Anticorrosion treatment device for metal structure
By introducing a drying box and a lifting suspension device into the metal structure anti-corrosion treatment device, the problem of lack of rapid drying after hot-dip galvanizing is solved, and rapid drying and efficient hot-dip galvanizing treatment of metal products are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国水利水电第七工程局有限公司
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-19
AI Technical Summary
The lack of rapid drying measures after hot-dip plating results in low processing efficiency.
A metal structure anti-corrosion treatment device was designed, which includes a drying box and a lifting suspension device. The metal products are transferred to the drying box by rotating the shaft driven by the motor, and are quickly dried by electric heating wire and fan. At the same time, the lifting suspension device realizes hot-dip galvanizing at different heights.
It enables rapid drying of metal products and improves the efficiency of hot-dip galvanizing.
Smart Images

Figure CN224258734U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal corrosion protection technology, specifically referring to a metal structure corrosion protection device. Background Technology
[0002] Metal structure corrosion protection refers to the process of preventing metal structures from being corroded through various methods in order to extend their service life and ensure their performance and safety. Metals are prone to chemical reactions with oxygen, water and other substances in the air, leading to rust and corrosion. Corrosion protection is to take measures to prevent or slow down the occurrence of this chemical reaction. Common corrosion protection methods include paint coating, hot-dip galvanizing, electroplating, chemical plating and rust inhibitor treatment, etc.
[0003] The hot-dip plating process we are talking about involves immersing metal products in a molten metal salt solution to form a metal coating on their surface. However, existing hot-dip plating methods have some shortcomings: after the metal products are removed from the hot-dip plating solution, there is a lack of drying measures, which means that it takes a long time for them to set before they can be unloaded, which greatly reduces the efficiency of the hot-dip plating process. Utility Model Content
[0004] The technical problem to be solved by this utility model is that in the prior art, when hot-dip galvanizing metal products for corrosion protection, there is a lack of rapid drying measures after hot-dip galvanizing, which greatly reduces the efficiency of hot-dip galvanizing.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a metal structure anti-corrosion treatment device, including a hot-dip galvanizing tank, a side block fixedly connected to the side wall of the hot-dip galvanizing tank, a motor fixedly connected to the bottom wall of the side block, a rotating shaft provided at the output end of the motor, a top plate fixedly connected to the upper end of the rotating shaft, a drying box provided on one side of the hot-dip galvanizing tank, limit grooves symmetrically provided on both sides of the top wall of the drying box, a cover slidably provided in the limit groove, a lifting suspension device provided downward in the top plate, and a drying device provided in the side wall of the drying box and the limit groove.
[0006] Furthermore, the drying device includes a fixing block, which is fixedly connected to the side wall of the drying chamber. An electric push rod is fixedly connected to the fixing block. The output end of the electric push rod is connected to an ear plate and fixedly connected to a cover. A wrapping groove is provided in the cover. Fans are symmetrically arranged on the side wall of the drying chamber. An electric heating wire is provided at the bottom of the drying chamber. By heating the electric heating wire with electricity and blowing it with the fan, the metal products can be dried quickly.
[0007] Furthermore, the lifting suspension device includes a second motor, which is fixedly connected to the upper end of the top plate. The output end of the second motor is connected to a first gear. A screw is rotatably mounted in the top plate via a bearing. The upper end of the screw is fixedly connected to the second gear and meshes with the first gear. A lead screw is threadedly connected to the screw, and a connecting plate is fixedly connected to the lower end of the lead screw. Several sets of hooks are arranged in a straight line at the lower end of the connecting plate. A guide rod is fixedly connected to the upper surface of the connecting plate. The guide rod extends upward through the top plate. By rotating the screw, the lead screw can pull the connecting plate to lift and lower, thereby enabling hot-dip galvanizing at different heights when suspending metal products.
[0008] Furthermore, the cover is provided with several sets of exhaust ports, through which water vapor in the drying chamber can be discharged.
[0009] Furthermore, the length of the top plate is sufficient to ensure that the connecting plate is in a hot-dip galvanizing tank or a drying oven during rotation and reversal.
[0010] Furthermore, the height of the top plate is sufficient to allow the metal products on the hook to be completely lifted and detached from the hot-dip galvanizing tank or drying oven.
[0011] Furthermore, the dimensions of the wrapping groove (16) are matched with the lifting paths of the lead screw (21) and the guide rod (24), so that the lead screw (21) and the guide rod (24) are accommodated by the wrapping groove (16) when the cover (8) is closed.
[0012] The beneficial effects achieved by adopting the above-described structure are as follows:
[0013] 1. This utility model, by setting up a drying device, after the metal product has been hot-dip coated, drives the rotating shaft to rotate and change direction, placing the hot-dip coated metal product in the drying chamber. The cover is closed by pulling the electric push rod, and the lead screw and guide rod are respectively located in the corresponding wrapping groove. The heating wire is turned on, and the fan is turned on at the same time. The fan blows hot air onto the metal product, which can achieve rapid drying.
[0014] 2. This utility model uses a lifting suspension device to suspend metal products that need anti-corrosion treatment on hooks. By rotating gear one and gear two, the spool rotates in the top plate. The height of the metal products can be adjusted by the lead screw so that they can be inserted into the hot-dip galvanizing solution for hot-dip galvanizing. Attached Figure Description
[0015] Figure 1 The present invention relates to the overall structure of a metal structure anti-corrosion treatment device. Figure 1 ;
[0016] Figure 2 The present invention relates to the overall structure of a metal structure anti-corrosion treatment device. Figure 2 ;
[0017] Figure 3 The present invention relates to the overall structure of a metal structure anti-corrosion treatment device. Figure 3 ;
[0018] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle.
[0019] Among them, 1. hot-dip galvanizing tank, 2. side block, 3. motor one, 4. rotating shaft, 5. top plate, 6. drying box, 7. limiting groove, 8. cover, 9. lifting suspension device, 10. drying device, 11. fixing block, 12. electric push rod, 13. ear plate, 14. heating wire, 15. fan, 16. wrapping groove, 17. motor two, 18. gear one, 19. wire drum, 20. gear two, 21. lead screw, 22. connecting plate, 23. hook, 24. guide rod, 25. exhaust port. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0022] like Figure 1-4 This utility model discloses a metal structure anti-corrosion treatment device, including a hot-dip galvanizing tank 1, a side block 2 fixedly connected to the side wall of the hot-dip galvanizing tank 1, a motor 3 fixedly connected to the bottom wall of the side block 2, a rotating shaft 4 provided at the output end of the motor 3, a top plate 5 fixedly connected to the upper end of the rotating shaft 4, a drying box 6 provided on one side of the hot-dip galvanizing tank 1, limit grooves 7 symmetrically provided on both sides of the top wall of the drying box 6, a cover 8 slidably provided in the limit groove 7, a number of exhaust ports 25 provided in the cover 8, through which water vapor in the drying box 6 can be discharged, a lifting suspension device 9 is provided downward in the top plate 5, and a drying device 10 is provided in the side wall of the drying box 6 and the limit grooves 7.
[0023] like Figure 1-3The drying device 10 includes a fixing block 11, which is fixed to the side wall of the drying chamber 6. An electric push rod 12 is fixed to the fixing block 11. The output end of the electric push rod 12 is connected to an ear plate 13 and fixed to a cover 8. A wrapping groove 16 is provided in the cover 8. Fans 15 are symmetrically arranged on the side wall of the drying chamber 6. An electric heating wire 14 is provided at the bottom of the drying chamber 6. The metal products can be dried quickly by heating the electric heating wire 14 with the blowing of the fan 15.
[0024] like Figure 1-4 The lifting suspension device 9 includes a second motor 17, which is fixed to the upper end of the top plate 5. The output end of the second motor 17 is connected to a gear 18. A screw 19 is rotatably installed in the top plate 5 through a bearing. The upper end of the screw 19 is fixedly connected to a gear 20 and meshes with the gear 18. A screw rod 21 is internally threaded to the screw 19, and a connecting plate 22 is fixedly connected to the lower end of the screw rod 21. Several sets of hooks 23 are arranged in a straight line at the lower end of the connecting plate 22. The length of the top plate 5 is sufficient to ensure that the connecting plate 22 is in the hot-dip galvanizing tank 1 or the drying oven 6 when rotating and changing direction. A guide rod 24 is fixedly connected to the upper end face of the connecting plate 22 and extends upward through the top plate 5. The height of the top plate 5 is sufficient to allow the metal products on the hooks 23 to be completely lifted and detached from the hot-dip galvanizing tank 1 or the drying oven 6. By rotating the screw 19, the screw rod 21 can pull the connecting plate 22 to lift and lower, so that hot-dip galvanizing can be performed at different heights when suspending metal products.
[0025] The dimensions of the wrapping groove 16 are matched with the lifting paths of the lead screw 21 and the guide rod 24, so that the lead screw 21 and the guide rod 24 are accommodated by the wrapping groove 16 when the cover 8 is closed.
[0026] In practical use, the metal products to be hot-dip galvanized are suspended on hook 23. Multiple sets of metal products can be suspended on hook 23 at a time. After suspension, the motor 17 is started, and gear 18 meshes with gear 20 to rotate, which drives the screw spool 19 to rotate in the top plate 5. Since the lower end of the screw 21 is fixed to the connecting plate 22, and the upper end of the connecting plate 22 is restricted by the guide rod 24, the connecting plate 22 will not rotate. In this way, the screw 21 will drive the connecting plate 22 to rise and fall until the metal products are completely lowered below the liquid surface in the hot-dip galvanizing tank 1, and then hot-dip galvanizing for corrosion protection can be performed.
[0027] After hot-dip galvanizing is completed, the metal product is lifted completely from the hot-dip galvanizing tank 1 by motor 2 17. Motor 1 3 is started, and the rotating shaft 4 drives the top plate 5 to rotate until the metal product is directly above the drying chamber 6. The metal product is then lowered into the drying chamber 6. The ear plate 13 is pulled by the electric push rod 12, and the cover 8 slides in the limiting groove 7 to close the drying chamber 6. The heating wire 14 is turned on to generate heat. The fan 15 is turned on and blows the heat onto the metal product, which can accelerate the drying of the metal product. The dried water vapor is discharged from the exhaust port 25, which greatly improves the anti-corrosion hot-dip galvanizing efficiency of the metal product.
[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A metal structure corrosion protection device, characterized in that: The device includes a hot-dip galvanizing tank (1), a side block (2) fixedly connected to the side wall of the hot-dip galvanizing tank (1), a motor (3) fixedly connected to the bottom wall of the side block (2), a rotating shaft (4) connected to the output end of the motor (3), a top plate (5) fixedly connected to the upper end of the rotating shaft (4), a drying box (6) provided on one side of the hot-dip galvanizing tank (1), symmetrically opened limit grooves (7) on both sides of the top wall of the drying box (6), a cover (8) slidably provided in the limit groove (7), a lifting suspension device (9) provided in the top plate (5), and a drying device (10) provided in the side wall and limit groove (7) of the drying box (6).
2. The metal structure anti-corrosion treatment device according to claim 1, characterized in that: The drying device (10) includes a fixing block (11) fixed to the side wall of the drying box (6), an electric push rod (12) fixed to the fixing block (11), an ear plate (13) connected to the output end of the electric push rod (12) and fixed to the cover (8), a wrapping groove (16) is provided in the cover (8), fans (15) are symmetrically arranged on the side wall of the drying box (6), and heating wires (14) are provided at the bottom of the drying box (6).
3. The metal structure anti-corrosion treatment device according to claim 2, characterized in that: The lifting suspension device (9) includes a second motor (17) fixed to the upper end of the top plate (5). The output end of the second motor (17) is connected to a first gear (18). A screw spool (19) is rotatably arranged in the top plate (5) through a bearing. The upper end of the screw spool (19) is fixedly connected to a second gear (20) that meshes with the first gear (18). A screw rod (21) is threadedly connected to the screw spool (19). A connecting plate (22) is fixedly connected to the lower end of the screw rod (21). Several hooks (23) are arranged in a straight line at the lower end of the connecting plate (22). A guide rod (24) is fixedly connected to the upper end of the connecting plate (22). The guide rod (24) extends upward through the top plate (5).
4. A metal structure anti-corrosion treatment device according to any one of claims 1 or 2, characterized in that: The cover (8) has several vents (25).
5. The metal structure anti-corrosion treatment device according to claim 3, characterized in that: The length of the top plate (5) is such that when the connecting plate (22) rotates and changes direction, it is always located directly above the hot-dip galvanizing tank (1) or the drying oven (6).
6. The metal structure anti-corrosion treatment device according to claim 5, characterized in that: The height of the top plate (5) is sufficient to allow the metal products on the hook (23) to be completely removed from the hot-dip galvanizing tank (1) or the drying oven (6).
7. The metal structure anti-corrosion treatment device according to claim 3, characterized in that: The size of the wrapping groove (16) matches the lifting path of the lead screw (21) and guide rod (24), so that the lead screw (21) and guide rod (24) are accommodated by the wrapping groove (16) when the cover (8) is closed.