A rust-proof treatment system and process for cable tray

Abstract

The present invention discloses a rust-proofing treatment system and process for cable bridges, relates to the field of cable bridge galvanizing, and solves the problem of insufficient galvanizing of the cable bridge fitting position when the existing rust-proofing treatment system for cable bridges is used. The system comprises a lifting plate, a lifting mechanism, a driving mechanism and a toggle device, both ends of the lifting plate are fixedly connected with a device box, and the lifting plate is fixedly connected with a lifting hook. The rust-proofing treatment system and process for cable bridges, the lifting mechanism is used to lift and suspend both ends of multiple groups of cable bridges, when the cable bridge is immersed in a zinc liquid tank for galvanizing, the driving mechanism automatically drives the lifting mechanism to slide to both sides by utilizing buoyancy so that the spacing between the multiple groups of cable bridges is expanded, thereby avoiding difficulty in uniform galvanizing of the contact positions, and at the same time, when the cable bridge is moved out of the zinc liquid tank, the driving mechanism is driven to move closer to the middle, so that the multiple groups of cable bridges contact each other, thereby preventing swinging and collision during the lifting and moving process to cause damage such as depression and coating shedding.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridge galvanizing, in particular to an anti-rust treatment system and process for a cable bridge. Background Art

[0002] Cable trays come in trough, tray, ladder, and grid configurations, and are composed of brackets, supports, and mounting accessories. Cable trays within buildings can be installed independently or attached to various structures and pipe gallery supports. They should feature a simple structure, attractive design, flexible configuration, and easy maintenance. All components must be galvanized for rust prevention.

[0003] Existing rust-proof treatments for cable trays mostly use a galvanizing process, which includes a series of operations such as hoisting, pickling, washing, drying, zinc dipping, cooling, passivation, and unloading. During hoisting, multiple cable trays are suspended from a hoist at both ends via steel wire ropes. The hoist drives the cable trays through liquid tanks such as pickling tanks, water washing tanks, and zinc liquid tanks, and then raises and lowers them to immerse them in the entire galvanizing process. However, in order to prevent multiple cable trays from colliding with each other during movement, existing hoisting equipment generally suspends the cable trays close to each other. However, this will result in insufficient galvanizing of the cable trays at the joints during the galvanizing process. To this end, we propose a rust-proof treatment system and process for cable trays. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-rust treatment equipment and process for cable trays, which facilitates the cable trays to be more comprehensively and evenly galvanized during the galvanizing process while preventing collision damage during movement, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-rust treatment system for a cable tray, comprising a hoisting plate, a hoisting mechanism, a driving mechanism and a toggle device, both ends of the hoisting plate are fixedly connected to a device box, a hoisting hook is fixedly connected to the hoisting plate, the hoisting mechanism is installed on the device box, and is used to hang the two ends of multiple groups of cable trays, the driving mechanism is installed on the device box, and is used to automatically drive the hoisting mechanism to slide to both sides by utilizing buoyancy when the cable tray is immersed in a zinc liquid tank for galvanizing, so that the spacing between the multiple groups of cable trays is expanded to avoid contact. The contact position is difficult to be galvanized evenly, and at the same time, when the cable tray is moved out of the zinc liquid tank, the lifting mechanism is driven to move closer to the middle, so that multiple groups of cable trays are in contact with each other to prevent swinging and colliding with each other during the lifting and moving process, causing damage such as dents and coating shedding. The toggle device is installed on the device box, and is used to link the zinc oxide layer on the surface of the zinc liquid tank to both sides when the cable tray is moved out of the zinc liquid tank to prevent it from adhering to the surface of the cable tray and causing uneven coating, etc., so that the cable tray can be galvanized more comprehensively and evenly during the galvanizing process, while preventing collision damage during the movement.

[0006] Preferably, the lifting mechanism includes a first hook fixedly mounted on the device box, two groups of sliding grooves are provided on the device box, second hooks are provided on both sides of the first hook and are respectively slidably connected to the two groups of sliding grooves, the first hook and the second hook are both provided with steel wire ropes for hanging the cable tray, and the driving mechanism is used to control and adjust the position of the second hook to facilitate the lifting and movement of the cable tray.

[0007] Preferably, the driving mechanism includes a lightweight plate, which is made of a lightweight hollow plastic material. A lifting groove is provided in the device box, and a first spring fixedly connected to the top surface of the lightweight plate is fixedly connected in the lifting groove. The side of the lightweight plate is slidably connected to the inner wall of the lifting groove. A device groove is provided in the device box, and a linkage part is provided in the device groove for linking the second hook to slide away from the first hook in the sliding groove when the lightweight plate is moved upward by buoyancy, thereby facilitating adjustment of the spacing between cable trays.

[0008] Preferably, the linkage part includes a connecting tube fixedly installed in the device groove, a transverse tube fixedly connected in the device groove, the middle part of the transverse tube is communicated with the top end of the connecting tube, two groups of sliding tubes are slidably connected in the transverse tube, a first tension spring is fixedly connected between the two groups of sliding tubes, and the sliding tube is provided with a protective part for linking the second hook to slide and closing the sliding groove opening when the sliding tube slides, thereby preventing zinc liquid from entering the sliding groove during sliding, so as to facilitate linking the second hook to slide away from the first hook in the sliding groove when the lightweight plate is moved upward by buoyancy.

[0009] Preferably, the protective member includes a horizontal plate fixedly mounted on the second hook, the horizontal plate is slidably connected to the sliding groove, a sliding block slidably connected to the device groove is fixedly connected to the horizontal plate, and one end of the two groups of sliding tubes are fixedly connected to connecting rods respectively fixedly connected to the two groups of sliding blocks, so as to prevent zinc liquid from entering the sliding groove during sliding.

[0010] Preferably, the toggle device includes two groups of first toggle plates and a second toggle plate, both sides of the two groups of the first toggle plates are fixedly connected with drive shafts rotatably connected to the device boxes on both sides, and the second toggle plates are provided with guide grooves slidably connected to the first toggle plates. A driving member is provided in the device groove for linking the drive shaft to drive the first toggle plate to toggle when the second hook moves, and a limiting member is provided on the device box for limiting the bottom end position of the second toggle plate and supporting the second toggle plate to reduce its toggle resistance, so as to facilitate the removal of impurities on the surface of the zinc liquid tank to prevent them from adhering to the surface of the cable tray.

[0011] Preferably, the driving member includes a first gear coaxially fixedly installed on one end of the driving shaft, and the upper ends of the two groups of sliding blocks are fixedly connected with racks respectively meshing with the two groups of the first gears, and the two groups of racks are slidingly connected to the device groove. The two groups of racks are arranged side by side and slide with each other, so that when the second hook moves, the driving shaft is linked to drive the first toggle plate to toggle.

[0012] Preferably, the limiting member includes a support frame fixedly mounted on the side of the device box, the support frame is fixedly connected to a guide rail, and the bottom end of the side of the second toggle plate is rotatably connected to a guide block slidably connected to the guide rail, so as to facilitate limiting the bottom end position of the second toggle plate and at the same time support the second toggle plate to reduce its toggle resistance.

[0013] A treatment process for a rust-proof treatment system for a cable tray, comprising the following steps:

[0014] Step 1, installation stage: install the hoisting hook on the hoisting machine, fix the two ends of the cable tray on the hoisting mechanism respectively, and the driving mechanism makes multiple groups of cable trays move closer to each other to prevent the cable trays from colliding with each other and causing dents during the hoisting and moving process. Start the hoisting machine to drive the hoisting plate so that the cable trays are immersed in different liquids to carry out the anti-rust treatment process;

[0015] Step 2, galvanizing stage: When the cable tray is immersed in the zinc liquid tank for galvanizing, the driving mechanism is driven by the buoyancy of the zinc liquid to expand the distance between the cable trays, thereby ensuring that the sides of the cable tray can be uniformly galvanized during the galvanizing process;

[0016] Step 3, lifting stage: when the galvanizing is completed, the lifting plate moves the cable tray up and out of the zinc liquid tank through the lifting mechanism. At this time, the driving mechanism is gradually reduced by the buoyancy and the toggle device is linked to both sides, so that the zinc oxide layer accumulated above the zinc liquid tank is pushed away to prevent it from unevenly adhering to the surface of the cable tray and affecting the appearance and galvanizing effect. At the same time, the driving mechanism brings the cable tray closer again.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a rust-proof treatment system and process for cable trays, which fix the two ends of the cable tray on the steel wire ropes on the first hook and the second hook at the corresponding positions on both sides, and the hoisting machine drives the hoisting hooks to make the hoisting plate rise and fall and immerse in liquid pools such as pickling tanks, water washing tanks and zinc liquid tanks to realize the entire galvanizing process. Swaying will occur during the movement. At this time, the first spring pushes the lightweight plate to move downward, so that the gas in the horizontal pipe is drawn into the connecting pipe and the lifting groove. The sliding pipes on both sides are pulled closer to the middle by the tension of the first tension spring, and at the same time drive the connecting rod sliding blocks on both sides to make the second hook move closer to the middle, so that the cable trays on the second hooks on both sides can be close and fit together, preventing collisions during transportation that cause dents and coating shedding and other damage.

[0019] 2. The present invention provides a rust-proofing system and process for cable trays. When the cable tray is immersed in a zinc liquid tank, the zinc liquid has a large density and a large buoyancy, which will generate a strong upward thrust on the lightweight plate, pushing the lightweight plate up and compressing the first spring while squeezing the gas in the lifting tank to the middle of the connecting pipe and the cross pipe. The gas pushes the sliding tubes on both sides to slide to both sides while pulling the first tension spring, driving the connecting rod 25 and the sliding block to drive the second hook to drive the wire rope and the cable tray to slide to both sides to release the fitting state, so that the side of the cable tray can be fully and evenly galvanized for rust prevention during the galvanizing process.

[0020] 3. The present invention provides a rust prevention treatment system and process for a cable tray. When immersed in a zinc liquid tank, the second hook and the sliding block slide to both sides, while driving the upper rack to slide to both sides at the same time, thereby driving the first gear to rotate. The first gear drives the drive shaft to rotate the first toggle plate toward the middle. Under the limiting action of the guide groove and the guide rail on the guide block, the second toggle plates on both sides are rotated and toggled toward the middle at the same time. When the device box is moved out of the zinc liquid tank, the second hook slides toward the middle and drives the rack to move in the opposite direction, thereby causing the first gear and the drive shaft to drive the first toggle plate to rotate in the opposite direction at the same time. The second toggle plate can be expanded to both sides to remove the zinc oxide film on the surface of the zinc liquid tank to prevent it from unevenly adhering to the surface of the cable tray and affecting the appearance and galvanizing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0023] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 4 This is a structural diagram of the toggle device of the present invention;

[0025] Figure 5 This is a structural diagram of the hoisting mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the driving mechanism structure of the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of area A in the middle;

[0028] Figure 8 This is a cross-sectional view of the driving mechanism structure of the present invention;

[0029] Figure 9 for Figure 8 Enlarged view of area B in the middle;

[0030] Figure 10 This is a schematic diagram of the driving component structure of the present invention.

[0031] In the figure: 1-hoisting plate; 2-device box; 3-hoisting hook; 4-hoisting mechanism; 5-driving mechanism; 6-toggle device; 8-first hook; 9-sliding groove; 10-second hook; 11-steel wire rope; 12-lightweight plate; 13-lifting groove; 14-first spring; 15-device groove; 16-linkage member; 17-connecting pipe; 18-cross pipe; 19-sliding pipe; 20-first tension spring; 21-protective member; 23-cross plate; 24-sliding block; 25-connecting rod; 26-first toggle plate; 27-second toggle plate; 28-driving shaft; 29-guide groove; 30-driving member; 31-limiting member; 33-first gear; 34-rack; 35-support frame; 36-guide rail; 37-guide block. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-10 The present invention provides a technical solution: a rust-proof treatment system for a cable tray, comprising a hoisting plate 1, a hoisting mechanism 4, a driving mechanism 5 and a toggle device 6. Both ends of the hoisting plate 1 are fixedly connected to a device box 2, a hoisting hook 3 is fixedly connected to the hoisting plate 1, the hoisting mechanism 4 is installed on the device box 2, and is used to hoist and suspend both ends of multiple groups of cable trays. The driving mechanism 5 is installed on the device box 2, and is used to automatically drive the hoisting mechanism 4 to slide to both sides by utilizing buoyancy when the cable tray is immersed in a zinc liquid tank for galvanizing. The movement expands the distance between multiple groups of cable trays, avoiding the difficulty of uniform galvanizing at the contact positions. At the same time, when the cable tray is moved out of the zinc liquid tank, the lifting mechanism 4 is driven to move closer to the middle, so that multiple groups of cable trays are in contact with each other, preventing swinging and collision during the lifting and moving process, causing damage such as dents and coating shedding. The toggle device 6 is installed on the device box 2, and is used to link the zinc oxide layer on the surface of the zinc liquid tank to both sides when the cable tray is moved out of the zinc liquid tank, to prevent it from adhering to the surface of the cable tray and causing uneven coating.

[0034] The lifting mechanism 4 includes a first hook 8 fixedly mounted on the device box 2, two sets of sliding grooves 9 are provided on the device box 2, and second hooks 10 are provided on both sides of the first hook 8 and are respectively slidably connected to the two sets of sliding grooves 9. The first hook 8 and the second hook 10 are both provided with a steel wire rope 11 for hanging the cable tray, and the driving mechanism 5 is used to control and adjust the position of the second hook 10.

[0035] The driving mechanism 5 includes a lightweight plate 12, which is made of a lightweight hollow plastic material. A lifting groove 13 is provided in the device box 2, and a first spring 14 fixedly connected to the top surface of the lightweight plate 12 is fixedly connected in the lifting groove 13. The side of the lightweight plate 12 is slidably connected to the inner wall of the lifting groove 13. A device groove 15 is provided in the device box 2, and a linkage part 16 is provided in the device groove 15 for linking the second hook 10 to slide away from the first hook 8 in the sliding groove 9 when the lightweight plate 12 is moved upward by buoyancy.

[0036] The linkage member 16 includes a connecting tube 17 fixedly installed in the device groove 15, a transverse tube 18 fixedly connected in the device groove 15, the middle part of the transverse tube 18 is connected to the top of the connecting tube 17, two groups of sliding tubes 19 are slidably connected in the transverse tube 18, and a first tension spring 20 is fixedly connected between the two groups of sliding tubes 19. The sliding tube 19 is provided with a protective member 21 for linking the second hook 10 to slide when the sliding tube 19 slides and closing the opening of the sliding groove 9 to prevent zinc liquid from entering the sliding groove 9 during the sliding process.

[0037] The protective member 21 includes a horizontal plate 23 fixedly mounted on the second hook 10, the horizontal plate 23 is slidably connected to the sliding groove 9, and a sliding block 24 slidably connected to the device groove 15 is fixedly connected to the horizontal plate 23. One end of the two groups of sliding tubes 19 is fixedly connected to a connecting rod 25 fixedly connected to the two groups of sliding blocks 24 respectively.

[0038] The toggle device 6 includes two groups of first toggle plates 26 and second toggle plates 27. Both sides of the two groups of first toggle plates 26 are fixedly connected with drive shafts 28 that are respectively rotatably connected to the device boxes 2 on both sides. The second toggle plates 27 are each provided with a guide groove 29 that is slidably connected to the first toggle plates 26. A driving member 30 is provided in the device groove 15 for linking the drive shaft 28 to drive the first toggle plate 26 to toggle when the second hook 10 moves. A limiting member 31 is provided on the device box 2 for limiting the bottom end position of the second toggle plate 27 and supporting the second toggle plate 27 to reduce its toggle resistance.

[0039] The driving member 30 includes a first gear 33 coaxially fixedly mounted on one end of the driving shaft 28. The upper ends of the two sets of sliding blocks 24 are fixedly connected with racks 34 respectively meshing with the two sets of first gears 33. The two sets of racks 34 are slidably connected to the device groove 15. The two sets of racks 34 are arranged in parallel and slide with each other.

[0040] The limiting member 31 includes a support frame 35 fixedly mounted on the side of the device box 2 , a guide rail 36 is fixedly connected to the support frame 35 , and a guide block 37 slidably connected to the guide rail 36 is rotatably connected to the bottom end of the side of the second toggle plate 27 .

[0041] A treatment process for a rust-proof treatment system for a cable tray, comprising the following steps:

[0042] Step 1, installation stage: install the lifting hook 3 on the lifting machine, fix the two ends of the cable tray on the lifting mechanism 4 respectively, and drive the mechanism 5 to make multiple groups of cable trays close to each other to prevent the cable trays from colliding with each other and causing dents during the lifting and moving process. Start the lifting machine to drive the lifting plate 1 so that the cable trays are immersed in different liquids to carry out the anti-rust treatment process;

[0043] Step 2, galvanizing stage: When the cable tray is immersed in the zinc bath for galvanizing, the driving mechanism 5 is driven by the buoyancy of the zinc bath to expand the distance between the cable trays, thereby ensuring that the sides of the cable tray can be evenly galvanized during the galvanizing process;

[0044] Step 3, lifting stage: When the galvanizing is completed, the lifting plate 1 moves the cable tray up and out of the zinc liquid tank through the lifting mechanism 4. At this time, the driving mechanism 5 is gradually reduced by the buoyancy and the linkage toggle device 6 is toggled to both sides, so that the zinc oxide layer accumulated above the zinc liquid tank is pushed away to prevent it from unevenly adhering to the surface of the cable tray and affecting the appearance and galvanizing effect. At the same time, the driving mechanism 5 brings the cable tray closer again.

[0045] Working principle: Fix the two ends of the cable tray on the steel wire rope 11 on the first hook 8 and the second hook 10 at the corresponding positions on both sides respectively. The hoisting machine drives the hoisting hook 3 to make the hoisting plate 1 be lifted and immersed in liquid pools such as the pickling tank, water washing tank and zinc liquid tank to realize the entire galvanizing process. Shaking will occur during the movement. At this time, the first spring 14 pushes the lightweight plate 12 to move down, so that the gas in the horizontal tube 18 is drawn into the connecting pipe 17 and the lifting groove 13. The sliding tubes 19 on both sides are pulled closer to the middle by the tension of the first tension spring 20, while driving the connecting rod 25 sliding blocks 24 on both sides to make the second hook 10 move closer to the middle, so that the cable trays on the second hooks 10 on both sides can be brought close and fitted to prevent collisions during transportation that cause dents and coating shedding and other damage.

[0046] When the cable bridge is immersed in the zinc liquid tank, the zinc liquid has a large density and a large buoyancy, which will generate a strong upward thrust on the lightweight plate 12, pushing the lightweight plate 12 upward to compress the first spring 14 while squeezing the gas in the lifting groove 13 to the middle of the connecting pipe 17 and the cross pipe 18. The gas pushes the sliding tubes 19 on both sides to slide to both sides while pulling the first tension spring 20, driving the connecting rod 25 and the sliding block 24 to drive the second hook 10 to drive the wire rope 11 and the cable bridge to slide to both sides to release the fitting state, so that the side of the cable bridge can be fully and evenly galvanized and rust-proofed during the galvanizing process.

[0047] When immersed in the zinc liquid tank, the second hook 10 and the sliding block 24 slide to both sides, while driving the upper rack 34 to slide to both sides at the same time, thereby driving the first gear 33 to rotate, and the first gear 33 drives the driving shaft 28 to make the first toggle plate 26 rotate toward the middle. Under the limiting action of the guide groove 29 and the guide rail 36 on the guide block 37, the second toggle plates 27 on both sides are rotated and toggled toward the middle at the same time. When the device box 2 is moved out of the zinc liquid tank, the second hook 10 slides toward the middle and drives the rack 34 to move in the opposite direction, thereby making the first gear 33 and the driving shaft 28 drive the first toggle plate 26 to rotate in the opposite direction at the same time. The second toggle plate 27 is unfolded to both sides to remove the zinc oxide film on the surface of the zinc liquid tank to prevent it from unevenly adhering to the surface of the cable tray and affecting the appearance and galvanizing effect.

[0048] The setting of the horizontal plate 23 effectively blocks the opening of the sliding groove 9, so that the second hook 10 always ensures that the sliding groove 9 is in a state of being blocked by the horizontal plate 23 when sliding horizontally, preventing the zinc liquid from entering the device groove 15. At the same time, the setting of the second toggle plate 27 effectively solves the problem of uncertain liquid level height in the zinc liquid tank, so that when the cable tray is moved out of the zinc liquid tank, the simultaneous opening and closing of the first toggle plate 26 and the second toggle plate 27 can always remove the zinc oxide film on the surface of the zinc liquid tank. At the same time, the force required for the rotation of the drive shaft 28 is small, and it can be easily driven by the sliding of the sliding block 24. The driving force required for the horizontal sliding of the second hook 10 is also small, and there is no need to do a lot of work on the gravity of the cable tray. The buoyancy of the zinc liquid density is large, and the driving force on the lightweight plate 12 can meet the horizontal sliding of the second hook 10 and the small-angle rotation effect of the drive shaft 28.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rust prevention system for cable trays, characterized in that: include: A hanging plate (1), both ends of the hanging plate (1) are fixedly connected to a device box (2), and a hanging hook (3) is fixedly connected to the hanging plate (1); Also includes: A hoisting mechanism (4), the hoisting mechanism (4) being mounted on the device box (2) and being used to hoist and suspend the two ends of multiple groups of cable trays; A driving mechanism (5) is installed on the device box (2) and is used to automatically drive the hoisting mechanism (4) to slide to both sides by utilizing buoyancy when the cable bridge is immersed in the zinc liquid tank for galvanizing, thereby widening the spacing between the multiple groups of cable bridges and preventing the contact positions from being difficult to be uniformly galvanized. At the same time, when the cable bridge is moved out of the zinc liquid tank, the driving mechanism (4) is driven to move closer to the middle, thereby making the multiple groups of cable bridges contact each other and preventing swinging and collision during the hoisting process, thereby preventing damage such as dents and coating shedding; A toggle device (6) is mounted on the device box (2) and is used to pull the zinc oxide layer on the surface of the zinc liquid tank to both sides when the cable bridge is moved out of the zinc liquid tank, so as to prevent the zinc oxide layer from adhering to the surface of the cable bridge and causing uneven coating; The toggle device (6) comprises two groups of first toggle plates (26) and second toggle plates (27), both sides of the two groups of the first toggle plates (26) are fixedly connected with drive shafts (28) respectively connected to the device boxes (2) on both sides, the second toggle plates (27) are provided with guide grooves (29) connected to the first toggle plates (26) in a sliding manner, the device groove (15) is provided with a driving member (30) for driving the first toggle plates (26) to toggle when the second hook (10) moves in conjunction with the drive shaft (28), and the device box (2) is provided with a limiting member (31) for limiting the bottom end position of the second toggle plate (27) and supporting the second toggle plate (27) to reduce its toggle resistance; The driving member (30) includes a first gear (33) coaxially fixedly mounted on one end of the driving shaft (28), and the upper ends of the two sets of sliding blocks (24) are fixedly connected to racks (34) respectively meshing with the two sets of the first gears (33), and the two sets of racks (34) are slidably connected to the device groove (15), and the two sets of racks (34) are arranged in parallel and slide relative to each other; The limiting member (31) includes a support frame (35) fixedly mounted on a side surface of the device box (2), a guide rail (36) being fixedly connected to the support frame (35), and a guide block (37) slidably connected to the guide rail (36) being rotatably connected to the bottom end of the side surface of the second toggle plate (27).

2. The rust prevention treatment system for a cable tray according to claim 1, characterized in that: The hoisting mechanism (4) includes a first hook (8) fixedly mounted on the device box (2), two groups of sliding grooves (9) are provided on the device box (2), and second hooks (10) are provided on both sides of the first hook (8) and are respectively slidably connected to the two groups of sliding grooves (9), and the first hook (8) and the second hook (10) are both provided with steel wire ropes (11) for suspending the cable tray, and the driving mechanism (5) is used to control and adjust the position of the second hook (10).

3. The rust prevention treatment system for a cable tray according to claim 2, characterized in that: The driving mechanism (5) includes a lightweight plate (12), and the lightweight plate (12) is made of a lightweight hollow plastic material. A lifting groove (13) is provided in the device box (2), and a first spring (14) fixedly connected to the top surface of the lightweight plate (12) is fixedly connected in the lifting groove (13). The side of the lightweight plate (12) is slidably connected to the inner wall of the lifting groove (13). A device groove (15) is provided in the device box (2), and a linkage member (16) is provided in the device groove (15) for linking the second hook (10) to slide away from the first hook (8) in the sliding groove (9) when the lightweight plate (12) is moved upward by buoyancy.

4. The rust prevention treatment system for a cable tray according to claim 3, characterized in that: The linkage member (16) includes a connecting tube (17) fixedly installed in the device groove (15), a transverse tube (18) fixedly connected in the device groove (15), the middle portion of the transverse tube (18) being connected to the top end of the connecting tube (17), two groups of sliding tubes (19) being slidably connected in the transverse tube (18), a first tension spring (20) being fixedly connected between the two groups of sliding tubes (19), and a protective member (21) being provided on the sliding tube (19) for linking the second hook (10) to slide when the sliding tube (19) slides and closing the opening of the sliding groove (9) to prevent zinc liquid from entering the sliding groove (9) during the sliding process.

5. The rust prevention treatment system for a cable tray according to claim 4, characterized in that: The protective member (21) includes a transverse plate (23) fixedly mounted on the second hook (10), the transverse plate (23) being slidably connected to the sliding groove (9), a sliding block (24) being slidably connected to the device groove (15) being fixedly connected to the transverse plate (23), and one end of each of the two groups of sliding tubes (19) being fixedly connected to a connecting rod (25) respectively fixedly connected to the two groups of sliding blocks (24).

6. A treatment process for the rust prevention treatment system for cable trays according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1, installation stage: install the hoisting hook (3) on the hoisting machine, fix the two ends of the cable tray on the hoisting mechanism (4) respectively, and the driving mechanism (5) makes multiple groups of cable trays move closer to each other to prevent the cable trays from colliding with each other and causing dents during the hoisting and moving process. Start the hoisting machine to drive the hoisting plate (1) so that the cable trays are immersed in different liquids to carry out the anti-rust treatment process; Step 2, galvanizing stage: when the cable bridge is immersed in the zinc liquid tank for galvanizing, the driving mechanism (5) is driven by the buoyancy of the zinc liquid to expand the distance between the cable bridges, thereby ensuring that the side surfaces of the cable bridge can be uniformly galvanized during the galvanizing process; Step 3, lifting stage: when the galvanizing is completed, the hoisting plate (1) moves the cable tray upward and takes it out of the zinc liquid tank through the hoisting mechanism (4). At this time, the driving mechanism (5) is gradually reduced by the buoyancy and the shifting device (6) is linked to shift to both sides, so that the zinc oxide layer accumulated above the zinc liquid tank is shifted away to prevent it from unevenly adhering to the surface of the cable tray and affecting the appearance and galvanizing effect. At the same time, the driving mechanism (5) brings the cable tray closer again.

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