A deep well water pipe, water pump fishing device

Abstract

The utility model discloses a kind of deep well water pipe, water pump fishing device, the utility model is driven slide block base by inclined plane guide rail, make replaceable friction block outer arc surface and drop inner wall closely adhere, cooperate surface anti-skid line significantly improve friction, to be able to realize stable reliable clamping on the pipe wall of different diameter, different surface state;The combination design of modular friction block and selectable length guide cone ensures that it can be quickly adapted and maintain high clamping force under various well conditions, effectively improves the success rate and safety of deep well fishing operation, while reducing the frequency of replacing the entire device, reduces operation time and cost.

Description

Technical Field

[0001] This utility model belongs to the field of salvage devices, specifically, it relates to a deep well water pipe and water pump salvage device. Background Technology

[0002] During the use of tubular components such as deep well water pipes and pumps, these components may accidentally fall into the wellbore due to corrosion, vibration, or operational errors. They must be retrieved using retrieval tools to restore equipment operation. During retrieval, the reliability of the securing mechanism directly affects the success rate and safety of the operation. However, existing gripping cone and sliding block retrieval tools have shortcomings in terms of securing reliability: gripping cones, due to their fixed cone size, are prone to unstable securing or failure to enter when facing objects of different diameters; traditional sliding block retrieval tools, although their structure can open, have fixed friction surface dimensions, making them prone to slippage or insecure securing in cases of smooth pipe walls or large diameter deviations. Furthermore, the friction components are often fixed as a single unit, making rapid adjustments for different well conditions impossible, leading to a decreased retrieval success rate.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a deep well water pipe and water pump retrieval device, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A deep well water pipe and pump retrieval device includes: a retrieval device body, which is cylindrical and has a ring at the top for connecting a lifting rope;

[0007] At least two asymmetrical grooves are formed on the periphery of the main body of the retrieval device. The inner walls of the two grooves are respectively provided with inclined guide rails. The two inclined guide rails are arranged longitudinally along the outer periphery of the main body of the retrieval device and form a sloping surface.

[0008] Two slider bases slide on one side of the inclined guide rail, and friction blocks are connected to one side of each slider base. The outer side of the friction blocks is provided with texture to increase friction.

[0009] A guide cone is installed at the lower end of the main body of the retrieval device;

[0010] In this process, by lifting the main body of the retrieval device, the slider base moves outward along the inclined guide rail, causing the friction block to fit against the inner wall of the object being retrieved, thus achieving a secure hold.

[0011] Optionally, the side of the friction block that is in contact with the slider base is a flat surface, and the side away from the slider base is an arc surface with horizontal or mesh patterns to increase friction.

[0012] Optionally, the ring is connected to the top of the retrieval device body by welding or integral molding, and is used to connect the wire rope.

[0013] Optionally, both slider bases have an I-shaped cross-section, and each of the two inclined guide rails has a "T"-shaped groove on one side to restrict the movement of the slider base along the inclined guide rail direction.

[0014] Optionally, each of the two slider bases has two screw mounting holes on one side, and each of the two friction blocks has a countersunk hole corresponding to the screw mounting hole on one side. A fixing screw is inserted in the vertical direction of the countersunk hole, and the friction block and the slider base form a replaceable modular connection through the fixing screw.

[0015] Optionally, the lower end of the retrieval device body is provided with an internal threaded interface, and the upper end of the guide cone is fixedly connected with a threaded rod, with the threaded rod threaded in the vertical direction of the threaded interface.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] This invention uses an inclined guide rail to drive the slider base to extend outward, allowing the outer arc surface of the replaceable friction block to fit tightly against the inner wall of the object. The anti-slip texture on the surface significantly improves the friction force, thus achieving stable and reliable locking on pipe walls of different diameters and surface conditions. The combination design of the modular friction block and the optional length guide cone ensures rapid adaptation and maintenance of high locking force under various well conditions, effectively improving the success rate and safety of deep well retrieval operations. At the same time, it reduces the frequency of replacing the entire device, reducing operation time and cost.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the first side cross-sectional structure of the salvage device;

[0021] Figure 2 This is a schematic diagram of the second side cross-sectional structure of the salvage device;

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the first side of the salvage device;

[0023] Figure 4 This is a top view of the salvage device.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figure 1-4 As shown, this embodiment provides a deep well water pipe and water pump retrieval device, including a retrieval device body 2, which is cylindrical and has a ring buckle 1 at the top for connecting a lifting rope;

[0027] At least two asymmetrical grooves 12 are formed on the periphery of the main body 2 of the retrieval device. The inner walls of the two grooves 12 are respectively provided with inclined guide rails 3 and 7. The two inclined guide rails 3 and 7 are arranged longitudinally along the outer periphery of the main body 2 of the retrieval device and form a sloping surface.

[0028] Two slider bases 4 and 8 slide on one side of the inclined guide rails 3 and 7 respectively. Friction blocks 6 and 10 are connected to one side of the two slider bases 4 and 8 respectively. The outer side of the friction blocks 6 and 10 is provided with texture to increase friction.

[0029] Guide cone 11, the guide cone 11 is installed at the lower end of the main body 2 of the retrieval device;

[0030] In this process, by lifting the main body 2 of the retrieval device, the slider bases 4 and 8 move outward along the inclined guide rails 3 and 7, causing the friction blocks 6 and 10 to fit against the inner wall of the object being retrieved, thus achieving a secure hold.

[0031] By assembling the main body 2 of the retrieval device, the inclined guide rails 3 and 7, the slider base 4 and 8, the friction blocks 6 and 10, and the guide cone 7 into an integral structure, and employing the principle of inclined plane driving the friction blocks 6 and 10 to expand outward, stable locking can be achieved for water pipes and pumps of different diameters. This structure not only allows for smooth entry into the cavity of the fallen object during the well lowering process, but also adaptive tensioning during the lifting process, improving the reliability and success rate of the retrieval process, while reducing the dependence on downhole spatial accuracy.

[0032] In this embodiment, the side of the friction blocks 6 and 10 that contacts the slider bases 4 and 8 is a flat surface, while the side away from the slider bases 4 and 8 is an arc surface with transverse or mesh-like textures to increase friction. The inner flat surface of the friction blocks 6 and 10 can fully contact the slider bases 4 and 8, ensuring stable force transmission; the outer arc surface design can better fit the inner wall of the circular object, and the transverse or mesh-like textures significantly increase friction, preventing the retrieval device from slipping during lifting. This combination of shape and surface treatment improves the gripping performance on pipe walls of different materials and surface conditions.

[0033] In this embodiment, the ring buckle 1 is connected to the top of the retrieval device body 2 by welding or integral forming, and is used to connect the steel wire rope.

[0034] In this embodiment, both slider bases 4 and 8 have an I-shaped cross-section, and each of the two inclined guide rails 3 and 7 has a T-shaped groove on one side to restrict the movement of slider bases 4 and 8 along the inclined guide rails 3 and 7. The I-shaped cross-section of slider bases 4 and 8 improves the bending stiffness and guiding stability of the structure; combined with the T-shaped groove design of the inclined guide rails 3 and 7, the sliders can maintain a stable position and prevent derailment during movement.

[0035] In this embodiment, each of the two slider bases 4 and 8 has two screw mounting holes on one side, and each of the two friction blocks 6 and 10 has a countersunk hole corresponding to the screw mounting hole on one side. Fixing screws 5 and 9 are inserted vertically into the countersunk holes, forming a replaceable modular connection between the friction blocks 6 and 10 and the slider bases 4 and 8 through the fixing screws 5 and 9. The two screw mounting holes on the slider bases 4 and 8, and the replacement of the friction blocks 6 and 10 through the fixing screws, make the replacement of the friction blocks 6 and 10 quick and convenient.

[0036] In this embodiment, the lower end of the retrieval device body 2 is provided with an internal threaded interface, and the upper end of the guide cone 11 is fixedly connected with a threaded rod, and the threaded rod is threaded in the vertical direction of the threaded interface.

[0037] Working principle: This utility model uses the inclined guide rails 3 and 7 on the main body 2 of the retrieval device to cooperate with the sliding slider base 4 and 8 to realize the automatic retraction and opening of the friction blocks 6 and 10 during the process of lowering and lifting, thereby completing the adaptive locking of objects of different diameters.

[0038] During operation, first select friction blocks 6 and 10 of the appropriate specifications according to the inner diameter of the object to be retrieved, such as a water pipe or water pump, and install them on the slider base 4 and 8 with fixing screws. At the same time, replace the guide cone 7 with one of appropriate length and material according to the well depth and well conditions.

[0039] During the descent, the guide cone 7 guides the retrieval device to smoothly enter the cavity of the dropped object. The thrust applied by the dropping object port to the friction blocks 6 and 10 causes the slider bases 4 and 8 to slide upward along the inclined guide rails 3 and 7, thereby driving the friction blocks 6 and 10 to retract inward, ensuring that the entire device passes smoothly through the port.

[0040] When the retrieval device reaches the predetermined position and begins to lift, the slider bases 4 and 8 move downward along the guide rails under the action of gravity and the inclined guide rails 3 and 7, causing the friction blocks 6 and 10 to open outward, so that the outer arc surface of the friction blocks 6 and 10 is tightly attached to the inner wall of the fallen object, and the surface texture enhances the friction and forms a locking effect.

[0041] During the continued lifting process, the friction and shape of the friction blocks 6 and 10 with the inner wall of the object firmly fix the object and bring it out of the well shaft as a whole.

[0042] When it is necessary to release the fallen object, an impact force can be applied downwards to cause the slider bases 4 and 8 to slide back to the retracted position, and the friction blocks 6 and 10 to detach from the pipe wall, thereby achieving the separation of the retrieval device from the fallen object.

[0043] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A deep well water pipe and pump retrieval device, characterized in that, include: The main body of the retrieval device (2) is cylindrical, and the top is provided with a ring (1) for connecting the lifting rope. At least two asymmetrical grooves (12) are opened on the periphery of the main body (2) of the retrieval device. The inner walls of the two grooves (12) are respectively provided with inclined guide rails (3, 7). The two inclined guide rails (3, 7) are arranged longitudinally along the outer periphery of the main body (2) of the retrieval device and form a sloping surface. Two slider bases (4, 8) slide on one side of the inclined guide rails (3, 7), and friction blocks (6, 10) are connected to one side of the two slider bases (4, 8), and the outer side of the friction blocks (6, 10) is provided with textures to increase friction. Guide cone (11), the guide cone (11) is installed at the lower end of the main body (2) of the retrieval device; In this process, by lifting the main body (2) of the retrieval device, the slider base (4, 8) moves outward along the inclined guide rail (3, 7), causing the friction block (6, 10) to fit against the inner wall of the object being retrieved, thus achieving a secure hold.

2. The deep well water pipe and pump retrieval device according to claim 1, characterized in that, The friction blocks (6, 10) have a flat surface on the side that is in contact with the slider base (4, 8), and an arc surface on the side away from the slider base (4, 8) with horizontal or mesh patterns to increase friction.

3. The deep well water pipe and pump retrieval device according to claim 1, characterized in that, The ring (1) is connected to the top of the retrieval device body (2) by welding or integral forming, and is used to connect the wire rope.

4. The deep well water pipe and pump retrieval device according to claim 1, characterized in that, Both slider bases (4, 8) have an I-shaped cross section, and both inclined guide rails (3, 7) have a "T" shaped groove on one side to restrict the movement of slider bases (4, 8) along the inclined guide rails (3, 7).

5. A deep well water pipe and pump retrieval device according to claim 1, characterized in that, Two screw mounting holes are provided on one side of each of the two slider bases (4, 8), and countersunk holes corresponding to the screw mounting holes are provided on one side of each of the two friction blocks (6, 10). Fixing screws (5, 9) are inserted in the vertical direction of the countersunk holes. The friction blocks (6, 10) and slider bases (4, 8) are connected in a detachable modular manner by fixing screws (5, 9).

6. The deep well water pipe and pump retrieval device according to claim 1, characterized in that, The lower end of the retrieval device body (2) is provided with an internal thread interface, and the upper end of the guide cone (11) is fixedly connected with a threaded rod, and the threaded rod is threaded in the vertical direction of the threaded interface.

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