A method and apparatus for detecting a coating on a steel structure

Abstract

The application discloses a steel structure coating detection method and a detection device thereof, which comprises a vertical plate installed on a moving frame, a moving plate installed on the vertical plate and sliding in the vertical direction, a lifting assembly arranged on the moving frame and used for driving the moving plate to lift, a sliding plate installed on the moving plate and horizontally sliding, and a bearing surface of the sliding plate is provided with a detection head connected with a detection host, and a driving assembly arranged on the moving plate and used for driving the sliding plate to horizontally move so as to drive the detection head to contact with a to-be-detected object.

Description

Technical Field

[0001] This invention relates to the field of coating inspection, and in particular to a method for inspecting coatings on steel structures. Background Technology

[0002] In daily life, we often see steel structure buildings, such as some steel structure factories. In order to extend the service life of these buildings, rust-proof layers are usually applied to the exposed steel frames, or stainless steel is used. Currently, after coating the steel structure, the thickness of these coatings needs to be tested to determine whether they are up to standard.

[0003] The most popular method for detecting the thickness of steel structure coatings is to use a coating thickness gauge. A traditional coating thickness gauge mainly consists of a main unit, a connecting cable, and a detection probe. When the thickness needs to be measured, the detection probe is simply placed against the surface of the steel structure. At this time, the detection probe will transmit the detected data to the main unit through the connecting cable for easy reading by the staff.

[0004] In view of the current technological situation, the inventors believe that when testing the thickness of steel structure coatings at relatively high positions, such as those exceeding the height of a person, a ladder is often required, which makes the testing process more complicated and poses certain safety hazards. Further improvements are needed. Summary of the Invention

[0005] The purpose of this application is to provide a method and apparatus for testing steel structure coatings, which can increase the testing range of steel structure coatings and improve work efficiency.

[0006] This application provides a steel structure coating inspection device, which adopts the following technical solution:

[0007] A steel structure coating inspection device includes: a vertical plate mounted on a movable frame; a movable plate slidably mounted on the vertical plate; a lifting assembly mounted on the movable frame for driving the movable plate to rise and fall; a sliding plate slidably mounted on the movable plate with a detection head connected to the inspection host mounted on its bearing surface; and a driving assembly mounted on the movable plate for driving the sliding plate to move horizontally so that the detection head contacts the object to be tested.

[0008] By adopting the above technical solution, the lifting component can drive the slide plate to rise to a predetermined height. Under the drive of the component, the detection head can be brought into contact with the predetermined position of the steel structure, thus making it easy to detect the coating thickness of the steel structure. This solution can effectively increase the detection range of the steel structure coating and improve the overall work efficiency.

[0009] This application further provides that: a U-shaped plate with an upward opening is installed on the bearing surface of the movable plate, and parallel support strips are installed horizontally at both ends of the U-shaped plate. Each support strip is equipped with a mounting seat, and a rotating rod is rotatably installed between the mounting seats. A rotating plate for supporting the detection head is installed on the rotating rod, and a first driving component for driving the rotating rod to rotate is also installed on the mounting seat.

[0010] By adopting the above technical solution, the first driving component can drive the rotating plate to rotate when it is turned on, so that the detection head is facing the position to be tested on the steel structure, thereby increasing the applicability of the detection head. Then, the driving component drives the moving plate to move, so that the detection head can abut against the predetermined position on the steel structure to realize the coating thickness detection of the object to be tested.

[0011] This application further provides that: a support column with its bottom end rotatably mounted on a movable plate is fixed to the bottom of the U-shaped plate, and a second driving component for driving the support column to rotate is also provided on the movable plate.

[0012] By adopting the above technical solution, the second driving component can drive the entire support column to rotate when needed. During the rotation of the support column, the detection head can be driven to rotate around the support column, thereby further increasing the applicability of the detection head.

[0013] This application further includes: a fixed cylinder with its extension direction perpendicular to the length direction of the rotating rod is mounted on the rotating plate; a sliding rod for mounting the detection head is slidably mounted on the inner wall of the fixed cylinder at the end away from the vertical plate; a push rod is slidably mounted on the inner wall of the fixed cylinder at the end away from the detection head; a connecting spring is provided between the push rod and the sliding rod to connect the two; and a third driving component is also mounted on the rotating plate to drive the push rod to slide along the fixed cylinder so that the sliding rod also slides.

[0014] By adopting the above technical solution, the third driving component can drive the push rod to slide inside the fixed cylinder when it is turned on. During the sliding process of the push rod, the detection head on the sliding rod will also extend and retract through the connecting spring to better contact the test position of the steel structure.

[0015] This application further includes: an adsorption cylinder parallel to the fixed cylinder is mounted on the rotating plate; a suction cup is mounted on the end of the adsorption cylinder away from the vertical plate; an air injection cylinder connected to the end of the adsorption cylinder away from the suction cup is mounted on the rotating plate; a piston column is movably disposed inside the air injection cylinder; and a transmission assembly for connecting the piston column and the push rod is provided on the rotating plate. When the third driving component is activated, the piston column can be driven to move in the opposite direction to the push rod through the transmission assembly.

[0016] By adopting the above technical solution, the third driving component can not only drive the detection head to extend and retract when it is turned on, but also drive the piston rod to slide inside the air injection cylinder through the transmission component. During the sliding process, the piston rod will drive the suction cup to adhere to the surface of the steel structure through the suction cylinder, thereby increasing the stability of the detection head during operation and improving the accuracy of the detection data.

[0017] This application further provides that: the transmission assembly includes: a rotating shaft mounted on a rotating plate parallel to the rotating rod; a connecting rod with its body fixed on the rotating shaft; and a piston rod with one end hinged to the end of the connecting rod and the other end hinged to the piston rod, wherein the end of the connecting rod away from the piston rod is movably sleeved on the push rod via an annular block, and the outer side of the push rod is threaded with a limiting ring for limiting the annular block.

[0018] By adopting the above technical solution, when the third driving component drives the push rod to slide, it will also drive the connecting rod to rotate. During the rotation of the connecting rod, the piston rod will drive the piston column to slide, and the direction of the piston column sliding is opposite to the direction of the push rod sliding. This allows the piston column to evacuate air from the air injection cylinder when the detection head is pressed against the steel structure, so that the suction cup can be firmly adsorbed on the surface of the steel structure. This solution is ingeniously designed and achieves outstanding results.

[0019] This application further specifies that the end of the adsorption cylinder furthest from the suction cup is threadedly connected to the air injection cylinder.

[0020] By adopting the above technical solution, when the test position of the steel structure and the adsorption position are not on the same plane, the distance between the suction cup and the air injection cylinder can be adjusted by rotating the adsorption cylinder to better adapt to actual needs and further increase the applicability of this application.

[0021] This application further provides that: the support bar is slidably mounted with a sliding plate for supporting the mounting base along its length, and the support bar is provided with a fourth driving member for driving the sliding plate to slide.

[0022] By adopting the above technical solution, the fourth driving component can drive the sliding plate to slide when needed, so that the detection head on the sliding plate can more accurately collide with the predetermined position of the object to be tested.

[0023] This application further provides that: the sliding plate is equipped with an extension cylinder parallel to the fixed cylinder, the extension cylinder is threadedly connected to an extension rod, and a magnetic block for adsorbing steel structures is installed at the end of the extension rod away from the extension cylinder.

[0024] By adopting the above technical solution, when the surface of the steel structure is uneven, the magnetic block will come into contact with the surface of the steel structure during the sliding process of the sliding plate driven by the fourth driving component. The adsorption effect of the magnetic block on the steel structure can also improve the stability of the detection head during operation. At the same time, when needed, the distance between the magnetic block and the extension cylinder can be adjusted by rotating the extension rod to further increase the applicable range.

[0025] This application also provides a method for inspecting coatings on steel structures, comprising the following steps:

[0026] Step 1: Move the mobile frame to the predetermined position and activate the lifting component to move the mobile plate to the predetermined height that matches the object to be tested;

[0027] Step 2: Turn on the drive assembly and / or the first drive unit and / or the second drive unit so that the detection head is aligned with the predetermined position of the object to be tested;

[0028] Step 3: Activate the fourth driving component so that the detection head comes into contact with the predetermined position of the object to be tested. At the same time, the magnetic block and the suction cup will also come into contact with the surface of the object to be tested.

[0029] Step 4: Read and record the test data through the detection host.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] By setting up a lifting component and a driving component, the two work together to make the detection head collide with the predetermined position of the steel structure to adapt to the test position at different heights. The fourth driving component can further increase the movement accuracy of the detection head, thereby improving the accuracy of the detection data.

[0032] By incorporating a suction cup that can be linked with the detection head, the suction cup can adhere to the steel structure using its suction force when the detection head comes into contact with it, thereby improving the stability of the detection head's operation. The magnetic block further enhances the stability of the detection head's operation based on the suction cup. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the component structure mounted on the rotating plate in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the internal structure of the fixed cylinder and the air injection cylinder in the embodiments of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Movable frame; 10. Vertical plate; 11. Movable plate; 2. Slide plate; 20. Detection head; 3. U-shaped plate; 30. Support column; 31. Support strip plate; 32. Mounting base; 33. Rotating rod; 34. Rotating plate; 35. Sliding plate; 36. Extension cylinder; 37. Extension rod; 38. Magnetic block; 4. Fixed cylinder; 41. Sliding rod; 42. Push rod; 43. Connecting spring; 5. Adsorption cylinder; 51. Suction cup; 52. Air injection cylinder; 53. Piston column; 54. Connecting rod; 55. Piston rod; 56. Annular block; 57. Limiting ring. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] This application discloses a steel structure coating inspection device, such as... Figure 1 and Figure 2 As shown, it includes: a movable frame 1, with casters installed at the bottom of the movable frame 1, a vertical plate 10 installed on the movable frame 1, a movable plate 11 slidably installed on the vertical plate 10 in the vertical direction, a sliding plate 2 slidably installed on the sliding plate 11, a detection head 20 installed on the sliding plate 2, and the detection head 20 is connected to the detection host via a connecting cable. At the same time, a drive assembly is also installed on the sliding plate 11 to drive the sliding plate 2 to move. In addition, a lifting assembly is installed on the movable frame 1 to drive the sliding plate 11 to lift.

[0039] When it is necessary to test the coating thickness of a steel structure, the lifting assembly can be activated to drive the moving plate 11 to rise to a predetermined height. Then, the drive assembly can be activated to drive the sliding plate 2 to move the detection head 20 toward the test position of the steel structure until the detection head 20 comes into contact with the test position of the steel structure. This solution can be adapted to test positions of different heights of steel structures, has a wide range of applications, and has obvious effects.

[0040] In this embodiment, an upward-opening U-shaped plate 3 is installed on the bearing surface of the movable plate 11. Parallel support strips 31 are horizontally installed at both ends of the U-shaped plate 3. A sliding plate 35 is slidably installed on the support strips 31 along its length. A fourth driving member is also provided on the support strips 31 to drive the sliding plate 35 to slide. Simultaneously, a mounting seat 32 is installed on each sliding plate 35, with two mounting seats 32 symmetrically arranged. A rotating rod 33 (e.g., a rotating rod) is rotatably installed between the mounting seats 32. Figure 3 As shown, a rotating plate 34 is mounted on the rotating rod 33, and the detection head 20 is mounted on the rotating plate 34. In addition, a first driving member for driving the rotating rod 33 to rotate is also mounted on the mounting base 32.

[0041] When the fourth driving component is activated, the distance between the detection head 20 and the object to be tested can be further adjusted based on the driving component to improve the detection accuracy. When the first driving component is activated, it can drive the rotating rod 33 to rotate. During the rotation of the rotating rod 33, it can drive the rotating plate 34 to rotate together, thereby making it easy to adjust the detection angle of the detection head 20 to adapt to more actual situations and increase the applicability of this application.

[0042] To further expand the applicability of the detection head 20, in this embodiment, a support column 30 with its bottom end rotatably mounted on the bearing surface of the movable plate 11 is fixed at the bottom of the U-shaped plate 3. A second driving component is also installed on the movable plate 11. The second driving component is used to drive the support column 30 to rotate. When the support column 30 rotates, it can drive the entire detection head 20 to rotate as well. This design can easily increase the detection range of the detection head 20.

[0043] In this embodiment, a fixed cylinder 4 extending perpendicularly to the length direction of the rotating rod 33 is also installed on the rotating plate 34. A sliding rod 41 is slidably installed on the inner wall of the fixed cylinder 4 at the end away from the vertical plate 10. It should be noted that the detection head 20 is installed on the outer end of the sliding rod 41, and a push rod 42 is slidably installed on the inner wall of the fixed cylinder 4 at the end away from the detection head 20. A connecting spring 43 (e.g., a spring connecting the two) is installed between the inner end of the push rod 42 and the inner end of the sliding rod 41. Figure 3 As shown in the figure, a third driving component is also installed on the rotating plate 34. The third driving component is used to drive the push rod 42 to slide. During the sliding process, the push rod 42 will drive the sliding rod 41 to slide further through the connecting spring 43, so that the detection head 20 will press further against the surface of the object to be tested, thereby improving the stability of the detection data.

[0044] like Figure 2 and Figure 3 As shown, considering that the detection head 20 may shake in practice, in order to improve the stability of the detection head 20 during operation, in this embodiment, an adsorption cylinder 5 parallel to the fixed cylinder 4 is installed on the rotating plate 34, and a suction cup 51 is installed at the end of the adsorption cylinder 5 away from the vertical plate 10. The adsorption cylinder 5 is connected to the suction cup 51. An air injection cylinder 52 connected to the end of the adsorption cylinder 5 away from the suction cup 51 is installed on the rotating plate 34. A piston column 53 is movably arranged inside the air injection cylinder 52. In addition, a transmission assembly for connecting the piston column 53 and the push rod 42 is provided on the rotating plate 34.

[0045] When the detection head 20 approaches the predetermined position of the object to be tested, the third driving component can be activated. The third driving component can drive the detection head 20 to press against the surface of the object to be tested through the push rod 42. At the same time, during the sliding process of the push rod 42, the piston column 53 will also slide along with it through the transmission component. It should be noted that the sliding direction of the piston column 53 is perpendicular to the sliding direction of the push rod 42. The advantage of this setting is that when the push rod 42 pushes the detection head 20 to press against the object to be tested, the piston column 53 will evacuate the suction cup 51 through the suction cylinder 5, so that the suction cup 51 can adhere firmly to the surface of the object to be tested while adhering to it, thus ensuring the stability of the detection head 20 during operation.

[0046] In this embodiment, the transmission assembly includes: a rotating shaft mounted on a rotating plate 34 and parallel to the rotating rod 33; a connecting rod 54 fixed on the rotating shaft; the rotating shaft and the connecting rod 54 being fixed together; a piston rod 55 hinged to the end of the connecting rod 54 near the piston column 53; the piston rod 55 and the piston column 53 being hinged together; an annular block 56 fixed to the end of the connecting rod 54 away from the piston rod 55; and the annular block 56 being movably sleeved on the push rod 42. To limit the sliding range of the annular block 56, two limiting rings 57 are threadedly connected to the outside of the push rod 42. When the third driving member drives the push rod 42 to move towards the detection head 20, it will drive the connecting rod 54 to rotate. When the connecting rod 54 rotates, it can pull the piston column 53 outward within the air injection cylinder 52 through the piston rod 55, so that the suction cup 51 is firmly adsorbed onto the surface of the object to be tested.

[0047] Considering that in practice, the distance between the suction cup 51 and the air injection cylinder 52 sometimes needs to be adjusted, and the suction cup 51 also needs to be disassembled and replaced, in this embodiment, the end of the adsorption cylinder 5 away from the suction cup 51 is threadedly connected to the air injection cylinder 52, and the suction cup 51 is also threadedly connected to the adsorption cylinder 5.

[0048] In addition, an extension cylinder 36 parallel to the fixed cylinder 4 is installed on the sliding plate 35. An extension rod 37 is threaded to the end of the extension cylinder 36. A magnetic block 38 is installed at the end of the extension rod 37 away from the extension cylinder 36. It should be noted that the magnetic block 38 can be attracted to the steel structure. The advantage of this arrangement is that the magnetic block 38 can further improve the working stability of the detection head 20 based on the suction cup 51. At the same time, the magnetic block 38 can also adapt to the uneven surface of the steel structure relative to the suction cup 51, further increasing the applicability of this application.

[0049] In this embodiment, it should be noted that the lifting assembly, the driving assembly, the third driving component, and the fourth driving component can all be common types of cylinders, hydraulic cylinders, or rodless cylinders, while the first driving component and the second driving component can both be servo motors or servo motors with gear sets. Since these are all common, they will not be described in detail here.

[0050] This embodiment also provides a method for detecting coatings on steel structures, including the following steps:

[0051] Step 1: Move the mobile frame 1 to the predetermined position and activate the lifting assembly so that the mobile plate 11 moves to a predetermined height that matches the object to be measured;

[0052] Step 2: Activate the drive assembly and / or the first drive unit and / or the second drive unit so that the detection head 20 is positioned at the predetermined location of the object to be tested;

[0053] Step 3: Activate the fourth driving component so that the detection head 20 abuts against the predetermined position of the object to be tested. At the same time, the magnetic block 38 and the suction cup 51 will also come into contact with the surface of the object to be tested.

[0054] Step 4: Read and record the test data through the detection host.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel structure coating inspection device, characterized in that, include: Vertical plate (10) installed on the mobile frame (1); A movable plate (11) is slidably mounted on a vertical plate (10) along the vertical direction; A lifting assembly installed on the movable frame (1) for driving the movable plate (11) to rise and fall; A sliding plate (2) is horizontally mounted on a movable plate (11) and has a detection head (20) connected to the detection host mounted on its bearing surface. And a drive assembly set on the moving plate (11) for driving the slide plate (2) to move horizontally so that the detection head (20) comes into contact with the object to be tested; The moving plate (11) has an upward-facing U-shaped plate (3) mounted on its bearing surface. Parallel support strips (31) are mounted horizontally at both ends of the U-shaped plate (3). Mounting seats (32) are mounted on each of the support strips (31). Rotating rods (33) are rotatably mounted between the mounting seats (32). A rotating plate (34) for supporting the detection head (20) is mounted on the rotating rod (33). A first driving component for driving the rotating rod (33) to rotate is also mounted on the mounting seat (32). An adsorption cylinder (5) parallel to the fixed cylinder (4) is installed on the rotating plate (34). A suction cup (51) is installed at the end of the adsorption cylinder (5) away from the vertical plate (10). An air injection cylinder (52) connected to the end of the adsorption cylinder (5) away from the suction cup (51) is installed on the rotating plate (34). A piston column (53) is movably arranged inside the air injection cylinder (52). A transmission assembly for connecting the piston column (53) and the push rod (42) is provided on the rotating plate (34). When the third driving component is turned on, the piston column (53) can be driven to move in the opposite direction of the push rod (42) through the transmission assembly. The transmission assembly includes: a rotating shaft mounted on a rotating plate (34) and parallel to the rotating rod (33); a connecting rod (54) with its body fixed on the rotating shaft; and a piston rod (55) with one end hinged to the end of the connecting rod (54) and the other end hinged to the piston column (53), wherein the end of the connecting rod (54) away from the piston rod (55) is movably sleeved on the push rod (42) through an annular block (56), and the outer side of the push rod (42) is threaded with a limiting ring (57) for limiting the annular block (56). A fixed cylinder (4) with an extension direction perpendicular to the length direction of the rotating rod (33) is installed on the rotating plate (34). A sliding rod (41) for mounting the detection head (20) is slidably installed on the inner wall of the fixed cylinder (4) away from the vertical plate (10). A push rod (42) is slidably installed on the inner wall of the fixed cylinder (4) away from the detection head (20). A connecting spring (43) for connecting the push rod (42) and the sliding rod (41) is provided between the push rod (42) and the sliding rod (41). A third driving member for driving the push rod (42) to slide along the fixed cylinder (4) so ​​that the sliding rod (41) also slides is also installed on the rotating plate (34). The support bar (31) is slidably mounted with a sliding plate (35) for supporting the mounting base (32) along its length direction, and the support bar (31) is provided with a fourth driving member for driving the sliding plate (35) to slide. The sliding plate (35) is equipped with an extension tube (36) parallel to the fixed tube (4). The extension tube (36) is threadedly connected to an extension rod (37). A magnetic block (38) for adsorbing steel structures is installed at the end of the extension rod (37) away from the extension tube (36).

2. The steel structure coating inspection device according to claim 1, characterized in that, The bottom of the U-shaped plate (3) is fixed with a support column (30) that is rotatably mounted on the movable plate (11). The movable plate (11) is also provided with a second driving component for driving the support column (30) to rotate.

3. The steel structure coating inspection device according to claim 1, characterized in that, The end of the adsorption cylinder (5) away from the suction cup (51) is threadedly connected to the air injection cylinder (52).

4. A method for detecting coatings on steel structures, comprising the detection apparatus according to claim 2, characterized in that, Includes the following steps: Step 1: Move the mobile frame (1) to the predetermined position and turn on the lifting assembly so that the mobile plate (11) moves to the predetermined height that matches the object to be tested; Step 2: Turn on the drive assembly and / or the first drive unit and / or the second drive unit so that the detection head (20) is positioned at the predetermined position of the object to be tested; Step 3: Activate the fourth driving component so that the detection head (20) abuts against the predetermined position of the object to be tested. At the same time, the magnetic block (38) and the suction cup (51) will also come into contact with the surface of the object to be tested. Step 4: Read and record the test data through the detection host.

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