Rail type lifting device for box

Abstract

The invention provides a lifting device for a rail type box, and relates to the technical field of rail type cranes. The lifting device for the rail type box comprises a frame, a support, a sliding device, sliding rails, cleaning mechanisms and a second cleaning mechanism, the support is fixedly connected to the bottom end of the frame, the sliding device is arranged in the middle of the frame, the sliding rails are arranged at the top end of the frame on the two sides of the sliding device, the sliding rails are fixedly connected with the frame, and the cleaning mechanisms are rotationally connected to the two sides of the sliding device. Second cleaning mechanisms are fixedly connected to the two sides of the sliding rails, and the situation that excessive dust is accumulated on the surfaces of the sliding rails after severe weather, normal sliding of the sliding devices on the sliding rails is affected, and consequently the carrying efficiency of containers is affected is prevented through the first cleaning mechanisms. The problem that after severe weather, a large amount of dust is accumulated on a sliding rail of a rail-mounted crane, and the carrying efficiency of containers is affected is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail-mounted cranes, in particular to a rail-mounted container lifting device. BACKGROUND

[0002] The rail-mounted crane refers to the running type slewing crane which is driven along the track laid on the ground and needs to be disassembled and reinstalled when the working site is transferred.

[0003] The rail-mounted crane is generally arranged at the port, but due to the poor port environment, a large amount of dust is easily accumulated on the slide rail of the rail-mounted crane after bad weather, so that the dust on the slide rail of the rail-mounted crane affects the normal movement of the container driven by the rail-mounted crane, thereby affecting the container handling efficiency. SUMMARY

[0004] (I) Technical problems solved In view of the deficiencies of the prior art, the present application provides a rail-mounted container lifting device, which solves the problem of the accumulation of a large amount of dust on the slide rail of the rail-mounted crane after bad weather affecting the container handling efficiency.

[0005] (II) Technical solutions In order to achieve the above purpose, the present application is realized by the following technical solutions: a rail-mounted container lifting device, comprising a frame, a support, a sliding device, a slide rail, a cleaning mechanism, a second cleaning mechanism, the frame bottom end is fixedly connected with the support, the frame middle part is provided with the sliding device, the sliding device both sides frame top end is provided with the slide rail, the slide rail and the frame are fixedly connected, the sliding device both sides rotationally connected with the cleaning mechanism, the slide rail both sides are fixedly connected with the second cleaning mechanism.

[0006] Preferably, the sliding device both sides are fixedly connected with the pulley, the sliding device bottom end is fixedly connected with the carrying device, the cleaning mechanism and the pulley are rotationally connected, the sliding device left and right sides close to the bottom end are provided with the strip-shaped recess, the slide rail both sides are uniformly provided with the semicircular opening.

[0007] Preferably, the cleaning mechanism comprises a connecting piece rotationally connected on the sliding device both sides, the connecting piece far away from the pulley one end is fixedly connected with the water supply device, the water supply device right side is fixedly connected with the sliding plate, the sliding plate bottom end is uniformly slidably connected with the connecting block, the water supply device right side bottom end is fixedly connected with the connecting water tank, the connecting water tank and the connecting block between the rightmost side of the sliding plate bottom end are fixedly connected, the connecting block between is fixedly connected with the limiting spring, the connecting block both sides are fixedly connected with the magnetic ball rod, 505 is fixed through the magnetic ball rod, preventing 505 from being separated from the slide rail, the connecting block inner side is provided with the telescopic water guide pipe, the telescopic water guide pipe passes through the connecting block and is fixedly connected between the connecting blocks, the water supply device and the connecting water tank are fixedly connected through the pipe.

[0008] Preferably, the cleaning mechanism further comprises a limiting elastic bag fixedly connected to the bottom end of the connecting block, the bottom end of the limiting elastic bag located on both sides below the connecting block is fixedly connected with a cleaning block, the bottom end of the limiting elastic bag located in the middle below the connecting block is fixedly connected with an arc-shaped cleaning block, the bottom end of the cleaning block is fixedly connected with an arc-shaped water nozzle, the bottom end of the arc-shaped cleaning block is fixedly connected with a water nozzle, the bottom end of the arc-shaped cleaning block and the cleaning block is fixedly connected with an elastic connecting plate, the outer side of the elastic connecting plate is uniformly fixedly connected with a cleaning brush, the inside of the connecting block is uniformly provided with a connecting water guide, and the bottom end of the elastic connecting plate is fixedly connected between the connecting block and the top end of the limiting elastic bag.

[0009] Preferably, the telescopic water guide pipe is fixedly connected between the connecting block and the connecting water guide, the bottom end of the arc-shaped water nozzle and the water nozzle is placed below the elastic connecting plate through the elastic connecting plate, the automatic pressure sensing valve is arranged between the intersection of the arc-shaped water nozzle and the water nozzle and the cleaning block and the arc-shaped cleaning block, and the bottom end of the arc-shaped water nozzle is inclined away from the arc-shaped cleaning block, so that the water flow can conveniently carry dust out through the semicircular opening when being sprayed.

[0010] Preferably, the second cleaning mechanism comprises a compression bag fixedly connected to both sides of the sliding rail, a semicircular magnetic ring is slidably connected in the compression bag, the semicircular magnetic ring is fixedly connected between the sliding rail, the semicircular magnetic ring and the sliding rail are uniformly provided with an arc-shaped cleaning plate in the semicircular opening, one end of the arc-shaped cleaning plate away from the sliding rail is fixedly connected with a connecting disc, the other end of the connecting disc is fixedly connected with a moving rod, the moving rod is fixedly connected with a fixing frame, and the fixing frame and the moving rod are fixedly connected with a connecting spring away from the sliding rail.

[0011] Preferably, the connecting spring is fixedly connected between the inside of the compression bag away from the sliding rail and one end, the magnetic poles of the semicircular magnetic ring and the arc-shaped cleaning plate are opposite, the area of the connecting disc is smaller than the area of the semicircular opening, and one end of the arc-shaped cleaning plate away from the connecting disc is outwardly tilted, so that the 603 can be tightly attached to the inner wall of the semicircular opening and the semicircular magnetic ring to scrape and enhance the cleaning effect on the inner wall of the semicircular opening and the semicircular magnetic ring.

[0012] Preferably, the second cleaning mechanism further comprises a second cleaning block arranged on both sides of the sliding rail, the bottom end of the second cleaning block located on the side away from the sliding device of the sliding rail is fixedly connected between the frame, the second cleaning block located on the side close to the sliding device of the sliding rail is fixedly connected with the strip-shaped groove, a rectangular opening is arranged close to the bottom end, a second rectangular opening is arranged in the middle of the rectangular opening, an arc-shaped protrusion is fixedly connected to the right side of the second rectangular opening, a magnetic strip is fixedly connected to the part of the rectangular opening located at the top end and the bottom end of the second rectangular opening, the top end of the second cleaning block located on the side away from the sliding device of the sliding rail is rotatably connected with the pulley, and the magnetic poles of the end of the compression bag away from the sliding rail and the magnetic strip are the same.

[0013] (Three) beneficial effects (1) The present application, by setting the connecting block in the cleaning mechanism, limit spring, magnetic ball rod, limit elastic bag, cleaning block, arc cleaning block, cleaning brush, under the action of water flow makes the cleaning brush can be attached to the surface of the slide rail surface cleaning, prevent the slide rail surface after bad weather accumulated too much dust, affect the normal sliding of the sliding device on the slide rail and thus affect the handling efficiency of the container.

[0014] (2) The present application, by setting the limit spring in the cleaning mechanism, connecting water guide, limit elastic bag, cleaning block, arc cleaning block, cleaning brush, arc water nozzle, water nozzle, under the action of mutual attraction between the current makes the pressure in the limit elastic bag increases, so that the cleaning brush can be attached to the surface of the slide rail surface cleaning improve the cleaning effect of the slide rail, and can increase the friction frequency between the cleaning brush and the slide rail, at the same time can clean the dust cleaned on the slide rail, prevent the dust in the slide rail accumulated affect the normal movement of the sliding device.

[0015] (3) The present application, by setting the compression bag in the second cleaning mechanism, semicircular magnetic ring, arc cleaning plate, connecting disc, moving rod, fixed frame, connecting spring, under the action of magnetic and inertia makes the arc cleaning plate can be attached to the semicircular opening and semicircular magnetic ring inner wall of semicircular opening and semicircular magnetic ring inner wall cleaning, prevent dust in the semicircular opening and semicircular magnetic ring accumulated affect the dust cleaned in the slide rail discharge.

[0016] (4) The present application, by setting the compression bag in the second cleaning mechanism, magnetic strip, arc cleaning plate, moving rod, connecting spring, under the action of magnetism makes the compression bag can quickly reset driven by the connecting spring elongation from the semicircular opening and semicircular magnetic ring arc cleaning plate, further enhance the cleaning effect of semicircular opening and semicircular magnetic ring inner wall, at the same time when the semicircular magnetic ring is not connected to the current, the arc cleaning plate is in horizontal state will not block the semicircular opening and semicircular magnetic ring so as not to affect the dust in the slide rail with the water flow discharge. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structure diagram of the present application; Figure 2 is the structure diagram of the sliding device of the present application; Figure 3 is the side view of the present application; Figure 4 is the structure diagram of the cleaning mechanism of the present application; Figure 5 is the structure diagram of the present application Figure 3 is the structure diagram of the present application Figure 6 is the side view of the present application; Figure 7For the present invention Figure 3 Enlarged view of the structure at point B in the middle; Figure 8 This is a schematic diagram of the second cleaning mechanism of the present invention; Figure 9 This is a schematic diagram of the arc-shaped protrusion structure of the present invention.

[0018] The components include: frame 1, support 2, sliding device 3, pulley 301, handling device 302, slide rail 4, cleaning mechanism 5, connector 501, water supply device 502, sliding plate 503, connecting water tank 504, connecting block 505, limiting spring 506, magnetic ball rod 507, limiting elastic bladder 508, cleaning block 509, arc-shaped cleaning block 510, cleaning brush 511, arc-shaped spray nozzle 512, spray nozzle 513, connecting water guide 514, elastic connecting plate 515, second cleaning mechanism 6, compression bladder 601, semi-circular magnetic ring 602, arc-shaped cleaning plate 603, connecting disc 604, moving rod 605, fixed frame 606, connecting spring 607, second cleaning block 608, magnetic strip 609, and arc-shaped protrusion 610. Detailed Implementation

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

[0020] like Figures 1-9 As shown, this embodiment of the invention provides a track-type box lifting device, including a frame 1, a support 2, a sliding device 3, a slide rail 4, a cleaning mechanism 5, and a second cleaning mechanism 6. The support 2 is fixedly connected to the bottom of the frame 1, the sliding device 3 is provided in the middle of the frame 1, the slide rail 4 is provided at the top of the frame 1 on both sides of the sliding device 3, the slide rail 4 is fixedly connected to the frame 1, the cleaning mechanism 5 is rotatably connected to both sides of the sliding device 3, the second cleaning mechanism 6 is fixedly connected to both sides of the slide rail 4, pulleys 301 are fixedly connected to both sides of the sliding device 3, and a handling device 302 is fixedly connected to the bottom of the sliding device 3. The cleaning mechanism 5 is rotatably connected to the pulleys 301. The left and right sides of the sliding device 3 are provided with strip-shaped grooves near the bottom, and the slide rail 4 is provided with semi-circular openings evenly on both sides.

[0021] The cleaning mechanism 5 includes connectors 501 rotatably connected to both sides of the sliding device 3. A water supply device 502 is fixedly connected to the end of the connector 501 away from the pulley 301. A sliding plate 503 is fixedly connected to the right side of the water supply device 502. A connecting block 505 is slidably connected to the bottom end of the sliding plate 503. A connecting water tank 504 is fixedly connected to the bottom right end of the water supply device 502. The connecting water tank 504 is fixedly connected to the connecting block 505 located at the rightmost bottom end of the sliding plate 503. The connecting blocks 505 are fixedly connected to each other. A limiting spring 506 is fixedly connected to the connecting block 505. Magnetic ball rods 507 are fixedly connected to both sides of the connecting block 505. A telescopic water guide pipe is provided inside the connecting block 505, passing through the connecting block 505 and fixedly connected to it. The water supply device 502 is fixedly connected to the connecting water tank 504 via a conduit. The cleaning mechanism 5 also includes limiting elastic bladders 508 uniformly fixedly connected to the bottom end of the connecting block 505. Cleaning blocks 50 are fixedly connected to the bottom ends of the limiting elastic bladders 508 located on both sides below the connecting block 505. 9. An arc-shaped cleaning block 510 is fixedly connected to the bottom end of a limiting elastic bladder 508 located in the middle of the lower part of the connecting block 505. An arc-shaped water nozzle 512 is fixedly connected to the bottom end of the cleaning block 509. A water nozzle 513 is fixedly connected to the bottom end of the arc-shaped cleaning block 510. An elastic connecting plate 515 is fixedly connected to the bottom ends of the arc-shaped cleaning block 510 and the cleaning block 509. Cleaning brushes 511 are evenly fixedly connected to the outer side of the elastic connecting plate 515. Connecting water guides 514 are evenly provided inside the connecting block 505. The elastic connecting plate 515... The bottom end passes through the connecting block 505 and is fixedly connected to the top of the limiting elastic bladder 508. The telescopic water guide pipe passes through the connecting block 505 and is fixedly connected to the connecting water guide 514. The bottom ends of the arc-shaped water nozzles 512 and 513 pass through the elastic connecting plate 515 and are placed below the elastic connecting plate 515. An automatic pressure sensing valve is provided between the arc-shaped water nozzles 512 and 513 and the cleaning block 509 and arc-shaped cleaning block 510. The bottom end of the arc-shaped water nozzle 512 is tilted away from the arc-shaped cleaning block 510.

[0022] The second cleaning mechanism 6 includes compression bladders 601 uniformly and fixedly connected to both sides of the slide rail 4. A semi-circular magnetic ring 602 is slidably connected inside the compression bladder 601. The semi-circular magnetic ring 602 is fixedly connected to the slide rail 4. Arc-shaped cleaning plates 603 are uniformly arranged inside the semi-circular opening of the semi-circular magnetic ring 602 and the slide rail 4. A connecting plate 604 is fixedly connected to one end of the arc-shaped cleaning plate 603 away from the slide rail 4. A moving rod 605 is fixedly connected to the other end of the connecting plate 604. A fixing frame 606 is fixedly connected to the moving rod 605. A connecting spring 607 is fixedly connected between the fixing frame 606 and the end of the moving rod 605 away from the slide rail 4. The connecting spring 607 is fixedly connected to the inner side of the compression bladder 601 away from the slide rail 4. The magnetic poles of the semi-circular magnetic ring 602 and the arc-shaped cleaning plate 603 are opposite. The area of ​​the connecting plate 604 is smaller than the area of ​​the semi-circular opening. The arc-shaped cleaning plate 603 has one end away from the connecting plate 604 that curves outward. The second cleaning mechanism 6 also includes a second cleaning block 608 disposed on both sides of the slide rail 4. The bottom end of the second cleaning block 608 on the side of the slide rail 4 away from the sliding device 3 is fixedly connected to the frame 1. The second cleaning block 608 on the side of the slide rail 4 near the sliding device 3 is fixedly connected to the strip groove. A rectangular opening is provided near the bottom end. A second rectangular opening is provided in the middle of the rectangular opening. An arc-shaped protrusion 610 is fixedly connected to the right side of the second rectangular opening. A magnetic strip 609 is fixedly connected to the top and bottom parts of the rectangular opening. The top of the second cleaning block 608 on the side of the slide rail 4 away from the sliding device 3 is rotatably connected to the pulley 301. The magnetic poles of the compression bladder 601 on the side away from the slide rail 4 and the magnetic strip 609 are the same.

[0023] In use, when the sliding device 3 is activated, it moves the handling device 302 via the pulley 301 to move the container. The sliding device 3 slides on the slide rail 4, and the pulley 301 moves the connecting piece 501. At the same time, the water supply device 502 is activated to inject water into the connecting water tank 504 through the conduit. As the connecting piece 501 moves the water supply device 502 and the connecting block 505, the water entering the connecting water tank 504 flows through the telescopic water guide pipe in the limiting spring 506 into the connecting water guide piece 514 and the limiting elastic bladder 508, causing the limiting elastic bladder 508 to extend downward by a certain length, pushing the cleaning block 509 and... The arc-shaped cleaning block 510 and the cleaning brush 511 move closer to the inner surface of the slide rail 4. Under the action of the connecting piece 501 driving the connecting block 505 to move, the cleaning brush 511 cleans the inner surface of the slide rail 4. At the same time, during the movement, the connecting block 505 intermittently supplies current to the limiting spring 506 for a period of time. After the limiting spring 506 is energized, the coils of the limiting spring 506 contract due to mutual attraction of the current, which drives the connecting block 505 to move. When the limiting spring 506 contracts, it causes the telescopic water guide tube to contract, reducing the space inside the telescopic water guide tube and thus squeezing the water in the telescopic water guide tube into the limiting spring through the connecting water guide piece 514. The elastic bladder 508 further pushes the cleaning block 509, the arc-shaped cleaning block 510, and the cleaning brush 511 to adhere tightly to the surface of the slide rail 4, thus enhancing the cleaning effect. After a period of current is supplied to the limiting spring 506, the current is stopped, causing the limiting spring 506 to push the connecting block 505 back to its original position due to its elasticity. This allows the connecting block 505 to move continuously left and right during the movement, increasing the friction frequency between the cleaning brush 511 and the surface of the slide rail 4, further enhancing the cleaning effect. After cleaning one end for a period of time, the current flowing into the limiting spring 506 is increased, causing the limiting spring 506 to fully contract and further compress the telescopic water guide tube, increasing the pressure in the limiting elastic bladder 508. At this time, the automatic pressure valve opens, causing the water in the connecting block 505, connecting water tank 504, limiting elastic bladder 508, and connecting water guide 514 to be sprayed out through the arc-shaped spray nozzles 512 and 513, flushing the dust cleaned from the slide rail 4 and the dust on the cleaning brush 511, and causing the water entering the slide rail 4 to carry the dust out through the semi-circular opening on the slide rail 4, preventing the dust from accumulating in the slide rail 4.

[0024] During its movement, pulley 301 drives the second cleaning block 608 to move. The movement of the second cleaning block 608, in turn, drives the magnetic strip 609 and the arc-shaped protrusion 610 to move. When the magnetic strip 609 passes the compression bladder 601, the compression bladder 601 moves closer to the slide rail 4 due to the magnetic repulsion between it and the magnetic strip 609, compressing the air inside the compression bladder 601. Simultaneously, when the arc-shaped protrusion 610 passes the end of the moving rod 605 away from the slide rail 4, it squeezes the moving rod 605, causing it to push the arc-shaped cleaning plate 603 into the semi-circular magnetic ring 602 and the semi-circular opening, stretching the connecting spring 607. When the arc-shaped cleaning plate 603 is fully inside the semi-circular magnetic ring 602, current is passed into the semi-circular magnetic ring 602, causing the arc-shaped cleaning plate 603 to move towards the semi-circular magnetic ring 602 under its magnetic force. 2. The inner wall moves to one side, so that the raised end of the arc-shaped cleaning plate 603 is pressed tightly against the semi-circular magnetic ring 602 and the inner wall of the semi-circular opening. When the arc-shaped protrusion 610 moves away from the moving rod 605, the moving rod 605 is reset by the action of the connecting spring 607, and the connecting plate 604 collides with the fixed frame 606. Under the action of inertia, the arc-shaped cleaning plate 603 is scraped off from the semi-circular opening and the inner wall of the semi-circular magnetic ring 602, and the dust is carried out from the semi-circular opening and the semi-circular magnetic ring 602. When the arc-shaped protrusion 610 moves away from the moving rod 605, the current is stopped to the end of the compression bladder 601 away from the slide rail 4, so that the compression bladder 601 is quickly reset, which drives the connecting spring 607 to extend and carry the arc-shaped cleaning plate 603 out from the semi-circular magnetic ring 602 and the semi-circular opening, further improving the cleaning effect of dust in the semi-circular opening.

Claims

1. A rail-mounted box lifting device, comprising a frame (1), a support (2), a sliding device (3), a slide rail (4), a cleaning mechanism (5), and a second cleaning mechanism (6), characterized in that: The bottom end of the frame (1) is fixedly connected to a bracket (2), the middle part of the frame (1) is provided with a sliding device (3), the top of the frame (1) on both sides of the sliding device (3) is provided with a slide rail (4), the slide rail (4) is fixedly connected to the frame (1), the two sides of the sliding device (3) are rotatably connected with a cleaning mechanism (5), and the two sides of the slide rail (4) are fixedly connected with a second cleaning mechanism (6). The cleaning mechanism (5) includes a connector (501) rotatably connected to both sides of the sliding device (3). A water supply device (502) is fixedly connected to one end of the connector (501) away from the pulley (301). A sliding plate (503) is fixedly connected to the right side of the water supply device (502). A connecting block (505) is evenly slidably connected to the bottom end of the sliding plate (503). A connecting water tank (504) is fixedly connected to the bottom right side of the water supply device (502). The connecting water tank (504) is fixedly connected to the connecting block (505) located at the rightmost bottom end of the sliding plate (503). A limit spring (506) is fixedly connected between the connecting blocks (505). Magnetic ball rods (507) are fixedly connected to both sides of the connecting block (505). A telescopic water guide pipe is provided inside the connecting block (505). The telescopic water guide pipe passes through the connecting block (505) and is fixedly connected to the connecting block (505). The water supply device (502) and the connecting water tank (504) are fixedly connected through a conduit. The sliding device (3) is fixedly connected to pulleys (301) on both sides, and a conveying device (302) is fixedly connected to the bottom of the sliding device (3). The cleaning mechanism (5) is rotatably connected to the pulleys (301). The left and right sides of the sliding device (3) are provided with strip grooves near the bottom. The slide rail (4) is provided with semi-circular openings evenly on both sides. The cleaning mechanism (5) further includes a limiting elastic bladder (508) uniformly fixedly connected to the bottom end of the connecting block (505). The bottom ends of the limiting elastic bladders (508) located on both sides below the connecting block (505) are fixedly connected to cleaning blocks (509). The bottom ends of the limiting elastic bladders (508) located in the middle below the connecting block (505) are fixedly connected to arc-shaped cleaning blocks (510). The bottom ends of the cleaning blocks (509) are fixedly connected to arc-shaped water nozzles (512). The bottom ends of the arc-shaped cleaning blocks (510) are fixedly connected to water nozzles (513). The bottom ends of the arc-shaped cleaning blocks (510) and the cleaning blocks (509) are fixedly connected to elastic connecting plates (515). Cleaning brushes (511) are uniformly fixedly connected to the outside of the elastic connecting plates (515). Connecting water guides (514) are uniformly provided inside the connecting block (505). The bottom end of the elastic connecting plate (515) passes through the connecting block (505) and is fixedly connected to the top end of the limiting elastic bladders (508).

2. The rail-mounted box lifting device according to claim 1, characterized in that: The telescopic water guide pipe passes through the connecting block (505) and is fixedly connected to the connecting water guide (514). The bottom ends of the arc-shaped water nozzle (512) and the water nozzle (513) pass through the elastic connecting plate (515) and are placed below the elastic connecting plate (515). An automatic pressure sensing valve is provided between the intersection of the arc-shaped water nozzle (512) and the water nozzle (513) and the cleaning block (509) and the arc-shaped cleaning block (510). The bottom end of the arc-shaped water nozzle (512) is inclined to the side away from the arc-shaped cleaning block (510).

3. The rail-mounted box lifting device according to claim 1, characterized in that: The second cleaning mechanism (6) includes compression bladders (601) uniformly fixedly connected to both sides of the slide rail (4). A semi-circular magnetic ring (602) is slidably connected inside the compression bladder (601). The semi-circular magnetic ring (602) is fixedly connected to the slide rail (4). An arc-shaped cleaning plate (603) is uniformly provided inside the semi-circular opening of the semi-circular magnetic ring (602) and the slide rail (4). A connecting plate (604) is fixedly connected to one end of the arc-shaped cleaning plate (603) away from the slide rail (4). A moving rod (605) is fixedly connected to the other end of the connecting plate (604). A fixing frame (606) is fixedly connected to the moving rod (605). A connecting spring (607) is fixedly connected between the fixing frame (606) and the end of the moving rod (605) away from the slide rail (4).

4. A rail-mounted box lifting device according to claim 3, characterized in that: The connecting spring (607) is fixedly connected to the end of the compression bladder (601) away from the slide rail (4). The magnetic poles of the semi-circular magnetic ring (602) and the arc-shaped cleaning plate (603) are opposite. The area of ​​the connecting disk (604) is smaller than the area of ​​the semi-circular opening. The end of the arc-shaped cleaning plate (603) away from the connecting disk (604) is raised outward.

5. A rail-mounted box lifting device according to claim 3, characterized in that: The second cleaning mechanism (6) also includes a second cleaning block (608) disposed on both sides of the slide rail (4). The bottom end of the second cleaning block (608) located on the side of the slide rail (4) away from the sliding device (3) is fixedly connected to the frame (1). The second cleaning block (608) located on the side of the slide rail (4) close to the sliding device (3) is fixedly connected to the strip groove. A rectangular opening is provided near the bottom end. A second rectangular opening is provided in the middle of the rectangular opening. An arc-shaped protrusion (610) is fixedly connected to the right side of the second rectangular opening. A magnetic strip (609) is fixedly connected to the top and bottom parts of the rectangular opening. The top end of the second cleaning block (608) located on the side of the slide rail (4) away from the sliding device (3) is rotatably connected to the pulley (301). The end of the compression bladder (601) away from the slide rail (4) has the same magnetic pole as the magnetic strip (609).

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