A cart for pipeline internal inspection detection

Abstract

This utility model relates to the field of manual trolley technology, and more particularly to a trolley for internal pipeline flaw detection. It includes a first placement frame with a handle fixed to one end. A second placement frame is slidably connected to the inner side of the first placement frame away from the handle. Both the first and second placement frames are equipped with fixing mechanisms for securing the detection equipment. Telescopic rods are fixed to both sides of the bottom of the first placement frame near the handle. This utility model provides a trolley for internal pipeline flaw detection. Through the fixing mechanisms, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping due to vibration or tilting during movement or trolley travel. The locking mechanism prevents the knob from accidentally turning due to trolley shaking, bumps, or slight external contact, thus preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed to the trolley, guaranteeing smooth inspection work.

Description

Technical Field

[0001] This utility model relates to the field of manual trolley technology, and in particular to a trolley for internal pipeline flaw detection. Background Technology

[0002] In the quality control of chemical plant construction and pipeline laying, for pipelines with a diameter greater than 600mm and a wall thickness greater than 10mm, the central radiography method is often used for non-destructive testing of metal welds. During the process of transporting the X-ray machine to the inspection location inside the pipeline via a trolley, the pipeline environment is complex, and the trolley will experience movement, turns, and potential bumps. Without a clamping mechanism to secure it, the X-ray machine is prone to sliding on the trolley or even falling off.

[0003] For example, Chinese utility model patent (CN206192921 U) discloses a trolley for internal pipeline flaw detection. This utility model mainly solves the technical problem of the inconvenience of manually transporting X-ray machines in existing pipeline laying quality monitoring. The platform for placing the X-ray machine in this utility model is arc-shaped, making it easy to fix and preventing slippage; the four support legs are telescopic, facilitating the use of pipes of different diameters; scales are provided on the four support legs, which helps to accurately adjust the height of the four support legs; by placing the X-ray machine on the arc-shaped crossbeam, the X-ray machine can be easily transported to the corresponding position inside the pipeline.

[0004] When using the above technology, the following technical problems were found in the existing technology: the pipeline environment is complex, the trolley will experience movement, turning, and possible bumps, and the X-ray machine is prone to sliding or even falling off the trolley. Therefore, we designed a trolley for internal pipeline flaw detection to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a trolley for internal pipeline flaw detection to address the aforementioned technical problems. Through the fixing mechanism, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping off due to vibration or tilting during movement or trolley travel. The locking mechanism can prevent the knob from being accidentally turned due to trolley shaking, bumping, or slight external contact, thereby preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed to the trolley, ensuring the smooth progress of the inspection work.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A trolley for internal pipeline flaw detection includes a first placement frame with a handle fixed to one end. A second placement frame is slidably connected to the inner side of the first placement frame away from the handle. Both the first and second placement frames are equipped with a fixing mechanism for fixing the detection equipment. Telescopic rods are fixed to both sides of the bottom of the first placement frame near the handle, and two telescopic rods are also fixed to both sides of the bottom of the second placement frame away from the handle. There are a total of four telescopic rods, and each of the four telescopic rods has a movable wheel fixed to its telescopic end. The fixing mechanism is also equipped with a locking component for locking the fixing mechanism.

[0008] As a preferred embodiment of the trolley for internal pipeline flaw detection provided by this utility model, the fixing mechanism includes a first fixing rod, a rotating plate, a rotating rod, a knob, a threaded rod, a threaded sleeve, a clamping plate, and a guide rod. A first fixing rod is fixed to one side of both the first and second placement frames. A rotating plate is rotatably connected to the inner side of the top of the first fixing rod. A rotating rod is rotatably connected to the inner side of the rotating plate. A knob is fixed to the top of the rotating rod. A threaded rod is fixed to the bottom of the rotating rod. A threaded sleeve is threadedly connected to the outer side of the threaded rod. A clamping plate is fixed to the bottom of the threaded sleeve. Guide rods are fixed to both ends of the top of the clamping plate. The guide rods are slidably connected to the rotating plate.

[0009] As a preferred embodiment of the trolley for internal pipeline flaw detection provided by this utility model, the fixing mechanism further includes a second fixing rod, a first connecting plate, bolts and nuts. One end of the rotating plate is fixed with the first connecting plate, and the inner side of the first connecting plate is threaded with a bolt. The first and second placement frames are both fixed with second fixing rods on the side away from the first fixing rod. The bolts are threaded to the second fixing rods, and the bottom end of the outer side of the bolts is threaded with nuts.

[0010] In a preferred embodiment of the trolley for internal pipeline flaw detection provided by this utility model, the locking assembly includes a first locking plate, a second locking plate, a first guide plate, a second guide plate, and a spring. The first locking plate is fixed to the top of the outer side of the rotating rod, and the second locking plate is slidably connected to the outer side of the rotating rod. The second locking plate is located at the bottom of the first locking plate and is locked to the first locking plate. Two first guide plates are fixed to both ends of the outer side of the second locking plate, and two second guide plates are fixed to the top of the rotating rod. The first guide plate is slidably connected to the corresponding second guide plate. A spring is sleeved on the bottom of the outer side of the first locking plate, and the top of the spring is fixedly connected to the bottom of the second locking plate.

[0011] In a preferred embodiment of the trolley for internal pipeline flaw detection provided by this utility model, the first guide plate is I-shaped and is snapped onto the inner side of the second guide plate.

[0012] In a preferred embodiment of the trolley for internal pipeline flaw detection provided by this utility model, spotlights are fixed on both sides of the second placement frame away from the handle.

[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0014] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] This utility model provides a trolley for internal pipeline flaw detection. Through a fixing mechanism, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping off due to vibration or tilting during movement or trolley travel. The locking mechanism can prevent the knob from being accidentally turned due to trolley shaking, bumping, or slight external force, thereby preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed to the trolley, ensuring the smooth progress of the inspection work. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the first fixed rod and the rotating plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the first and second placement racks of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the threaded rod and the threaded sleeve of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the bolt and the first connecting plate of this utility model;

[0022] Figure 6 This utility model Figure 4 Enlarged view of point A;

[0023] Figure 7 This is a schematic diagram of the connection structure between the second snap-fit ​​plate and the first guide plate of this utility model. In the diagram: 1. First placement frame; 2. Handle; 3. Second placement frame; 4. Telescopic rod; 5. Moving wheel; 6. First fixing rod; 7. Rotating plate; 8. Rotating rod; 9. Knob; 10. Threaded rod; 11. Threaded sleeve; 12. Clamping plate; 13. Guide rod; 14. Second fixing rod; 15. First connecting plate; 16. Bolt; 17. Nut; 18. First snap-fit ​​plate; 19. Second snap-fit ​​plate; 20. First guide plate; 21. Second guide plate; 22. Spring; 23. Searchlight. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] As described in the background art, the pipeline environment is complex, and the trolley will experience movement, turning, and possible bumps, which may cause the X-ray machine to slide or even fall off the trolley.

[0026] To solve this technical problem, this utility model provides a trolley for internal pipeline flaw detection.

[0027] For details, please refer to Figures 1-7 A trolley for internal pipeline flaw detection. Specifically, it includes: a first placement frame 1, with a handle 2 fixed to one end; a second placement frame 3 slidably connected to the inner side of the first placement frame 1 away from the handle 2; both the first and second placement frames 1 and 3 are equipped with fixing mechanisms for fixing the detection equipment; telescopic rods 4 are fixed to both sides of the bottom of the first placement frame 1 near the handle 2; two telescopic rods 4 are also fixed to both sides of the bottom of the second placement frame 3 away from the handle 2; there are four telescopic rods 4 in total; each of the four telescopic rods 4 has a movable wheel 5 fixed to its telescopic end; and a locking component is also provided on the fixing mechanism for locking the fixing mechanism.

[0028] This utility model provides a trolley for internal pipeline flaw detection. Through a fixing mechanism, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping off due to vibration or tilting during movement or trolley travel. The locking mechanism can prevent the knob 9 from being accidentally turned due to trolley shaking, bumping, or slight contact with external force, thereby preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed to the trolley, ensuring the smooth progress of the inspection work.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Example 1

[0032] Reference Figures 1-4 A trolley for internal pipeline flaw detection includes a first placement frame 1, with a handle 2 fixed to one end of the first placement frame 1. A second placement frame 3 is slidably connected to the inner side of the first placement frame 1 away from the handle 2. Both the first placement frame 1 and the second placement frame 3 are provided with a fixing mechanism for fixing the detection equipment. Telescopic rods 4 are fixed to both sides of the bottom of the first placement frame 1 near the handle 2. Similarly, two telescopic rods 4 are fixed to both sides of the bottom of the second placement frame 3 away from the handle 2. There are a total of four telescopic rods 4. The telescopic ends of the four telescopic rods 4 are all fixed with movable wheels 5. The fixing mechanism is also provided with a locking component for locking the fixing mechanism.

[0033] The fixing mechanism includes a first fixing rod 6, a rotating plate 7, a rotating rod 8, a knob 9, a threaded rod 10, a threaded sleeve 11, a clamping plate 12, and a guide rod 13. The first fixing rod 6 is fixed to one side of both the first placement frame 1 and the second placement frame 3. The rotating plate 7 is rotatably connected to the inner side of the top of the first fixing rod 6. The rotating rod 8 is rotatably connected to the inner side of the rotating plate 7. The knob 9 is fixed to the top of the rotating rod 8. The threaded rod 10 is fixed to the bottom of the rotating rod 8. The threaded sleeve 11 is threadedly connected to the outer side of the threaded rod 10. The clamping plate 12 is fixed to the bottom of the threaded sleeve 11. The guide rod 13 is fixed to both ends of the top of the clamping plate 12. The guide rod 13 is slidably connected to the rotating plate 7.

[0034] The fixing mechanism also includes a second fixing rod 14, a first connecting plate 15, a bolt 16 and a nut 17. One end of the rotating plate 7 is fixed with the first connecting plate 15. The inner side of the first connecting plate 15 is threaded with the bolt 16. The first placement frame 1 and the second placement frame 3 are both fixed with the second fixing rod 14 on the side away from the first fixing rod 6. The bolt 16 is threaded with the second fixing rod 14. The bottom end of the outer side of the bolt 16 is threaded with the nut 17.

[0035] With the fixing mechanism, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping off due to vibration or tilting during movement or trolley travel.

[0036] Example 2

[0037] Reference Figures 4-7A trolley for internal pipeline flaw detection includes a locking assembly comprising a first locking plate 18, a second locking plate 19, a first guide plate 20, a second guide plate 21, and a spring 22. The first locking plate 18 is fixed to the top of the outer side of a rotating rod 8, and the second locking plate 19 is slidably connected to the outer side of the rotating rod 8. The second locking plate 19 is located at the bottom of the first locking plate 18 and is locked to the first locking plate 18. Two first guide plates 20 are fixed to both ends of the outer side of the second locking plate 19, and two second guide plates 21 are fixed to the top of the rotating plate 7. The first guide plates 20 are slidably connected to the corresponding second guide plates 21. A spring 22 is sleeved on the bottom of the outer side of the first locking plate 18, and the top of the spring 22 is fixedly connected to the bottom of the second locking plate 19.

[0038] The locking mechanism prevents the knob 9 from turning accidentally due to trolley shaking, bumping, or slight external contact, thus preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed on the trolley, guaranteeing the smooth progress of the testing work.

[0039] The first guide plate 20 is I-shaped and is snapped into the inner side of the second guide plate 21. The I-shaped design of the first guide plate 20 can better limit the second snap-fit ​​plate 19.

[0040] The second placement rack 3 is fixed with searchlights 23 on both sides of the end away from the handle 2. The searchlights 23 are designed to be used to detect the condition inside the pipe.

[0041] The following is the usage process of a trolley for internal pipeline flaw detection provided by this utility model: When it is necessary to transport the X-ray machine by the trolley, the extension length of the second placement frame 3 is adjusted to adjust the overall length of the trolley. The X-ray machine is then placed on the first placement frame 1 and the second placement frame 3. The rotating plate 7 is then rotated so that the first connecting plate 15, which is fixedly connected to the rotating plate 7, comes into contact with the second fixed rod 14. The bolt 16 is then threadedly connected to the first connecting plate 15 and the second fixed rod 14. The nut 17 is then threadedly connected to the bolt 16, thereby tightening the second fixed rod 14 and the first connecting plate 15.

[0042] At this time, the second snap plate 19 is pressed to the bottom. At this time, the second snap plate 19 is no longer snapped with the first snap plate 18 through the teeth on the second snap plate 19. At this time, the first snap plate 18, which is fixedly connected to the rotating rod 8, is no longer restricted.

[0043] During the internal flaw detection of the pipeline, the trolley will undergo operations such as moving and turning, and the environment is relatively complex. The locking mechanism can prevent the knob 9 from being accidentally turned due to the trolley shaking, bumping or slight contact with external force, thereby preventing the fixing mechanism from loosening and ensuring that the X-ray machine is always firmly fixed on the trolley, ensuring the smooth progress of the inspection work.

[0044] Since the rotating rod 8 is fixedly connected to the knob 9 and the threaded rod 10, rotating the knob 9 will cause the threaded rod 10 to rotate, which in turn causes the threaded sleeve 11, which is threadedly connected to the threaded rod 10, to rise and fall. Since the threaded sleeve 11 is fixedly connected to the clamping plate 12, the clamping plate 12 will come into contact with the X-ray machine. The design of the guide rod 13 makes the rising and falling of the clamping plate 12 more stable.

[0045] With the fixing mechanism, the X-ray machine can be more securely fixed to the trolley, reducing the risk of the X-ray machine slipping off due to vibration or tilting during movement or trolley travel.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A trolley for internal flaw detection of pipelines, characterized in that, The device includes a first placement frame (1), one end of which is fixed with a handle (2). A second placement frame (3) is slidably connected to the inner side of the first placement frame (1) away from the handle (2). Both the first placement frame (1) and the second placement frame (3) are provided with a fixing mechanism for fixing the detection device. Telescopic rods (4) are fixed on both sides of the bottom of the first placement frame (1) near the handle (2). Similarly, two telescopic rods (4) are fixed on both sides of the bottom of the second placement frame (3) away from the handle (2). There are four telescopic rods (4) in total. Each telescopic end of the four telescopic rods (4) is fixed with a moving wheel (5). The fixing mechanism is also provided with a locking component for locking the fixing mechanism.

2. A trolley for internal pipeline flaw detection according to claim 1, characterized in that, The fixing mechanism includes a first fixing rod (6), a rotating plate (7), a rotating rod (8), a knob (9), a threaded rod (10), a threaded sleeve (11), a clamping plate (12), and a guide rod (13). The first fixing rod (6) is fixed on one side of the first placement frame (1) and the second placement frame (3). The rotating plate (7) is rotatably connected to the inner side of the top of the first fixing rod (6). The rotating rod (8) is rotatably connected to the inner side of the rotating plate (7). The knob (9) is fixed to the top of the rotating rod (8). The threaded rod (10) is fixed to the bottom of the rotating rod (8). The threaded sleeve (11) is threadedly connected to the outer side of the threaded rod (10). The clamping plate (12) is fixed to the bottom of the threaded sleeve (11). The guide rod (13) is slidably connected to the rotating plate (7).

3. A trolley for internal pipeline flaw detection according to claim 2, characterized in that, The fixing mechanism also includes a second fixing rod (14), a first connecting plate (15), a bolt (16), and a nut (17). One end of the rotating plate (7) is fixed with the first connecting plate (15). The inner side of the first connecting plate (15) is threaded with a bolt (16). The first placement frame (1) and the second placement frame (3) are both fixed with a second fixing rod (14) on the side away from the first fixing rod (6). The bolt (16) is threaded to the second fixing rod (14). The bottom end of the outer side of the bolt (16) is threaded with a nut (17).

4. A trolley for internal pipeline flaw detection according to claim 2, characterized in that, The locking assembly includes a first snap-fit ​​plate (18), a second snap-fit ​​plate (19), a first guide plate (20), a second guide plate (21), and a spring (22). The top of the outer side of the rotating rod (8) is fixed with the first snap-fit ​​plate (18), and the outer side of the rotating rod (8) is slidably connected with the second snap-fit ​​plate (19). The second snap-fit ​​plate (19) is located at the bottom of the first snap-fit ​​plate (18) and snaps with the first snap-fit ​​plate (18). Two first guide plates (20) are fixed at both ends of the outer side of the second snap-fit ​​plate (19), and two second guide plates (21) are fixed at the top of the rotating plate (7). The first guide plate (20) is slidably connected with the corresponding second guide plate (21). The bottom of the outer side of the first snap-fit ​​plate (18) is sleeved with a spring (22), and the top of the spring (22) is fixedly connected to the bottom of the second snap-fit ​​plate (19).

5. A trolley for internal pipeline flaw detection according to claim 4, characterized in that, The first guide plate (20) is I-shaped and is snapped into the inner side of the second guide plate (21).

6. A trolley for internal pipeline flaw detection according to claim 1, characterized in that, The second placement rack (3) has searchlights (23) fixed on both sides of the end away from the handle (2).

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