Quick disassembly type thread protection device

Abstract

The utility model relates to the technical field of oil and gas drilling, in particular to a quick-disassembly type thread protection device which comprises a clamping sleeve connected to a sleeve port in a sleeving mode, a locking assembly used for locking the clamping sleeve and an adjusting wrench used for adjusting the locking assembly. The clamping sleeve comprises a sleeve body and a spring ring body pre-embedded in the sleeve body, a ring body sleeve is fixed at the tail end of the spring ring body, and the locking assembly is assembled with the ring body sleeve through a screw; when the clamping sleeve is mounted and dismounted, an adjusting wrench is adopted to drive the locking assembly, clamping and loosening of the spring ring body are achieved, and then quick dismounting and mounting are achieved. According to the quick disassembly type thread protection device, the overall structure is simple, the spring ring body is embedded, a firm framework structure is formed, more durable and stable protection is provided, the operation mode is simple and quick, physical output and fatigue feeling of an operator are reduced, the operation risk is reduced, quick assembly and disassembly can be achieved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas drilling technology, specifically a quick-release thread protection device. Background Technology

[0002] Currently, the protection of oil casing threads in drilling operations typically uses protective threads. During disassembly and assembly, multiple people are usually required to manually rotate them, which is very troublesome and time-consuming. If the casing is damaged during transportation, it also needs to be rotated with a wrench to dislodge it, which is time-consuming, labor-intensive, delays the casing installation speed, and slows down the overall construction progress. Utility Model Content

[0003] The purpose of this utility model is to provide a thread protection device that can replace traditional thread protectors, protect the sleeve threads while enabling quick disassembly and assembly, and reduce the labor intensity of operators.

[0004] To achieve the above objectives, this utility model provides the following technical solution;

[0005] A quick-release thread protection device includes a clamping sleeve fitted onto the end of a sleeve, a locking assembly for locking the clamping sleeve, and an adjusting wrench for adjusting the locking assembly.

[0006] The clamping sleeve includes a sleeve body and a spring coil body pre-embedded in the sleeve body. The end of the spring coil body is fixed with a coil body sleeve. The locking assembly is assembled with the coil body sleeve using screws. When installing and removing the clamping sleeve, an adjusting wrench is used to drive the locking assembly to clamp and release the spring coil body, thereby achieving quick assembly and disassembly.

[0007] Furthermore, the sleeve is an open-type ring, and the two ends of the sleeve are provided with mounting horizontal holes for installing locking components. Each mounting horizontal hole is provided with a sleeve hole for installing the ring sleeve in a vertical direction.

[0008] Furthermore, the locking assembly includes a locking front block and a locking rear block respectively installed in two mounting transverse holes, and a locking rod assembled in the locking front block and the locking rear block; the end of the locking rod is provided with a thread, and a nut is used to screw the locking rod to the locking rod; the front end of the locking rod is provided with a pin for assembly with the locking front block.

[0009] Furthermore, both the front locking block and the rear locking block are provided with locking screw holes.

[0010] Furthermore, the locking front block extends with a locking cylinder, and the locking cylinder has a guide groove for guiding the pin;

[0011] Furthermore, the end of the locking rod engages with the shape of the actuating end of the adjusting wrench;

[0012] Furthermore, the locking rod is provided with an adjusting block for adjusting rotation in the middle, and the adjusting block is provided with a hole that engages with the shape of the actuating end of the adjusting wrench;

[0013] Furthermore, the sleeve is integrally molded from oil-resistant rubber;

[0014] Furthermore, the inner wall of the sleeve is provided with protruding teeth;

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In operation, the locking assembly is first adjusted using an adjusting wrench to ensure it reaches a suitable working stroke, guaranteeing that the inner diameter of the clamping sleeve is larger than the threaded end of the sleeve. The clamping sleeve is then fitted onto the threaded end, and the locking assembly is rotated and locked using the adjusting wrench. The locking assembly drives the coiled sleeve, which in turn drives the spring coil to contract and tighten, ensuring close contact between the sleeve and the sleeve for stable clamping protection. When removal is required, the adjusting wrench is turned in the opposite direction, causing the locking assembly to drive the coiled sleeve, opening the spring coil and thus increasing the overall inner diameter of the sleeve.

[0017] This quick-release thread protection device features a simplified overall structure and a pre-embedded spring coil, forming a robust skeleton structure that provides more durable and stable protection. Its simple and quick operation reduces operator fatigue and operational risks, enabling rapid installation and disassembly and significantly improving work efficiency. Attached Figure Description

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the sleeve of this utility model;

[0020] Figure 3 This is a schematic diagram of the locking component of this utility model. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] refer to Figure 1-3 As shown, a quick-release thread protection device includes a clamping sleeve 1 sleeved on the end of the sleeve 3, a locking assembly 2 for locking the clamping sleeve 1, and an adjusting wrench 4 for adjusting the locking assembly 2.

[0023] The clamping sleeve 1 includes a sleeve body 11 and a spring coil 14 pre-embedded in the sleeve body 11. The end of the spring coil 14 is fixed with a coil sleeve 15. The locking assembly 2 is assembled with the coil sleeve 15 using screws 25. When the clamping sleeve 1 is installed and removed, the locking assembly 2 is driven by an adjusting wrench 4 to clamp and release the spring coil 14, thereby achieving quick installation and removal.

[0024] In actual use, first adjust the locking component 2 with the adjusting wrench 4 to make it enter the appropriate working stroke, ensuring that the inner diameter of the clamping sleeve 1 is larger than the threaded end of the sleeve 3; then put the clamping sleeve 1 on the threaded end, and insert the adjusting wrench 4 into the locking component 2 for rotation and locking; the locking component 2 drives the coil sleeve 15, and the coil sleeve 15 further drives the spring coil 14 to contract and tighten, ensuring that the sleeve 11 and the sleeve 3 are in close contact, achieving stable clamping protection. When it is necessary to remove, turn the adjusting wrench 4 in the opposite direction to the locking component 2, and the locking component 2 drives the coil sleeve 15 to open the spring coil 14, thereby increasing the overall inner diameter of the sleeve 11.

[0025] This quick-release thread protection device features a simplified overall structure and a pre-embedded spring coil, forming a robust skeleton structure that provides more durable and stable protection. Its simple and quick operation reduces operator fatigue and operational risks, enabling rapid installation and disassembly and significantly improving work efficiency.

[0026] In this embodiment, the sleeve 11 is an open-type ring, and the two ends of the sleeve are provided with mounting horizontal holes 12 for installing the locking component 2. Each mounting horizontal hole 12 is vertically provided with a sleeve hole 13 for installing the ring sleeve 15. The open-type ring design of the sleeve 11 can achieve stepless adjustment of the opening size through the locking component 2 set in the mounting horizontal hole 12, which can better adapt to various sizes of sleeves 3. The screw 25 is assembled in the ring sleeve 15 through the sleeve hole 13 and screwed into the locking component 2.

[0027] In this embodiment, the locking assembly 2 includes a locking front block 21 and a locking rear block 22 respectively installed in two mounting horizontal holes 12, and a locking rod 23 assembled in the locking front block 21 and the locking rear block 22; the locking rod 23 has a thread at its end, and a nut 24 is used to screw the locking rod 23 to the locking front block 21; the locking rod 23 has a pin 231 at its front end for assembly with the locking front block 21; in this embodiment, both the locking front block 21 and the locking rear block 22 are provided with locking screw holes 26; the screw 25 is assembled with the locking front block 21 and the locking rear block 22 by screwing into the locking screw holes 26; the locking rod 23 passes through the locking front block 21 and the locking rear block 22 and is tightened by the nut 24; the rotation of the locking rod 23 pulls the locking front block 21 and the locking rear block 22, thereby pulling the sleeve 15, and finally tightening the sleeve 11.

[0028] In this embodiment, the locking front block 21 extends with a locking cylinder 211, and the locking cylinder 211 has a guide groove 212 for guiding the pin 231. In this embodiment, the end of the locking rod 23 engages with the shape of the actuating end of the adjusting wrench 4. In this embodiment, the middle part of the locking rod 23 is provided with an adjusting block 27 for adjusting rotation, and the adjusting block 27 has a hole that engages with the shape of the actuating end of the adjusting wrench 4. The adjusting block 27 is used to match the adjusting wrench 4 to rotate the locking rod 23. When the screw 25 passes through the sleeve 15 and is screwed into the locking front block 21, the guide groove 212 on the locking cylinder 211 is used to guide and restrict the pin 231, thereby locking the return stroke of the locking rod 23 and limiting the maximum inner diameter of the sleeve 11. The adjusting wrench 4 can be adjusted by rotation from the end or by the adjusting block 7 in the middle, which is more convenient for the operator.

[0029] In this embodiment, the sleeve 11 is integrally molded from oil-resistant rubber;

[0030] In this embodiment, the inner wall of the sleeve 11 is provided with serrated teeth 16; the serrated teeth 16 are more conducive to tight engagement with the thread at the end of the sleeve 3, ensuring that the sleeve 11 clamps and protects the thread, and avoiding other impurities, dust and moisture from affecting the performance of the thread.

[0031] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by the spirit of this utility model.

Claims

1. A quick-release thread protection device, characterized in that, Includes a clamping sleeve (1) fitted onto the end of the sleeve (3), a locking assembly (2) for locking the clamping sleeve (1), and an adjusting wrench (4) for adjusting the locking assembly (2); The clamping sleeve (1) includes a sleeve body (11) and a spring coil body (14) pre-embedded in the sleeve body (11). The end of the spring coil body (14) is fixed with a coil body sleeve (15). The locking assembly (2) is assembled with the coil body sleeve (15) using screws (25). When the clamping sleeve (1) is installed and removed, the locking assembly (2) is driven by an adjusting wrench (4) to clamp and release the spring coil body (14), thereby achieving quick assembly and disassembly.

2. The quick-release thread protection device according to claim 1, characterized in that, The sleeve (11) is an open ring. The sleeve has mounting horizontal holes (12) at both ends for installing the locking assembly (2). Each mounting horizontal hole (12) has a sleeve hole (13) for installing the ring sleeve (15) in the vertical direction.

3. The quick-release thread protection device according to claim 2, characterized in that, The locking assembly (2) includes a locking front block (21) and a locking rear block (22) respectively installed in two mounting transverse holes (12), and a locking rod (23) assembled in the locking front block (21) and the locking rear block (22); the locking rod (23) is threaded at its end and is screwed to the locking rod (23) with a nut (24); the front end of the locking rod (23) is provided with a pin (231) for assembly with the locking front block (21).

4. A quick-release thread protection device according to claim 3, characterized in that, Both the front locking block (21) and the rear locking block (22) are provided with locking screw holes (26).

5. A quick-release thread protection device according to claim 4, characterized in that, The locking front block (21) extends with a locking cylinder (211), which has a guide groove (212) for guiding the pin (231).

6. A quick-release thread protection device according to claim 5, characterized in that, The end of the locking rod (23) engages with the actuating end of the adjusting wrench (4).

7. A quick-release thread protection device according to claim 3, characterized in that, The locking rod (23) is provided with an adjusting block (27) for adjusting rotation in the middle part, and the adjusting block (27) is provided with a hole that engages with the shape of the actuating end of the adjusting wrench (4).

8. A quick-release thread protection device according to claim 2, characterized in that, The sleeve (11) is integrally molded from oil-resistant rubber.

9. A quick-release thread protection device according to claim 8, characterized in that, The inner wall of the sleeve (11) is provided with protruding teeth (16).

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