Pipeline fetching device for metal foreign matters

Abstract

The utility model relates to a pipeline fetching device, in particular to a pipeline fetching device for metal foreign matters. The two ends of a lead screw are rotationally connected with pulleys respectively, a round pipe is arranged on the outer side of the lead screw in a sleeving mode, the top of the round pipe extends forwards to be provided with a connecting device, the connecting device is fixedly arranged on a bolt on the connecting device in a penetrating mode through a nut, the bottom of the bolt is connected with a strong magnet, and the bottom of the strong magnet is higher than the bottoms of the pulleys. Compared with the prior art, the pipeline object taking device for the metal foreign matter has the advantages that the height of the magnet is adjusted through the bolt, a certain distance is kept between the magnet and the inner wall of the pipeline all the time, the magnet can adsorb the metal foreign matter while not adsorbing the pipeline, and the problem that the metal foreign matter cannot be taken out after being adsorbed by the magnet is solved.

Description

Technical Field

[0001] This utility model relates to a pipe retrieval device, and more particularly to a pipe retrieval device for metallic foreign objects. Background Technology

[0002] In power plant maintenance, falling objects into pipelines are a common accident. Foreign objects entering pipelines can easily damage pipelines and equipment under operating conditions. Therefore, after a foreign object falls into a pipeline, it needs to be removed to eliminate the potential hazard. However, the confined space inside the pipeline makes removing the foreign object a challenging problem.

[0003] In existing technologies, the removal of metallic foreign objects typically involves cutting the pipe, which cuts the pipe near the location where the object fell, removes the object, and then restores the cut. The main drawbacks of this method are its complexity, time-consuming nature, and high risk. Before cutting the pipe, it is necessary not only to accurately locate the foreign object but also to avoid hydrogen or oil pipelines to facilitate cutting and welding. Furthermore, the risk of leakage after pipe restoration is significantly increased. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a pipe retrieval device for metal foreign objects, which solves the problem of difficult operation in the prior art for removing metal foreign objects from pipes.

[0005] The technical solution is as follows:

[0006] A pipe-mounted object retrieval device for metallic foreign objects includes a lead screw with pulleys connected to both ends, a circular tube sleeved on the outside of the lead screw, and a connecting device extending forward from the top of the circular tube. The connecting device is secured by a nut to a bolt passing through it, and a strong magnet is connected to the bottom of the bolt. The bottom height of the strong magnet is greater than the bottom height of the pulley.

[0007] Optionally, the connecting device is plate-shaped.

[0008] Optionally, the connecting device is provided with a traction mechanism at its top.

[0009] Optionally, the strong magnet is provided with a metal casing.

[0010] Optionally, the top and bottom of the connecting device are respectively secured by bolts passing through the connecting device using nuts.

[0011] Optionally, the number of bolts is 2.

[0012] Compared with the prior art, the advantages of the technical solution of this utility model are as follows: This utility model provides a solution for cleaning metal foreign objects in pipes. By adjusting the height of the magnet with bolts, the magnet is always kept at a certain distance from the inner wall of the pipe. Thus, the magnet can adsorb metal foreign objects without adsorbing the pipe, avoiding the problem that the magnet cannot be removed after adsorbing the pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the walking mechanism structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the adsorption mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the fixing mechanism structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0018] In the diagram: 1. Pulley; 2. Lead screw; 3. Strong magnet; 4. Bolt; 5. Nut; 6. Round tube; 7. Connecting device; 8. Traction mechanism. Detailed Implementation

[0019] like Figures 1 to 5 As shown, this utility model provides a pipe-mounted object retrieval device for metal foreign objects. The two ends of the lead screw 2 are respectively connected to pulleys 1. A round tube 6 is sleeved on the outside of the lead screw 2. The top of the round tube 6 extends forward and is provided with a connecting device 7. The connecting device 7 is fixed by a nut 5 to a bolt 4 that passes through the connecting device 7. A strong magnet 3 is connected to the bottom of the bolt 4. The bottom height of the strong magnet 3 is greater than the bottom height of the pulley 1.

[0020] The lead screw 2 and pulley 1 together constitute the walking mechanism of this utility model.

[0021] The length of the strong magnet 3 is matched with the distance between the two pulleys 1.

[0022] The strong magnet 3, bolt 4, and nut 5 together constitute the adsorption mechanism of this utility model.

[0023] The circular tube 6 and the connecting device 7 together constitute the fixing mechanism of this utility model.

[0024] The adsorption mechanism and the fixing mechanism together constitute the adjustment mechanism of this utility model. The adjustment mechanism can control the free rise and fall of the magnet by adjusting the position of the adjusting nut 5, so that the magnet always maintains a certain distance from the inner wall of the pipe. Thus, the magnet can adsorb metal foreign objects without adsorbing the pipe, avoiding the problem of the magnet being unable to be removed after adsorbing the pipe. The position of the magnet can also be adjusted according to the size of the foreign object that has fallen into the pipe, so as to remove the foreign object without adsorbing the magnet into the pipe. It has obvious universality and flexibility.

[0025] For example: Select a pipe retrieval device for metal foreign objects that is adapted to the size of the pipe to be cleaned, tie a rope to the device, and let the device roll into the pipe to be cleaned on a slide at a certain height. Under the action of the gravity of the strong magnet 3, the strong magnet 3 remains in a downward position during the rolling of the pulley 1. After the device rolls to the metal foreign object, the strong magnet 3 attracts the metal foreign object, and the rope is pulled to remove the device.

[0026] For example: Select a pipe retrieval device for metal foreign objects that is adapted to the size of the pipe to be cleaned, tie a rope to the device, push the device into the pipe to be cleaned, and under the action of the gravity of the strong magnet 3, the strong magnet 3 remains in a downward position as the pulley 1 rolls; after the device rolls to the metal foreign object, the strong magnet 3 attracts the metal foreign object, and the rope is pulled to remove the device.

[0027] For example: When the visibility inside the pipe is good and the foreign object is located near a bend, a nut can be welded directly to the device's fixing structure, and the retrieval device can be placed into the pipe using a rope. The device's own weight and inertia will then allow it to be deployed to the vicinity of the foreign object for adsorption. When the visibility inside the pipe is poor and the location of the foreign object cannot be confirmed, or when the foreign object is located horizontally within the pipe, metal clamps or other connecting parts can be welded to the device's fixing structure to connect the device to an endoscope. Connecting to an endoscope not only allows for visualization of the device's location, facilitating object retrieval, but also allows the device to move along horizontal sections of the pipe using the rigid tubing of the endoscope, achieving a wider range for picking up fallen objects. The above usage methods demonstrate the device's extensive expandability.

[0028] In some embodiments, pulley 1 is made of nylon.

[0029] In some embodiments, the connecting device 7 is plate-shaped.

[0030] In some embodiments, the connecting device 7 is provided with a traction mechanism 8 on its top.

[0031] Among them, the traction mechanism 8 is used to fix the rope.

[0032] In some embodiments, the strong magnet 3 is provided with a metal casing.

[0033] In some embodiments, the top and bottom of the connecting device 7 are respectively secured by nuts 5 to bolts 4 passing through the connecting device 7.

[0034] In some embodiments, the number of bolts 4 is 2.

Claims

1. A pipe-mounted object retrieval device for metallic foreign objects, characterized in that, The two ends of the lead screw (2) are connected to pulleys (1), and the round tube (6) is sleeved on the outside of the lead screw (2). The top of the round tube (6) extends forward and is provided with a connecting device (7). The connecting device (7) is fixed by a nut (5) to a bolt (4) that passes through the connecting device (7). The bottom of the bolt (4) is connected to a strong magnet (3). The bottom height of the strong magnet (3) is greater than the bottom height of the pulley (1).

2. The pipe retrieval device for metallic foreign objects according to claim 1, characterized in that, The connecting device (7) is plate-shaped.

3. The pipe retrieval device for metallic foreign objects according to claim 1, characterized in that, The connecting device (7) is provided with a traction mechanism (8) at the top.

4. The pipe retrieval device for metallic foreign objects according to claim 1, characterized in that, The strong magnet (3) is provided with a metal shell.

5. A pipe-mounted object retrieval device for metallic foreign objects according to claim 1, characterized in that, The top and bottom of the connecting device (7) are respectively fixed by the nut (5) to the bolts (4) passing through the connecting device (7).

6. The pipe retrieval device for metallic foreign objects according to claim 1, characterized in that, The number of bolts (4) is 2.

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