Casing pliers with micro-indentation dental plate

Abstract

The utility model relates to the technical field of casing tongs, in particular to a casing tong with a micro-indentation tooth plate, which comprises a casing tong body and a torque monitor fixed on the surface of the casing tong body, and is characterized in that a rotary connecting seat and a lock seat are fixed on the surface of the torque monitor; one end of a protective cover is rotationally connected to the surface of the rotary connecting seat; the torque monitor has the beneficial effects that the protective cover is in a locked state and covers the surface of the screen of the torque monitor, so that the screen is protected, and when the screen of the torque monitor needs to be observed, the spring bolt retreats from the lock hole and completely retracts into the spring bolt mounting groove, so that the locked state of the protective cover is relieved, and the screen of the torque monitor is protected. The screen of the torque monitor can be exposed and observed by lifting the protective cover, and meanwhile, when the surface of the protective cover is stained with oil stains, the protective cover can be detached and cleaned, and the protective cover can be installed back after being aired.

Description

Technical Field

[0001] This utility model relates to the field of sleeve pliers technology, specifically a sleeve pliers equipped with a micro-indentation tooth plate. Background Technology

[0002] A casing wrench is a tool used in oil drilling, pipeline installation, or maintenance operations, specifically designed to tighten or loosen casing threads. Casing is a crucial structure in oil and gas wells used to secure the wellbore and isolate the formation. Its connection typically relies on precision-machined threads, therefore casing wrenches need to possess high torque and stability. The application of casing wrenches involves using a jaw plate to clamp the casing, leaving indentations, also known as thread marks. In scenarios requiring protection of the casing's inner coating, it's necessary to minimize these indentations; this necessitates the use of casing wrenches equipped with micro-indentation jaw plates.

[0003] In the prior art, a micro-marking sleeve and oil pipe power pliers disclosed in application number CN201820880712.0, examined and published by the China National Intellectual Property Administration, describes a pliers with two sets of jaw plates, installed in a square groove between the upper and lower jaw plate frames, one on each side symmetrically. These pliers can slide radially along the side of the square groove. Each set of jaw plate assemblies includes a jaw plate, micro-marking jaws, rollers, and roller shafts. The rollers are connected via roller shafts. Mounted on the jaw plate, the roller rolls along the curved surface of the inner circle of the notched gear. The jaw plate and the micro-marking jaw teeth are connected by a dovetail groove. The tooth surface of the micro-marking jaw teeth is an arc surface, which matches the casing (oil pipe) column clamped during operation. The tooth shape on the arc surface is a dotted distribution on a full arc surface. The jaw plate assembly of the back clamp includes the jaw plate and the micro-marking jaw teeth, which are connected by a dovetail groove. The tooth surface shape of the micro-marking jaw teeth is the same as that of the micro-marking jaw teeth of the main clamp. The tooth marks left after operation by this utility model are slightly dotted, effectively reducing damage to the casing (oil pipe) column. This micro-marking casing and oil pipe power clamp is a casing clamp with a micro-marking jaw plate.

[0004] However, existing torque monitors for sleeve wrenches with micro-indentation teeth lack a mechanism to protect the screen. Since the working environment of power wrenches is usually filled with various types of oil, the screen of the torque monitor is easily contaminated with oil when the sleeve wrenches with micro-indentation teeth are moved to the application site, making observation difficult. Utility Model Content

[0005] The purpose of this invention is to provide a sleeve clamp with a micro-indentation tooth plate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sleeve wrench with a micro-indentation toothed plate, comprising: a sleeve wrench body, a torque monitor fixed on the surface of the sleeve wrench body, characterized in that: a rotating connecting seat and a locking seat are fixed on the surface of the torque monitor, one end of a protective cover is rotatably connected to the surface of the rotating connecting seat, the other end of the protective cover is movably inserted into one end of a locking tongue, a locking hole is opened on the surface of the locking seat, and the other end of the locking tongue is movably inserted into the locking hole.

[0007] Preferably, a latch mounting groove is provided on the surface of the protective cover, one end of the latch is movably inserted into the latch mounting groove, and a latch spring is fixed between the end of the latch that extends into the latch mounting groove and the inner wall of the latch mounting groove.

[0008] Preferably, a handle groove is formed on the surface of the protective cover, the handle groove is connected to the latch mounting groove, a handle is slidably connected in the handle groove, the handle has an "L" shaped rod structure, one end of the handle extends into the latch mounting groove and is fixed to the surface of the latch, and the other end of the handle extends out from the handle groove.

[0009] Preferably, the protective cover has a rotating shaft mounting groove on its surface, and the rotating connector has a shaft hole on its surface. One end of the rotating shaft is movably inserted into the rotating shaft mounting groove, and the other end of the rotating shaft is movably inserted into the shaft hole.

[0010] Preferably, the rotating shaft has a circular rod structure, and a rotating shaft spring is fixed between the end of the rotating shaft that extends into the rotating shaft mounting groove and the inner wall of the groove.

[0011] Preferably, a lever window is provided on the surface of the protective cover, and a lever is slidably connected in the lever window. One end of the lever extends into the rotating shaft mounting groove and is fixed on the surface of the rotating shaft, while the other end of the lever extends out of the lever window.

[0012] Preferably, a baffle storage compartment is provided on the inner wall of both the handle groove and the lever window, and one end of the baffle is fixed on the surface of both the handle groove and the lever window, while the other end of the baffle is movably inserted into the baffle storage compartment.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The sleeve wrench with a micro-indentation toothed plate proposed in this utility model has a protective cover that covers the screen surface of the torque monitor when the protective cover is locked, thus protecting the screen. When it is necessary to observe the screen of the torque monitor, the locking tongue is withdrawn from the lock hole and fully retracted into the locking tongue mounting groove, thereby releasing the locked state of the protective cover. The protective cover can then be lifted to expose the screen of the torque monitor for observation. At the same time, if the surface of the protective cover is contaminated with oil, the protective cover can be removed for cleaning and then reinstalled after drying. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the torque monitoring device.

[0017] Figure 3 This is a schematic cross-sectional view of the present invention.

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 5 Schematic diagram of the cross-sectional structure of the shaft mounting groove;

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0021] In the diagram: 1. Torque monitor; 2. Rotary connecting seat; 3. Protective cover; 4. Lock seat; 5. Lock hole; 6. Lock tongue mounting groove; 7. Lock tongue spring; 8. Handle groove; 9. Handle; 10. Baffle storage compartment; 11. Baffle; 12. Shaft hole; 13. Rotary shaft mounting groove; 14. Rotary shaft; 15. Rotary shaft spring; 16. Lever window; 17. Lever; 18. Sleeve wrench body; 19. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1 to 6 This utility model provides a technical solution: a sleeve wrench with a micro-indentation tooth plate, comprising: a sleeve wrench body 19, a torque monitor 1 fixed on the surface of the sleeve wrench body 19, characterized in that: a rotating connecting seat 2 and a locking seat 4 are fixed on the surface of the torque monitor 1, one end of a protective cover 3 is rotatably connected to the surface of the rotating connecting seat 2, the other end of the protective cover 3 is movably inserted into one end of a locking tongue 7, a locking hole 5 is opened on the surface of the locking seat 4, and the other end of the locking tongue 7 is movably inserted into the locking hole 5.

[0024] In actual use, when the sleeve wrench body 19 is being moved to the application site, one end of the locking tongue 7 is inserted into the locking hole 5 on the surface of the lock seat 4, and the other end of the locking tongue 7 remains in the locking tongue mounting groove 6, so that the protective cover 3 is in a locked state. The protective cover 3 covers the screen surface of the torque monitor 1, thereby protecting the screen. When it is necessary to observe the screen of the torque monitor 1, the locking tongue 7 is withdrawn from the locking hole 5 and fully retracted into the locking tongue mounting groove 6, thereby releasing the locked state of the protective cover 3. The protective cover 3 is then lifted up, and the other end of the protective cover 3 is rotated along the rotating connecting seat 2 to expose the screen of the torque monitor 1 for observation.

[0025] Example 2: Based on Example 1, in order to facilitate the adjustment of the position of the latch 7, a latch mounting groove 6 is provided on the surface of the protective cover 3. One end of the latch 7 is movably inserted into the latch mounting groove 6. A latch spring 8 is fixed between the end of the latch 7 that extends into the latch mounting groove 6 and the inner wall of the latch mounting groove 6. A handle groove 9 is provided on the surface of the protective cover 3. The handle groove 9 is connected to the latch mounting groove 6. A handle 10 is slidably connected in the handle groove 9. The handle 10 has an "L" shaped rod structure. One end of the handle 10 extends into the latch mounting groove 6 and is fixed on the surface of the latch 7. The other end of the handle 10 extends out from the handle groove 9.

[0026] When the latch 7 needs to be fully retracted into the latch mounting groove 6, move the handle 10 upwards. The upward movement of the handle 10 in the handle groove 9 will cause the latch 7 to move upwards, thus retracting the latch 7 into the latch mounting groove 6. Then, simply lift the handle 10 upwards to lift the protective cover 3, at which point the latch spring 8 is compressed. When one end of the latch 7 needs to be inserted into the lock hole 5 again, lower the protective cover 3 to align the latch mounting groove 6 with the lock hole 5, and then release the handle 10. The latch spring 8 will push the latch 7 downwards under its own elasticity, allowing one end of the latch 7 to be inserted into the lock hole 5 again.

[0027] Example 3: Based on Example 2, in order to enable the disassembly and assembly of the protective cover 3, a rotating shaft mounting groove 14 is provided on the surface of the protective cover 3, and a shaft hole 13 is provided on the surface of the rotating connecting seat 2. One end of the rotating shaft 15 is movably inserted into the rotating shaft mounting groove 14, and the other end of the rotating shaft 15 is movably inserted into the shaft hole 13. The rotating shaft 15 has a circular rod structure. A rotating shaft spring 16 is fixed between the end of the rotating shaft 15 that extends into the rotating shaft mounting groove 14 and the inner wall of the groove 14. A lever window 17 is provided on the surface of the protective cover 3. A lever 18 is slidably connected in the lever window 17. One end of the lever 18 extends into the rotating shaft mounting groove 14 and is fixed on the surface of the rotating shaft 15. The other end of the lever 18 extends out of the lever window 17.

[0028] When the surface of the protective cover 3 is contaminated with oil, after using the sleeve wrench, first engage the locked position of the protective cover 3; then, move the lever 18 away from the rotating connecting seat 2. The lever 18 slides in the lever window 17, and the rotating shaft 15 moves synchronously with the lever 18, causing the rotating shaft 15 to retract completely from the shaft hole 13 and into the rotating shaft mounting groove 14. The protective cover 3 can then be removed from the torque monitor 1. The protective cover 3 is then cleaned. After cleaning and drying, move the lever 18 again to fully retract the rotating shaft 15 into the rotating shaft mounting groove 14. The rotating shaft spring 16 is then compressed, and the rotating shaft mounting groove 14 is aligned with the shaft hole 13. After that, release the lever 18. The rotating shaft spring 16, under its own elasticity, pushes one end of the rotating shaft 15 into the shaft hole 13. Finally, restore the protective cover 3 to the locked position, thus completing the installation of the protective cover 3.

[0029] Example 4: Based on Example 3, in order to prevent oil and debris from entering the lock tongue mounting groove 6 and the pivot mounting groove 14, baffle storage compartments 11 are provided on the inner walls of the handle groove 9 and the lever window 17. One end of a baffle 12 is fixed on the surface of the handle groove 9 and the lever window 17, and the other end of the baffle 12 is movably inserted into the baffle storage compartment 11.

[0030] Baffles 12 are provided on the inner walls of the handle groove 9 and the lever window 17. When the handle 10 and the lever 18 are not moved, the baffles 12 are sealed in the handle groove 9 and the lever window 17, which can prevent oil and debris from entering the lock tongue mounting groove 6 and the pivot mounting groove 14. When the handle 10 and the lever 18 are moved, the baffles 12 can go deeper into the baffle storage compartment 11, thereby avoiding the baffles 12 affecting the movement of the handle 10 and the lever 18.

[0031] In actual use, when transferring the sleeve wrench body 19 to the application site, one end of the locking tongue 7 is inserted into the locking hole 5 on the surface of the lock seat 4, and the other end of the locking tongue 7 remains in the locking tongue mounting groove 6, so that the protective cover 3 is in a locked state. The protective cover 3 covers the screen surface of the torque monitor 1, thereby protecting the screen. When it is necessary to observe the screen of the torque monitor 1, the locking tongue 7 is withdrawn from the locking hole 5 and fully retracted into the locking tongue mounting groove 6, thereby releasing the locked state of the protective cover 3. The protective cover 3 is then lifted, and the other end of the protective cover 3 rotates along the rotating connecting seat 2, thus exposing the screen of the torque monitor 1. The torque monitor 1 is used for observation. When the latch 7 needs to be fully retracted into the latch mounting groove 6, the handle 10 is turned upwards. The handle 10 moves upwards in the handle groove 9, causing the latch 7 to move upwards, thus retracting the latch 7 into the latch mounting groove 6. Then, the handle 10 is lifted upwards to lift the protective cover 3, at which point the latch spring 8 is compressed. When one end of the latch 7 needs to be inserted into the lock hole 5 again, the protective cover 3 is lowered to align the latch mounting groove 6 with the lock hole 5. Then, the handle 10 is released, and the latch spring 8, under its own elasticity, pushes the latch 7 downwards, allowing one end of the latch 7 to be inserted into the lock hole 5 again. When the surface of cover 3 is contaminated with oil, after using the sleeve wrench, first engage the locked position of cover 3; then, move lever 18 away from the rotating connecting seat 2. Lever 18 slides in lever window 17, and the rotating shaft 15 moves synchronously with lever 18, causing the rotating shaft 15 to retract completely from the shaft hole 13 and into the rotating shaft mounting groove 14. This allows cover 3 to be removed from torque monitor 1. Then, clean cover 3. After cleaning and drying, move lever 18 again to fully retract the rotating shaft 15 into the rotating shaft mounting groove 14, compressing the rotating shaft spring 16. Then align the rotating shaft mounting groove 14 with the shaft hole 13. After releasing the lever 18, the pivot spring 16 pushes one end of the pivot 15 into the pivot hole 13 under its own elasticity, and finally restores the protective cover 3 to the locked state, thus completing the installation of the protective cover 3. Baffles 12 are provided on the inner walls of the handle groove 9 and the lever window 17. When the handle 10 and the lever 18 are not moved, the baffles 12 are sealed in the handle groove 9 and the lever window 17, which can prevent oil and debris from entering the lock tongue mounting groove 6 and the pivot mounting groove 14. When the handle 10 and the lever 18 are moved, the baffles 12 can go deeper into the baffle storage compartment 11, thus avoiding the baffles 12 affecting the movement of the handle 10 and the lever 18.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cannula wrench with a micro-indentation plate, comprising: A sleeve wrench body (19) is provided, and a torque monitor (1) is fixed on the surface of the sleeve wrench body (19). The torque monitor (1) is characterized by having a rotating connecting seat (2) and a locking seat (4) fixed on the surface of the torque monitor (1). One end of a protective cover (3) is rotatably connected to the surface of the rotating connecting seat (2), and the other end of the protective cover (3) is movably inserted into one end of a locking tongue (7). A locking hole (5) is provided on the surface of the locking seat (4), and the other end of the locking tongue (7) is movably inserted into the locking hole (5).

2. The sleeve forceps with a micro-indentation tooth plate according to claim 1, characterized in that: The protective cover (3) has a latch mounting groove (6) on its surface. One end of the latch (7) is movably inserted into the latch mounting groove (6). A latch spring (8) is fixed between the end of the latch (7) that extends into the latch mounting groove (6) and the inner wall of the latch mounting groove (6).

3. A cannula wrench with a micro-indentation tooth plate according to claim 2, characterized in that: The protective cover (3) has a handle groove (9) on its surface. The handle groove (9) is connected to the latch mounting groove (6). A handle (10) is slidably connected in the handle groove (9). The handle (10) has an "L" shaped rod structure. One end of the handle (10) extends into the latch mounting groove (6) and is fixed on the surface of the latch (7). The other end of the handle (10) extends out from the handle groove (9).

4. A cannula wrench with a micro-indentation tooth plate according to claim 3, characterized in that: The protective cover (3) has a rotating shaft mounting groove (14) on its surface, and the rotating connecting seat (2) has a shaft hole (13) on its surface. One end of the rotating shaft (15) is movably inserted into the rotating shaft mounting groove (14), and the other end of the rotating shaft (15) is movably inserted into the shaft hole (13).

5. A cannula wrench with a micro-indentation tooth plate according to claim 4, characterized in that: The rotating shaft (15) has a circular rod structure, and a rotating shaft spring (16) is fixed between the end of the rotating shaft (15) that extends into the rotating shaft mounting groove (14) and the inner wall of the rotating shaft mounting groove (14).

6. A cannula wrench with a micro-indentation tooth plate according to claim 5, characterized in that: The protective cover (3) has a lever window (17) on its surface. A lever (18) is slidably connected in the lever window (17). One end of the lever (18) extends into the shaft mounting groove (14) and is fixed on the surface of the shaft (15). The other end of the lever (18) extends out of the lever window (17).

7. A cannula wrench with a micro-indentation tooth plate according to claim 6, characterized in that: The handle groove (9) and the lever window (17) are both provided with baffle storage compartments (11) on their inner walls. One end of a baffle (12) is fixed on the surface of the handle groove (9) and the lever window (17), and the other end of the baffle (12) is movably inserted into the baffle storage compartment (11).

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