Foldable support stand for pressure vessel inner surface inspection

Abstract

The utility model relates to pressure vessel technical field, and disclose a kind of foldable support support of pressure vessel inner surface detection, including workbench, the middle part of workbench is equipped with mounting hole, the bottom of mounting hole is fixedly connected with limit post, the surface of limit post is sleeved with folding support assembly, the surface of workbench is fixedly connected with two groups of locating plate on one side, the top of locating plate is fixedly connected with rotating assembly;The folding support assembly includes the bottom disc of the surface of limit post, the surface of bottom disc is slidably connected with multiple groups of support plate, the side of support plate is rotatably connected with multiple groups of limit plate;The foldable support support of this pressure vessel inner surface detection, by the setting of folding support assembly, reach the stability of effectively realizing the size support of different container inside, avoid the deviation of pressure vessel when detecting, and then guarantee the position stability of detection, improve inner surface detection precision.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, and in particular to a foldable support bracket for detecting the inner surface of a pressure vessel. Background Technology

[0002] The foldable support bracket for pressure vessel internal surface inspection is a tool used to inspect the internal structure, surface condition, corrosion, cracks, etc. of pressure vessels. With the widespread application of pressure vessels, especially in industries such as petrochemical, power, and nuclear energy, the safety requirements for containers are becoming increasingly stringent. As equipment that carries high-pressure media, the inner wall of pressure vessels is often affected by multiple factors such as high temperature, high pressure, and corrosive media, making it prone to problems such as cracks, corrosion, and wear. If these problems are not detected and repaired in time, they may lead to equipment failure or even accidents. Therefore, the inspection of the inner surface of pressure vessels is crucial, and regular inspection and maintenance are particularly important. How to conduct internal surface inspection effectively and conveniently has become an important issue.

[0003] A pressure vessel defect detection device disclosed in publication number CN210834779U includes a support base with a groove on its upper surface. A rotating mechanism is fixedly connected within the groove. Supports are movably connected to both sides of the support base, and support rods are fixedly connected to opposite sides of each support. A movable detection mechanism is fixedly connected to the upper surfaces of both support rods. The rotating mechanism includes a rotary motor fixedly connected to the sidewall of the groove. A first gear is fixedly connected to the output end of the rotary motor, and second gears mesh with both sides of the first gear. A rotating shaft is fixedly connected within the second gear, and both ends of the rotating shaft are rotatably connected to the sidewall of the groove via rolling bearings. Rotary cylinders are fixedly connected to the outer walls of both rotating shafts. This invention can comprehensively inspect the weld seams of pressure vessels, improving the inspection results and effectively reducing the possibility of safety accidents.

[0004] However, this pressure vessel defect detection device has the following drawbacks: In actual operation, due to the complex design of the detection device, it lacks sufficient flexibility when detecting pressure vessels of different specifications and shapes, which can lead to equipment instability and inability to be fixed, thereby affecting the detection accuracy. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this utility model is to provide a foldable support bracket for the inspection of the inner surface of pressure vessels, so as to solve the problem mentioned in the background art that, in actual operation, the complex design of the inspection device lacks sufficient flexibility when inspecting pressure vessels of different specifications and shapes, which leads to equipment instability and inability to be fixed, thereby affecting the inspection accuracy.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a foldable support bracket for inspecting the inner surface of a pressure vessel, comprising a worktable, a mounting hole in the middle of the worktable, a limiting post fixedly connected to the bottom of the mounting hole, a foldable support assembly sleeved on the surface of the limiting post, two sets of positioning plates fixedly connected to one side of the worktable surface, and a rotating assembly fixedly connected to the top of the positioning plates; the foldable support assembly includes a chassis sleeved on the surface of the limiting post, multiple sets of support plates slidably connected to the surface of the chassis, and multiple sets of limiting plates rotatably connected to one side of the support plates; the rotating assembly includes a cylinder fixedly connected to the top of the positioning plates, a rack fixedly connected to one end of the cylinder, and a gear meshing with one side of the rack.

[0007] As a further embodiment of this utility model, the surface of the chassis is provided with multiple sets of limiting grooves, and the bottom of the chassis is fixedly connected with a fixed column. By setting the limiting grooves, the sleeve can be driven to slide up and down along the surface of the limiting column through the annular groove at the top of the hydraulic rod, so that the limiting plate drives the support plate to slide back and forth along the limiting groove.

[0008] As a further embodiment of this utility model, a silicone plate is fixedly connected to one side of the support plate, and a connecting plate is fixedly connected to the other side of the support plate. The silicone plate allows the support plate to directly contact the inner wall of the pressure vessel when it is unfolded and fits against the inner surface of the pressure vessel, greatly increasing the friction between the support plate and the inner wall. This also prevents surface scratches and damage, making the support more stable and ensuring the stability of the testing equipment and the accuracy of the testing.

[0009] As a further embodiment of this utility model, the surface of the connecting plate is provided with multiple sets of limiting holes, the middle of the limiting holes is fixedly connected to a limiting shaft, and the bottom of the connecting plate is fixedly connected to a limiting wheel. By setting the limiting wheel, the sleeve slides up and down along the surface of the limiting post, and the limiting wheel controls the limiting plate to drive the support plate to slide smoothly back and forth along the limiting groove.

[0010] As a further embodiment of this utility model, a retaining plate is rotatably connected to the other end of the limiting plate, and a sleeve is fixedly connected to one side of the retaining plate. The sleeve allows the sleeve to slide up and down along the surface of the limiting post, thereby enabling the limiting plate to drive the support plate to slide back and forth along the limiting groove.

[0011] As a further embodiment of this utility model, a hydraulic rod is slidably connected to the inner wall of the limiting post, and an annular groove is provided at the top of the hydraulic rod. The annular groove allows the sleeve to slide up and down along the surface of the limiting post.

[0012] As a further embodiment of this utility model, a hydraulic cylinder is fixedly connected to the bottom of the hydraulic rod, and an mounting plate is fixedly connected to the bottom of the hydraulic cylinder. The hydraulic cylinder enables the hydraulic rod to extend and push the sleeve, thereby causing the support plate on the chassis to retract towards the center, folding and closing the support plate. The retraction of the hydraulic rod can pull the sleeve back to its original position, allowing the support plate to slide outward and unfold, so that the silicone plate on the support plate fits against the inner wall of the container.

[0013] As a further embodiment of this utility model, a bearing is fixedly connected to the inner wall of the mounting hole, and a reinforcing plate is fixedly connected to the bottom of the worktable. The bearing can avoid the resistance when the folding support assembly moves relative to the inner wall of the mounting hole, and at the same time make the folding support assembly adjust the angle more smoothly, thus extending the service life of the equipment.

[0014] (III) Beneficial Effects This utility model provides a foldable support bracket for inspecting the inner surface of a pressure vessel, which has the following advantages: 1. The foldable support bracket for pressure vessel internal surface inspection, through the setting of the foldable support assembly, when it is necessary to adapt to the size support inspection of different containers, the hydraulic cylinder is activated, driving the connected hydraulic rod to make precise linear reciprocating motion. Through the annular groove at the top of the hydraulic rod, the sleeve can be driven to slide up and down along the surface of the limiting post, so that the limiting plate drives the support plate to slide back and forth along the limiting groove. The extension of the hydraulic rod can push the sleeve, thereby driving the support plate on the chassis to retract towards the center, so that the support plate folds and closes. The retraction of the hydraulic rod can pull the sleeve to reset, allowing the support plate to slide outward and unfold, so that the silicone plate on the support plate fits against the inner wall of the container, thereby effectively achieving the stability of the size support of different containers, avoiding the pressure vessel from shifting during inspection, thus ensuring the stability of the inspection position and improving the accuracy of internal surface inspection.

[0015] 2. The foldable support bracket for inspecting the inner surface of the pressure vessel, through the setting of the rotating component, can flexibly adapt to the inspection of pressure vessels of various specifications and shapes when it is necessary to activate the cylinder. The piston inside the cylinder pushes the rack back and forth. The gear and the rack are connected by meshing, so that the rack moves linearly. The teeth of the rack mesh with the teeth of the gear, driving the gear to rotate, driving the fixed column to rotate, and then driving the foldable support component to rotate and adjust to the appropriate directional position. This achieves flexible adaptation to the inspection of pressure vessels of different specifications and shapes, reduces the difficulty of adaptive adjustment, reduces maintenance costs, and improves the work efficiency of inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the folding support component structure of this utility model; Figure 4 This is a schematic diagram of the rotating component structure of this utility model.

[0017] In the diagram: 1. Workbench; 2. Limiting post; 3. Folding support assembly; 301. Chassis; 302. Support plate; 303. Limiting plate; 4. Positioning plate; 5. Rotating assembly; 501. Cylinder; 502. Rack; 503. Gear; 6. Limiting groove; 7. Fixing post; 8. Silicone plate; 9. Connecting plate; 10. Limiting shaft; 11. Limiting wheel; 12. Fixing plate; 13. Sleeve; 14. Hydraulic rod; 15. Annular groove; 16. Hydraulic cylinder; 17. Mounting plate; 18. Bearing; 19. Reinforcing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a foldable support bracket for inspecting the inner surface of a pressure vessel, including a workbench 1, an installation hole in the middle of the workbench 1, a limiting post 2 fixedly connected to the bottom of the installation hole, a foldable support assembly 3 sleeved on the surface of the limiting post 2, two sets of positioning plates 4 fixedly connected to one side of the surface of the workbench 1, and a rotating assembly 5 fixedly connected to the top of the positioning plates 4; the foldable support assembly 3 includes a base plate 301 sleeved on the surface of the limiting post 2, multiple sets of support plates 302 slidably connected to the surface of the base plate 301, and multiple sets of limiting plates 303 rotatably connected to one side of the support plates 302; the rotating assembly 5 includes a cylinder 501 fixedly connected to the top of the positioning plates 4, a rack 502 fixedly connected to one end of the cylinder 501, and a gear 503 meshing with one side of the rack 502.

[0020] The chassis 301 has multiple sets of limiting grooves 6 on its surface and a fixed column 7 is fixedly connected to the bottom of the chassis 301. The limiting grooves 6 enable the sleeve 13 to slide up and down along the surface of the limiting column 2 through the annular groove 15 at the top of the hydraulic rod 14, so that the limiting plate 303 drives the support plate 302 to slide back and forth along the limiting grooves 6.

[0021] A silicone plate 8 is fixedly connected to one side of the support plate 302, and a connecting plate 9 is fixedly connected to the other side of the support plate 302. The silicone plate 8 allows the support plate 302 to be directly in contact with the inner wall of the pressure vessel when it is unfolded and fits against the inner surface of the pressure vessel. This significantly increases the friction between the support plate 302 and the inner wall, while preventing surface scratches and damage, making the support more stable, and thus ensuring the stability of the testing equipment and the accuracy of the testing.

[0022] Multiple sets of limiting holes are opened on the surface of the connecting plate 9. A limiting shaft 10 is fixedly connected to the middle of the limiting hole, and a limiting wheel 11 is fixedly connected to the bottom of the connecting plate 9. The limiting wheel 11 enables the sleeve 13 to slide up and down along the surface of the limiting post 2. The limiting wheel 11 controls the limiting plate 303 to drive the support plate 302 to slide smoothly back and forth along the limiting groove 6.

[0023] The other end of the limiting plate 303 is rotatably connected to the fixing plate 12. A sleeve 13 is fixedly connected to one side of the fixing plate 12. The sleeve 13 allows the sleeve 13 to slide up and down along the surface of the limiting post 2, so that the limiting plate 303 drives the support plate 302 to slide back and forth along the limiting groove 6.

[0024] A hydraulic rod 14 is slidably connected to the inner wall of the limiting post 2. An annular groove 15 is provided on the top of the hydraulic rod 14. The annular groove 15 allows the sleeve 13 to slide up and down along the surface of the limiting post 2.

[0025] A hydraulic cylinder 16 is fixedly connected to the bottom of the hydraulic rod 14, and a mounting plate 17 is fixedly connected to the bottom of the hydraulic cylinder 16. The hydraulic cylinder 16 enables the hydraulic rod 14 to extend and push the sleeve 13, thereby causing the support plate 302 on the chassis 301 to retract towards the center, so that the support plate 302 folds and closes. When the hydraulic rod 14 retracts, it can pull the sleeve 13 to reset, allowing the support plate 302 to slide outward and unfold, so that the silicone plate 8 on the support plate 302 fits against the inner wall of the container.

[0026] A bearing 18 is fixedly connected to the inner wall of the mounting hole, and a reinforcing plate 19 is fixedly connected to the bottom of the worktable 1. The bearing 18 can avoid the resistance when the folding support assembly 3 moves relative to the inner wall of the mounting hole, and at the same time make the folding support assembly 3 adjust the angle more smoothly, thus extending the service life of the equipment.

[0027] In this invention, the working steps of the device are as follows: First step: When it is necessary to adapt to the size support test inside different containers, start the hydraulic cylinder 16 and drive the connected hydraulic rod 14 to make precise linear reciprocating motion. Through the annular groove 15 at the top of the hydraulic rod 14, the sleeve 13 can be driven to slide up and down along the surface of the limiting post 2, so that the limiting plate 303 drives the support plate 302 to slide back and forth along the limiting groove 6. Second step: The hydraulic rod 14 extends to push the sleeve 13, which in turn drives the support plate 302 on the chassis 301 to retract towards the center, so that the support plate 302 folds and closes. The hydraulic rod 14 retracts, which can pull the sleeve 13 to reset, allowing the support plate 302 to slide outward and unfold, so that the silicone plate 8 on the support plate 302 fits against the inner wall of the container. The third step: When it is necessary to flexibly adapt to the testing of pressure vessels of various specifications and shapes, cylinder 501 is activated. The piston inside cylinder 501 drives rack 502 to move back and forth. Gear 503 is meshed with rack 502, causing rack 502 to move linearly. The teeth of rack 502 mesh with the teeth of gear 503, causing gear 503 to rotate, which in turn causes fixed column 7 to rotate, thereby causing folding support assembly 3 to rotate and be adjusted to the appropriate directional position. It should be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable support bracket for inspecting the inner surface of a pressure vessel, comprising a worktable (1), characterized in that: The workbench (1) has an installation hole in the middle, and a limiting post (2) is fixedly connected to the bottom of the installation hole. A folding support assembly (3) is sleeved on the surface of the limiting post (2). Two sets of positioning plates (4) are fixedly connected to one side of the surface of the workbench (1), and a rotating assembly (5) is fixedly connected to the top of the positioning plate (4). The folding support assembly (3) includes a chassis (301) sleeved on the surface of the limiting post (2), and multiple sets of support plates (302) are slidably connected to the surface of the chassis (301). Multiple sets of limiting plates (303) are rotatably connected to one side of the support plate (302). The rotating assembly (5) includes a cylinder (501) fixedly connected to the top of the positioning plate (4), a rack (502) fixedly connected to one end of the cylinder (501), and a gear (503) meshing with one side of the rack (502).

2. The foldable support bracket for detecting the inner surface of a pressure vessel according to claim 1, characterized in that: The surface of the chassis (301) is provided with multiple sets of limiting grooves (6), and the bottom of the chassis (301) is fixedly connected with a fixing column (7).

3. The foldable support bracket for detecting the inner surface of a pressure vessel according to claim 1, characterized in that: A silicone plate (8) is fixedly connected to one side of the support plate (302), and a connecting plate (9) is fixedly connected to the other side of the support plate (302).

4. The foldable support bracket for detecting the inner surface of a pressure vessel according to claim 3, characterized in that: The surface of the connecting plate (9) has multiple sets of limiting holes, and a limiting shaft (10) is fixedly connected to the middle of the limiting holes. A limiting wheel (11) is fixedly connected to the bottom of the connecting plate (9).

5. A foldable support bracket for detecting the inner surface of a pressure vessel according to claim 1, characterized in that: The other end of the limiting plate (303) is rotatably connected to a retaining plate (12), and a sleeve (13) is fixedly connected to one side of the retaining plate (12).

6. The foldable support bracket for detecting the inner surface of a pressure vessel according to claim 1, characterized in that: The inner wall of the limiting post (2) is slidably connected to a hydraulic rod (14), and the top of the hydraulic rod (14) is provided with an annular groove (15).

7. A foldable support bracket for detecting the inner surface of a pressure vessel according to claim 6, characterized in that: A hydraulic cylinder (16) is fixedly connected to the bottom of the hydraulic rod (14), and a mounting plate (17) is fixedly connected to the bottom of the hydraulic cylinder (16).

8. A foldable support bracket for detecting the inner surface of a pressure vessel according to claim 1, characterized in that: A bearing (18) is fixedly connected to the inner wall of the mounting hole, and a reinforcing plate (19) is fixedly connected to the bottom of the workbench (1).

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