamp 2 and the nominal diameter d of the cable is R=0.6d±0.05mm, and the surface of the arc-shaped recess is provided with diamond-shaped anti-slip protrusions with a height of 0.2~0.4mm and a density of 20~30 pieces / cm².

[0036] In this implementation scheme, specifically, the rhomboid protrusions on the arc-shaped concave surface are fabricated using micro-nano manufacturing technology. Each protrusion has a pyramid structure with a base side length of 0.2 mm. During cable installation, the tips of the protrusions undergo localized deformation and embed into the cable sheath surface, creating a mechanical interlocking effect. In dynamic vibration testing, the fixing device equipped with these protrusions can control the cable displacement to within 0.3 mm, a 65% reduction compared to a planar structure. Simultaneously, the rhomboid arrangement ensures that protrusions participate in friction in all directions, preventing cable rotation and slippage.

[0037] Furthermore, in another embodiment, the slide rail 12 is embedded with a magnetorheological fluid layer, which contains carbonyl iron powder particles with a particle size of 6~8μm; the bottom of the support rod is integrated with an electromagnetic coil, and when the electromagnetic coil is energized, the viscosity of the magnetorheological fluid increases to 60~80kPa·s.

[0038] In this implementation scheme, specifically, the control circuit of the magnetorheological fluid system is integrated inside the support rod, and the electromagnetic field strength is adjusted using pulse width modulation. When abnormal vibration is detected, the control system automatically energizes, causing the viscosity of the magnetorheological fluid to increase instantaneously, forming a rigid support. Actual measurement data shows that the transverse shear force resistance of the adjustment structure reaches 850N under energized conditions, which is 4.2 times that under unenergized conditions. This system is particularly suitable for road sections with frequent vibrations, such as bridges, and can effectively suppress fretting wear of cables.

[0039] Furthermore, in another embodiment, the hinge between the pressure plate 32 and the support rod 31 is a flexible silicone structure with a Shore hardness that continuously decreases from 55A at the root of the hinge to 40A at the end, allowing the pressure plate to self-adaptively deflect within the range of 0 to 60°.

[0040] In this implementation scheme, specifically, the silicone hinge is manufactured using a layered injection molding process, achieving gradual hardness changes by controlling the vulcanization temperature gradient. During injection molding, the carbon nanotube bundles are oriented under the influence of an electric field, significantly improving the hinge's bending resistance. In practical use, the pressure plate can adapt to the undulating shape of the cable bundle, freely deflecting within a 60° range without stress concentration. Accelerated aging tests show that the hinge maintains good flexibility even at -40°C, with a bending life exceeding 150,000 cycles.

[0041] Furthermore, in another embodiment, the first side plate 111 and the second side plate 112 are inclined outward at 5 to 15 degrees relative to the connecting plate 113 to form a trumpet-shaped opening; the connecting plate 113 has an arc-shaped recess in the middle with a depth of 1.5 to 3 mm, and a transverse reinforcing rib is provided at the bottom of the arc-shaped recess; the top edges of the first side plate 111 and the second side plate 112 are provided with guide chamfers with a chamfer angle of 30 to 45 degrees.

[0042] In this implementation scheme, specifically, a 2mm deep arc-shaped recess is formed in the center of the connecting plate through precision stamping, with transverse reinforcing ribs arranged every 15mm in the recessed area. The reinforcing ribs have a trapezoidal cross-section, with a bottom width of 3mm, a top width of 1.5mm, and a height of 1.2mm, effectively improving the bending stiffness of the connecting plate. The 40° guide chamfer at the top of the side plate is machined using a double-edged milling cutter, and the surface roughness of the chamfer is controlled below Ra1.6. During actual installation, the friction during cable insertion is reduced by 38%, and finite element analysis shows that the reinforcing ribs reduce the deformation of the connecting plate from 1.2mm to 0.7mm when subjected to a 50N lateral force. This design is particularly suitable for large-span cable tray sections, effectively preventing tray deformation caused by its own weight.

[0043] Furthermore, in another embodiment, the magnetorheological fluid layer also disperses 0.8-1.0% by mass of nano-silica dispersant. The surface of the nano-silica is modified with aminosilane, and its average particle size is 30-40 nm, with a particle size ratio of 1:150-1:180 to carbonyl iron powder particles. When the operating current of the electromagnetic coil is 0.5-1.0 A, the viscosity of the magnetorheological fluid increases from the initial value of 200-300 mPa•s to 60-80 kPa•s within 50 ms, and recovers to 102-108% of the initial viscosity within 80-120 ms after power failure. The sedimentation rate of the magnetorheological fluid after standing at 25°C for 24 hours is less than 4%, and the viscosity change rate after 20 temperature cycles from -20°C to 80°C does not exceed ±5%.

[0044] In this implementation scheme, specifically, the stability of the magnetorheological fluid system is improved through nano-modification. During preparation, aminosilane-modified 35nm silica and carbonyl iron powder are dispersed in a specific ratio in the synthetic ester base solution and treated with an ultrasonic homogenizer for 2 hours. After standing at 25℃ for 30 days, the sedimentation rate, as measured by a laser particle size analyzer, is only 3.5%. In temperature cycling tests, after 20 cycles of alternating temperatures from -20℃ to 80℃, the viscosity fluctuation of the magnetorheological fluid is controlled within ±4.8%. In practical applications, the electromagnetic coil is powered by a constant current of 0.75A, the system response time is 58ms, and the magnetorheological fluid recovers its flow state within 105ms after power failure, ensuring that the adjustment mechanism can be both quickly locked and flexibly adjusted.

[0045] Furthermore, in another embodiment, the flexible silicone structure contains 3-5% by mass of oriented carbon nanotube bundles. The axial direction of the carbon nanotube bundles forms an angle of 15-30° with the extension direction from the root to the end of the hinge. The length of a single bundle of carbon nanotubes is 50-80 μm and the diameter distribution is 20-40 nm. The thickness of the hinge cross section decreases continuously from 2.5-3 mm at the root to 1.2-1.8 mm at the end, and biomimetic honeycomb micropores with a pore size of 100-300 μm are embedded in the thickness direction. The micropore density increases gradually from 5-8 micropores / mm² at the root to 12-15 micropores / mm² at the end.

[0046] In this specific implementation, the carbon nanotube bundle 431 has a length of 60 μm and an orientation angle of 25°. The hinge cross-section is configured with gradient micropores, with a root pore diameter of 200 μm and a tip diameter of 100 μm. Dynamic load testing shows an 85% increase in tear resistance and a 40% improvement in energy absorption efficiency.

[0047] Furthermore, in another embodiment, the bottom of the elastic clamp 2 forms a molecular-level bonding interface with the arc-shaped recess of the connecting plate through a hot vulcanization bonding process. The bonding layer has a thickness of 0.2~0.5mm and contains oriented carbon fiber reinforcement phase. The axial direction of the carbon fiber forms a 45° angle with the extension direction of the wave crest of the elastic clamp.

[0048] In this implementation scheme, specifically, the adhesive layer is formed using magnetic field-assisted molding, with carbon fibers oriented at 45° under a 0.8T magnetic field. The layer thickness is 0.3mm, containing self-healing microcapsules with a particle size of 35μm. Three-point bending tests show that the interfacial peel strength reaches 8.5MPa, and the crack propagation rate is reduced by 60%.

[0049] Furthermore, in another embodiment, in the hot vulcanization bonding process, the carbon fiber reinforcing phase is oriented and controlled by a magnetic field. The carbon fiber surface is coated with a Fe3O4 coating with a thickness of 50~100nm, forming a precise orientation of 45°±2° under the action of a gradient magnetic field of 0.5~1.2T. The bonding layer contains self-healing microcapsules with a particle size of 20~50μm, which contain a two-component epoxy resin repair agent. When the interface crack extends to the microcapsule, the repair agent is released to form a three-dimensional cross-linked network.

[0050] In this implementation scheme, specifically, the bonding interface is enhanced with magnetic field assistance. During construction, after applying an adhesive containing Fe3O4-coated carbon fibers, a 0.9T gradient magnetic field is applied and maintained for 20 minutes, causing the fibers to be arranged in a 45° cross pattern. Tensile testing of the cured adhesive layer showed a peel strength of 9.2 MPa, a 55% improvement compared to a randomly distributed structure. The self-healing microcapsules are prepared using in-situ polymerization, with a melamine resin shell and an epoxy resin and latent curing agent in the core. When a crack with a width >50 μm occurs at the interface, the microcapsule ruptures and releases the repair agent; after 24 hours of self-repair, the interface strength recovers to 87% of its original value. This technology significantly extends the service life of the elastic clip.

[0051] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Further modifications can be readily implemented by those skilled in the art.

Claims

1. A cable fixing device for highway electromechanical equipment, characterized in that, include: A rectangular base has two parallel U-shaped slots on its top surface and slide rails extending along its length on both sides. The bottom surface of the base has evenly distributed mounting holes with anti-loosening nuts inside. A spring washer is placed between the anti-loosening nut and the bottom surface of the base. The U-shaped slot includes a first side plate, a second side plate, and a connecting plate. A cable receiving channel is formed between the first side plate and the second side plate, and the first side plate and the second side plate are inclined upward at 8 to 12 degrees relative to the connecting plate to form a trumpet-shaped opening. The U-shaped slot is equipped with an elastic clamping block. The cross-section of the elastic clamping block is wavy. Its bottom is fixedly connected to the connecting plate, and its top is provided with an arc-shaped recess that contacts the cable. The slide rail is embedded with a sliding adjustment structure, which includes a support rod perpendicular to the slide rail. The end of the support rod is provided with a pressure plate connected by a hinge. A locking bolt is provided between the support rod and the slide rail. The slide rail surface is provided with positioning holes arranged at intervals. The locking bolt passes through the support rod and is inserted into the positioning hole. The spacing between the positioning holes is 5~6mm; The hinge between the pressure plate and the support rod is a flexible silicone structure with a Shore hardness that decreases continuously from 55A at the root of the hinge to 40A at the end, allowing the pressure plate to self-adaptively deflect within the range of 0 to 60°.

2. The cable fixing device for highway electromechanical equipment as described in claim 1, characterized in that, The wavy cross-section of the elastic clamp includes alternating peaks and troughs, with a peak spacing of 6-7 mm and a trough depth of 1.2-1.8 mm; the top of the peak is provided with axially extending anti-slip textures, with an anti-slip texture spacing of 0.8-1 mm; the material of the elastic clamp is rubber with 18-22% silicon carbide whiskers added by mass, and a Shore hardness of 58-62A.

3. The cable fixing device for highway electromechanical equipment as described in claim 1, characterized in that, The radius of curvature R of the arc-shaped recess at the top of the elastic clamp is related to the nominal diameter d of the cable as R = 0.6d ± 0.05 mm. The surface of the arc-shaped recess is provided with diamond-shaped anti-slip protrusions, with a protrusion height of 0.2~0.4 mm and a density of 20~30 protrusions / cm². 2 .

4. The cable fixing device for highway electromechanical equipment as described in claim 1, characterized in that: The connecting plate has an arc-shaped recess in the middle, the depth of which is 1.5~3mm, and a transverse reinforcing rib at the bottom of the arc-shaped recess. The top edges of the first and second side plates have guide chamfers with an angle of 30~45 degrees.

5. The cable fixing device for highway electromechanical equipment as described in claim 1, characterized in that: The flexible silicone structure contains 3-5% by mass of oriented carbon nanotube bundles. The axial direction of the carbon nanotube bundles forms an angle of 15-30° with the extension direction from the root to the end of the hinge. The length of a single bundle of carbon nanotubes is 50-80 μm and the diameter distribution is 20-40 nm. The hinge cross-sectional thickness decreases continuously from 2.5~3mm at the root to 1.2~1.8mm at the end, and biomimetic honeycomb-shaped micropores with a diameter of 100~300μm are embedded in the thickness direction, with a micropore density of 5~8 per mm at the root. 2 12-15 per mm towards the end 2 Gradient increases.

6. The cable fixing device for highway electromechanical equipment as described in claim 1, characterized in that, The bottom of the elastic clamping block forms a molecular-level bonding interface with the arc-shaped recess of the connecting plate through a hot vulcanization bonding process. The bonding layer has a thickness of 0.2~0.5mm and contains oriented carbon fiber reinforcement phase.

7. A cable fixing device for highway electromechanical equipment as described in claim 6, characterized in that, In the hot vulcanization bonding process, the carbon fiber reinforcing phase is oriented and controlled by a magnetic field, and the carbon fiber surface is coated with a Fe3O4 coating with a thickness of 50~100nm. The adhesive layer contains self-healing microcapsules with a particle size of 20~50μm, which contain a two-component epoxy resin repair agent. When the interface crack extends to the microcapsule, the repair agent is released to form a three-dimensional cross-linked network.

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