Drill rod fishing device
By designing a drill pipe retrieval device that includes an outer casing and built-in helical blades, the problem of recovering drill pipes when they are stuck or broken has been solved, achieving efficient recovery of drill pipes and saving materials, thus reducing drilling costs.
Patent Information
- Application Number
- CN202520862367.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-05-06
AI Technical Summary
Existing drill pipe retrieval devices are difficult to effectively clamp and retrieve when drill pipes get stuck, break, or the connecting pins fall off, resulting in high material consumption and impacting production progress.
A drill rod retrieval device was designed, comprising an outer sleeve, an internal spiral blade, and a hexagonal coupling. The drill rod is fixed by the internal spiral blade and detachably connected to the outer sleeve by the hexagonal coupling, adapting to different drill rod sizes and achieving efficient drill rod retrieval.
It enables efficient recovery of drill pipe, reduces material costs, minimizes the impact on drilling production, improves hole formation rate, and saves time and costs.
Smart Images
Figure CN223908180U_ABST
Abstract
Description
[0001] The utility model relates to a drill rod fishing technical field, especially a drill rod fishing device. BACKGROUND
[0002] In the mine drilling work, the spiral drill rod (twist drill) often appears the phenomenon such as drill rod jamming, fracture, connecting pin falling off, which causes drill rod loss, and causes the excessive consumption of drilling tool material. In order to be able to fish the drill rod that falls off, reduce the material cost, reduce the influence on the drilling production progress. A simple and effective drill rod fisher needs to be researched, which is the purpose of the present design research.
[0003] The existing drill rod fishing device is fished by fishing tongs when being installed and used, the fishing tongs are placed to the drill rod position when being operated, the drill rod is clamped by opening the jaw, and then the drill rod is fished out by rotating or lifting, but if the drill rod surface is worn or deformed, the jaw can not firmly clamp the drill rod, leading to the drill rod falling off in the fishing process. For the drill rod in the deep position or being seriously jammed, the fishing tongs have limited operating space and are difficult to play a role, which brings certain adverse effect to the use process of people. In order to solve the problems of the prior art, a drill rod fishing device is provided. UTILITY MODEL CONTENT
[0004] The main purpose of the utility model is to provide a drill rod fishing device, which can effectively solve the problems in the background art.
[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:
[0006] A drill rod fishing device, comprising an outer sleeve pipe, an inner spiral blade is arranged in the outer sleeve pipe, a plurality of groups of protrusions are arranged on the outer surface of the right end of the outer sleeve pipe, a sleeve cap is arranged at the right end of the outer sleeve pipe, a connecting sleeve pipe is arranged at the left end of the outer sleeve pipe, a threaded rod is arranged in the connecting sleeve pipe, a hexagonal connecting shaft is arranged at the left end of the threaded rod, and a connecting rod is arranged at the left end of the hexagonal connecting shaft.
[0007] Preferably, the outer edge of the inner spiral blade is welded with the outer sleeve pipe, and the outer sleeve pipe is a seamless alloy steel pipe with a semi-closed structure.
[0008] Preferably, the inner spiral blade is a constant pitch blade, and the inner spiral blade is equidistant from the drill rod.
[0009] Preferably, the threaded rod and the connecting sleeve pipe are threadedly connected.
[0010] Preferably, the hexagonal connecting shaft and the threaded rod are fixedly connected.
[0011] Preferably, the sleeve cap and the outer sleeve pipe are sleeved.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] This drill pipe retrieval device, through its built-in spiral blades and outer sleeve, fixes the drill pipe to the built-in spiral blades by screwing the built-in spiral blades into the outer surface of the drill pipe. This facilitates the subsequent retrieval of detached drill pipes, reduces material costs, and minimizes the impact of drill pipe detachment on drilling production progress.
[0014] This drill pipe retrieval device, through its hexagonal coupling and outer sleeve structure, allows for detachable connection between the hexagonal coupling and the outer sleeve via a connecting sleeve. This enables users to replace the outer sleeve with a suitable size according to the drill pipe size, allowing for selection and configuration based on actual drilling needs and drill pipe models. This achieves high hole formation rates, reduces drilling costs, and saves energy. It largely utilizes locally sourced materials, achieving recycling and saving significant material costs, while reducing the time and cost of re-drilling. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the disassembled structure of the outer tube and the cap of this utility model;
[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the connecting sleeve and threaded rod of this utility model;
[0018] Figure 4 This is a schematic diagram of the combined structure of the threaded rod and the hexagonal coupling of this utility model;
[0019] Figure 5 This is a schematic diagram of the spiral drill rod structure of this utility model.
[0020] In the diagram: 1. Outer sleeve; 2. Cap; 3. Internal spiral blade; 4. Connecting sleeve; 5. Hexagonal coupling; 6. Protrusion; 7. Threaded rod; 8. Connecting rod. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Example 1, as Figures 1-2 As shown, a drill pipe retrieval device includes an outer sleeve 1, an internal spiral blade 3 welded inside the outer sleeve 1, multiple sets of protrusions 6 fixedly connected to the outer surface of the right end of the outer sleeve 1, a cap 2 detachably connected to the right end of the outer sleeve 1, and a connecting sleeve 4 fixedly connected to the left end of the outer sleeve 1.
[0023] By incorporating the built-in spiral blade 3 and outer sleeve 1, the drill rod can be fixed to the built-in spiral blade 3 by screwing the built-in spiral blade 3 into the outer surface of the drill rod. This facilitates the subsequent retrieval of the detached drill rod, reduces material costs, and minimizes the impact of drill rod detachment on the drilling production schedule.
[0024] Example 2, as Figures 3-4 As shown, a drill pipe retrieval device has a threaded rod 7 internally threaded into a connecting sleeve 4, a hexagonal coupling 5 fixedly connected to the left end of the threaded rod 7, and a connecting rod 8 welded to the left end of the hexagonal coupling 5.
[0025] Through the design of the hexagonal coupling 5 and outer sleeve 1, which are detachably connected via connecting sleeve 4, users can replace the outer sleeve 1 with a suitable size according to the drill pipe size. This allows for selection and configuration based on actual drilling needs and drill pipe models, achieving high hole formation rates, reduced drilling costs, and energy savings. It also largely utilizes locally sourced materials, achieving recycling and saving significant material costs, while reducing the time and cost of re-drilling.
[0026] It should be noted that this utility model is a drill rod retrieval device. In use, the cap 2 is removed, the hexagonal coupling 5 is connected to the drilling machine, the cap 2 is removed, and the outer sleeve 1 is rotated and drilled in by the drilling machine. The rotation direction of the drilling machine is the same as the rotation direction of the connecting sleeve 4 and the threaded rod 7. If, due to improper operation, the two rotation directions are opposite and the threaded rod 7 comes out of the connecting sleeve 4, the drilling machine only needs to be reversed to drive the two to connect, and the spiral drill rod and the built-in spiral blade 3 will overlap. After overlap, the spiral drill rod can be taken out by pulling force, and the drill rod retrieval operation can be completed. Before retrieval, the user can select the appropriate outer sleeve 1 and the built-in spiral blade 3 according to the drill rod model, and connect the connecting sleeve 4 at the left end of the outer sleeve 1 to the threaded rod 7 by thread.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A drill pipe fishing device comprising an outer sleeve (1), characterised in that: The outer sleeve (1) is internally provided with an internal spiral blade (3), the outer surface of the right end of the outer sleeve (1) is provided with a plurality of groups of protrusions (6), the right end of the outer sleeve (1) is provided with a sleeve cap (2), the left end of the outer sleeve (1) is provided with a connecting sleeve (4), the connecting sleeve (4) is internally provided with a threaded rod (7), the left end of the threaded rod (7) is provided with a hexagonal connecting shaft (5), and the left end of the hexagonal connecting shaft (5) is provided with a connecting rod (8).
2. A drill pipe fishing device according to claim 1, characterised in that: The outer edge of the internal spiral blade (3) is welded with the outer sleeve (1), and the outer sleeve (1) is a seamless alloy steel pipe with a semi-closed structure.
3. A drill pipe fishing device according to claim 1, characterized in that: The internal spiral blade (3) is a constant pitch blade, and the internal spiral blade (3) is equidistant from the drill rod.
4. A drill pipe fishing device according to claim 1, characterized in that: The threaded rod (7) and the connecting sleeve (4) are threadedly connected.
5. A drill pipe fishing device according to claim 2, characterised in that: The hexagonal connecting shaft (5) and the threaded rod (7) are fixedly connected.
6. A drill pipe fishing device according to claim 2, characterized in that: The sleeve cap (2) and the outer sleeve (1) are sleeved.