Improved 140 novel rope drilling tool fisher

Abstract

The utility model discloses an improved 140 novel rope drilling tool fisher, which relates to the technical field of geological core drilling appliances and comprises a fishing head sleeve, a fishing joint is fixedly mounted at the top of the fishing head sleeve, an adjusting sleeve is slidably sleeved at the top of the fishing joint, and the adjusting sleeve is sleeved at the bottom of the fishing head sleeve. And the middle of the fishing connector is slidably connected with a rotating shaft penetrating up and down, six drainage holes are formed in the lower portion of the inner surface of the fishing head sleeve in an annular array mode, and the drainage holes penetrate to the inner surface of the fishing head sleeve. The six drainage holes are axially formed in the fishing head sleeve, so that the situation that slurry inside the fisher and drilling slurry have enough flowing channels can be effectively improved, and according to engineering practice, the improvement of the structure greatly improves the speed in the lowering and lifting process of the fisher, shortens the fishing time and improves the fishing efficiency. The working efficiency is improved, and meanwhile, the retention problem of viscous polyacrylamide, coarse particle substances, rock debris and the like in the slurry is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological core drilling appliances, and particularly relates to an improved 140 new type wireline drill tool fishing tool. Background Technique

[0002] The wireline coring technology has been widely promoted and applied in the current drilling process and is popular among the majority of engineering and technical personnel. However, during the process of lifting the core barrel, the core barrel may occasionally fall off and drop into the hole, and a dedicated fishing tool is required for fishing.

[0003] The following problems exist in the prior art:

[0004] When using a 140 fishing tool to fish for the inner pipe, it needs to be lowered from the hole mouth to the bottom of the hole. After the inner pipe is fished, it is pulled from the bottom of the hole to the hole mouth. Since there is mud liquid in the drilling hole, through practice, it can be known that during the lowering process of the fishing tool, the mud liquid will slowly fill the internal space of the fishing tool. After a period of time, the sticky polyacrylamide, coarse particle substances, cuttings, etc. in the mud liquid will remain in the internal of the fishing tool. After a long time, or when the drilling hole is relatively deep, the fishing tool will not be able to be lowered, or the speed will be slow, and sometimes it will be stuck, resulting in accidents in the hole. Content of the Utility Model

[0005] The utility model provides an improved 140 new type wireline drill tool fishing tool to solve the problems raised in the above background technique.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An improved 140 new type wireline drill tool fishing tool, including a fishing head sleeve, a fishing joint is fixedly installed at the top of the fishing head sleeve, an adjusting sleeve is slidably sleeved at the top of the fishing joint, a rotating shaft that penetrates up and down is slidably connected in the middle of the fishing joint, six drainage holes are annularly arranged below the inner surface of the fishing head sleeve, and the drainage holes penetrate to the inner surface of the fishing head sleeve.

[0008] The further improvement of the technical solution of the utility model lies in that: the drainage holes are 15 cm away from the bottom of the fishing head sleeve, the diameter of the drainage holes is 1 cm, and the distance between adjacent two drainage holes is 62.8 mm.

[0009] The further improvement of the technical solution of the utility model lies in that: the fishing joint includes a connecting plate, the connecting plate is fixedly installed at the top of the fishing head sleeve, a connecting head is fixedly connected to the bottom of the connecting plate, and a connecting sleeve column is fixedly connected to the top end of the connecting plate.

[0010] A further improvement of the technical solution of the present utility model lies in that: on the front and rear sides of the top of the outer surface of the connecting sleeve column, socket head cap screws are threadedly connected, and a first right-angle chute is opened on the left side of the outer surface of the connecting sleeve column.

[0011] A further improvement of the technical solution of the present utility model lies in that: the adjusting sleeve includes a sliding sleeve, the sliding sleeve is slidably sleeved on the outer surface of the connecting sleeve column, on the front and rear sides above the outer surface of the sliding sleeve, limiting chutes are opened, the outer surface of the socket head cap screw is slidably connected with the inner surface of the limiting chute, on the left side of the bottom end of the sliding sleeve, a second right-angle chute is opened, and on the upper and lower sides in the horizontal direction of the second right-angle chute, eight toothed baffles are fixedly connected.

[0012] A further improvement of the technical solution of the present utility model lies in that: the rotating shaft includes a rotating column, the rotating column is slidably connected to the bottom of the limiting chute, at the bottom end of the rotating column, a rotating head is fixedly connected, at the top of the rotating column, a connecting shaft is fixedly connected, and the top end of the connecting shaft penetrates to the inner surface of the connecting sleeve column.

[0013] A further improvement of the technical solution of the present utility model lies in that: on the left side of the top of the outer surface of the connecting shaft, an installation groove is opened, on the inner surface of the installation groove, a steel sheet is fixedly installed, the front end of the steel sheet penetrates to the inner side of the second right-angle chute, on the right side of the steel sheet, a socket head cap screw with a round concave head is movably connected, and the right end of the socket head cap screw with a round concave head is threadedly connected to the inside of the connecting shaft.

[0014] A further improvement of the technical solution of the present utility model lies in that: at the top of the rotating column, a spring is fixedly installed, and the top end of the spring is fixedly connected to the bottom end of the limiting chute.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0016] 1. The present utility model provides an improved 140 new type rope drill fishing tool. By axially arranging six drainage holes on the fishing head sleeve, it can effectively improve the sufficient flow channel between the mud liquid inside the fishing tool and the drilling mud liquid. According to engineering practice, the improvement of this structure greatly improves the speed of the fishing tool during the lowering and lifting processes, reduces the fishing time, improves the work efficiency, and at the same time effectively reduces the retention problems of sticky polyacrylamide, coarse particulate matter, cuttings, etc. in the mud liquid.

[0017] 2. The utility model provides an improved 140 new type wireline drill tool fishing device. Through the mutual cooperation among the sliding sleeve, the limit chute, the right-angle chute II, the toothed baffle, the rotating column, the rotating head, the connecting shaft, the installation groove, the steel sheet, the hexagon socket countersunk head screw, and the spring, the gear shifting is realized by lifting and lowering the adjusting sleeve and the fishing joint. The fixed steel sheet is stuck between the gears, and the gear shifting is mainly realized by the force generated by the compression and relaxation of the spring to rotate the rotating shaft. During the lowering process, when the force is evenly applied, the gear will not change. Only when the additional up and down pulling force is increased, or when the speed suddenly changes from fast to slow or from slow to fast, the gear will shift forward by one gear. The eight gears can be shifted eight times by the up and down external forces, and finally fall off to separate from the core inner tube, completing the core fishing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic structural diagram of the fishing head sleeve of the utility model;

[0020] Figure 3 is a schematic structural diagram of the fishing joint of the utility model;

[0021] Figure 4 is a schematic structural diagram of the adjusting sleeve of the utility model;

[0022] Figure 5 is a schematic structural diagram of the rotating shaft of the utility model.

[0023] In the figure: 1. Fishing head sleeve; 11. Drain hole; 2. Fishing joint; 21. Connecting plate; 22. Connecting head; 23. Connecting sleeve column; 24. Right-angle chute I; 25. Hexagon socket head cap screw; 3. Adjusting sleeve; 31. Sliding sleeve; 32. Limit chute; 33. Right-angle chute II; 34. Toothed baffle; 4. Rotating shaft; 41. Rotating column; 42. Rotating head; 43. Connecting shaft; 44. Installation groove; 45. Steel sheet; 46. Hexagon socket countersunk head screw; 47. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with the specific embodiments:

[0025] As Figure 1-2As shown in the figure, the present utility model provides an improved 140 new type wireline drill tool fishing tool, which includes a fishing head sleeve 1. A fishing joint 2 is fixedly installed at the top of the fishing head sleeve 1. An adjusting sleeve 3 is slidably sleeved at the top of the fishing joint 2. A rotating shaft 4 that penetrates up and down is slidably connected to the middle of the fishing joint 2. Six drain holes 11 are annularly arranged below the inner surface of the fishing head sleeve 1. The drain holes 11 penetrate to the inner surface of the fishing head sleeve 1. The drain holes 11 are 15 cm away from the bottom of the fishing head sleeve 1. The diameter of the drain holes 11 is 1 cm, and the spacing between two adjacent drain holes 11 is 62.8 mm;

[0026] By arranging six drain holes 11 on the fishing head sleeve 1, the flow channel between the inside and outside of the fishing tool is improved. This design change has been proven by engineering practice to significantly increase the speed of the fishing tool during lowering and lifting, thereby shortening the entire fishing operation time and improving work efficiency. In addition, this design also helps to reduce the retention of viscous substances and solid particles in the mud, thereby enhancing the performance and reliability of the fishing tool.

[0027] As Figures 3-5As shown in the figure, the utility model provides an improved 140 new type wireline drill tool fishing tool. The fishing joint 2 includes a connecting plate 21, which is fixedly installed at the top of the fishing head sleeve 1. The bottom of the connecting plate 21 is fixedly connected with a connecting head 22, and the top of the connecting plate 21 is fixedly connected with a connecting sleeve column 23. Inner hexagon socket head cap screws 25 are threadedly connected to the front and rear sides of the top outer surface of the connecting sleeve column 23. A right-angle sliding groove one 24 is opened on the left outer surface of the connecting sleeve column 23. The adjusting sleeve 3 includes a sliding sleeve 31, which is slidably sleeved on the outer surface of the connecting sleeve column 23. Limiting sliding grooves 32 are opened on the front and rear sides of the upper outer surface of the sliding sleeve 31. The outer surface of the inner hexagon socket head cap screw 25 is slidably connected with the inner surface of the limiting sliding groove 32. The setting of the limiting sliding groove 32 can ensure the stability of the sliding sleeve 31 during use, and through the sliding of the inner hexagon socket head cap screw 25 in the limiting sliding groove 32, the tightness of the connection can be ensured. A right-angle sliding groove two 33 is opened on the left bottom end of the sliding sleeve 31. Eight toothed baffles 34 are fixedly connected to the upper and lower sides in the horizontal direction of the right-angle sliding groove two 33. The rotating shaft 4 includes a rotating column 41, which is slidably connected to the bottom of the limiting sliding groove 32. The bottom end of the rotating column 41 is fixedly connected with a rotating head 42, and the top of the rotating column 41 is fixedly connected with a connecting shaft 43. The top end of the connecting shaft 43 penetrates into the inner surface of the connecting sleeve column 23 to ensure the tight connection between the rotating shaft 4 and the connecting sleeve column 23. An installation groove 44 is opened on the left side of the top outer surface of the connecting shaft 43. A steel sheet 45 is fixedly installed on the inner surface of the installation groove 44. The front end of the steel sheet 45 penetrates into the inner side of the right-angle sliding groove two 33. By sliding the steel sheet 45 between adjacent toothed baffles 34, the adjustment of the gear position is realized. The right side of the steel sheet 45 is movably connected with an inner hexagon round concave head screw 46, and the right end of the inner hexagon round concave head screw 46 is threadedly connected with the inside of the connecting shaft 43. The steel sheet 45 can be installed inside the installation groove 44 through the inner hexagon round concave head screw 46. A spring 47 is fixedly installed on the top of the rotating column 41, and the top end of the spring 47 is fixedly connected with the bottom end of the limiting sliding groove 32;

[0028] By moving the adjusting sleeve 3 and the fishing joint 2 up and down, the switching between different gear positions can be realized. In this process, the fixed steel sheet 45 will be stuck between the gear positions of adjacent toothed baffles 34, and the compression and release of the spring 47 provide the force required for the rotation of the rotating shaft 4, so that the gear position can be changed. During the normal lowering process, if the force is evenly applied, the gear position will remain unchanged. However, when the external force changes, such as increasing the up and down pulling force or when the speed suddenly changes, the gear position will switch forward. Through eight such operations, the eight gear positions will fall off in sequence and finally separate from the core inner tube, completing the entire core fishing work.

[0029] Next, the working principle of the improved 140 new type wireline drill tool fishing tool will be specifically described.

[0030] AsFigures 1-5 As shown, by adjusting the up-and-down movement of the adjusting sleeve 3 and the fishing sub 2, the gear shift is realized. The fixed steel sheet 45 is embedded between the toothed baffles 34, and the spring 47 provides power for the rotation of the rotating shaft 4. During the normal lowering process, the gear remains stable. However, once the external force changes, the gear will switch. After eight operations, the eight gears fall off in sequence, and the core inner tube separates accordingly, thus completing the fishing operation. The drainage holes 11 designed on the fishing head sleeve 1 optimize the flow of the mud, which not only improves the fishing speed, but also shortens the operation time, thereby enhancing the operation efficiency. In addition, this design reduces the retention of viscous substances and solid particles in the mud, thus enhancing the performance and reliability of the fishing tool.

[0031] The above has generally described the present utility model in detail, but based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. An improved 140 new type of wireline drill tool fishing tool, characterized in that: It includes a fishing head sleeve (1). A fishing joint (2) is fixedly installed at the top of the fishing head sleeve (1). An adjusting sleeve (3) is slidably sleeved on the top of the fishing joint (2). A rotating shaft (4) that penetrates up and down is slidably connected to the middle of the fishing joint (2). Six drain holes (11) are annularly arrayed below the inner surface of the fishing head sleeve (1), and the drain holes (11) penetrate to the inner surface of the fishing head sleeve (1).

2. An improved 140 new type wireline drill tool fishing tool according to claim 1, characterized in that: The drain holes (11) are 15 cm away from the bottom of the fishing head sleeve (1). The diameter of the drain holes (11) is 1 cm, and the distance between adjacent two drain holes (11) is 62.8 mm.

3. An improved 140 new type wireline drill tool fishing tool according to claim 1, characterized in that: The fishing joint (2) includes a connecting plate (21). The connecting plate (21) is fixedly installed at the top of the fishing head sleeve (1). A connecting head (22) is fixedly connected to the bottom of the connecting plate (21). A connecting sleeve column (23) is fixedly connected to the top end of the connecting plate (21).

4. An improved 140 new-type wireline drill tool fishing tool according to claim 3, characterized in that: Inner hexagon socket head cap screws (25) are threadedly connected to both the front and rear sides of the outer surface of the connecting sleeve column (23) at the top. A right-angle sliding groove one (24) is opened on the left side of the outer surface of the connecting sleeve column (23).

5. An improved 140 new type wireline drill tool fishing tool according to claim 4, characterized in that: The adjusting sleeve (3) includes a sliding sleeve (31). The sliding sleeve (31) is slidably sleeved on the outer surface of the connecting sleeve column (23). Limiting sliding grooves (32) are opened on both the front and rear sides of the upper part of the outer surface of the sliding sleeve (31). The outer surface of the inner hexagon socket head cap screw (25) is slidably connected to the inner surface of the limiting sliding groove (32). A right-angle sliding groove two (33) is opened on the left side of the bottom end of the sliding sleeve (31). Eight tooth-shaped baffles (34) are fixedly connected to both the upper and lower sides in the horizontal direction of the right-angle sliding groove two (33).

6. An improved 140 new type wireline drill tool fishing tool according to claim 5, characterized in that: The rotating shaft (4) includes a rotating column (41). The rotating column (41) is slidably connected to the bottom of the limiting sliding groove (32). A rotating head (42) is fixedly connected to the bottom end of the rotating column (41). A connecting shaft (43) is fixedly connected to the top of the rotating column (41). The top end of the connecting shaft (43) penetrates to the inner surface of the connecting sleeve column (23).

7. An improved 140 new type wireline drill tool fishing tool according to claim 6, characterized in that: An installation groove (44) is opened on the left side of the top of the outer surface of the connecting shaft (43). A steel sheet (45) is fixedly installed on the inner surface of the installation groove (44). The front end of the steel sheet (45) penetrates to the inner side of the right-angle sliding groove two (33). The right side of the steel sheet (45) is movably connected to an inner hexagon round concave head screw (46). The right end of the inner hexagon round concave head screw (46) is threadedly connected to the inside of the connecting shaft (43).

8. An improved 140 new type wireline drill tool fishing tool according to claim 7, characterized in that: A spring (47) is fixedly installed at the top of the rotating column (41). The top end of the spring (47) is fixedly connected to the bottom end of the limiting sliding groove (32).

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