A steel pipe-based outer wall visual inspection device

Abstract

The utility model discloses an outer wall visual inspection device based on steel pipe relates to steel pipe detection technical field, and this utility model discloses a support platform, the support platform top fixedly connected with transparent protective cover, transparent protective cover lateral wall center place rotationally connected with the pivot, the pivot outer ring fixedly connected with a plurality of mounting blocks, the mounting block front and rear end center symmetry fixedly connected with micro -electric push rod, micro -electric push rod output fixedly connected with arc plate, support platform back end fixedly connected with support frame, support frame inwall center place fixedly connected with bearing plate, support frame lateral wall between fixedly connected with the support plate of bearing plate near place, the inside of support plate is equipped with the guide groove, the utility model discloses a set of and fan spray head, and cooperate first motor, second motor and screw, can thus effectively remove the dust of steel pipe outer circle, and can provide good condition for subsequent detection, improve detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe inspection technology, specifically a visual inspection device for the outer wall of steel pipes. Background Technology

[0002] In core industrial sectors such as petrochemicals, oil and gas transportation, building structures, and machinery manufacturing, steel pipes are key components for fluid transportation and structural support. The quality of their outer walls directly determines the safety, reliability, and service life of equipment. During rolling, handling, storage, and pretreatment, steel pipe outer walls are prone to defects such as cracks, dents, scratches, and corrosion. If these defects are not detected in time, they may lead to major safety accidents such as fluid leakage and structural collapse. Therefore, efficient and accurate visual inspection of steel pipe outer walls is an indispensable key link in industrial production. When using visual inspection equipment to inspect steel pipes of the same length but different diameters, the lack of corresponding impurity cleaning components in the inspection equipment causes impurities attached to the steel pipes to obscure the true defects (iron filings, dust, and other impurities are easily left on the surface of the steel pipes after production), or to form shadow features similar to cracks and dents in the visual imaging, thereby reducing the accuracy of the equipment in inspecting steel pipes. In order to address the above problems, the inventors have proposed a visual inspection device based on the outer wall of steel pipes to solve the above problems. Utility Model Content

[0003] To address the problem that impurities adhering to steel pipes can obscure true defects, thereby reducing the accuracy of equipment in inspecting steel pipes, the purpose of this utility model is to provide a visual inspection device based on the outer wall of steel pipes.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a visual inspection device for the outer wall of a steel pipe, comprising a support platform, a transparent protective cover fixedly connected to the top of the support platform, a rotating shaft rotatably connected to the center of the side wall of the transparent protective cover, a plurality of mounting blocks fixedly connected to the outer ring of the rotating shaft, miniature electric actuators symmetrically fixedly connected to the front and rear ends of the mounting blocks, an arc-shaped plate fixedly connected to the output end of the miniature electric actuators, a support frame fixedly connected to the back end of the support platform, a load-bearing plate fixedly connected to the center of the inner wall of the support frame, and the side walls of the support frame close to the load-bearing plate. A support plate is fixedly connected to the load-bearing plate. A guide groove is provided inside the support plate. A blower head assembly is slidably connected inside the guide groove. A support rod is fixedly connected to the top of the blower head assembly. An auxiliary wheel is fixedly connected to the other end of the support rod. A CCD camera is installed at the bottom of the load-bearing plate and at the center above the rotating shaft. An annular plate is fixedly connected to the bottom of the load-bearing plate near the CCD camera. A protective shell is slidably inserted inside the annular plate. An L-shaped rod is fixedly connected to the top of the protective shell. The other end of the L-shaped rod passes through the load-bearing plate and is fixedly connected to a ramp, which cooperates with the auxiliary wheel.

[0005] Preferably, the mounting block is symmetrically and fixedly connected with auxiliary springs at its front and rear ends and on the outer ring of the miniature electric actuator, and the other end of the auxiliary spring is fixedly connected to the arc plate. A second motor is provided at the center of the side end of the transparent protective cover, and the output end of the second motor passes through the transparent protective cover and is fixedly connected to the rotating shaft.

[0006] Preferably, auxiliary plates are symmetrically fixedly connected to the front and rear ends of the protective shell near the top, a return spring is fixedly connected to the bottom end of the auxiliary plate, and the bottom end of the return spring is fixedly connected to the annular plate. A lead screw is rotatably connected between the side walls of the support frame and below the support plate, and the lead screw is threadedly rotatably connected to the blower head assembly.

[0007] Preferably, a first motor is provided on the side end of the support frame, and the output end of the first motor passes through the support frame and is fixedly connected to the lead screw. A fan is provided on the top of the transparent protective cover, and a connecting pipe is fixedly connected to one end of the fan, and the other end of the connecting pipe is fixedly connected to the air spray head assembly.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, by setting up a blower head assembly and a fan, and cooperating with a first motor, a second motor and a lead screw, dust on the outer ring of the steel pipe can be effectively removed, thereby providing good conditions for subsequent testing and improving testing accuracy; 2. In this utility model, when the blower head assembly moves to the CCD camera, the auxiliary wheel moves to the inclined platform. Then, with the cooperation of two return springs, the protective shell will move down to protect the CCD camera, thereby avoiding damage caused by direct blowing on the CCD camera and extending the service life of the equipment. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the support frame structure of this utility model.

[0012] Figure 3 This is a cross-sectional structural diagram of the load-bearing plate of this utility model.

[0013] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0014] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Support platform; 11. Transparent protective cover; 12. Fan; 2. Support frame; 21. Support plate; 22. Lead screw; 23. First motor; 24. Support rod; 25. Auxiliary wheel; 26. Air nozzle assembly; 3. Load-bearing plate; 31. CCD camera; 32. Circular plate; 33. Protective shell; 34. Auxiliary plate; 35. Return spring; 36. L-shaped rod; 37. Inclined platform; 4. Rotating shaft; 41. Second motor; 42. Mounting block; 43. Miniature electric actuator; 44. Arc plate; 45. Auxiliary spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-5As shown, this utility model provides a technical solution: a visual inspection device for the outer wall of a steel pipe, including a support platform 1, a transparent protective cover 11 fixedly connected to the top of the support platform 1, a rotating shaft 4 rotatably connected to the center of the side wall of the transparent protective cover 11, a plurality of mounting blocks 42 fixedly connected to the outer ring of the rotating shaft 4, miniature electric actuators 43 symmetrically fixedly connected to the front and rear ends of the mounting blocks 42, an arc-shaped plate 44 fixedly connected to the output end of the miniature electric actuators 43, a support frame 2 fixedly connected to the back end of the support platform 1, a load-bearing plate 3 fixedly connected to the center of the inner wall of the support frame 2, and a support plate 21 fixedly connected between the side walls of the support frame 2 near the load-bearing plate 3. A guide groove is opened inside the support plate 21, and the guide groove slides inside the guide groove. A blower head assembly 26 is connected, with a support rod 24 fixedly connected to the top of the blower head assembly 26. An auxiliary wheel 25 is fixedly connected to the other end of the support rod 24. A CCD camera 31 is positioned at the bottom of the load-bearing plate 3, above the center of the rotating shaft 4. A ring plate 32 is fixedly connected to the bottom of the load-bearing plate 3 near the CCD camera 31. A protective shell 33 is slidably inserted inside the ring plate 32. An L-shaped rod 36 is fixedly connected to the top of the protective shell 33. The other end of the L-shaped rod 36 passes through the load-bearing plate 3 and is fixedly connected to a ramp 37, which cooperates with the auxiliary wheel 25. A door is rotatably installed at the center of the side of the transparent protective cover 11 for placing steel pipes inside the transparent protective cover 11. The top of the transparent protective cover 11 is near... A top groove is provided near the center to facilitate the installation of detection components and the sliding placement of the blowing components. The installation angle of the blower head assembly 26 must meet the requirements for blowing air onto the steel pipe. The CCD camera 31 is located above the rotating shaft 4, and the blower head assembly 26 is close to the CCD camera 31. The CCD camera 31 is located inside the protective shell 33, and the diameter of the protective shell 33 is larger than that of the CCD camera 31 to achieve a protective effect. The L-shaped rod 36 is slidably connected to the load-bearing plate 3. In addition, the CCD camera 31 model can be R-VGA130-B. The fan 12, the first motor 23, the blower head assembly 26, the CCD camera 31, the return spring 35, the second motor 41, the miniature electric push rod 43, and the auxiliary spring 45 are... The equipment available to those skilled in the art is not structurally modified in this paper. Therefore, those skilled in the art are familiar with its working principle and can apply it skillfully based on their professional knowledge. Thus, this paper will not elaborate on it further. At the same time, this solution aims to protect the physical structure, but does not protect the circuit and software control. The proposed processing circuit is only to supplement the explanation of the feasibility and authenticity of this utility model. This utility model does not require protection of the algorithm and circuit technology. It is worth emphasizing that although this solution does not describe the electronic control program in detail, those skilled in the art can be familiar with and apply it based on their professional knowledge.

[0018] The front and rear ends of the mounting block 42 are symmetrically and fixedly connected to the outer ring of the miniature electric actuator 43 with auxiliary springs 45, and the other end of the auxiliary springs 45 is fixedly connected to the arc plate 44.

[0019] By adopting the above technical solution and setting an auxiliary spring 45, the arc plate 44 can be driven to lift and lower in conjunction with the miniature electric actuator 43.

[0020] A second motor 41 is provided at the center of the side end of the transparent protective cover 11. The output end of the second motor 41 passes through the transparent protective cover 11 and is fixedly connected to the rotating shaft 4.

[0021] By adopting the above technical solution, the second working motor 41 is started, thereby causing the fixedly connected rotating shaft 4 to drive the steel pipe to rotate, thus achieving comprehensive testing.

[0022] Auxiliary plates 34 are symmetrically fixedly connected to the front and rear ends of the protective shell 33 near the top. A return spring 35 is fixedly connected to the bottom end of the auxiliary plate 34, and the bottom end of the return spring 35 is fixedly connected to the annular plate 32.

[0023] By adopting the above technical solution and setting the auxiliary plate 34 in conjunction with the reset spring 35, the protective shell 33 can achieve the effect of lifting and lowering with the cooperation of the inclined platform 37 and the auxiliary wheel 25.

[0024] A lead screw 22 is rotatably connected between the side walls of the support frame 2 and below the support plate 21, and the lead screw 22 is threadedly rotatably connected to the blower head assembly 26.

[0025] By adopting the above technical solution, after the lead screw 22 rotates under the action of the first motor 23, the threaded rotating connection of the air nozzle assembly 26 can move horizontally (the air nozzle assembly 26 is mounted on the sliding block).

[0026] A first motor 23 is provided on the side of the support frame 2, and the output end of the first motor 23 passes through the support frame 2 and is fixedly connected to the lead screw 22.

[0027] By adopting the above technical solution, the first working motor 23 is started, which causes the fixedly connected lead screw 22 to rotate, thereby driving the air nozzle assembly 26 to move horizontally.

[0028] A fan 12 is installed at the top of the transparent protective cover 11. One end of the fan 12 is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the air nozzle assembly 26.

[0029] By adopting the above technical solution, the connecting pipe between the fan 12 and the nozzle assembly 26 is telescopic, which makes it convenient for the nozzle assembly 26 to be used when moving.

[0030] Working Principle: When using this device, the steel pipe to be inspected is first placed inside the transparent protective cover 11, and then the steel pipe is fitted over multiple sets of arc-shaped plates 44. Simultaneously, multiple miniature electric actuators 43 are activated, causing the fixedly connected arc-shaped plates 44 to clamp the inner wall of the steel pipe, thus positioning steel pipes of different diameters. Before inspecting the outer wall of the steel pipe, the first motor 23, fan 12, and second motor 41 are activated, causing the air nozzle assembly 26 to blow air onto the steel pipe outside the rotating shaft 4. The second motor 41 is adjusted... The rotation speed and fan power of motor 12 are used to remove dust from the outer ring of the steel pipe. After the first motor 23 is working, the fixedly connected screw 22 rotates, which allows the blower head assembly 26 to move horizontally and complete the cleaning of impurities from the steel pipe. When the blower head assembly 26 moves to the CCD camera 31, its auxiliary wheel 25 moves to the inclined platform 37. Then, with the cooperation of two return springs 35, the protective shell 33 moves down to protect the CCD camera 31 and prevent direct blowing on the CCD camera 31 from causing damage. After the impurities on the surface of the steel pipe are cleaned, the outer wall of the steel pipe can be inspected using a CCD camera 31. During the inspection, the second motor 41 is required to rotate the steel pipe so that the rotating shaft 4 can rotate the steel pipe to complete the comprehensive inspection. (After the CCD camera 31 scans and inspects, it sends the scanned image to a computer program for synthesis and processing to obtain an image of the unfolded cylindrical surface, thus completing the inspection.)

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A visual inspection device for the outer wall of a steel pipe, comprising a support platform (1), characterized in that: A transparent protective cover (11) is fixedly connected to the top of the support platform (1). A rotating shaft (4) is rotatably connected to the center of the side wall of the transparent protective cover (11). Several mounting blocks (42) are fixedly connected to the outer ring of the rotating shaft (4). Miniature electric actuators (43) are symmetrically fixedly connected to the front and rear ends of the mounting blocks (42). An arc plate (44) is fixedly connected to the output end of the miniature electric actuator (43). The support platform (1) is fixedly connected to the back end of the support frame (2), and a load-bearing plate (3) is fixedly connected to the center of the inner wall of the support frame (2). A support plate (21) is fixedly connected between the side walls of the support frame (2) near the load-bearing plate (3). A guide groove is provided inside the support plate (21), and a blower head assembly (26) is slidably connected inside the guide groove. A support rod (24) is fixedly connected to the top of the blower head assembly (26), and an auxiliary wheel (25) is fixedly connected to the other end of the support rod (24). A CCD camera (31) is installed at the bottom of the load-bearing plate (3) and at the center above the rotating shaft (4). A ring plate (32) is fixedly connected to the bottom of the load-bearing plate (3) near the CCD camera (31). A protective shell (33) is slidably inserted inside the ring plate (32). An L-shaped rod (36) is fixedly connected to the top of the protective shell (33). The other end of the L-shaped rod (36) passes through the load-bearing plate (3) and is fixedly connected to a ramp (37). The ramp (37) cooperates with the auxiliary wheel (25).

2. The visual inspection device for the outer wall of a steel pipe as described in claim 1, characterized in that, The mounting block (42) is symmetrically and fixedly connected to auxiliary springs (45) at its front and rear ends and on the outer ring of the micro electric push rod (43), and the other end of the auxiliary spring (45) is fixedly connected to the arc plate (44).

3. The visual inspection device for the outer wall of a steel pipe as described in claim 1, characterized in that, A second motor (41) is provided at the center of the side end of the transparent protective cover (11). The output end of the second motor (41) passes through the transparent protective cover (11) and is fixedly connected to the rotating shaft (4).

4. The visual inspection device for the outer wall of a steel pipe as described in claim 1, characterized in that, The protective shell (33) has auxiliary plates (34) symmetrically fixedly connected to the front and rear ends near the top. The bottom end of the auxiliary plate (34) is fixedly connected to a reset spring (35), and the bottom end of the reset spring (35) is fixedly connected to the annular plate (32).

5. The visual inspection device for the outer wall of a steel pipe as described in claim 1, characterized in that, A lead screw (22) is rotatably connected between the side walls of the support frame (2) and below the support plate (21), and the lead screw (22) is threadedly rotatably connected to the blower head assembly (26).

6. The visual inspection device for the outer wall of a steel pipe as described in claim 5, characterized in that, The support frame (2) is provided with a first motor (23) on its side end. The output end of the first motor (23) passes through the support frame (2) and is fixedly connected to the lead screw (22).

7. The visual inspection device for the outer wall of a steel pipe as described in claim 1, characterized in that, The transparent protective cover (11) is equipped with a fan (12) at the top. One end of the fan (12) is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the air nozzle assembly (26).

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