Visual combined type stringing tackle

Abstract

The invention discloses a visual combined stringing tackle, which belongs to the field of intelligent assistive devices used in the lead erection construction process of a high-voltage transmission line, and comprises a main hanging plate and a bottom plate, and a transverse guide wheel shaft sleeved with a lead wheel is arranged between side vertical columns on the two sides. The lower end of the main hanging plate is provided with a row of wire blocking frame installation holes used for installing the wire blocking frames, the distance between the wire blocking frame installation holes is the same as the width of the wire guide wheel, the two wire blocking frames are oppositely and fixedly arranged below the main hanging plate through the wire blocking frame installation holes, and a telescopic wire blocking rotating shaft is connected between the two wire blocking frames through two wire blocking reset devices. Two drooping wire blocking stabilizers with the same specification are fixedly arranged on the wire blocking rotating shaft; a plurality of optical fibers are uniformly arranged on each guide wheel, a plurality of digital optical sensors matched with the optical fibers are embedded in the guide wheel shaft, and a detection box for processing data of the digital optical sensors is arranged on the side surface of the guide wheel shaft. The walking board can conveniently and stably pass through, and meanwhile the cable pay-off distance can be visually monitored.

Description

Technical Field

[0001] The invention relates to the field of intelligent auxiliary tools used in the construction process of conductor erection of high-voltage power transmission lines, and in particular to an intelligent erection pulley for erecting power transmission lines. Background Art

[0002] In the current field of ultra-high voltage transmission lines, split conductors are widely used to replace traditional large-section conductors. The so-called split conductor is to combine two or more conductors in an orderly manner according to a specific geometric cross-sectional layout to form an equivalent "large conductor" to undertake the task of transmitting one-phase power. This design has many significant advantages. On the one hand, the split conductor can effectively reduce the electric field strength on the surface of the conductor, reduce the generation of corona phenomenon, and thus reduce power loss and electromagnetic interference; on the other hand, compared with a single large-section conductor, the split conductor can reduce the use of non-ferrous metals under the same transmission capacity requirements, while ensuring transmission performance and reducing construction costs.

[0003] In the process of erecting split conductors, the tension line construction method has become the mainstream choice due to its unique advantages. At the beginning of construction, the construction workers will accurately hang the pulley on each tension tower one by one. These tension towers, as the key supporting structures of the entire transmission line, not only have to bear the weight of the conductors themselves, but also have to deal with various tensions generated during the line erection process. The pulley plays a vital guiding role, ensuring that the conductors can move smoothly during the traction process to avoid jamming, twisting and other conditions.

[0004] At the beginning of the construction line, a large-tonnage traction machine will be installed, which can provide strong and stable traction to promote the entire line stringing work. At the other end, a professional tension pay-off machine will be equipped, and the cable conductors will be neatly placed on the tension pay-off machine. The tension pay-off machine is responsible for accurately controlling the speed and tension of the conductor pay-off, ensuring that the conductor will not be loose or drag on the ground due to too little tension during the pay-off process, nor will the internal structure of the conductor be damaged due to too much tension, affecting its power transmission performance.

[0005] Construction workers will use special connectors to connect the cable conductors, traction steel ropes and traction ropes in sequence to form a complete system. As the "backbone" of the entire traction system, the traction steel rope has extremely high strength and toughness, and can withstand huge tension to ensure that it will not break when traction is carried out over long distances. The traction rope is the key link between the traction machine and the traction steel rope and wire, and is responsible for transmitting the strong pulling force generated by the traction machine to the wire.

[0006] After the connection is completed, the construction workers will pass the traction rope and other components through the pulley hanging on the tension tower in turn. After all the components have passed through the pulley smoothly, the entire system will be finally connected to the traction machine at the other end of the transmission line. At this time, as the traction machine slowly starts, the strong traction force is transmitted to the conductor along the traction rope and traction steel rope. With the cooperation of the tension pay-off machine, the conductor is gradually pulled to the predetermined position at a stable speed and appropriate tension, completing the erection of the split conductor of the ultra-high voltage transmission line.

[0007] Document CN102074910B discloses a combined wire pulley, wherein a plurality of combined wire wheels are arranged on a frame, and a plurality of wire retaining wheels are arranged on both sides above the wire wheels by means of a retaining wheel frame. The number of wire wheels can be added according to the number of split wires to adapt to different working conditions. At the same time, the existence of the retaining wheel can also increase the width and distance of the retaining wire, and play a protective role to ensure that the traction rope, the walking board, the wire, and the connector are not separated from the wire wheel, and further ensure that the wire is not off. However, this structure is relatively ideal, and the requirements for the stability of the position and posture of the walking board when passing through the pulley are relatively high. Various problems are likely to occur in the actual work and production process. For example, when the walking board carries the cable through the pulley, the position is not aligned, and the walking board will be directly stuck on the retaining wheel, and it cannot pass through the pulley and cannot carry out subsequent traction work. When the walking board posture is not stable enough, although it barely passes through the pulley, the subsequent traction cable may appear, because the vibration of the walking board is unevenly distributed on the guide wheel, and the retaining stabilizer can only ensure that it does not separate from the wire wheel, but cannot ensure the balance of the walking board. At the same time, because the size of the ultra-high voltage transmission line is large and the cable length is very long, although the traction frame and the walking board are used to pull each split cable evenly, there will always be traction failures of individual cables. At this time, the pulley is always monitored from a distance with the help of a telescope, and the cable is observed by human eyes. It is time-consuming and laborious, and it is difficult to directly detect the cable traction failure, which affects the orderly progress of the traction work. Therefore, there is an urgent need for a pulley that can not only ensure the balance of the walking board through stability, but also monitor the cable traction length through numerical visualization. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a visual combined wire pulling pulley, which aims to solve the problems that when the pulley is working, the walking board connected to the traction cable is stuck on the pulley or the subsequent cable distribution is irregular due to the instability of the pulley, and it is difficult to visually supervise the cable laying length.

[0009] To solve the above technical problems, the technical solution adopted by the present invention is: a visual combined wire pulling pulley, comprising a main hanging plate and a bottom plate, side columns are arranged on both sides between the main hanging plate and the bottom plate to form a frame, a horizontal guide wheel shaft is arranged between the side columns on both sides, a plurality of wire wheels of the same specifications are sleeved on the guide wheel shaft, a main hook and an auxiliary hook of the lifting pulley are arranged on the top of the main hanging plate, a row of wire stopper frame mounting holes for installing the wire stopper frame are arranged at the lower end of the main hanging plate, the spacing between the wire stopper frame mounting holes is the same as the width of the wire wheel, two wire stopper frames are relatively fixedly arranged below the main hanging plate through the wire stopper frame mounting holes, a retractable wire stopper rotating shaft is arranged between the two wire stopper frames through two wire stopper resetters, and two wire stopper stabilizers of the same specifications hanging down are fixedly arranged on the wire stopper rotating shaft; a plurality of optical fibers are evenly arranged on each wire wheel, a plurality of digital optical sensors cooperating with the optical fibers are embedded on the guide wheel shaft, and a detection box for processing digital optical sensor data is arranged on the side of the guide wheel shaft.

[0010] A further improvement of the technical solution of the present invention is that two wire stoppers are located between the side columns on both sides, arranged above the outer sides of the wire wheels on both sides, and corresponding to the upper edges of the wire wheels.

[0011] A further improvement of the technical solution of the present invention is that an external thread is provided on the top of the wire stop stabilizer, an internal thread hole is provided on the wire stop rotating shaft, the wire stop stabilizer is fixed on the wire stop rotating shaft by mutual engagement, a number of horizontal rotating wheels are provided in the middle of the wire stop stabilizer through a bearing sleeve, and a vertical rotating wheel cooperating with the walking plate guide rail is provided at the bottom of the wire stop stabilizer.

[0012] A further improvement of the technical solution of the present invention is that the wire stopper resetter includes a shell, a fixed shaft is arranged in the shell, one end of which is fixedly connected to the wire stopper frame by a thread, the other end of the fixed shaft is rotatably connected to the wire stopper rotating shaft by a bearing, a curled reset spring is sleeved on the fixed shaft, one end of the reset spring is fixed on the fixed shaft, and the other end is fixed on the wire stopper rotating shaft.

[0013] A further improvement of the technical solution of the present invention is that a groove is arranged on the outside of the guide wheel rim, a plurality of hollow spokes are evenly arranged between the guide wheel rim and the hub, through holes are opened at positions corresponding to the spokes on the rim groove and the hub, and optical fibers are embedded in the spokes.

[0014] A further improvement of the technical solution of the present invention is that a cable detection unit for receiving digital light sensor information, an MCU, a wifi communication unit and a gyroscope for detecting the pulley posture are arranged in the detection box.

[0015] A further improvement of the technical solution of the present invention is that the MCU uses the cable detection unit to detect the cable laying distance as follows:

[0016] Step 1: Obtain the circumference information of the wire wheel rim and the number of spokes n;

[0017] Step 2: MCU controls the digital optical sensor embedded in the guide wheel shaft to emit a light signal of a certain wavelength, and the light signal is transmitted to the groove surface of the rim through the optical fiber embedded in the spoke;

[0018] Step 3: During the operation of the pulley, the cable moves in the outer groove of the wheel 5, thereby driving the wheel 5 to rotate. If there is no cable on the optical fiber point in the wheel groove, the optical fiber returns a bright signal to the digital optical sensor. If there is a cable pressing on the optical fiber point, a dark signal is returned to the digital optical sensor.

[0019] Step 4: Each time the MCU detects a dark signal, it means that the cable has traveled a length of 1 / n of the circumference of the conductor wheel. By counting the number of times the dark signal is detected, the laying distance of each cable can be counted.

[0020] A further improvement of the technical solution of the present invention is that support seats with anchor holes are provided at both ends of the bottom plate for stably and firmly placing the pulley on the ground, and playing a role of stable support when storing and using on the ground.

[0021] A further improvement of the technical solution of the present invention is that three horizontal rotating wheels are arranged in the middle of the wire retaining stabilizer through a bearing sleeve, and four hollow spokes are evenly arranged on each wire wheel, and four optical fibers are embedded therein correspondingly.

[0022] A further improvement of the technical solution of the present invention is that the side column on one side is movably connected to the main hanging plate through a connecting plate.

[0023] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is: by setting a wire-blocking rotating shaft, and then setting a hanging wire-blocking stabilizer on the wire-blocking rotating shaft, the wire-blocking stabilizer can be rotated with the help of the wire-blocking rotating shaft, and the position is not fixed, so even if the position of the walking board is not aligned, it can pass through the pulley and will not be stuck on the pulley. At the same time, because a reset mechanism is set on the hanging wire-blocking stabilizer, the reset mechanism will give the wire-blocking stabilizer a downward pressure, thereby pressing the wire-blocking stabilizer on the walking board, so that the posture of the walking board is stable when passing through the pulley, and the vibration is reduced. At the same time, the wire-blocking stabilizer is designed as a rod-shaped structure, and a rotating wheel that rotates forward and backward is set below the wire-blocking stabilizer. The rotating wheel can be pressed into the guide rail of the walking board in cooperation with the reset mechanism, which is more convenient for positioning, and the walking board passing position is limited to reduce the walking board resistance. At the same time, the cooperation between the wire-blocking device and the walking board guide rail greatly reduces the vibration of the walking board, ensures the balance of the walking board, and increases the stability of the walking board passing through the pulley. At the same time, multiple horizontal wheels are set in the middle of the wire stabilizer, which can also play the role of blocking the wire. The ability to rotate left and right can reduce the resistance to the wire wheel and the board. At the same time, by evenly setting multiple optical fibers on each guide wheel with digital light sensors, the number of rotations of each guide wheel can be calculated through the detection and calculation of light and dark signals. At the same time, the length of the cable on each guide wheel can be calculated through the circumference of the guide wheel. The length of the cable is digitized, and the length value of each cable is visually compared, which is convenient for monitoring the traction of each cable, which is more convenient and intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of the pulley of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the wire wheel in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the wire retaining frame and the wire retaining stabilizer in the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the guide wheel shaft and the digital light sensor in the present invention;

[0029] Figure 5 It is a circuit functional block diagram of a cable detection unit;

[0030] Figure 6 It is a structural schematic diagram of the wire stop resetter.

[0031] Among them, 1. main hanging plate, 2. bottom plate, 3. side column, 4. guide wheel shaft, 5. wire pulley, 6. main hook, 7. auxiliary hook, 8. wire stop rack, 81. wire stop resetter, 82. reset spring, 9. wire stop rack mounting hole, 10. wire stop shaft, 11. wire stop stabilizer, 111. horizontal rotating wheel, 112. vertical rotating wheel, 12. optical fiber, 13. digital light sensor, 14. detection box, 15. anchor hole, 16. support seat. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with embodiments:

[0033] like Figure 1 As shown, it is a structural schematic diagram of a visual combined wire rope pulley, including a main hanging plate 1, a bottom plate 2 is arranged below the main hanging plate 1, and side columns 3 arranged on both sides are arranged between the main hanging plate 1 and the bottom plate 2 to form a main frame. In order to facilitate the disassembly and assembly of the pulley and play a double insurance role, the side column 3 on one side is directly connected between the main hanging plate 1 and the bottom plate 2 by bolts, and the bottom of the side column 3 on the other side is connected to the bottom plate 2 by bolts, and the top is movably connected to the main hanging plate 1 through a connecting plate. In this embodiment, the connecting plate is divided into two parts, namely a main connecting plate and a secondary connecting plate, wherein the upper end of this side column 3 is movably connected to the main connecting plate and the secondary connecting plate by bolts, and the main connecting plate is connected to the main hanging plate 1 by a pin shaft, and the secondary connecting plate is a downward fork-shaped, the lower part is hinged on the side column 3 by a pin shaft, and the upper part is buckled on the end of the main hanging plate 1, and then the secondary connecting plate and the main hanging plate 6 are connected together by a pin shaft. The supporting seats 16 with anchor holes 15 provided at both ends of the bottom plate 2 can place the pulley stably and firmly on the ground, and play a role of stable support when stored and used on the ground. A horizontal guide wheel shaft 4 is provided and passed through between the side columns 3 on both sides. A plurality of wire pulleys 5 of the same specifications are sleeved on the guide wheel shaft 4. The specific number depends on the number of split wires installed. The guide wheel shaft 4 and the side columns 3 are fixed by nuts at both ends. A main hook 6 and a secondary hook 7 for hoisting the pulley are provided on the top of the main hanging plate 1. A row of wire retaining frame mounting holes 9 for installing the wire retaining frame 8 are provided at the lower end of the main hanging plate 1. The spacing between the wire retaining frame mounting holes 9 is the same as the width of the wire pulley 5. Figure 3As shown, two wire retaining frames 8 are installed in the wire retaining frame installation holes 9 relative to each other by using wire retaining frame bolts. The position of the wire retaining frames 8 can be adjusted according to the number of wire guide wheels 5. A rotatable, resettable and retractable wire retaining shaft 10 is connected between the two wire retaining frames 8 through two wire retaining resetters 81. Two wire retaining stabilizers 11 of the same specification hanging down are fixedly arranged on the wire retaining shaft 10. The wire retaining stabilizers 11 are rod-shaped structures, located between the side columns 3 on both sides, and are respectively arranged above the outer sides of the wire guide wheels on both sides, corresponding to the upper edges of the wire guide wheels 5 on the outermost sides. A protruding mounting shaft is provided on the top of the wire retaining stabilizer 11, and an external thread is provided on the mounting shaft. A matching internal thread hole is provided below the wire retaining shaft 10. The mounting shaft is screwed into the internal thread hole and engaged with each other to fix the wire retaining stabilizer 11 on the wire retaining shaft 10. A plurality of horizontal rotating wheels 111 are provided in the middle of the wire retaining stabilizer 11 through a plurality of bearing sleeves. In this embodiment, there are 3 horizontal rotating wheels 111. An internal thread hole is also provided at the bottom of the wire retaining stabilizer 11. A mounting shaft with an external thread is also provided on the vertical rotating wheel 112 that can rotate unidirectionally in the vertical direction. It is fixed to the bottom of the wire retaining stabilizer 11 through threaded engagement. The vertical rotating wheel 112 can be rotated to adjust the direction of the position to match the track on the walking board. Figure 6 The wire stop resetter 81 shown includes a shell, and a fixed shaft is arranged inside the shell, one end of which is fixedly connected to the wire stop frame 8 by a thread and does not rotate. The other end of the fixed shaft is rotatably connected to the wire stop shaft 10 by a bearing. The wire stop shaft 10 can rotate. A curled reset spring 82 is sleeved on the fixed shaft, and one end of the reset spring 82 is fixed to the fixed shaft, and the other end is fixed to the wire stop shaft 10. When the wire stop stabilizer 11 is hit by the running board, and then the wire stop shaft 10 is driven to rotate, the reset spring 82 will give the wire stop shaft 10 a restoring force to press down the running board. Figure 2 As shown, each guide wheel 5 is mounted on the guide wheel shaft through a hub sleeve, and a groove for the cable to be positioned is arranged on the outer rim of the guide wheel 5. Hollow spokes are evenly arranged between the rim and the hub of the guide wheel 5, and optical fibers 12 are embedded in the spokes. In order to match the optical fiber, through holes are opened at the corresponding positions of the optical fiber at both ends of the spokes on the rim groove and the hub as optical fiber points. Figure 4 As shown, a digital optical sensor 13 matching with the optical fiber 12 is embedded in the corresponding position of each guide wheel 5 on the guide wheel shaft 4, and follows the guide wheel shaft 4 without rotating. A detection box 14 for processing digital optical sensor data is set on the side of the guide wheel shaft 4, which is connected to the digital optical sensor 13 through an external wiring. A cable detection unit for receiving digital optical sensor information is set in the detection box 14. The circuit diagram of the cable detection unit is shown in FIG. Figure 5 As shown. The detection box 14 is also provided with an MCU, a wifi communication unit and a gyroscope for detecting the pulley posture. The method by which the MCU detects the pay-out distance of each split cable installed on the guide wheel 5 with the aid of the cable detection unit is as follows:

[0034] Step 1: Get the circumference information of the wire wheel 5 and the number of spokes. In this embodiment, there are 4 spokes. When the cables pass through the wire wheels 5, they will drive the wire wheels 5 to rotate. Although slippage may occur, because the cable size is very long, slight slippage does not affect the final result. The rotation of the wire wheel 5 can be used to count the corresponding cable pay-off length.

[0035] Step 2: MCU controls the digital optical sensor embedded in the guide wheel shaft to emit a light signal of a certain wavelength, and the light signal is transmitted to the groove surface of the rim through the optical fiber embedded in the spoke;

[0036] Step 3: During the operation of the pulley, the cable moves in the outer groove of the wheel 5, thereby driving the wheel 5 to rotate. If there is no cable on the optical fiber point in the wheel groove, the optical fiber returns a bright signal to the digital optical sensor. If there is a cable pressing on the optical fiber point, a dark signal is returned to the digital optical sensor.

[0037] Step 4: Each time the MCU detects a dark signal, it means that the cable has traveled 1 / 4 of the circumference of the 5-wheel rim of the conductor wheel. By counting the number of times the dark signal is detected, the laying distance of each cable can be counted.

[0038] Step 5: The MCU transmits the specific figures of the laying distance of each cable to the staff's terminal through the WiFi communication unit. The staff can monitor by comparing the laying distances of each cable. When the laying distance of one or several cables is significantly lower than that of the other cables, a traction failure occurs in the diverted cable.

[0039] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A visual combined wire-hanging pulley, comprising a main hanging plate (1) and a bottom plate (2), side columns (3) are arranged on both sides between the main hanging plate (1) and the bottom plate (2) to form a vehicle frame, a transverse guide wheel shaft (4) is arranged between the side columns (3) on both sides, a plurality of wire pulleys (5) of the same specification are sleeved on the guide wheel shaft (4), a main hook (6) and a secondary hook (7) for hoisting a pulley are arranged on the top of the main hanging plate (1), a row of wire-stopping frame mounting holes (9) for mounting wire-stopping frames (8) are arranged at the lower end of the main hanging plate (1), the spacing between the wire-stopping frame mounting holes (9) is the same as the width of the wire pulley (5), two wire-stopping frames (8) are relatively fixedly arranged below the main hanging plate (1) through the wire-stopping frame mounting holes (9), and the characteristics are: A retractable wire blocking shaft (10) is connected between two wire blocking racks (8) via two wire blocking resetters (81), and two wire blocking stabilizers (11) of the same specification are fixedly arranged on the wire blocking shaft (10). A plurality of optical fibers (12) are evenly arranged on each wire guide wheel (5), a plurality of digital optical sensors (13) cooperating with the optical fibers (12) are embedded on the guide wheel shaft (4), and a detection box (14) for processing digital optical sensor data is arranged on the side of the guide wheel shaft (4).

2. A visual combined wire rope pulley according to claim 1, characterized in that: Two wire-blocking stabilizers (11) are located between the side columns (3) on both sides, and are arranged above the outer sides of the wire wheels (5) on both sides, corresponding to the upper edges of the wire wheels (5).

3. The visual combined wire rope pulley according to claim 1, characterized in that: The top of the wire stop stabilizer (11) is provided with an external thread, and the wire stop rotating shaft (10) is provided with an internal thread hole. The wire stop stabilizer (11) is fixedly arranged on the wire stop rotating shaft (10) by mutual engagement. A plurality of horizontal rotating wheels (111) are arranged in the middle of the wire stop stabilizer (11) through a bearing sleeve, and a vertical rotating wheel (112) cooperating with the walking board guide rail is arranged at the bottom of the wire stop stabilizer (11).

4. A visual combined wire rope pulley according to claim 3, characterized in that: The wire stop resetter (81) comprises a housing, wherein a fixed shaft is arranged in the housing, one end of which is fixedly connected to the wire stop frame (8) via a thread, the other end of which is rotatably connected to the wire stop rotating shaft (10) via a bearing, and a curled reset spring (82) is sleeved on the fixed shaft, one end of the reset spring (82) is fixed to the fixed shaft, and the other end is fixed to the wire stop rotating shaft (10).

5. The visual combined wire rope pulley according to claim 1, characterized in that: A groove is arranged on the outside of the rim of the guide wheel (5); a plurality of hollow spokes are evenly arranged between the rim and the hub of the guide wheel (5); through holes are opened in the rim groove and at positions on the hub corresponding to the spokes; optical fibers (12) are embedded in the spokes.

6. The visual combined wire rope pulley according to claim 5, characterized in that: The detection box (14) is provided with a cable detection unit for receiving digital light sensor information, an MCU, a wifi communication unit and a gyroscope for detecting the pulley posture.

7. A visual combined wire rope pulley according to claim 6, characterized in that: The method for MCU to detect the cable laying distance with the help of the cable detection unit is as follows: Step 1: Obtain the circumference information of the wire wheel (5) and the number of spokes n; Step 2: MCU controls the digital optical sensor embedded in the guide wheel shaft to emit a light signal of a certain wavelength, and the light signal is transmitted to the groove surface of the rim through the optical fiber embedded in the spoke; Step 3: During the operation of the pulley, the cable moves in the outer groove of the wheel rim of the guide wheel (5), thereby driving the guide wheel (5) to rotate. If there is no cable on the optical fiber point in the wheel rim groove, the optical fiber returns a bright signal to the digital optical sensor. If there is a cable pressing on the optical fiber point, a dark signal is returned to the digital optical sensor. Step 4: Each time the MCU detects a dark signal, it indicates that the cable has traveled a length 1 / n of the circumference of the conductor wheel (5). By counting the number of times the dark signal is detected, the laying distance of each cable can be counted.

8. The visual combined wire rope pulley according to claim 1, characterized in that: Both ends of the bottom plate (2) are provided with support seats (16) with anchor holes (15) for stably and firmly placing the pulley on the ground and playing a stable supporting role when storing and using on the ground.

9. A visual combined cable pulley according to any one of claims 1, 3 and 5, characterized in that: The middle part of the wire retaining stabilizer (11) is provided with three horizontal rotating wheels (111) through a bearing sleeve, and each wire wheel (5) is evenly provided with four hollow spokes, and four optical fibers (12) are correspondingly embedded therein.

10. The visual combined wire rope pulley according to claim 1, characterized in that: The side column (3) on one side is movably connected to the main hanging plate (1) via a connecting plate.

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