Surface cleaning device and method for overhead cables

Abstract

This invention provides a surface cleaning device and method for overhead cables, relating to the field of cable cleaning. The surface cleaning device includes a main housing, cable guide rollers, a fixed cover, a rotating cleaning seat, and a drive mechanism. The main housing has a cleaning chamber inside, where the cable guide rollers are installed and form a cable guide path. The fixed cover is located within the cleaning chamber, and the rotating cleaning seat is rotatably installed inside the fixed cover. The axis of the cable guide hole of the rotating cleaning seat extends along the cable guide path. The drive mechanism is connected to the rotating cleaning seat to drive its circumferential rotation. The fixed cover also contains multiple cleaning balls. One end of the rotating cleaning seat has a cleaning inlet, and the other end has a cleaning outlet, allowing the cable to move from the cleaning inlet to the cleaning outlet. The cleaning balls enter the cable guide hole through the cleaning inlet and engage with the cable through friction. An annular gap is provided between the rotating cleaning seat and the inner wall of the fixed cover, allowing the cleaning balls to enter the annular gap through the cleaning outlet and self-clean.

Description

Technical Field

[0001] This invention relates to the field of cable cleaning technology, and in particular to a surface cleaning device and cleaning method for overhead cables. Background Technology

[0002] Overhead cables are a new type of power transmission cable, mainly used to connect overhead lines and electrical equipment. They consist of conductive cores, insulation layers, and protective sheaths. Overhead cables are less affected by weather conditions and the surrounding environment, and feature high power supply reliability and stable transmission performance.

[0003] After the initial processing of overhead cables, the cable surface needs to be cleaned to remove various contaminants such as dust, grease, and rust, to prevent these contaminants from affecting the performance and lifespan of the overhead cables. The current cable cleaning method involves conveying the cable through a water tank, where fixed sponges in the water wipe the cable surface during transport, thus achieving the cleaning purpose. In practical applications, because the sponges are constantly in frictional contact with the cable's outer surface, they easily accumulate a large amount of dirt after prolonged cleaning, resulting in poor continuous cleaning effectiveness. Furthermore, it is difficult for workers to observe the amount of dirt accumulated on the sponges. If the sponges are not replaced for a long time, the heavily soiled sponges will be unable to clean the cable surface; conversely, frequent replacement of the sponges will interrupt the cleaning process, leading to low cleaning efficiency.

[0004] In summary, when using a sponge to clean the surface of cables, the sponge itself tends to accumulate a lot of dirt, resulting in poor continuous cleaning effect on the cables. Furthermore, frequent replacement of the sponge will interrupt the cleaning process, leading to low cleaning efficiency of the cable surface. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a surface cleaning device and method for overhead cables, thereby solving the problems that when using sponge blocks to clean the cable surface, the sponge blocks themselves tend to accumulate a large amount of dirt, resulting in poor continuous cleaning effect on the cables. Furthermore, frequent replacement of the sponge blocks will interrupt the cleaning process, leading to low efficiency in cleaning the cable surface.

[0006] The technical solution of the surface cleaning device for overhead cables of the present invention is as follows:

[0007] The surface cleaning device for overhead cables includes a main housing, cable guide rollers, a fixed cover, a rotating cleaning seat, and a drive mechanism. The main housing has a cleaning chamber inside, and the cable guide rollers are installed in the cleaning chamber to form a cable guiding path.

[0008] The fixed cover is disposed in the cleaning chamber, and the rotating cleaning seat is rotatably installed inside the fixed cover. The rotating cleaning seat has a cable guide hole in the middle, and the axis of the cable guide hole extends along the cable guide path. The driving mechanism is connected to the rotating cleaning seat to drive the rotating cleaning seat to rotate circumferentially around the cable guide hole.

[0009] The fixed cover is also provided with a plurality of cleaning balls, one end of the rotating cleaning seat is provided with a cleaning inlet, and the other end of the rotating cleaning seat is provided with a cleaning outlet, so that the cable can move from the cleaning inlet to the cleaning outlet;

[0010] The cleaning ball is used to enter the cable guide hole through the cleaning inlet and to engage with the cable through friction; an annular gap is provided between the rotating cleaning seat and the inner wall of the fixed cover, and the cleaning ball is also used to enter the annular gap through the cleaning outlet.

[0011] Furthermore, a flushing ring seat is also installed on the outer side of the rotating cleaning seat. A cable guide hole is provided in the middle of the flushing ring seat. The flushing ring seat is provided in correspondence with the cleaning outlet, and the flushing direction of the flushing ring seat is opposite to the movement direction of the cable in the cable guide hole.

[0012] Furthermore, the rotating cleaning seat has a frustum-shaped profile, the axis of the cable guide hole is set along the central axis of the frustum-shaped profile, the cleaning inlet is a tapered flared opening, and the opening direction of the tapered flared opening is opposite to the cleaning outlet.

[0013] Furthermore, the fixed cover has a conical annular shape, and the fixed cover is coaxially arranged with the rotating cleaning seat. The taper of the fixed cover is smaller than that of the rotating cleaning seat. The annular interval gradually decreases in the opposite direction of the cable movement. The fixed cover has a first opening corresponding to the cleaning inlet and a second opening corresponding to the cleaning outlet.

[0014] Furthermore, the cable guide hole is provided with a plurality of inner guide plates circumferentially spaced on the hole wall. The inner guide plates are used to cooperate with the surface of the cable at intervals, and the inner guide plates are pushed and cooperated with the cleaning ball when the cable is being cleaned.

[0015] The outer wall of the rotating cleaning seat is provided with multiple outer guide plates spaced apart circumferentially. The outer guide plates are fitted with the fixed cover with a clearance, and the outer guide plates are pushed and fitted with the cleaning ball in the self-cleaning state.

[0016] Furthermore, four cable guide rollers are provided, including a first guide roller, a second guide roller, a third guide roller, and a fourth guide roller. The second guide roller and the third guide roller are respectively located at the lower part of the cleaning chamber, the first guide roller is located on the upper side of the second guide roller, and the fourth guide roller is located on the upper side of the third guide roller.

[0017] The cable guide path is formed by sequentially connecting the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller, and the cable guide through hole is located between the third guide roller and the fourth guide roller.

[0018] Furthermore, a detection box is installed on the outside of the main housing, a float is floatingly installed in the detection box, a conductive tube is connected between the detection box and the fixed cover, and a first limit switch and a second limit switch are provided inside the detection box, with the first limit switch and the second limit switch arranged vertically at intervals.

[0019] The first limit switch and the second limit switch are respectively in sensing cooperation with the float block, and the drive mechanism is electrically connected to the first limit switch and the second limit switch respectively. When the float block moves up to the first limit switch, the drive mechanism is controlled to start, and when the float block moves down to the second limit switch, the drive mechanism is controlled to stop.

[0020] Furthermore, the density of the cleaning ball is less than the density of the cleaning medium, and the cleaning ball includes a foam ball and a sponge sleeve wrapped around the foam ball.

[0021] Furthermore, the cleaning inlet is located at the lower end of the rotating cleaning seat, the cleaning outlet is located at the lower end of the rotating cleaning seat, the flushing ring seat is spaced apart above the cleaning outlet, the flushing ring seat is connected to a water inlet pipe, the lower part of the main body is also provided with a drain outlet, and a drain valve is installed at the drain outlet.

[0022] The technical solution of the cleaning method of the surface cleaning device for overhead cables of the present invention is as follows:

[0023] The cleaning method based on the above-mentioned surface cleaning device for overhead cables includes the following steps:

[0024] S1. The overhead cable is guided into the cleaning chamber of the main housing by the cable guide roller;

[0025] S2. The overhead cable moves along the cable guide path, and the overhead cable enters through the cleaning inlet and exits through the cleaning outlet; the driving mechanism drives the rotating cleaning seat to rotate, so that the cleaning ball enters the cable guide through hole through the cleaning inlet and cleans the surface of the overhead cable.

[0026] S3. After the cleaning ball cleans the overhead cable, the cleaning ball enters the annular interval through the cleaning outlet and performs self-cleaning.

[0027] S4. After the cleaning ball completes self-cleaning, it enters the cable guide hole from the cleaning inlet to achieve repeated cleaning.

[0028] This invention discloses a surface cleaning device and method for overhead cables, which offers advantages over existing technologies. The device comprises a main housing, cable guide rollers, a fixed cover, a rotating cleaning seat, a drive mechanism, and multiple cleaning balls. The main housing contains a cleaning chamber, in which the cable guide rollers are installed and form a cable guide path. Cables enter the cleaning chamber along this path, change direction after passing through the cable guide rollers, and then exit the chamber. The cleaning chamber contains a cleaning medium, which effectively washes away dirt from the cable surface.

[0029] Since the fixed cover is set in the cleaning chamber, the rotating cleaning seat is rotatably installed inside the fixed cover. The drive mechanism is connected to the rotating cleaning seat. The axis of the cable guide hole of the rotating cleaning seat extends along the cable guide path, that is, the cable can pass through the cable guide hole and pass through the rotating cleaning seat. The cable moves along the axis of the cable guide hole, while the rotating cleaning seat rotates circumferentially around the cable guide hole. The combination of the two motion forms makes the rotating cleaning seat move in a spiral relative to the cable.

[0030] Furthermore, the fixed cover is equipped with multiple cleaning balls. One end of the rotating cleaning seat has a cleaning inlet, and the other end has a cleaning outlet. The cable enters the cable guide hole through the cleaning inlet and exits through the cleaning outlet. The multiple cleaning balls can enter the cable guide hole along with the cable and undergo rolling friction between the cable and the rotating cleaning seat. The cleaning balls not only experience axial rolling friction with the cable but also undergo circumferential movement under the drive of the rotating cleaning seat, which improves the freedom of movement of the cleaning balls and ensures that the cleaning balls can fully contact the cable surface for better cleaning results.

[0031] In addition, an annular gap is provided between the inner wall of the rotating cleaning seat and the fixed cover. The cleaning balls clean the surface of the cable in the cable guide hole, and then the cleaning balls are discharged from the cleaning outlet along with the cable and enter the annular gap. The fixed cover remains stationary, and under the rotation of the rotating cleaning seat, the cleaning balls roll and contact the outer wall of the rotating cleaning seat and the inner wall of the fixed cover respectively, producing a rolling and squeezing effect, thereby separating the dirt adhering to the cleaning balls. The cleaning balls achieve self-cleaning in the annular gap. After self-cleaning, the cleaning balls can re-enter the cable guide hole from the cleaning inlet to continue cleaning subsequent cables, ensuring continuous cleaning effect on the cables, avoiding interruption of the cleaning work due to frequent replacement of sponge blocks, and improving the surface cleaning efficiency of the cables. Attached Figure Description

[0032] Figure 1 This is a perspective view of the surface cleaning device in a specific embodiment of the surface cleaning device for overhead cables of the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the surface cleaning device in a specific embodiment of the surface cleaning device for overhead cables of the present invention.

[0034] Figure 3 This is a partial sectional view of the internal structure of the surface cleaning device in a specific embodiment of the surface cleaning device for overhead cables of the present invention.

[0035] Figure 4 This is a cross-sectional schematic diagram of the surface cleaning device in a specific embodiment of the surface cleaning device for overhead cables of the present invention;

[0036] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0037] Figure 6 This is a three-dimensional schematic diagram of a rotating cleaning seat in a specific embodiment of the surface cleaning device for overhead cables of the present invention;

[0038] Figure 7 This is a top view of a rotating cleaning seat in a specific embodiment of the surface cleaning device for overhead cables of the present invention.

[0039] In the diagram: 1-Main housing, 10-Cleaning chamber, 11-Cable guide path, 12-Cable, 13-Support baffle, 2-Cable guide roller, 21-First guide roller, 22-Second guide roller, 23-Third guide roller, 24-Fourth guide roller, 3-Fixed cover, 30-Annular interval, 4-Rotating cleaning seat, 40-Cable guide hole, 41-Cleaning inlet, 42-Cleaning outlet, 43-Inner guide plate, 44-Outer guide plate, 5-Drive mechanism, 50-Driven gear ring, 51-Connecting rod, 6-Cleaning ball, 7-Flushing ring seat, 70-Cable guide hole, 71-Water inlet pipe, 72-Drain valve, 8-Detection box, 80-Float block, 81-First limit switch, 82-Second limit switch, 83-Conducting pipe, 84-L-shaped component. Detailed Implementation

[0040] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0041] This embodiment provides a surface cleaning device for overhead cables, such as... Figures 1 to 7As shown, the surface cleaning device for overhead cables includes a main housing 1, a cable guide roller 2, a fixed cover 3, a rotating cleaning seat 4, and a drive mechanism 5. The main housing 1 has a cleaning chamber 10 inside, and the cable guide roller 2 is installed in the cleaning chamber 10 to form a cable guide path 11. The fixed cover 3 is set in the cleaning chamber 10, and the rotating cleaning seat 4 is rotatably installed inside the fixed cover 3. The center of the rotating cleaning seat 4 has a cable guide through hole 40, and the axis of the cable guide through hole 40 extends along the cable guide path 11. The drive mechanism 5 is connected to the rotating cleaning seat 4 to drive the rotating cleaning seat 4 to rotate circumferentially around the cable guide through hole 40.

[0042] The fixed cover 3 is also provided with a plurality of cleaning balls 6. One end of the rotating cleaning seat 4 is provided with a cleaning inlet 41 and the other end of the rotating cleaning seat 4 is provided with a cleaning outlet 42, so that the cable 12 can move from the cleaning inlet 41 to the cleaning outlet 42. The cleaning balls 6 are used to enter the cable guide hole 40 through the cleaning inlet 41 and make frictional contact with the cable 12. An annular gap 30 is provided between the rotating cleaning seat 4 and the inner wall of the fixed cover 3. The cleaning balls 6 are also used to enter the annular gap 30 through the cleaning outlet 42 and make the cleaning balls 6 self-cleaning.

[0043] The surface cleaning device for overhead cables adopts a design consisting of a main housing 1, cable guide rollers 2, a fixed cover 3, a rotating cleaning seat 4, a drive mechanism 5, and multiple cleaning balls 6. The main housing 1 has a cleaning chamber 10 inside, and the cable guide rollers 2 are installed in the cleaning chamber 10 to form a cable guide path 11. The cable 12 enters the cleaning chamber 10 along the cable guide path 11, changes direction after passing through the cable guide rollers 2, and then exits from the cleaning chamber 10. The cleaning chamber 10 contains a cleaning medium, which can wash away the dirt on the surface of the cable 12.

[0044] Since the fixed cover 3 is set in the cleaning chamber 10, the rotating cleaning seat 4 is rotatably installed inside the fixed cover 3. The drive mechanism 5 is connected to the rotating cleaning seat 4 in a transmission manner. The axis of the cable guide hole 40 of the rotating cleaning seat 4 extends along the cable guide path 11, that is, the cable 12 can pass through the cable guide hole 40 and pass through the rotating cleaning seat 4. The moving direction of the cable 12 is along the axis of the cable guide hole 40, while the rotating cleaning seat 4 rotates circumferentially around the cable guide hole 40. The combination of the two motion forms makes the rotating cleaning seat 4 move in a spiral relative to the cable 12.

[0045] Furthermore, the fixed cover 3 is equipped with multiple cleaning balls 6. One end of the rotating cleaning seat 4 has a cleaning inlet 41, and the other end has a cleaning outlet 42. The cable 12 enters the cable guide hole 40 through the cleaning inlet 41 and exits through the cleaning outlet 42. The multiple cleaning balls 6 can enter the cable guide hole 40 along with the cable 12 and roll and rub against the cable 12 and the rotating cleaning seat 4. The cleaning balls 6 not only roll and rub against the cable 12 axially, but also move circumferentially under the drive of the rotating cleaning seat 4, which improves the freedom of movement of the cleaning balls 6 and ensures that the cleaning balls 6 can fully contact the surface of the cable to achieve a better cleaning effect.

[0046] In addition, an annular gap 30 is provided between the inner wall of the rotating cleaning seat 4 and the fixed cover 3. The cleaning ball 6 cleans the surface of the cable 12 in the cable guide hole 40. Then, the cleaning ball 6 is discharged from the cleaning outlet 42 along with the cable 12 and enters the annular gap 30. The fixed cover 3 remains stationary, and under the rotation of the rotating cleaning seat 4, the cleaning ball 6 rolls and contacts the outer wall of the rotating cleaning seat 4 and the inner wall of the fixed cover 3 respectively, producing a rolling and squeezing effect, thereby separating the dirt adhering to the cleaning ball 6. The cleaning ball 6 achieves self-cleaning in the annular gap 30. After self-cleaning, the cleaning ball 6 can re-enter the cable guide hole 40 from the cleaning inlet 41, and then continue to clean the subsequent cables 12, ensuring the continuous cleaning effect of the cables 12, avoiding interruption of the cleaning work due to frequent replacement of sponge blocks, and improving the surface cleaning efficiency of the cables 12.

[0047] In this embodiment, a flushing ring seat 7 is also installed on the outer side of the rotating cleaning seat 4. A cable guide hole 70 is provided in the middle of the flushing ring seat 7. The flushing ring seat 7 is correspondingly arranged with the cleaning outlet 42, and the flushing direction of the flushing ring seat 7 is opposite to the movement direction of the cable 12 in the cable guide hole 40. Specifically, the cleaning inlet 41 is located at the lower end of the rotating cleaning seat 4, the cleaning outlet 42 is located at the lower end of the rotating cleaning seat 4, and the flushing ring seat 7 is spaced apart above the cleaning outlet 42. The flushing ring seat 7 is connected to a water inlet pipe 71. The flushing ring seat 7 is an annular hollow cylinder with a spray nozzle at its bottom. The cleaning medium is transported to the flushing ring seat 7 through the water inlet pipe 71. The cleaning medium sprayed from the flushing ring seat 7 is distributed around the outer periphery of the cable 12, ensuring that the cable 12 is simultaneously subjected to the friction cleaning of the cleaning ball 6 and the fluid flushing effect of the flushing ring seat 7. Preferably, the drive mechanism 5 is a motor, and the output shaft of the motor is equipped with a drive gear to prevent rotation. A driven gear ring 50 is fixedly connected to the upper side of the rotating cleaning seat 4, and the rotating cleaning seat 4 and the driven gear ring 50 are connected by a connecting rod 51. The drive gear meshes with the driven gear ring 50, so as to achieve the purpose of driving the rotating cleaning seat 4 to rotate without interfering with the rinsing effect of the flushing ring seat 7.

[0048] The flushing direction of the flushing ring seat 7 is opposite to the movement direction of the cable 12 in the cable guide hole 40. That is, when the cleaning ball 6 moves upward in the cable guide hole 40, it is also impacted by the downward water flow, which increases the upward resistance of the cleaning ball 6 and prolongs the surface cleaning time of the cleaning ball 6 on the cable 12, avoiding blockage caused by the rapid upward movement of the cleaning ball 6. In addition, a drain outlet is provided at the bottom of the main housing 1, and a drain valve 72 is installed at the drain outlet. Since the water storage capacity of the cleaning chamber 10 is limited, the cleaning medium in the cleaning chamber 10 needs to be discharged. The cleaning medium in the cleaning chamber 10 can be discharged using the drain outlet, and the opening of the drain valve 72 is adjustable, which can flexibly adjust the discharge rate of the cleaning medium to ensure that an appropriate amount of cleaning medium is always flowing and stored in the cleaning chamber 10.

[0049] The rotating cleaning seat 4 has a frustum-shaped profile. The axis of the cable guide hole 40 is set along the central axis of the frustum shape. The cleaning inlet 41 is a conical flared opening, with its opening direction facing away from the cleaning outlet 42. The cleaning inlet 41 is designed as a conical flared opening. When the cleaning ball 6 is located on the lower side of the rotating cleaning seat 4 and floats with the water level, the conical flared opening acts as a guide, allowing the cleaning ball 6 to automatically gather in the cleaning inlet 41. When the cable 12 moves upward, the cable 12 generates an upward frictional force on the cleaning ball 6, causing the cleaning ball 6 at the cleaning inlet 41 to move upward, ensuring that the cleaning ball 6 smoothly enters the cable guide hole 40 of the rotating cleaning seat 4.

[0050] The fixed cover 3 has a conical annular shape and is coaxially arranged with the rotating cleaning seat 4. The taper of the fixed cover 3 is smaller than that of the rotating cleaning seat 4. The annular interval 30 gradually decreases in the opposite direction of the movement of the cable 12. The fixed cover 3 has a first opening corresponding to the cleaning inlet 41 and a second opening corresponding to the cleaning outlet 42. Furthermore, a support baffle 13 is provided at the lower part of the cleaning chamber 10. The support baffle 13 includes a horizontal support section and a side support section. The horizontal support section is fixed parallel to the upper side of the bottom plate of the main housing 1, and one side of the side support section is hinged to the bottom plate of the main housing 1. The side support section can be detached from the main housing 1. One of the cable guide rollers 2 is located inside the support baffle 13. The fixed cover 3 is fixed to the horizontal support section. The support baffle 13 has a receiving hole that mates with the first opening. The fixed cover 3 is installed in the receiving hole of the support baffle 13. The wall thickness of the fixed cover 3 is any size between 20mm and 60mm.

[0051] The taper of the fixed cover 3 is smaller than that of the rotating cleaning seat 4. The annular interval 30 gradually decreases in the opposite direction of the movement of the cable 12. The top spacing of the annular interval 30 is greater than the maximum diameter of the cleaning ball 6, ensuring that the cleaning ball 6 can smoothly enter the annular interval 30. The bottom spacing of the annular interval 30 is equal to the diameter of the foam ball of the cleaning ball 6, that is, the bottom spacing is less than the maximum diameter of the cleaning ball 6. This prevents the cleaning ball 6 located on the lower side of the rotating cleaning seat 4 from entering the annular interval 30 from the bottom, ensuring that the cleaning ball 6 is effectively rolled and squeezed when the annular interval 30 moves downward.

[0052] As a further preferred embodiment, the cable guide hole 40 is circumferentially provided with multiple inner guide plates 43. The inner guide plates 43 are used to engage with the surface of the cable 12 at intervals, and the inner guide plates 43 also engage with the cleaning ball 6 in the cable cleaning state through pushing. The inner guide plates 43 limit the cleaning ball 6 to move only vertically along the rotating cleaning seat 4, and push the cleaning ball 6 to rotate through the inner guide plates 43. The cleaning ball 6 continuously rubs against the outer surface of the cable 12, thereby effectively cleaning the outer surface of the cable 12 through friction.

[0053] Multiple outer guide plates 44 are spaced circumferentially on the outer wall of the rotating cleaning seat 4. The outer guide plates 44 are clearance-fitted with the fixed cover 3 and push against the cleaning balls 6 in their self-cleaning state. When the cleaning balls 6 enter the top of the annular interval 30 from the cleaning outlet 42, the rotation of the rotating cleaning seat 4 and the outer guide plates 44 not only drives the cleaning balls 6 downwards on the rotating cleaning seat 4 but also exerts a squeezing and frictional effect on the cleaning balls 6, causing the dirt on the surface of the cleaning balls 6 to separate quickly. It should be noted that the density of the cleaning balls 6 is less than the density of the cleaning medium. The cleaning balls 6 consist of foam balls and a sponge sleeve surrounding the foam balls. At the bottom of the annular interval 30, the rotating cleaning seat 4 and the fixed cover 3 completely squeeze the sponge sleeve of the cleaning balls 6, causing the dirt attached to the sponge sleeve to separate without damaging the foam balls inside the cleaning balls 6.

[0054] In this embodiment, four cable guide rollers 2 are provided, including a first guide roller 21, a second guide roller 22, a third guide roller 23, and a fourth guide roller 24. The second guide roller 22 and the third guide roller 23 are respectively located at the lower part of the cleaning chamber 10, the first guide roller 21 is located above the second guide roller 22, and the fourth guide roller 24 is located above the third guide roller 23. The cable guide path is formed by connecting the first guide roller 21, the second guide roller 22, the third guide roller 23, and the fourth guide roller 24 in sequence, and the cable guide through hole 40 is located between the third guide roller 23 and the fourth guide roller 24, thereby forming a U-shaped path from right to left.

[0055] In addition, if the stains attached to the cleaning ball 6 are not removed in the annular interval 30, the cleaning ball 6 cannot move normally to the cleaning inlet 41 of the rotating cleaning seat 4. After continuous accumulation, a large number of cleaning balls 6 gather in the annular interval 30. There is a lack of corresponding cleaning balls 6 in the cable guide hole 40 to clean the surface of the cable 12, that is, the cleaning device is not working properly. In order to prevent this situation from occurring, a detection box 8 and a guide tube 93 are further designed.

[0056] A detection box 8 is also installed on the outside of the main housing 1. A float 80 is floating in the detection box 8. A conductive tube 83 connects the detection box 8 and the fixed cover 3. A first limit switch 81 and a second limit switch 82 are installed inside the detection box 8, and the first limit switch 81 and the second limit switch 82 are arranged vertically at intervals. The first limit switch 81 and the second limit switch 82 are respectively inductively engaged with the float 80. The drive mechanism 5 is electrically connected to the first limit switch 81 and the second limit switch 82 respectively. When the float 80 moves up to the first limit switch 81, the drive mechanism 5 is started. When the float 80 moves down to the second limit switch 82, the drive mechanism 5 is stopped.

[0057] The guide pipe 83 passes through the wall of the main housing 1 and connects between the fixed cover 3 and the detection box 8. In use, the cleaning medium is input downward through the water inlet pipe 71 and the flushing ring seat 7. The drain valve 72 is closed, and the water level in the cleaning chamber 10 rises continuously. When the water level rises to the height of the guide pipe 83, the cleaning medium enters the detection box 8 through the guide pipe 83 and causes the float 80 in the detection box 8 to float up synchronously. The float 80 is provided with an L-shaped part 84. The L-shaped part 84 is triggered by the first limit switch 81, thereby causing the drive mechanism 5 to start driving the rotating cleaning seat 4 to perform the above-mentioned cleaning work.

[0058] As the cleaning ball 6 moves upward in the cable guide hole 40, it diverts the downward-impacting cleaning medium, causing some of the cleaning medium to flow into the annular interval 30. This ensures that the water level in the annular interval 30 of the fixed cover 3 is always maintained at a certain height, thus ensuring that the float 80 in the detection box 8 is at the height that triggers the first limit switch 81. If the cleaning ball 6 is missing from the cable guide hole 40, the cleaning medium output from the flushing ring seat 7 will flow directly downward. Due to the lack of diversion and replenishment of the cleaning medium, the water level in the annular interval 30 will decrease. When it is lower than the height of the guide pipe 83, the float 80 will descend and trigger the second limit switch 82 through the L-shaped piece 84, thereby stopping the drive mechanism 5 from driving the rotating cleaning seat 4 to perform the above-mentioned cleaning work. The operator can clearly observe that the drive mechanism 5 has stopped working, and thus knows that the outer surface of the cable 12 has not been properly cleaned.

[0059] The cleaning method based on the above-mentioned surface cleaning device for overhead cables includes the following steps:

[0060] S1. The overhead cable is guided into the cleaning chamber 10 of the main housing 1 by the cable guide roller;

[0061] S2. The overhead cable moves along the cable guide path 11 and enters through the cleaning inlet 41 and exits through the cleaning outlet 42. The drive mechanism 5 drives the rotating cleaning seat 4 to rotate, so that the cleaning ball 6 enters the cable guide through hole 40 through the cleaning inlet 41 and cleans the surface of the overhead cable.

[0062] S3. After cleaning the overhead cables, the cleaning ball 6 enters the annular interval 30 through the cleaning outlet 42 and performs self-cleaning.

[0063] S4. After the cleaning ball 6 completes self-cleaning, it enters the cable guide hole 40 through the cleaning inlet 41 to achieve repeated cleaning.

[0064] The specific embodiments of the cleaning method of the surface cleaning device for overhead cables of the present invention are the same as the specific embodiments of the cleaning method of the surface cleaning device for overhead cables of the present invention, and will not be repeated here.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A surface cleaning device for overhead cables, characterized in that, It includes a main housing (1), a cable guide roller (2), a fixed cover (3), a rotating cleaning seat (4), and a drive mechanism (5). The main housing (1) has a cleaning chamber (10) inside, and the cable guide roller (2) is installed in the cleaning chamber (10) to form a cable guide path (11). The fixed cover (3) is disposed in the cleaning chamber (10), and the rotating cleaning seat (4) is rotatably installed inside the fixed cover (3). The rotating cleaning seat (4) has a cable guide hole (40) in the middle. The axis of the cable guide hole (40) extends along the cable guide path (11). The driving mechanism (5) is connected to the rotating cleaning seat (4) to drive the rotating cleaning seat (4) to rotate around the cable guide hole (40). The fixed cover (3) is also provided with a plurality of cleaning balls (6), one end of the rotating cleaning seat (4) is provided with a cleaning inlet (41), and the other end of the rotating cleaning seat (4) is provided with a cleaning outlet (42) so that the cable (12) can move from the cleaning inlet (41) to the cleaning outlet (42). The cleaning ball (6) is used to enter the cable guide hole (40) through the cleaning inlet (41) and rub against the cable (12); an annular gap (30) is provided between the rotating cleaning seat (4) and the inner wall of the fixed cover (3), and the cleaning ball (6) is also used to enter the annular gap (30) through the cleaning outlet (42). A flushing ring seat (7) is also installed on the outside of the rotating cleaning seat (4). A cable guide hole (70) is provided in the middle of the flushing ring seat (7). The flushing ring seat (7) is corresponding to the cleaning outlet (42), and the flushing direction of the flushing ring seat (7) is opposite to the moving direction of the cable (12) in the cable guide hole (40). The cable guide hole (40) is provided with a plurality of inner guide plates (43) spaced apart around the hole wall. The inner guide plates (43) are used to cooperate with the surface of the cable (12) at intervals, and the inner guide plates (43) are pushed and cooperated with the cleaning ball (6) of the cable (12) in the cleaning state. The outer wall of the rotating cleaning seat (4) is provided with a plurality of outer guide plates (44) spaced apart. The outer guide plates (44) are in clearance fit with the fixed cover (3), and the outer guide plates (44) are in push fit with the cleaning ball (6) in self-cleaning state.

2. The surface cleaning device for overhead cables according to claim 1, characterized in that, The rotating cleaning seat (4) has a frustum-shaped profile. The axis of the cable guide hole (40) is set along the central axis of the frustum shape. The cleaning inlet (41) is a tapered flared opening, and the opening direction of the tapered flared opening is opposite to the cleaning outlet (42).

3. The surface cleaning device for overhead cables according to claim 1, characterized in that, The fixed cover (3) has a conical ring shape. The fixed cover (3) is coaxially arranged with the rotating cleaning seat (4). The taper of the fixed cover (3) is smaller than that of the rotating cleaning seat (4). The annular interval (30) gradually decreases in the opposite direction of the movement of the cable (12). The fixed cover (3) has a first opening corresponding to the cleaning inlet (41) and a second opening corresponding to the cleaning outlet (42).

4. The surface cleaning device for overhead cables according to claim 1, characterized in that, The cable guide rollers (2) are provided in four parts, including a first guide roller (21), a second guide roller (22), a third guide roller (23) and a fourth guide roller (24). The second guide roller (22) and the third guide roller (23) are respectively located at the lower part of the cleaning chamber (10). The first guide roller (21) is located on the upper side of the second guide roller (22), and the fourth guide roller (24) is located on the upper side of the third guide roller (23). The cable guide path (11) is formed by sequentially connecting the first guide roller (21), the second guide roller (22), the third guide roller (23) and the fourth guide roller (24), and the cable guide through hole (40) is located between the third guide roller (23) and the fourth guide roller (24).

5. The surface cleaning device for overhead cables according to claim 1, characterized in that, A detection box (8) is also installed on the outside of the main housing (1). A float (80) is floatingly installed in the detection box (8). A conductive tube (83) is connected between the detection box (8) and the fixed cover (3). A first limit switch (81) and a second limit switch (82) are provided inside the detection box (8). The first limit switch (81) and the second limit switch (82) are arranged vertically at intervals. The first limit switch (81) and the second limit switch (82) are respectively inductively coupled with the float (80), and the drive mechanism (5) is electrically connected to the first limit switch (81) and the second limit switch (82) respectively. When the float (80) moves up to the first limit switch (81), the drive mechanism (5) is controlled to start. When the float (80) moves down to the second limit switch (82), the drive mechanism (5) is controlled to stop.

6. The surface cleaning device for overhead cables according to claim 1, characterized in that, The density of the cleaning ball (6) is less than the density of the cleaning medium. The cleaning ball (6) includes a foam ball and a sponge sleeve wrapped around the foam ball.

7. The surface cleaning device for overhead cables according to claim 1, characterized in that, The cleaning inlet (41) is located at the lower end of the rotating cleaning seat (4), the cleaning outlet (42) is located at the lower end of the rotating cleaning seat (4), the flushing ring seat (7) is spaced above the cleaning outlet (42), the flushing ring seat (7) is connected to the water inlet pipe (71), the lower part of the main box (1) is also provided with a drain outlet, and a drain valve (72) is installed at the drain outlet.

8. A cleaning method based on the surface cleaning device for overhead cables according to claim 1, characterized in that, Includes the following steps: S1. The overhead cable is guided into the cleaning chamber (10) of the main housing (1) by the cable guide roller; S2. The overhead cable moves along the cable guide path (11) and enters through the cleaning inlet (41) and exits through the cleaning outlet (42); the driving mechanism (5) drives the rotating cleaning seat (4) to rotate, so that the cleaning ball (6) enters the cable guide hole (40) through the cleaning inlet (41) and cleans the surface of the overhead cable; S3. After the cleaning ball (6) cleans the overhead cable, the cleaning ball (6) enters the annular interval (30) through the cleaning outlet (42) and the cleaning ball (6) performs self-cleaning. S4. After the cleaning ball (6) completes self-cleaning, it enters the cable guide hole (40) from the cleaning inlet (41) to achieve repeated cleaning.

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