A surface inspection device for steel plate coating

Abstract

This utility model relates to the field of steel plate testing technology, specifically a surface testing device for steel plate coatings. It includes a base, a support fixedly connected to the base, and a testing component mounted on the support. The testing component includes a sliding rod and a spherical cover. The sliding rod is slidably connected to the support, and the spherical cover is fixedly connected to the bottom of the sliding rod. An adjustment component is mounted on the spherical cover, including connecting pipes. Multiple connecting pipes are fixedly connected to the spherical cover and communicate with the interior of the spherical cover. This utility model allows for the real-time addition of acidic or alkaline liquids during the testing process and can adjust the pH value of the liquid, thereby providing different control groups during the testing process and improving the accuracy of the test results.

Description

Technical Field

[0001] This utility model relates to the field of steel plate testing technology, specifically a surface testing device for steel plate coatings. Background Technology

[0002] Steel plate coating refers to the corrosion-resistant coating applied to the surface of steel plates. When steel plates are used in acidic or alkaline environments, the corrosion-resistant coating can prevent the steel plates from corroding and extend their service life.

[0003] Before steel plates coated with corrosion-resistant coatings are put into use, they need to be tested to check for cracks in the coating and its corrosion resistance. Currently, coating testing mainly involves applying acidic or alkaline liquids directly to the coating and measuring the rate of coating wear. However, the rate of coating wear is related to the strength of the acid or alkali. If a liquid with a fixed pH value is poured directly onto the coating, the liquid and coating will react, and the pH value will change during the reaction. Therefore, this cannot accurately reflect the corrosion resistance of the coating under different pH environments. Therefore, a new type of testing device is needed to solve this problem. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a surface inspection device for steel plate coatings, which can add acidic or alkaline liquids in real time during the inspection process and adjust the pH value of the liquids, thereby providing different control groups during the inspection process and improving the accuracy of the inspection results.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a surface inspection device for steel plate coating, including a base, a bracket fixedly connected to the base, a detection component provided on the bracket, the detection component including a slide rod and a spherical cover, the slide rod being slidably connected to the bracket, the spherical cover being fixedly connected to the bottom of the slide rod, an adjustment component provided on the spherical cover, the adjustment component including connecting pipes, a plurality of connecting pipes being fixedly connected to the spherical cover, and the plurality of connecting pipes communicating with the interior of the spherical cover.

[0006] Preferably, the detection assembly further includes a sealing ring and a spring. The sealing ring is fixedly connected to the bottom of the spherical cover, one end of the spring is fixedly connected to the spherical cover, and the other end of the spring is fixedly connected to the bracket.

[0007] Preferably, the detection component further includes air vents, which are formed on the slide bar and the spherical cover.

[0008] Preferably, the adjusting assembly further includes pistons and push rods, with the plurality of pistons slidably connected to the interiors of the plurality of connecting tubes, and the plurality of push rods fixedly connected to the plurality of pistons.

[0009] Preferably, the regulating assembly further includes one-way valves, and multiple one-way valves are disposed on the spherical cover, with the multiple one-way valves respectively located between the multiple connecting pipes and the interior of the spherical cover.

[0010] Preferably, the spherical cover and the connecting tube are both made of glass, the surfaces of the multiple connecting tubes are provided with scale lines, and the sealing ring is made of corrosion-resistant rubber.

[0011] Compared with the prior art, the significant advantages of this utility model are: Firstly, in this invention, the sliding rod can be pulled upwards to move the spherical cover upwards, placing the steel plate with the corrosion-resistant coating on the base. Then, the sliding rod is released, and the spring force causes the spherical cover to move downwards and press against the steel plate. The sealing ring ensures that there are no gaps between the spherical cover and the steel plate. Acid, alkali, distilled water, and test reagents are placed in multiple connecting pipes respectively. By pushing each push rod, the piston moves, allowing the various liquids to enter the spherical cover through the one-way valve, thereby contacting the coating on the surface of the steel plate and reacting.

[0012] Secondly, in this invention, during the reaction process, acid and alkali solutions are used to corrode the coating on the steel plate surface. The amount of different liquids can be quantitatively adjusted according to the scale lines on the connecting pipe surface. When the pH value of the liquid needs to be adjusted, it can be achieved by adding an appropriate amount of distilled water. When the corrosion-resistant coating on the steel plate surface is completely corroded, the steel plate itself will react with the acid or alkali solution, resulting in the presence of metal ions in the liquid. The detection reagent is used to react with the metal ions, causing the liquid to change color. When the liquid inside the spherical hood changes color, it indicates that the coating has been corroded through. By adjusting the pH value of the liquid during the detection process, it is possible to continuously increase the liquid to maintain the pH value during the reaction, or to provide a control group by changing the pH value of the liquid, thereby making the detection results more accurate throughout the entire detection process. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the detection component and the adjustment component in this utility model; Figure 4 This utility model Figure 3 The enlarged view of part A shown.

[0014] Explanation of reference numerals in the attached figures: 1. Base; 2. Bracket; 3. Detection component; 31. Slide rod; 32. Spherical cover; 33. Sealing ring; 34. Spring; 35. Air hole; 4. Adjustment component; 41. Connecting pipe; 42. Piston; 43. Push rod; 44. One-way valve. Detailed Implementation

[0015] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0016] This utility model provides an improved surface inspection device for steel plate coatings. The technical solution of this utility model is as follows: like Figures 1-4 As shown, a surface inspection device for steel plate coatings includes a base 1, a support 2 fixedly connected to the base 1, and a detection component 3 mounted on the support 2. The detection component 3 includes a sliding rod 31 and a spherical cover 32. The sliding rod 31 is slidably connected to the support 2, and the spherical cover 32 is fixedly connected to the bottom of the sliding rod 31. An adjustment component 4 is mounted on the spherical cover 32, and the adjustment component 4 includes connecting pipes 41. Multiple connecting pipes 41 are fixedly connected to the spherical cover 32 and communicate with the interior of the spherical cover 32. Different acids, alkalis, distilled water, and detection reagents can be placed in the multiple connecting pipes 41. The acids and alkalis are used to provide an acidic or alkaline environment to corrode the coating on the surface of the steel plate, while the distilled water is used to dilute the liquid to adjust the pH value of the acids and alkalis. When the coating on the surface of the steel plate is corroded through, the steel plate itself reacts with the acids and alkalis, causing metal ions to be generated in the liquid. The metal ions can react with the detection reagents to change color, thereby determining whether the coating has been corroded through by observing the color change of the liquid inside the spherical cover 32.

[0017] In this embodiment, the detection component 3 also includes a sealing ring 33 and a spring 34. The sealing ring 33 is fixedly connected to the bottom of the spherical cover 32, one end of the spring 34 is fixedly connected to the spherical cover 32, and the other end of the spring 34 is fixedly connected to the bracket 2. The elastic force of the spring 34 can make the spherical cover 32 firmly fasten to the surface of the steel plate, while the sealing ring 33 can prevent the liquid inside the spherical cover 32 from leaking out.

[0018] In this embodiment, the detection component 3 also includes an air hole 35, which is opened on the slide rod 31 and the spherical cover 32. When the liquid in the connecting pipe 41 is injected into the spherical cover 32, the air originally present in the spherical cover 32 will be discharged through the air hole 35.

[0019] In this embodiment, the adjustment component 4 also includes pistons 42 and push rods 43. Multiple pistons 42 are slidably connected to the inside of multiple connecting pipes 41, and multiple push rods 43 are fixedly connected to multiple pistons 42. By manually pushing the push rods 43, the pistons 42 can be moved to inject different liquids in the connecting pipes 41 into the spherical cover 32.

[0020] In this embodiment, the regulating component 4 also includes a one-way valve 44. Multiple one-way valves 44 are disposed on the spherical cover 32. The multiple one-way valves 44 are respectively located between the multiple connecting pipes 41 and the interior of the spherical cover 32. When the one-way valve 44 is provided, the liquid in the connecting pipe 41 needs a certain pressure to pass through the one-way valve 44 and enter the spherical cover 32. When the piston 42 does not move, the liquid in the connecting pipe 41 will not flow into the spherical cover 32 on its own.

[0021] In this embodiment, both the spherical cover 32 and the connecting tube 41 are made of glass. Therefore, the color change of the liquid inside the spherical cover 32 can be directly observed through the spherical cover 32. The surfaces of the multiple connecting tubes 41 are provided with scale lines, and the unit of the scale lines is milliliters, which is used to quantitatively adjust the amount of different liquids injected into the spherical cover 32. The sealing ring 33 is made of corrosion-resistant rubber.

[0022] The specific working method is as follows: First, pull the slide bar 31 upward, so that the slide bar 31 moves the spherical cover 32 upward, and place the steel plate with corrosion-resistant coating on the base 1. Then, release the slide bar 31. At this time, the elastic force of the spring 34 will cause the spherical cover 32 to move downward and press against the steel plate. The sealing ring 33 will ensure that there is no gap between the spherical cover 32 and the steel plate. Acid, alkali, distilled water and test reagent are respectively placed in multiple connecting pipes 41. By pushing each push rod 43, the piston 42 is moved, so that various liquids enter the spherical cover 32 through the one-way valve 44, thereby contacting the coating on the surface of the steel plate and reacting.

[0023] During the reaction, acid and alkali solutions are used to corrode the coating on the steel plate surface. The amount of different liquids can be quantitatively adjusted according to the scale lines on the surface of the connecting pipe 41. When it is necessary to adjust the pH value of the liquid, an appropriate amount of distilled water can be added. When the corrosion-resistant coating on the steel plate surface is completely corroded, the steel plate itself will react with the acid or alkali solution, resulting in the presence of metal ions in the liquid. The detection reagent is used to react with the metal ions, causing the liquid to change color. When the liquid inside the spherical cover 32 changes color, it indicates that the coating has been corroded through. By adjusting the pH value of the liquid during the detection process, it is possible to continuously increase the liquid to maintain the pH value during the reaction, or to provide a control group by changing the pH value of the liquid, thereby making the detection results more accurate throughout the entire detection process.

[0024] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A surface inspection device for steel plate coating, comprising a base (1), characterized in that: A bracket (2) is fixedly connected to the base (1). A detection component (3) is provided on the bracket (2). The detection component (3) includes a slide rod (31) and a spherical cover (32). The slide rod (31) is slidably connected to the bracket (2). The spherical cover (32) is fixedly connected to the bottom of the slide rod (31). An adjustment component (4) is provided on the spherical cover (32). The adjustment component (4) includes a connecting pipe (41). Multiple connecting pipes (41) are fixedly connected to the spherical cover (32). Multiple connecting pipes (41) communicate with the interior of the spherical cover (32).

2. The surface inspection device for steel plate coating according to claim 1, characterized in that: The detection component (3) also includes a sealing ring (33) and a spring (34). The sealing ring (33) is fixedly connected to the bottom of the spherical cover (32), one end of the spring (34) is fixedly connected to the spherical cover (32), and the other end of the spring (34) is fixedly connected to the bracket (2).

3. The surface inspection device for steel plate coating according to claim 2, characterized in that: The detection component (3) also includes an air hole (35), which is formed on the slide bar (31) and the spherical cover (32).

4. The surface inspection device for steel plate coating according to claim 1, characterized in that: The adjustment assembly (4) further includes pistons (42) and push rods (43). The multiple pistons (42) are slidably connected to the inside of multiple connecting pipes (41), and the multiple push rods (43) are fixedly connected to the multiple pistons (42).

5. A surface inspection device for steel plate coating according to claim 4, characterized in that: The regulating component (4) also includes a one-way valve (44), a plurality of the one-way valves (44) are disposed on the spherical cover (32), and the plurality of one-way valves (44) are respectively located between the interior of the plurality of connecting pipes (41) and the spherical cover (32).

6. The surface inspection device for steel plate coating according to claim 2, characterized in that: Both the spherical cover (32) and the connecting pipe (41) are made of glass. The surfaces of the multiple connecting pipes (41) are provided with scale lines. The sealing ring (33) is made of corrosion-resistant rubber.

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