Cable easy to lay and traction device thereof

Abstract

The invention relates to the technical field of cable transportation devices, and discloses an easy-to-lay cable and a traction device thereof.The easy-to-lay cable comprises a protective sleeve shell, a cable body, a traction crawler belt and a floating wheel set, the cable body is extended at the end point through welding, the protective sleeve shell is arranged outside the connecting position of the cable body for wrapping, and the protective sleeve shell is in a spindle shape; the diameters of the two ends of the protective sleeve shell are smaller than the diameter of the middle section, when the end points of the protective sleeve shell are squeezed, the diameter of the protective sleeve shell at the end points can be reduced, and when the protective sleeve shell is not stressed, the shape of the protective sleeve shell is recovered. In a normal state, the rolling wheel moves downwards under the influence of gravity, upward supporting force is provided by the arc-shaped supporting plates, the bag bodies at the two ends of the rolling wheel are pressed to deform, and when the cable passes through, fluid in the bag bodies flows towards the two sides, so that the two sides of the bag bodies expand, and the rolling wheel is lifted.

Description

Technical Field

[0001] This invention relates to the field of transport cable equipment technology, specifically to an easy-to-lay cable and its traction device. Background Technology

[0002] A cable laying traction device is a mechanical device specifically designed for cable construction. Its core function is to provide the necessary traction force for cable laying, retrieval, or maintenance operations, thereby ensuring that the cable can be laid efficiently and safely along a predetermined path. The device mainly consists of a traction machine, tracks or rollers, a tension control device, and a guiding device. The traction machine, as the power source, transmits traction force through the friction between the tracks or rollers and the cable, while the tension control device is responsible for maintaining appropriate cable tension, preventing it from being too tight or too loose. The guiding device guides the cable to be laid accurately along the predetermined route. This device is widely used in power, telecommunications, and construction fields, and is suitable for different environments and cable specifications, especially showing significant advantages in long-distance, large-section cable laying. Its technical advantages include significantly improved construction efficiency, effective protection of cables from damage, strong adaptability, and ease of operation. Through mechanized traction, this device not only shortens the construction cycle but also ensures the safety and convenience of construction through advanced control systems and monitoring equipment.

[0003] Common cable traction equipment is the tracked traction device, which increases friction by rotating the tracks on both sides and applying pressure to the cable to ensure transportation. During transportation, the equipment gap needs to be adjusted according to the different cable diameters. Sufficient pressure is usually required to ensure traction speed, which can damage some cables with optical fibers. In addition, in some long cables, extension is usually achieved by welding, and a protective sleeve is installed at the weld for wrapping. The diameter of the protective sleeve is significantly larger than the cable diameter. During traction, the diameter of the protective sleeve will be larger than the gap between the two tracks. To ensure transportation, the equipment needs to be adjusted, which increases the traction time and reduces work efficiency. If it is not adjusted in time, it will damage the protective shell or even the internal cable. Summary of the Invention

[0004] (I) Technical problem to be solved: In view of the shortcomings of the prior art, the present invention provides an easy-to-lay cable and its traction device, which has the advantages of flexible traction and adaptive adjustment, and solves the problem of easy damage during cable traction.

[0005] (II) Technical Solution: To achieve the aforementioned flexible traction and adaptive adjustment objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides an easy-to-lay cable and its pulling device, comprising a protective sheath and a cable body. The cable body is extended at its ends by welding. A protective sheath is provided to wrap the cable body at the connection point. The protective sheath is spindle-shaped, with the diameters at both ends of the protective sheath being smaller than the diameter of the middle section. The protective sheath is a detachable four-lobed shell, which is closed by sliding grooves and snaps at the connection points between each lobe. When the end of the protective sheath is squeezed, the diameter of the protective sheath at the end will decrease, and it will return to its shape when no pressure is applied.

[0006] Preferably, each segment of the protective sleeve shell is provided with a bladder filled with fluid. The bladder is divided into a protective sleeve end bladder located at one end of the shell and a protective sleeve middle bladder located in the middle of the shell. The protective sleeve end bladder and the protective sleeve middle bladder are internally connected and separated by a protective sleeve bladder membrane flap. The protective sleeve middle bladder has a smaller degree of deformation under pressure than the protective sleeve end bladder. When the protective sleeve middle bladder or the protective sleeve end bladder is deformed under pressure, the internal pressure of the protective sleeve middle bladder or the protective sleeve end bladder increases, and the protective sleeve bladder membrane flap will open, allowing the fluid to flow from the area of ​​high pressure to the area of ​​low pressure. Anti-slip strips are arranged on the outer side of the protective sleeve end bladder and the protective sleeve middle bladder.

[0007] Preferably, there is a gap between the end of the protective sleeve and the cable body. A triangular notch is provided between each shell segment at the end of the protective sleeve. When the end of the protective sleeve is compressed, it will deform and bend downward. At the same time, the gap between each shell segment will decrease, thus reducing the diameter at the end of the protective sleeve. Anti-slip strips are arranged on the outer side of the protective sleeve.

[0008] Secondly, the present invention provides an easy-to-lay cable and its traction device, including a traction track and a floating wheel assembly. The traction track has track plates and is driven by a motor. The floating wheel assembly has at least three rolling wheels arranged horizontally, and the overall vertical height of the floating wheel assembly is adjusted by a hydraulic rod. Each rolling wheel is wrapped with a fluid-filled bladder. The rolling wheel is cylindrical in shape, and an arc-shaped support plate is provided below both ends of the rolling wheel. The arc-shaped support plate is set on the wall surface of the floating wheel assembly for mounting the rolling wheel. Each rolling wheel can move up and down in the floating wheel assembly without affecting each other. Under normal conditions, the rolling wheel moves downward under the influence of gravity, and the arc-shaped support plate provides upward support force. The bladders at both ends of the rolling wheel are deformed under pressure. When the cable passes between the floating wheel assembly and the traction track, the bladder in the middle of the rolling wheel is deformed under pressure, and the fluid inside the bladder flows to both sides, causing the sides of the bladder to expand and lift the rolling wheel.

[0009] Preferably, the floating wheel assembly has a waist-shaped hole on the wall surface for mounting the rolling wheel, and the rolling wheel has a support rod that extends from the rolling wheel into the waist-shaped hole. The waist-shaped hole is vertically arranged, so that the rolling wheel can float up and down.

[0010] Preferably, the bladder covering the outer side of the rolling wheel is divided into a rolling wheel side bladder and a rolling wheel middle bladder. The rolling wheel side bladder and the rolling wheel middle bladder are internally connected and separated by a rolling wheel bladder membrane flap. The arc-shaped support plate only compresses the rolling wheel side bladder. When the rolling wheel side bladder or the rolling wheel middle bladder is compressed, the internal pressure of the bladder increases, causing the rolling wheel bladder membrane flap to open and flow into the bladder with lower pressure, thereby balancing the pressure of the rolling wheel side bladder and the rolling wheel middle bladder.

[0011] Preferably, the traction track has positioning posts and positioning post holes at both ends. The positioning posts are set in the positioning post holes, and there are at least four positioning post holes arranged in an array perpendicular to the direction of movement of the traction track. The positioning posts can be removed from the positioning post holes, and each end of the traction track has two positioning posts for positioning the cable.

[0012] Preferably, the track plate is composed of a silicone layer and spring steel sheets, with the silicone layer disposed on the side in contact with the cable.

[0013] Preferably, the surface of the silicone layer is provided with recessed anti-slip grooves.

[0014] (III) Beneficial Effects: Compared with the prior art, the present invention provides an easy-to-lay cable and its pulling device, which has the following beneficial effects: 1. This easy-to-lay cable and its traction device feature a spindle-shaped protective sheath with smaller diameters at both ends than in the middle. This shape helps to evenly distribute stress when the cable is bent or compressed, reducing the risk of damage caused by excessive local pressure. Simultaneously, the spindle shape allows the protective sheath to form a tighter wrap at the cable connection, improving sealing and protection. The sheath's bladder is divided into end sections and a middle section, with internal fluid communication separated by a diaphragm. When a section is compressed, a fluid pressure balance mechanism causes fluid to flow from the high-pressure area to the low-pressure area, automatically adjusting the shape of the protective sheath to adapt to cable deformation and reduce damage caused by compression. The floating wheel assembly, with its vertical height adjusted by a hydraulic rod, can automatically adjust its position according to different cable diameters, ensuring good contact between the cable and the rolling wheels during traction. The traction track, driven by a motor, works in conjunction with the floating wheel assembly to form continuous frictional traction on the cable, improving traction efficiency. When the cable passes through, the bladder surrounding the rolling wheels is compressed, causing the internal fluid to flow to both sides, expanding the bladder and lifting the rolling wheels. The dynamic adjustment not only increases the contact area between the rolling wheel and the cable, improving friction, but also automatically adjusts the lifting height according to different cable diameters, enhancing the equipment's adaptability. The arc-shaped support plates at both ends of the rolling wheel provide upward support under normal conditions, preventing excessive sag due to gravity. Simultaneously, when the cable passes through, the interaction between the support plates and the bladder helps stabilize the rolling wheel's position, reducing unnecessary swaying. The protective casing and the bladders on the rolling wheels can absorb some energy through deformation when the cable is compressed, reducing damage to the internal optical fibers and the equipment itself. This buffering effect is particularly important for protecting sensitive communication cables. The entire system, through the automatic adjustment of the hydraulic rod and bladders, reduces the need for manual adjustments, improving work efficiency and reducing the risk of errors or damage caused by improper human operation. The varying distances between each rolling wheel in the floating wheel assembly allow for segmented changes, ensuring sufficient traction for the entire cable section between the traction track and the floating wheel assembly. This design enhances the equipment's adaptability to cables of different diameters, eliminating the need for frequent adjustments to equipment parameters.

[0015] 2. This easy-to-lay cable and its traction device are vertically installed through an oblong hole, allowing the rolling wheel to float freely in the vertical direction. A support rod extends from the rolling wheel into the oblong hole, ensuring the stability and guidance of the rolling wheel during floating. This design allows the rolling wheel to automatically adjust its position according to changes in cable diameter without human intervention, significantly improving the equipment's flexibility and adaptability to different cable specifications. The outer bladder of the rolling wheel is divided into side and middle sections, separated internally by a membrane flap. When the cable passes through, the middle bladder is compressed, and fluid flows through the membrane flap to the side bladder, achieving pressure balance. This mechanism not only reduces the risk of excessive local pressure within the bladder but also allows the rolling wheel to evenly wrap around the cable, improving traction efficiency. The design of the side and middle bladders ensures that the rolling wheel can evenly distribute pressure when the cable passes through, reducing damage to the internal optical fibers and the equipment itself. The deformation capability further enhances this buffering effect, especially when handling larger diameter cables. The expansion of the bladder effectively absorbs compressive energy, and the automatic adjustment function of the floating wheel group ensures that the rolling wheel always maintains good contact with the cable, providing stable traction force regardless of changes in cable diameter. This continuous and stable traction force improves traction efficiency and reduces jamming and idling. The deformation of the bladder when the cable passes not only increases the contact area between the rolling wheel and the cable, but also adjusts the shape of the bladder through fluid flow, allowing the rolling wheel to wrap the cable more tightly, thereby increasing friction and ensuring efficient traction. The buffering effect and pressure balancing mechanism of the bladder reduce wear and impact during equipment operation, helping to extend the service life of the equipment. In particular, the soft wrapping of the cable by the bladder reduces direct contact between the cable and the rolling wheel, further reducing the risk of wear.

[0016] 3. The easy-to-lay cable and its traction device have at least four positioning pin holes arranged perpendicular to the direction of movement of the traction track, allowing the traction track to be positioned at different locations. This design enables the device to adapt to the needs of cables of different specifications. By adjusting the position of the positioning pins, the cable is ensured to always be in the optimal position during traction, improving the flexibility and adaptability of the equipment. The track plate is composed of a silicone layer and spring steel plates. The silicone layer is located on the side in contact with the cable, providing a soft and durable contact surface that helps reduce cable wear, while the spring steel plates provide the necessary support and elasticity, allowing the track plate to adapt to cables of different diameters. This material combination balances wear resistance and flexibility, providing all-round protection for the cable. The surface of the silicone layer has recessed anti-slip grooves, increasing the friction between the track plate and the cable and preventing the cable from slipping during traction. This design not only improves traction efficiency but also reduces damage to the cable caused by slippage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a detailed view of the rolling wheel of the present invention; Figure 4 This is a cross-sectional view of the rolling wheel of the present invention; Figure 5 This is a schematic diagram of the cable protective sleeve housing of the present invention; Figure 6 This is a schematic diagram of the protective sleeve flap in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the protective sleeve shell under pressure according to Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the rolling wheel bladder structure of the present invention; Figure 9 This is a schematic diagram of the positioning post of the present invention; Figure 10 This is a schematic diagram of the track plate structure of the present invention.

[0018] In the diagram: 1. Protective sleeve shell; 2. Traction track; 3. Floating wheel assembly; 11. Protective sleeve end bladder; 12. Protective sleeve middle bladder; 13. Anti-slip strip; 21. Track plate; 31. Rolling wheel; 32. Waist-shaped hole; 33. Arc-shaped support plate; 101. Cable body; 111. Protective sleeve bladder flap; 201. Positioning post; 202. Positioning post hole; 211. Silicone layer; 212. Spring steel sheet; 213. Anti-slip groove; 311. Support rod; 312. Rolling wheel side bladder; 313. Rolling wheel middle bladder; 314. Rolling wheel bladder flap. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 5-6The easily laid cable and its pulling device include a protective sheath 1 and a cable body 101. The cable body 101 is extended at its ends by welding. A protective sheath 1 is provided to wrap the connection of the cable body 101. The protective sheath 1 is spindle-shaped, with the diameters at both ends of the protective sheath 1 being smaller than the diameter of the middle section. The protective sheath 1 is a detachable four-lobed shell, which is closed by sliding grooves and snaps at the connection points between each lobe. When the end of the protective sheath 1 is compressed, the diameter of the protective sheath 1 at the end will decrease. Each lobe of the protective sheath 1 is provided with a fluid-filled bladder, and the bladder is divided into a protective sheath end point located at the end of the shell. The protective sleeve 11 and the protective sleeve intermediate 12 are located in the middle of the housing. The protective sleeve end 11 and the protective sleeve intermediate 12 are internally connected and separated by a protective sleeve 111 membrane flap. The protective sleeve intermediate 12 is less deformed under pressure than the protective sleeve end 11. When the protective sleeve intermediate 12 or the protective sleeve end 11 is deformed under pressure, the internal pressure of the protective sleeve intermediate 12 or the protective sleeve end 11 increases, and the protective sleeve 111 membrane flap opens, allowing fluid to flow from the area of ​​high pressure to the area of ​​low pressure. When the protective sleeve housing 1 is first sent into the traction device, anti-slip strips 13 are arranged on the outer side of the protective sleeve end 11 and the protective sleeve intermediate 12.

[0021] See Figures 1-4 The easily laid cable and its traction device include a traction track 2 and a floating wheel assembly 3. The traction track 2 has track plates 21 and is driven by a motor. The floating wheel assembly 3 has at least three rolling wheels 31 arranged horizontally, and the vertical height of the entire floating wheel assembly 3 is adjusted by a hydraulic rod. The outer side of each rolling wheel 31 is wrapped with a fluid-filled bladder. The rolling wheel 31 is cylindrical in shape, and an arc-shaped support plate 33 is provided below both ends of the rolling wheel 31. The arc-shaped support plate 33 is located in the floating wheel assembly 3. On the wall surface for mounting the rolling wheels 31, each rolling wheel 31 can move up and down in the floating wheel group 3 and the rolling wheels 31 do not affect each other. Under normal conditions, the rolling wheel 31 moves downward under the influence of gravity and is supported upward by the arc-shaped support plate 33. The bladders at both ends of the rolling wheel 31 are deformed by pressure. When the cable passes between the floating wheel group 3 and the traction track 2, the bladder in the middle of the rolling wheel 31 is deformed by pressure, and the fluid inside the bladder flows to both sides, causing the sides of the bladder to expand and lift the rolling wheel 31.

[0022] When the protective sleeve housing 1 enters between the traction track 2 and the floating wheel group 3, it is squeezed by the traction track 2 and the floating wheel group 3. One end of the protective sleeve housing 1 is compressed inward, which reduces the change in diameter from the cable body 101 to the protective sleeve housing 1 in cross-section. The cable body 101 is less obstructed when entering the traction device at the connection section, and will not cause obvious jamming or freewheeling. The traction track 2 is driven by the motor to rotate, and through its cooperation with the floating wheel group 3, it generates frictional traction on the cable body 101 to move it forward. The rolling wheels 31 arranged in an array in the floating wheel group 3 are covered with gas-filled bladders. The structure allows the cable body 101 to partially enclose the cable body 101 as it passes over the rolling wheel 31 due to mutual compression. This effectively increases friction and ensures traction speed. Simultaneously, the outer layer of the protective sleeve 1 and the outer layer of the rolling wheel 31 work together to effectively reduce damage to the equipment and cable caused by compression through deformation, preventing damage to the internal optical fibers. Furthermore, deformation increases the mutual force, improving traction efficiency. When a large-diameter cable body 101 and protective sleeve 1 pass over the rolling wheel 31, the electric... The cable body 101 mainly passes through the middle of the rolling wheel 31, with deformation concentrated primarily on the contact side. This causes the gas inside the bladder to move to both sides, resulting in expansion. Arc-shaped support plates 33 are located at the bottom of both sides of the rolling wheel 31. Under normal conditions, due to gravity, the bladders on both sides of the rolling wheel 31 are compressed against the arc-shaped support plates 33, causing deformation. When the cable body 101 passes through the rolling wheel 31, the expansion of the bladders on both sides of the rolling wheel 31 causes the rolling wheel 31 to move upwards in the vertical direction. Depending on the diameter of the cable body 101, the degree of deformation of the bladders on both sides of the rolling wheel 31 varies, resulting in different upward distances for the rolling wheel 31 as a whole. This increases the device's adaptability to cables of different diameters, reduces manual adjustments, and improves work efficiency. Simultaneously, when the protective sleeve housing 1, mounted on the cable body 101, passes through, the distance between the rolling wheel 31 and the traction track 2 can be effectively adjusted. This ensures that the protective sleeve housing 1 has sufficient space to pass through, while the rolling wheel 31 and the traction track 2 have sufficient friction to pull it forward. Furthermore, the different distances between each rolling wheel 31 in the floating wheel group 3 achieve segmented changes, ensuring that the entire cable has sufficient traction force to move between the traction track 2 and the floating wheel group 3, thus achieving efficient traction.

[0023] See Figure 3 and Figure 8The floating wheel assembly 3 has a waist-shaped hole 32 on the wall surface for mounting the rolling wheel 31. The rolling wheel 31 has a support rod 311 that extends from the rolling wheel 31 into the waist-shaped hole 32. The waist-shaped hole 32 is vertically arranged, allowing the rolling wheel 31 to float up and down. The outer bladder of the rolling wheel 31 is divided into a side bladder 312 and a middle bladder 313. The side bladder 312 and the middle bladder 313 are internally connected and separated by a bladder flap 314. The arc-shaped support plate 33 only squeezes the side bladder 312. When the side bladder 312 or the middle bladder 313 is squeezed, the internal pressure of the bladder increases, causing the bladder flap 314 to open and flow into the bladder with lower pressure, thus balancing the pressure of the side bladder 312 and the middle bladder 313.

[0024] See Figure 9 The traction track 2 is provided with positioning posts 201 and positioning post holes 202 at both ends. The positioning posts 201 are set in the positioning post holes 202. There are at least 4 positioning post holes 202 arranged in an array along the direction perpendicular to the movement direction of the traction track 2. The positioning posts 201 can be removed from the positioning post holes 202. Each end of the traction track 2 is provided with two positioning posts 201 for positioning the cable.

[0025] See Figure 10 The track plate 21 is composed of a silicone layer 211 and a spring steel sheet 212. The silicone layer 211 is disposed on the side in contact with the cable, and the surface of the silicone layer 211 is provided with recessed anti-slip grooves 213.

[0026] Example 2 Please see Figure 5 and Figure 7 The easy-to-lay cable and its pulling device include a protective sleeve shell 1 and a cable body 101. The cable body 101 is extended at its ends by welding. The cable body 101 is wrapped with a protective sleeve shell 1 at the connection point. The protective sleeve shell 1 is spindle-shaped, and the diameters at both ends of the protective sleeve shell 1 are smaller than the diameter of the middle section. The protective sleeve shell 1 is a detachable four-lobed shell, which is closed by sliding grooves and buckles at the connection points between each lobe. When the end of the protective sleeve shell 1 is squeezed, the diameter of the protective sleeve shell 1 at the end will decrease. There is a gap between the end of the protective sleeve shell 1 and the cable body 101. There is a triangular notch between each lobe at the end of the protective sleeve shell 1. When the end of the protective sleeve shell 1 is compressed, it will deform and bend downward. At the same time, the gap between each lobe will decrease, thus reducing the diameter of the end of the protective sleeve shell 1. Anti-slip strips 13 are arrayed on the outer side of the protective sleeve shell 1.

[0027] See Figures 1-4The easily laid cable and its traction device include a traction track 2 and a floating wheel assembly 3. The traction track 2 has track plates 21 and is driven by a motor. The floating wheel assembly 3 has at least three rolling wheels 31 arranged horizontally, and the vertical height of the entire floating wheel assembly 3 is adjusted by a hydraulic rod. The outer side of each rolling wheel 31 is wrapped with a fluid-filled bladder. The rolling wheel 31 is cylindrical in shape, and an arc-shaped support plate 33 is provided below both ends of the rolling wheel 31. The arc-shaped support plate 33 is located in the floating wheel assembly 3. On the wall surface for mounting the rolling wheels 31, each rolling wheel 31 can move up and down in the floating wheel group 3 and the rolling wheels 31 do not affect each other. Under normal conditions, the rolling wheel 31 moves downward under the influence of gravity and is supported upward by the arc-shaped support plate 33. The bladders at both ends of the rolling wheel 31 are deformed by pressure. When the cable passes between the floating wheel group 3 and the traction track 2, the bladder in the middle of the rolling wheel 31 is deformed by pressure, and the fluid inside the bladder flows to both sides, causing the sides of the bladder to expand and lift the rolling wheel 31.

[0028] When the protective sleeve housing 1 enters between the traction track 2 and the floating wheel group 3, it is squeezed by the traction track 2 and the floating wheel group 3. One end of the protective sleeve housing 1 is compressed inward, reducing the change in diameter from the cable body 101 to the protective sleeve housing 1 in cross-section. This reduces the obstruction encountered by the cable body 101 as it enters the traction device at the connection section, preventing significant jamming and freewheeling. The traction track 2 rotates under motor drive, and through its cooperation with the floating wheel group 3, it generates frictional traction on the cable body 101, causing it to move forward. The floating wheel group 3 has an array of rolling wheels 31, the outer side of which is covered with a gas-filled bladder, allowing... When the cable body 101 passes the rolling roller 31, the mutual compression causes the outer bladder of the rolling roller 31 to partially enclose the cable body 101, effectively increasing friction and ensuring traction speed. Simultaneously, the bladder softly covers the cable body 101, preventing damage to the internal optical fibers. Furthermore, the elastic deformation at the end of the protective sleeve shell 1, in conjunction with the outer bladder of the rolling roller 31, effectively reduces damage to the equipment and cable caused by compression through deformation, preventing damage to the internal optical fibers. Moreover, the deformation increases the mutual force, improving traction efficiency. This is particularly effective when the cable body 101 and the protective sleeve shell 1 pass through the rolling roller... At position 31, because the cable body 101 mainly passes through the middle of the rolling wheel 31, the deformation is mainly concentrated on the contact side, causing the gas inside the bladder to move to both sides and expand. The bottom of both sides of the rolling wheel 31 is provided with arc-shaped support plates 33. Under normal conditions, due to gravity, the bladders on both sides of the rolling wheel 31 are compressed against the arc-shaped support plates 33, causing deformation. When the cable body 101 passes through the rolling wheel 31, the expansion of the bladders on both sides of the rolling wheel 31 causes the rolling wheel 31 to move upwards in the vertical direction. Depending on the diameter of the cable body 101, the degree of deformation of the bladders on both sides of the rolling wheel 31 varies, and the overall upward distance of the rolling wheel 31 varies accordingly. The difference increases the device's adaptability to cables of different diameters, reduces manual adjustments, and improves work efficiency. At the same time, when the protective sleeve housing 1 set on the cable body 101 passes through, it can effectively adjust the distance between the rolling wheel 31 and the traction track 2, ensuring that the protective sleeve housing 1 has enough space to pass through while the rolling wheel 31 and the traction track 2 have enough friction to pull it forward. Furthermore, the different distances of each rolling wheel 31 in the floating wheel group 3 realize segmented changes, ensuring that the entire cable has enough traction force to move between the traction track 2 and the floating wheel group 3, thus achieving efficient traction.

[0029] See Figure 3 and Figure 8The floating wheel assembly 3 has a waist-shaped hole 32 on the wall surface for mounting the rolling wheel 31. The rolling wheel 31 has a support rod 311 that extends from the rolling wheel 31 into the waist-shaped hole 32. The waist-shaped hole 32 is vertically arranged, allowing the rolling wheel 31 to float up and down. The outer bladder of the rolling wheel 31 is divided into a side bladder 312 and a middle bladder 313. The side bladder 312 and the middle bladder 313 are internally connected and separated by a bladder flap 314. The arc-shaped support plate 33 only squeezes the side bladder 312. When the side bladder 312 or the middle bladder 313 is squeezed, the internal pressure of the bladder increases, causing the bladder flap 314 to open and flow into the bladder with lower pressure, thus balancing the pressure of the side bladder 312 and the middle bladder 313.

[0030] See Figure 9 The traction track 2 is provided with positioning posts 201 and positioning post holes 202 at both ends. The positioning posts 201 are set in the positioning post holes 202. There are at least 4 positioning post holes 202 arranged in an array along the direction perpendicular to the movement direction of the traction track 2. The positioning posts 201 can be removed from the positioning post holes 202. Each end of the traction track 2 is provided with two positioning posts 201 for positioning the cable.

[0031] See Figure 10 The track plate 21 is composed of a silicone layer 211 and a spring steel sheet 212. The silicone layer 211 is disposed on the side in contact with the cable, and the surface of the silicone layer 211 is provided with recessed anti-slip grooves 213.

[0032] Working principle: When the protective sleeve housing 1 enters between the traction track 2 and the floating wheel set 3, it is squeezed by the traction track 2 and the floating wheel set 3. One end of the protective sleeve housing 1 is compressed inward, reducing the change in diameter from the cable body 101 to the protective sleeve housing 1 in cross-section. This reduces the obstruction encountered by the cable body 101 as it enters the traction device at the connection section, preventing significant jamming and freewheeling. The traction track 2 rotates under motor drive, and through its cooperation with the floating wheel set 3, it generates frictional traction on the cable body 101, causing it to move forward. The floating wheel set 3... The outer side of the rollers 31 is covered with a gas-filled bladder. When the cable body 101 passes through the rollers 31, the mutual compression causes the bladder on the outside of the rollers 31 to partially wrap around the cable body 101, effectively increasing friction and ensuring traction speed. At the same time, the bladder can softly wrap around the cable body 101 to prevent damage to the internal optical fibers. When a large-diameter cable body 101 and the protective sheath 1 pass through the rollers 31, since the cable body 101 mainly passes through the middle of the rollers 31, the deformation is mainly concentrated on the contact side, causing the gas inside the bladder to... The movement of both sides causes expansion. Arc-shaped support plates 33 are located at the bottom of both sides of the rolling wheel 31. Under normal conditions, due to gravity, the bladders on both sides of the rolling wheel 31 are compressed against the arc-shaped support plates 33, causing deformation. When the cable body 101 passes through the rolling wheel 31, the expansion of the bladders on both sides of the rolling wheel 31 causes the rolling wheel 31 to move upwards in the vertical direction. Depending on the diameter of the cable body 101, the degree of deformation of the bladders on both sides of the rolling wheel 31 varies, resulting in different upward movement distances for the rolling wheel 31. This increases the adaptability of the device to cables of different diameters, reduces manual adjustments, and improves work efficiency. Simultaneously, when the protective sleeve housing 1, which is set on the cable body 101, passes through, the distance between the rolling wheel 31 and the traction track 2 can be effectively adjusted, ensuring that the protective sleeve housing 1 has sufficient space to pass while providing sufficient friction between the rolling wheel 31 and the traction track 2 to pull it forward. Furthermore, the different distances of each rolling wheel 31 in the floating wheel group 3 achieve segmented changes, ensuring sufficient traction force for the entire cable section to move between the traction track 2 and the floating wheel group 3, thus achieving efficient traction.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easy-to-lay cable, comprising a protective sheath (1) and a cable body (101), wherein the cable body (101) is extended at its ends by welding, and the cable body (101) is externally wrapped with a protective sheath (1) at the connection point, characterized in that: The protective sleeve shell (1) is spindle-shaped, and the diameters at both ends of the protective sleeve shell (1) are smaller than the diameter of the middle section. The protective sleeve shell (1) is a detachable four-lobed shell, which is closed by sliding grooves and buckles at the connection between each lobe shell. When the end of the protective sleeve shell (1) is squeezed, the diameter of the protective sleeve shell (1) at the end will decrease, and it will return to its shape when it is not under pressure.

2. The easy-to-lay cable according to claim 1, characterized in that: Each segment of the protective sleeve shell (1) is provided with a bladder filled with fluid. The bladder is divided into a protective sleeve end bladder (11) located at the end of the shell and a protective sleeve middle bladder (12) located in the middle of the shell. The protective sleeve end bladder (11) and the protective sleeve middle bladder (12) are internally connected and separated by a protective sleeve bladder membrane flap (111). The protective sleeve middle bladder (12) is less deformed under pressure than the protective sleeve end bladder (11). When the protective sleeve middle bladder (12) or the protective sleeve end bladder (11) is deformed under pressure, the internal pressure of the protective sleeve middle bladder (12) or the protective sleeve end bladder (11) increases, and the protective sleeve bladder membrane flap (111) opens, allowing the fluid to flow from the area of ​​high pressure to the area of ​​low pressure. Anti-slip strips (13) are arranged on the outer side of the protective sleeve end bladder (11) and the protective sleeve middle bladder (12).

3. The easy-to-lay cable according to claim 1, characterized in that: There is a gap between the end of the protective sleeve shell (1) and the cable body (101). There is a triangular notch between each shell segment at the end of the protective sleeve shell (1). When the end of the protective sleeve shell (1) is pressed, it will deform and bend downward. At the same time, the gap between each shell segment will decrease, which will reduce the diameter at the end of the protective sleeve shell (1). When it is not under pressure, it will recover its shape. There are anti-slip strips (13) arranged on the outside of the protective sleeve shell (1).

4. A traction device for traction of an easily laid cable as described in claim 1, comprising a traction track (2) and a floating wheel assembly (3), wherein the traction track (2) is provided with track plates (21) and is driven by a motor, and the floating wheel assembly (3) has at least three rolling wheels (31) arranged horizontally, and the vertical height of the floating wheel assembly (3) as a whole is adjusted by a hydraulic rod, characterized in that: The outer side of the rolling wheel (31) is wrapped with a bladder filled with fluid. The rolling wheel (31) is cylindrical in shape and has an arc-shaped support plate (33) below both ends of the rolling wheel (31). The arc-shaped support plate (33) is set on the wall surface of the floating wheel group (3) for mounting the rolling wheel (31). Each rolling wheel (31) can move up and down in the floating wheel group (3) without affecting each other. Under normal conditions, the rolling wheel (31) moves downward under the influence of gravity and is supported upward by the arc-shaped support plate (33). The bladders at both ends of the rolling wheel (31) are deformed by pressure. When the cable passes between the floating wheel group (3) and the traction track (2), the bladder in the middle of the rolling wheel (31) is deformed by pressure, and the fluid inside the bladder flows to both sides, causing the sides of the bladder to expand and lift the rolling wheel (31).

5. The traction device according to claim 4, characterized in that: The floating wheel assembly (3) has a waist-shaped hole (32) on the wall surface for mounting the rolling wheel (31). The rolling wheel (31) has a support rod (311) that extends from the rolling wheel (31) into the waist-shaped hole (32). The waist-shaped hole (32) is vertically set, so that the rolling wheel (31) can float up and down.

6. The easy-to-lay cable and its pulling device according to claim 1, characterized in that: The outer bladder of the rolling wheel (31) is divided into a rolling wheel side bladder (312) and a rolling wheel middle bladder (313). The rolling wheel side bladder (312) and the rolling wheel middle bladder (313) are internally connected and separated by a rolling wheel bladder flap (314). The arc-shaped support plate (33) only squeezes the rolling wheel side bladder (312). When the rolling wheel side bladder (312) or the rolling wheel middle bladder (313) is squeezed, the internal pressure of the bladder increases, causing the rolling wheel bladder flap (314) to open and flow into the bladder with lower pressure, so that the pressure of the rolling wheel side bladder (312) and the rolling wheel middle bladder (313) is balanced.

7. The easy-to-lay cable and its pulling device according to claim 1, characterized in that: The traction track (2) is provided with positioning posts (201) and positioning post holes (202) at both ends. The positioning posts (201) are set in the positioning post holes (202). There are at least 4 positioning post holes (202) arranged in an array along the direction perpendicular to the movement of the traction track (2). The positioning posts (201) can be taken out from the positioning post holes (202). Each end of the traction track (2) is provided with two positioning posts (201) for positioning the cable.

8. The easy-to-lay cable and its pulling device according to claim 1, characterized in that: The track plate (21) is composed of a silicone layer (211) and a spring steel sheet (212), and the silicone layer (211) is disposed on the side in contact with the cable.

9. The easy-to-lay cable and its pulling device according to claim 1, characterized in that: The surface of the silicone layer (211) is provided with recessed anti-slip grooves (213).

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