A cable laying apparatus for power construction

Abstract

This invention discloses a cable laying device for power construction, belonging to the technical field of power construction equipment. Specifically, the cable laying device includes a roller component, a triggering component, and a locking component. This invention achieves adaptive and precise locking of the cable drum through the coordinated operation of the triggering and locking components, effectively solving the problems of severe cable wear caused by reliance on frictional transmission in existing devices and cable slack and entanglement due to the inertial rotation of the drum. Specifically, this invention does not rely on friction between the cable and the transmission component for locking control. Instead, the cable tension acts directly on the roller, driving the triggering component to move and release the lock. When the cable stops pulling or slacks, the spring force drives the locking component to automatically engage and lock. Throughout the process, the cable and roller experience rolling friction, resulting in minimal friction and minimizing wear on the cable sheath, thus ensuring the cable's insulation performance and service life.

Description

Technical Field

[0001] This invention relates to the field of power construction equipment technology, specifically to a cable laying device for power construction. Background Technology

[0002] Cable installation and laying equipment is a key piece of equipment in power engineering used to support, protect, and manage cables. Its core function is to ensure the safe and stable installation and operation of cables, guarantee the reliable transmission of electrical energy or signals, and meet the requirements of aesthetics and economy in the project. During cable laying operations, workers typically need to pull the cable to rotate the cable reel and release it. However, existing technologies present many problems that urgently need to be solved.

[0003] For example, the Chinese invention patent CN118619018B, entitled "A Cable Installation and Laying Device," includes a support frame, a fixed disc, a spool, a cable, a worm gear, a worm, a transmission roller, a transmission assembly, and a cable ring. The device controls the rotation of the transmission roller through the frictional force generated by the cable's movement. This rotation, via a first bevel gear, a second bevel gear, and other transmission assemblies, drives the worm gear to rotate, which in turn controls the worm gear to rotate the spool. This prevents the cable from flying out due to the spool's continuous rotation during cable laying. Simultaneously, an electric push rod drives a moving ring, causing the cable ring to slide and the cable clamping assembly to hold the cable, assisting in pulling the cable and reducing the workload of workers. However, this existing technical solution still has obvious drawbacks: First, the device relies on the friction between the cable and the transmission roller to achieve transmission control. To ensure transmission stability, the pressure between the cable and the transmission roller needs to be increased through the squeezing roller and the top pressure spring. This inevitably leads to a large friction force on the cable surface, which can easily cause wear on the cable sheath with long-term or frequent use, affecting the insulation performance and service life of the cable. Second, the locking and transmission structure of the device is complex, including multiple precision transmission components such as worm gears, worm shafts, and bevel gears. This not only results in high manufacturing costs, but also in the complex environment of outdoor power construction, where dust, sand, and other impurities can easily enter the gaps between the transmission components, causing them to jam and wear, affecting the reliability and service life of the device. Third, when workers pull the cable, they need to overcome the friction between the cable and the transmission roller as well as the movement resistance of each transmission component, requiring a large pulling force and high labor intensity. Fourth, the cable clamping auxiliary pulling structure of the device relies on electric components such as electric push rods, which require an additional power source. This limits its applicability in outdoor construction scenarios where there is no power supply, and the maintenance cost of the electric components is also relatively high.

[0004] Furthermore, during actual cable laying, when workers quickly pull the cable for a short period and then suddenly stop, the spool continues to rotate rapidly due to inertia. This results in slack cable between the spool and the pulled end, making it difficult for some existing devices to lock the spool in a timely and accurate manner. This can easily lead to cable tangling and misalignment, severely impacting laying efficiency. Simultaneously, during cable winding and loading, existing devices often suffer from high spool rotation resistance and irregular cable stacking, increasing the difficulty and labor intensity for workers. Therefore, there is an urgent need for a power cable laying device with a simpler and more reliable structure, less damage to cables, easier operation, and wider applicability to solve the aforementioned problems in existing technologies. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a cable laying device for power construction, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a cable laying device for power construction, comprising a roller assembly with multiple turns of cable wound around it, a triggering component, and a locking component; the roller assembly includes a rotating shaft and a locking block, the locking block being unidirectionally rotatable on a section of the rotating shaft, and having multiple slots arranged in a circular array on its outer side wall; the triggering component includes a sliding seat, a roller, two springs, two sliders, and a fixing rod, the sliding seat having a longitudinally penetrating clearance groove extending through its lower part, and sliding grooves on both lower side walls of the sliding seat; the two sliders are respectively longitudinally slidably mounted in the two sliding grooves of the sliding seat, the springs being located in the sliding grooves, and the upper and lower ends of the springs respectively... The sliding seat and slider are fixedly connected, and the spring force pushes the slider downward along the sliding groove; the fixed rod passes through the two sliders laterally and is fixedly connected to the two sliders; the roller is fitted on the fixed rod and the two are rotatably installed, and the roller is located in the clearance groove of the sliding seat; the free end of the cable is wound around the lower half of the roller; the locking component includes a locking block; the fixed rod is drivenly connected to the locking block, and the locking block corresponds vertically to the locking groove. After the locking block is displaced downward, it is inserted into the locking groove; when laying the extended cable, the free end of the cable applies pressure to the roller under the action of tension, causing the roller to move upward; when the cable is stopped, the spring force pushes the slider downward, the slider drives the fixed rod downward, the fixed rod drives the locking block downward, and at this time the locking block is inserted into the locking groove.

[0007] Optionally, the roller component further includes a bobbin, a first support plate, and a second support plate. The middle of the rotating shaft passes through the bobbin and the two are fixedly installed. The two ends of the rotating shaft pass through the first support plate and the second support plate, respectively. The rotating shaft is rotatably installed with the second support plate and the rotating shaft is unidirectionally installed with the first support plate.

[0008] Optionally, the roller assembly further includes a one-way bearing, which is mounted on the outer side wall of the end of the rotating shaft near the first support plate. The locking block is generally annular and is mounted on the outer side wall of the one-way bearing. The inner ring of the one-way bearing is fixedly installed with the rotating shaft, and the outer ring of the one-way bearing is fixedly installed with the locking block.

[0009] Optionally, the roller component further includes a handle, which is fixedly connected to the end of the rotating shaft.

[0010] Optionally, the triggering component further includes a guide assembly, which includes a guide rod, a reciprocating screw, and two connecting blocks. The two connecting blocks are respectively fixedly installed on the first support plate and the second support plate, and the two connecting blocks are left and right corresponding to each other. The two ends of the guide rod are respectively fixedly connected to the two connecting blocks, and the two ends of the reciprocating screw pass through the two connecting blocks respectively, and the reciprocating screw is rotatably installed with the two connecting blocks. The reciprocating screw is parallel to the guide rod.

[0011] Optionally, the guide rod and the reciprocating screw both pass laterally through the sliding seat. The guide rod is slidably connected to the sliding seat, and the reciprocating screw and the sliding seat form a reciprocating screw pair through multiple balls. When the reciprocating screw rotates, it pushes the sliding seat to move laterally back and forth. The rotating shaft is drivenly connected to the reciprocating screw, and the rotating shaft drives the reciprocating screw to rotate.

[0012] Optionally, a first pulley is fitted on the outer wall of the end of the rotating shaft and the two are fixedly connected, and a second pulley is fitted on the outer wall of the end of the reciprocating screw and the two are fixedly connected. A transmission belt is wound around the outer walls of the first pulley and the second pulley, and the first pulley is connected to the second pulley through the transmission belt.

[0013] Optionally, the locking component further includes a guide block and a connecting rod. The guide block is fixedly installed on the side wall of the first support plate away from the spool. The connecting rod is slidably installed on the guide block longitudinally. The end of the connecting rod away from the guide block is fixedly connected to the fixing rod. When the fixing rod moves up and down, it drives the connecting rod to move up and down.

[0014] Optionally, the locking block is fixedly installed at one end of the connecting rod near the guide block, and the locking block is located below the connecting rod. When the connecting rod moves up and down, it drives the locking block to move up and down. After the locking block moves down, it is inserted into the slot on the locking block.

[0015] (III) Beneficial Effects This invention provides a cable laying device for power construction, which has the following beneficial effects: 1. This invention achieves adaptive and precise locking of the cable drum through the coordinated operation of the triggering and locking components, effectively solving the problems of severe cable wear caused by relying on frictional transmission in existing devices and cable slack and tangling due to the inertial rotation of the drum. Specifically, this invention does not rely on the frictional force between the cable and the transmission components for locking control. Instead, the cable tension acts directly on the roller, driving the triggering component to move and release the lock. When the cable stops pulling or slacks, the spring force drives the locking component to automatically engage and lock. Throughout the process, the cable and roller experience rolling friction, resulting in minimal friction and minimizing wear on the cable sheath, thus ensuring the cable's insulation performance and service life. Simultaneously, this locking mechanism is rapid and precise. As soon as the cable slacks, the spring immediately pushes the locking block into its slot, achieving instant locking of the drum and preventing the cable from flying out or becoming tangled due to continuous rotation of the drum due to inertia. This significantly improves the efficiency and stability of cable laying. Compared to the complex structure of existing patents that rely on multiple sets of gears for locking, the locking mechanism of this invention consists of only simple components such as springs, sliders, fixed rods, connecting rods, locking blocks, and locking blocks. It has a simple and compact structure, lower manufacturing costs, and is less affected by dust, sand, and other impurities in outdoor construction environments, resulting in higher operational reliability and significantly reduced maintenance costs.

[0016] 2. This invention achieves automatic and uniform cable laying and winding through the transmission cooperation between the guide assembly and the roller component. Simultaneously, the design of the one-way bearing and handle significantly reduces the labor intensity of operation and improves the applicability of the device. During cable laying and unwinding, the rotating shaft drives the reciprocating screw to rotate via the first pulley, transmission belt, and second pulley. Since the reciprocating screw and the sliding seat form a reciprocating screw pair, and the guide rod limits the sliding direction of the sliding seat, the sliding seat can move laterally back and forth with the rotation of the reciprocating screw, thereby driving the roller to move synchronously. This design ensures that the cable is always evenly unwound along the axial direction of the drum, avoiding concentrated friction between the cable and the roller due to continuous position changes during unwinding, further reducing cable wear. Simultaneously, during cable winding and loading, the operator only needs to turn the handle to drive the rotating shaft to rotate in the opposite direction. The one-way bearing ensures that the reverse rotation of the rotating shaft does not cause the locking block to rotate synchronously, so the engagement state of the locking block and the slot does not hinder the winding operation, making the operation smooth and labor-saving. Furthermore, during the winding process, the sliding seat also moves laterally back and forth with the rotation of the reciprocating screw, causing the cable to be evenly wound on the drum, avoiding irregular stacking of the cable and improving winding quality and efficiency. Compared to existing patents that rely on electric actuators for auxiliary pulling, this invention requires no additional power supply and achieves all functions entirely through mechanical structures. It is more applicable in outdoor construction scenarios where power is scarce, and its operation is simpler and more convenient, significantly reducing the labor intensity of workers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a cable laying device for power construction according to the present invention. Figure 2 This is a cross-sectional view of the sliding seat in a cable laying device for power construction according to the present invention. Figure 3 This is a cross-sectional view of a locking block in a cable laying device for power construction according to the present invention. Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6This is a three-dimensional structural diagram of the second support plate in a cable laying device for power construction according to the present invention.

[0019] In the diagram: 1. First support plate; 2. Connecting rod; 3. Guide block; 4. Wire spool; 5. Cable; 6. Second support plate; 7. Handle; 8. Locking block; 9. Connecting block; 10. Sliding seat; 11. Guide rod; 12. Reciprocating screw; 13. Fixed rod; 14. Roller; 15. Slider; 16. One-way bearing; 17. Locking block; 18. Locking groove; 19. Spring; 20. First pulley; 21. Transmission belt; 22. Second pulley. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and 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 the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments.

[0022] Please see Figures 1 to 6 The present invention provides a technical solution: a cable laying device for power construction, comprising a roller component with multiple turns of cable 5 wound around it, a triggering component, and a locking component. The roller component includes a rotating shaft and a locking block 8. The locking block 8 is unidirectionally rotatable on a section of the rotating shaft, and multiple slots 18 arranged in a circular array are provided on the outer side wall of the locking block 8.

[0023] The triggering components include a sliding seat 10, a roller 14, two springs 19, two sliders 15, and a fixing rod 13. The sliding seat 10 has a longitudinal clearance groove extending through its lower part. Sliding grooves are also formed on both lower side walls of the sliding seat 10. The two sliders 15 are longitudinally slidably installed within the two sliding grooves of the sliding seat 10. The springs 19 are located within the sliding grooves, and their upper and lower ends are fixedly connected to the sliding seat 10 and the sliders 15, respectively. The springs 19 forcefully push the sliders 15 downwards along the sliding grooves. The fixing rod 13 extends laterally through the two sliders 15 and is fixedly connected to both sliders 15. The roller 14 is fitted onto the fixing rod 13, and both are rotatably mounted. The roller 14 is located within the clearance groove of the sliding seat 10. The free end of the cable 5 is wound around the lower semi-circumference of the roller 14.

[0024] The locking component includes a locking block 17. The fixing rod 13 is connected to the locking block 17 in a driving connection, and the locking block 17 corresponds vertically to the locking groove 18. After the locking block 17 is displaced downward, it is inserted into the locking groove 18.

[0025] When laying the extended cable 5, the free end of the cable 5 applies pressure to the roller 14 under the action of tension, causing the roller 14 to move upward. When the cable 5 is stopped being pulled, the elastic force of the spring 19 pushes the slider 15 downward, the slider 15 drives the fixed rod 13 downward, and the fixed rod 13 drives the locking block 17 to move downward. At this time, the locking block 17 is inserted into the locking slot 18.

[0026] The rotating shaft drives the spool 4, on which the cable 5 is wound, to rotate synchronously. It is the core of power transmission for cable unwinding and rewinding, providing basic rotational support for cable laying. The locking block 8 is unidirectionally mounted on the rotating shaft, allowing the rotating shaft to rotate only in the unwinding direction of the cable 5. It works with the slot 18 and the locking block 17 to achieve a locking function, preventing the rotating shaft from rotating in the opposite direction or due to inertia. The slot 18 and the locking block 17 of the locking component are precisely matched. The locking block 8 is fixed by the insertion of the locking block 17, thereby restricting the rotation of the rotating shaft and the spool, providing a mechanical cooperation structure for the locking function. The longitudinal clearance groove of the sliding seat 10 provides space for the up and down movement of the roller 14, avoiding motion interference; the sliding grooves on both sides provide guidance for the longitudinal sliding of the slider 15, ensuring the linearity and stability of the slider 15's movement, and serving as the installation and support carrier for the triggering component. The spring 19 provides a downward elastic force under normal conditions, pushing the slider 15 down along the sliding groove, providing reset power for the locking action; when the cable is pulled, it is compressed and stores elastic potential energy, and when the pulling stops, the potential energy is released to drive the locking. The slider 15 receives the elastic force of the spring 19 and the tension transmitted by the roller 14, enabling it to slide up and down. Simultaneously, through its fixed connection with the fixed rod 13, it transmits its own motion to the fixed rod 13, acting as the intermediary for force and motion transmission. The fixed rod 13 extends laterally through and fixes the two sliders 15, ensuring synchronous movement; it also connects the roller 14 and the locking block 17, enabling the movement of the roller 14 and the locking block 17 in tandem, serving as the transmission bridge between the triggering and locking components. The roller 14 converts the tension of the cable into upward pressure, driving itself upward; the rolling contact reduces friction with the cable sheath, preventing cable damage.

[0027] Cable laying and stretching operation (unlocked state): When the worker pulls the free end of cable 5, the cable exerts an upward pulling force on the roller 14 wound around its lower part. This pulling force is converted into pressure that pushes the roller 14 upward. The roller 14 drives the fixed rod 13 to move upward synchronously. The fixed rod 13 pulls the two sliders 15 upward along the sliding groove of the sliding seat 10, and the compression spring 19 stores elastic potential energy. At the same time, the fixed rod 13 drives the locking block 17 to move upward synchronously, causing the locking block 17 to disengage from the locking groove 18 on the locking block 8, releasing the locking restriction on the locking block 8 and the rotating shaft. The rotating shaft can then drive the spool to rotate, enabling the cable 5 to be unwound smoothly.

[0028] Cable pulling stopped (locked state): When the operator stops pulling cable 5, or when the cable slackens due to the inertia of the spool, the tension of the cable on the roller 14 disappears. At this time, the compressed spring 19 releases its elastic potential energy, pushing the slider 15 downward along the sliding groove under the action of the elastic force. The slider 15 drives the fixed rod 13 downward synchronously, and the fixed rod 13 pulls the locking block 17 downward. Since the locking block 17 corresponds vertically to the locking groove 18, after the locking block 17 moves downward, it is precisely inserted into the locking groove 18, and the locking block 8 is locked by mechanical locking, thereby restricting the rotation of the rotating shaft and the spool 4, preventing the cable 5 from becoming disordered or flying out due to the continuous unwinding of the spool 4 due to inertia, and ensuring laying efficiency and safety.

[0029] Specifically, the roller assembly also includes a bobbin 4, a first support plate 1, and a second support plate 6. The middle of the rotating shaft passes through the bobbin 4 and the two are fixedly installed. The two ends of the rotating shaft pass through the first support plate 1 and the second support plate 6 respectively. The rotating shaft is rotatably installed with the second support plate 6 and unidirectionally installed with the first support plate 1.

[0030] The cable drum 4 is used to wind and store multiple turns of cable 5, providing basic space for the orderly laying and winding of the cable. It is fixedly installed with the rotating shaft and rotates synchronously with it, precisely controlling the unwinding and winding of the cable 5 to prevent it from scattering during laying. The first support plate 1 supports one end of the rotating shaft, providing a stable mounting reference. Through its unidirectional rotational installation with the rotating shaft, it restricts the shaft's rotation direction, allowing it to rotate freely only in the cable unwinding direction. Reverse rotation creates a limit, preventing the cable from becoming misaligned due to the inertial rotation of the cable drum 4. The second support plate 6 is positioned opposite the first support plate 1, together forming the support frame of the device. This ensures the coaxiality of the cable drum 4 and the rotating shaft, preventing offset or shaking during operation. Its rotatable installation with the rotating shaft reduces frictional resistance during rotation, ensuring smooth rotation of the cable drum 4 and improving the smoothness of cable laying.

[0031] The rotating shaft is fixed to the middle of the cable drum 4, and two support plates pass through each end. The rotating installation of the rotating shaft with the second support plate 6 reduces frictional resistance, allowing the rotating shaft to rotate smoothly and thus drive the cable drum 4 to rotate synchronously, realizing the unwinding or winding of the cable 5. The unidirectional rotating installation of the rotating shaft with the first support plate 1 limits the rotating shaft to rotating only in the direction of cable unwinding, preventing ineffective rotation in the opposite direction and avoiding cable loosening and disordering due to inertial rotation of the cable drum 4. Ultimately, it realizes the orderly and smooth laying and winding of the cable.

[0032] More specifically, the roller assembly also includes a one-way bearing 16, which is mounted on the outer side wall of the end of the rotating shaft near the first support plate 1. The locking block 8 is generally annular and is mounted on the outer side wall of the one-way bearing 16. The inner ring of the one-way bearing 16 is fixedly installed with the rotating shaft, and the outer ring of the one-way bearing 16 is fixedly installed with the locking block 8.

[0033] The one-way bearing 16 is fixed to the rotating shaft via its inner ring and to the locking block 8 via its outer ring, thus enabling unidirectional rotation and restricting rotation in the opposite direction. Its key function is to limit the relative rotation direction between the rotating shaft and the locking block 8, allowing the rotating shaft to rotate synchronously with the locking block 8 only in the cable unwinding direction (or allowing the rotating shaft to rotate independently without driving the locking block 8). In the reverse direction, it forces the locking block 8 to rotate in conjunction with the rotating shaft, thus not hindering cable winding operations while providing a reliable directional constraint for the locking function. The locking block 8, by interlocking with the locking component's latch 17, directly restricts its own rotation, thereby transmitting locking force to the rotating shaft via the one-way bearing 16. This prevents the rotating shaft from continuously rotating due to inertia, providing mechanical support for stable locking during cable laying.

[0034] When the rotating shaft rotates along the cable unwinding direction, the one-way bearing 16 allows rotational transmission in that direction (or the rotating shaft rotates alone while the locking block 8 remains stationary). If the cable becomes loose, the locking block 17 can insert into the locking slot 18 of the locking block 8, restricting the rotation of the locking block 8. This, in turn, restricts the rotating shaft from continuing to rotate via the one-way bearing 16, achieving cable spool locking and preventing cable misalignment due to inertia. When the rotating shaft rotates along the cable winding direction (in the opposite direction), the one-way bearing 16 forces the inner and outer rings to rotate synchronously. Even if the locking block 17 is in the insertion position with the slot 18, the locking block 8 will rotate synchronously with the rotating shaft, causing the locking block 17 to automatically disengage from the slot 18, thus not obstructing the winding operation. Throughout the process, the rotating shaft transmits power, the one-way bearing 16 controls the linkage direction, and the locking block 8 provides the locking mechanism. These three components work together to achieve the core functions of lockable unwinding and unobstructed winding, ensuring the orderly laying and winding of the cable.

[0035] More specifically, the roller component also includes a handle 7, which is fixedly connected to the end of the rotating shaft.

[0036] Among them, the handle 7 provides a convenient point of force for the staff, and together with the overall structure of the device, it realizes the functions of cable winding, uniform winding and anti-rotation, and can be operated without an additional power source.

[0037] More specifically, the triggering component also includes a guide assembly, which comprises a guide rod 11, a reciprocating screw 12, and two connecting blocks 9. The two connecting blocks 9 are respectively fixedly mounted on the first support plate 1 and the second support plate 6, and are symmetrically positioned. Both ends of the guide rod 11 are fixedly connected to the two connecting blocks 9, and both ends of the reciprocating screw 12 pass through the two connecting blocks 9, and the reciprocating screw 12 is rotatably mounted to the two connecting blocks 9. The reciprocating screw 12 is parallel to the guide rod 11.

[0038] More specifically, both the guide rod 11 and the reciprocating screw 12 extend laterally through the sliding seat 10. The guide rod 11 is slidably connected to the sliding seat 10, and the reciprocating screw 12 and the sliding seat 10 form a reciprocating screw pair through multiple balls. When the reciprocating screw 12 rotates, it pushes the sliding seat 10 to move laterally back. The rotating shaft is connected to the reciprocating screw 12 for transmission, and the rotating shaft drives the reciprocating screw 12 to rotate.

[0039] The connecting block 9 provides a stable mounting base for the guide rod 11 and the reciprocating screw 12. Its corresponding left and right structures ensure that the guide rod 11 and the reciprocating screw 12 remain parallel, guaranteeing the linearity of the subsequent sliding seat movement and the stability of the equipment operation. It also bears the rotational support load of the reciprocating screw 12, preventing it from shifting or wobbling during operation. The guide rod 11 provides precise guidance for the lateral reciprocating movement of the sliding seat 10, restricting its direction of movement and preventing twisting or shifting during movement. This ensures that the sliding seat 10 slides smoothly along a fixed trajectory, providing directional assurance for the uniform unwinding and rewinding of the cable. The reciprocating screw 12 converts rotational motion into linear reciprocating motion. Through its own rotation, it drives the sliding seat 10 to move laterally back and forth, providing a power transmission basis for adjusting the position during cable unwinding and rewinding, ensuring that the cable is evenly distributed on the drum.

[0040] This guiding assembly provides stable support for the position adjustment of cable 5 during laying and winding. Two corresponding connecting blocks 9 are fixed to the support plate, forming a stable installation frame. These blocks respectively fix the guide rod 11 and support the rotation of the reciprocating screw 12, while ensuring that they remain parallel at all times. The guide rod 11 provides clear movement guidance for the sliding seat 10, limiting its movement trajectory. The reciprocating screw 12 rotates under external power (subsequently linked to the rotating shaft via belt drive). Since it forms a reciprocating screw pair with the sliding seat 10 and is guided and limited by the guide rod 11, the rotational motion of the reciprocating screw 12 is converted into the lateral reciprocating linear motion of the sliding seat 10. Through the cooperation of its components, the entire assembly ensures that the sliding seat 10 can drive the roller to move laterally synchronously with the cable unwinding or winding position, providing core technical support for uniform cable unwinding, avoiding friction damage, and uniform winding during winding, preventing irregular stacking.

[0041] More specifically, a first pulley 20 is fitted on the outer wall of the end of the rotating shaft and the two are fixedly connected. A second pulley 22 is fitted on the outer wall of the end of the reciprocating screw 12 and the two are fixedly connected. A transmission belt 21 is wound around the outer walls of the first pulley 20 and the second pulley 22. The first pulley 20 is connected to the second pulley 22 through the transmission belt 21.

[0042] The system utilizes a belt drive linkage mechanism to synchronously transmit power between the rotating shaft and the reciprocating screw 12, ensuring the power for uniform cable laying and winding. When the rotating shaft rotates (whether pulled by the cable during unwinding or driven by the handle 7 during winding), the first pulley 20 fixed at its end rotates synchronously with the shaft. The first pulley 20, via a transmission belt 21 wound around its outer wall, drives the second pulley 22 to rotate synchronously using friction. Since the second pulley 22 is fixedly connected to the reciprocating screw 12, its rotation directly drives the reciprocating screw 12. The entire process, through the cooperation of the pulleys and the transmission belt 21, smoothly and efficiently transmits the rotational power of the rotating shaft to the reciprocating screw 12, ensuring the screw's rotational speed matches the shaft's speed. This provides stable power for the subsequent lateral reciprocating movement of the sliding seat 10 along the guide rod 11, ultimately achieving uniform cable delivery during unwinding and uniform winding during winding.

[0043] More specifically, the locking component also includes a guide block 3 and a connecting rod 2. The guide block 3 is fixedly installed on the side wall of the first support plate 1 away from the spool 4. The connecting rod 2 is slidably installed longitudinally on the guide block 3, and the end of the connecting rod 2 away from the guide block 3 is fixedly connected to the fixing rod 13. When the fixing rod 13 moves up and down, it drives the connecting rod 2 to move up and down.

[0044] More specifically, the locking block 17 is fixedly installed at one end of the connecting rod 2 near the guide block 3, and the locking block 17 is located below the connecting rod 2. When the connecting rod 2 moves up and down, it drives the locking block 17 to move up and down. After the locking block 17 moves down, it is inserted into the slot 18 on the locking block 8. The guide block 3 provides a stable mounting platform for the connecting rod 2. It has a longitudinal guide hole adapted to the connecting rod 2, precisely restricting the movement direction of the connecting rod 2, allowing it to slide only longitudinally. This prevents the connecting rod 2 from shifting, twisting, or shaking during vertical movement, ensuring that the connecting rod 2 drives the locking block 17 to precisely align with the locking slot 18 of the locking block 8, providing structural assurance for the precise execution of the locking action. The connecting rod 2's function is to transmit the vertical linear movement of the fixed rod 13 completely and synchronously to the locking block 17, ensuring no delay or loss in power transmission, and providing a direct motion transmission path for locking or unlocking actions. When the fixed rod 13 moves upward under the drive of the trigger component, it drives the connecting rod 2 to move synchronously upward along the guide hole of the guide block 3, thereby pulling the locking block 17 out of the locking slot 18 of the locking block 8, achieving unlocking. When the fixed rod 13 moves downward under the elastic force of the spring 19, it drives the connecting rod 2 to move synchronously downward along the guide hole of the guide block 3, pushing the locking block 17 to precisely insert into the locking slot 18, achieving locking. Throughout the process, the guide block 3 ensures motion accuracy, and the connecting rod 2 ensures power transmission. The two work together to ensure that the locking or unlocking action is precise, smooth, and stable, providing core transmission support for the locking control of the cable drum 4 during cable laying.

[0045] During cable laying and unwinding phases: When the worker pulls the free end of cable 5, the cable will exert an upward pulling force on roller 14, which will push roller 14 upward, thereby driving the fixed rod 13 to move upward in sync.

[0046] When the fixed rod 13 moves upward, it pulls the two sliders 15 upward along the sliding groove of the sliding seat 10, and the compressed spring 19 stores elastic potential energy; at the same time, the fixed rod 13 drives the locking block 17 upward through the connecting rod 2, so that the locking block 17 disengages from the locking groove 18 on the locking block 8, and releases the locking restriction on the wire drum 4.

[0047] When the cable is continuously pulled, it will drive the spool 4 and the rotating shaft to rotate in the unwinding direction, so as to achieve smooth unwinding of the cable 5. At the same time as the rotating shaft rotates, the first pulley 20 at its end rotates synchronously, which drives the second pulley 22 to rotate through the transmission belt 21, thereby driving the reciprocating screw 12 to rotate.

[0048] Since the reciprocating screw 12 and the sliding seat 10 form a reciprocating screw pair, and the guide rod 11 restricts the movement direction of the sliding seat 10, the rotation of the reciprocating screw 12 will be converted into the transverse reciprocating linear motion of the sliding seat 10, which will drive the roller 14 to move horizontally in sync, so that the cable 5 is evenly unwound along the axial direction of the spool 4, avoiding local friction damage.

[0049] Automatic locking phase: When the worker stops pulling the cable 5, or when the pull speed is too fast and the inertia of the drum 4 continues to rotate, causing the cable 5 between the drum 4 and the roller 14 to become loose, the tension of the cable on the roller 14 disappears.

[0050] The compressed spring 19 releases its elastic potential energy, and under the action of elastic force, it pushes the slider 15 down along the sliding groove. The slider 15 drives the fixed rod 13 down synchronously, and the fixed rod 13 drives the locking block 17 to move down through the connecting rod 2.

[0051] The locking block 17 is precisely inserted into the locking slot 18 of the locking block 8, and the rotation of the locking block 8 is restricted by mechanical locking. At this time, the one-way bearing 16 prevents the rotating shaft from continuing to rotate in the unwinding direction, thereby achieving instant locking of the spool 4 and preventing the cable 5 from flying out or getting tangled due to inertia.

[0052] Cable winding stage: When it is necessary to retract cable 5, the operator turns handle 7 to drive the rotating shaft to rotate in the opposite direction of the winding.

[0053] Due to the characteristics of the one-way bearing 16, when the rotating shaft rotates in the opposite direction, it will force the inner ring body and the outer ring body to rotate synchronously. Even if the locking block 17 and the slot 18 are in the insertion state, the locking block 8 will rotate synchronously with the rotating shaft, so that the locking block 17 will automatically disengage from the slot 18 and will not hinder the winding action.

[0054] The rotating shaft drives the spool 4 to rotate synchronously in the opposite direction, realizing the winding and storage of the cable 5; at the same time, the rotating shaft continues to drive the reciprocating screw 12 to rotate through the belt drive assembly, causing the sliding seat 10 to move laterally back and forth, driving the cable 5 to be evenly wound on the spool 4, avoiding irregular stacking.

[0055] During the winding process, the locking block 17 and the locking slot 18 always maintain dynamic adaptation, which can effectively prevent the spool 4 from rotating due to external force or inertia and ensure the stability of the winding process. After winding is completed, the handle 7 is released, and the spring 19 drives the locking block 17 to re-insert into the locking slot 18 to lock the spool 4 and prevent the cable from loosening.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable laying device for power construction, characterized in that: It includes a roller component with multiple turns of cable (5) wound around it, a trigger component and a locking component; the roller component includes a rotating shaft and a locking block (8), the locking block (8) is unidirectionally rotatable on a section of the rotating shaft, and multiple slots (18) arranged in a ring array are provided on the outer side wall of the locking block (8). The triggering component includes a sliding seat (10), a roller (14), two springs (19), two sliders (15), and a fixing rod (13). The sliding seat (10) has a longitudinal clearance groove that runs through its lower part. The two lower side walls of the sliding seat (10) are also provided with sliding grooves. The two sliders (15) are respectively longitudinally slidably installed in the two sliding grooves of the sliding seat (10). The springs (19) are located in the sliding grooves, and the upper and lower ends of the springs (19) are fixedly connected to the sliding seat (10) and the sliders (15) respectively. The springs (19) push the sliders (15) downward along the sliding grooves. The fixing rod (13) runs horizontally through the two sliders (15), and the fixing rod (13) is fixedly connected to the two sliders (15). The roller (14) is fitted on the fixing rod (13) and the two are rotatably installed. The roller (14) is located in the clearance groove of the sliding seat (10). The free end of the cable (5) is wound around the lower half of the roller (14). The locking component includes a locking block (17); the fixing rod (13) is connected to the locking block (17) in a transmission manner, and the locking block (17) corresponds vertically to the slot (18). After the locking block (17) is displaced downward, it is inserted into the slot (18). When laying the extended cable (5), the free end of the cable (5) applies pressure to the roller (14) under the action of the tension, causing the roller (14) to move upward; when the cable (5) is stopped, the elastic force of the spring (19) pushes the slider (15) downward, the slider (15) drives the fixed rod (13) downward, the fixed rod (13) drives the locking block (17) to move downward, and at this time the locking block (17) is inserted into the slot (18).

2. The cable laying equipment for power construction according to claim 1, characterized in that: The roller component also includes a bobbin (4), a first support plate (1), and a second support plate (6). The middle part of the rotating shaft passes through the bobbin (4) and the two are fixedly installed. The two ends of the rotating shaft pass through the first support plate (1) and the second support plate (6) respectively. The rotating shaft and the second support plate (6) are rotatably installed. The rotating shaft and the first support plate (1) are unidirectionally rotatably installed.

3. The cable laying equipment for power construction according to claim 2, characterized in that: The roller assembly also includes a one-way bearing (16), which is mounted on the outer side wall of the end of the rotating shaft near the first support plate (1). The locking block (8) is annular in shape and is mounted on the outer side wall of the one-way bearing (16). The inner ring of the one-way bearing (16) is fixedly installed with the rotating shaft, and the outer ring of the one-way bearing (16) is fixedly installed with the locking block (8).

4. The cable laying equipment for power construction according to claim 3, characterized in that: The roller component also includes a handle (7), which is fixedly connected to the end of the rotating shaft.

5. The cable laying equipment for power construction according to claim 2, characterized in that: The triggering component also includes a guide assembly, which includes a guide rod (11), a reciprocating screw (12), and two connecting blocks (9). The two connecting blocks (9) are respectively fixedly installed on the first support plate (1) and the second support plate (6), and the two connecting blocks (9) are symmetrical. The two ends of the guide rod (11) are fixedly connected to the two connecting blocks (9), and the two ends of the reciprocating screw (12) pass through the two connecting blocks (9), and the reciprocating screw (12) is rotatably installed with the two connecting blocks (9). The reciprocating screw (12) is parallel to the guide rod (11).

6. The cable laying equipment for power construction according to claim 5, characterized in that: The guide rod (11) and the reciprocating screw (12) both pass through the sliding seat (10) laterally. The guide rod (11) is slidably connected to the sliding seat (10). The reciprocating screw (12) and the sliding seat (10) are connected by multiple balls to form a reciprocating screw pair. When the reciprocating screw (12) rotates, it pushes the sliding seat (10) to move laterally back and forth. The rotating shaft is connected to the reciprocating screw (12) in a transmission, and the rotating shaft drives the reciprocating screw (12) to rotate.

7. The cable laying equipment for power construction according to claim 6, characterized in that: A first pulley (20) is fitted on the outer wall of the end of the rotating shaft and the two are fixedly connected. A second pulley (22) is fitted on the outer wall of the end of the reciprocating screw (12) and the two are fixedly connected. A transmission belt (21) is wound around the outer walls of the first pulley (20) and the second pulley (22). The first pulley (20) is connected to the second pulley (22) through the transmission belt (21).

8. The cable laying equipment for power construction according to claim 2, characterized in that: The locking component also includes a guide block (3) and a connecting rod (2). The guide block (3) is fixedly installed on the side wall of the first support plate (1) away from the spool (4). The connecting rod (2) is slidably installed on the guide block (3) in the longitudinal direction. The end of the connecting rod (2) away from the guide block (3) is fixedly connected to the fixing rod (13). When the fixing rod (13) moves up and down, it drives the connecting rod (2) to move up and down.

9. A cable laying device for power construction according to claim 8, characterized in that: The locking block (17) is fixedly installed at one end of the connecting rod (2) near the guide block (3), and the locking block (17) is located below the connecting rod (2). When the connecting rod (2) moves up and down, it drives the locking block (17) to move up and down. After the locking block (17) moves down, it is inserted into the slot (18) on the locking block (8).

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