Disassembling and assembling tool for oil pipe thread protector
By designing a tool for removing and installing tubing wire protectors that includes a removal and installation head, a rotating rod, and a sleeve connecting rod, the problem of low efficiency caused by the variety of existing tools is solved. This tool achieves versatility and efficiency in removing and installing different types of wire protectors, and reduces the labor intensity of workers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
Existing tubing sheathing installation and removal tools require multiple tools, resulting in low work efficiency and high labor intensity for workers.
Design a tool for removing and installing oil pipe protectors, comprising a removal and installation head, a rotating rod, and a sleeve connecting rod. By changing the connection direction between the rotating rod and the removal and installation head, two different types of oil pipe protectors can be removed and installed. The length of the sleeve connecting rod can be extended by connecting the socket and the plug.
It improves the versatility and efficiency of the tools, reduces the labor intensity of workers, and avoids the need for manual lifting or pushing of oil pipes.
Smart Images

Figure CN224209870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an oil pipe tool, or more precisely, an oil pipe wire removal and installation tool. Background Technology
[0002] Typically, tubing thread protectors are protective devices for oil pipes, protecting the pipe threads from corrosion and wear. In production, tubing thread protectors come in various types, classified according to their end face structure, generally into grooved and round-hole types. Different types of thread protectors often require specialized disassembly tools, necessitating workers to prepare numerous tools and impacting work efficiency. Utility Model Content
[0003] Therefore, it is necessary to provide a tool for removing and installing oil pipe sheaths to address the aforementioned technical problems.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A tool for removing and installing tubing thread protectors, characterized in that the tool comprises a removal / installation head, a rotating rod, and a sleeve connecting rod, wherein the rotating rod is located between the removal / installation head and the sleeve connecting rod.
[0006] The disassembly / assembly head includes a large annular positioning ring and a small annular positioning ring. A positioning strip is provided between the large and small positioning rings. A pair of first through holes are provided on the end face of the large positioning ring, and a pair of second through holes are provided on the end face of the small positioning ring. The positioning strip includes a long horizontal strip body. Block-shaped positioning blocks are provided at both ends of the horizontal strip body. The outermost end of the positioning block protrudes from the edge of the large positioning ring. A connecting screw hole is provided in the middle of the horizontal strip body, and connecting pin holes are provided at both ends of the horizontal strip body. The first through hole, the second through hole, and the connecting pin hole are connected by a connecting pin. A threaded head is provided at the left end of the rotating rod, and the threaded head mates with the connecting screw hole.
[0007] In a preferred embodiment of this utility model, the left end face of the small positioning ring is coplanar with the left end face of the positioning block.
[0008] In a preferred embodiment of the present invention, the right end of the rotating rod is provided with a first connecting end face, the left end of the sleeve connecting rod is provided with a connecting plug, and the right end of the sleeve connecting rod is provided with a sleeve connecting rod insertion hole.
[0009] In a preferred embodiment of this utility model, the first connecting end face is welded to the connecting plug.
[0010] In a preferred embodiment of this utility model, a connection socket is provided on the first connection end face, and the connection socket is plugged into the connection plug.
[0011] In a preferred embodiment of this utility model, the cross-sections of the connecting socket and the connecting plug are both polygonal.
[0012] A tool for removing and installing tubing thread protectors, comprising a removal / installation head and a sleeve connecting rod.
[0013] The disassembly / assembly head includes a large annular positioning ring and a small annular positioning ring. A positioning strip is provided between the large and small positioning rings. The large positioning ring has a pair of first through holes on its end face, and the small positioning ring has a pair of second through holes on its end face. The positioning strip includes a long, horizontal strip body. Block-shaped positioning blocks are provided at both ends of the horizontal strip body. The outermost end of each positioning block protrudes from the edge of the large positioning ring. A connecting square hole is provided in the middle of the horizontal strip body, and connecting pin holes are provided at both ends of the horizontal strip body. The first through holes, second through holes, and connecting pin holes are connected by connecting pins.
[0014] The sleeve connecting rod has a connecting plug at its left end and a sleeve connecting rod insertion hole at its right end.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This utility model provides a tool for installing and removing tubing thread protectors. By changing the connection direction between the rotating rod and the installation / removal head, users can install and remove two different types of tubing thread protectors, offering good versatility and effectively improving work efficiency. When the length of a single sleeve connecting rod is insufficient, the user can extend it by using the connection socket and connector, avoiding the need to manually lift or pull the tubing before installing or removing the thread protector, reducing the labor intensity of workers and further improving work efficiency. Attached Figure Description
[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of the oil pipe wire removal and installation tool of this utility model;
[0019] Figure 2 for Figure 1 A three-dimensional exploded view of the tubing guard removal and installation tool;
[0020] Figure 3 for Figure 2 A three-dimensional structural diagram of the disassembly / assembly head;
[0021] Figure 4 for Figure 3 An exploded view of the three-dimensional structure of the disassembly / assembly head;
[0022] Figure 5 This is a schematic diagram illustrating the use of the disassembly and assembly tool of this utility model. In this case, it is aimed at the EU73 female fastener wire protector.
[0023] Figure 6 This is a schematic diagram illustrating the use of the disassembly and assembly tool of this utility model. In this case, it is aimed at the NU73 male thread protector.
[0024] Figure 7 This is a schematic diagram illustrating the use of the disassembly and assembly tool of this utility model. In this case, it is aimed at the NU73 female fastener.
[0025] Figure 8 This is a schematic diagram illustrating the use of the disassembly and assembly tool of this utility model. In this case, it is aimed at the EU73 male thread protector.
[0026] Figure 9 for Figure 8 A three-dimensional structural diagram of the EU73 male threaded wire;
[0027] Figure 10 This is a three-dimensional structural schematic diagram of another embodiment of the oil pipe wire removal and installation tool of this utility model;
[0028] Figure 11 for Figure 10 A three-dimensional exploded view of the disassembly and assembly tools in the diagram;
[0029] Figure 12 for Figure 11 A magnified view of the details of region A in the diagram;
[0030] Figure 13 This is a three-dimensional structural diagram of another embodiment of the present invention;
[0031] Figure 14 for Figure 13 A three-dimensional exploded view of the disassembly and assembly tools in the diagram;
[0032] Figure 15 for Figure 14 A magnified view of the details of region B in the diagram;
[0033] The markings in the diagram are explained as follows: 10. Disassembly / assembly head; 11. Large positioning ring; 111. First through hole; 12. Small positioning ring; 121. Second through hole; 13. Positioning strip; 131. Main body of the horizontal strip; 132. Positioning block; 133. Connecting screw hole; 1330. Connecting square hole;
[0034] 134. Connecting pin hole; 14. Connecting pin; 20. Rotating rod; 21. Threaded head; 22. First connecting end face; 221. Connecting insertion hole; 30. Sleeve connecting rod; 31. Connecting plug; 32. Sleeve connecting rod insertion hole. Detailed Implementation
[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0036] like Figures 1 to 4 As shown, the tubing wire removal and installation tool includes a removal and installation head 10, a rotating rod 20, and a sleeve connecting rod 30, with the rotating rod 20 located between the removal and installation head 10 and the sleeve connecting rod 30.
[0037] The disassembly / assembly head 10 includes a large annular positioning ring 11 and a small annular positioning ring 12. A positioning strip 13 is provided between the large positioning ring 11 and the small positioning ring 12. A pair of first through holes 111 are provided on the end face of the large positioning ring 11, and a pair of second through holes 121 are provided on the end face of the small positioning ring 12. The positioning strip 13 includes a long strip-shaped horizontal strip body 131. Block-shaped positioning blocks 132 are provided at both ends of the horizontal strip body 131. The outermost end of the positioning block 132 protrudes from the edge of the large positioning ring 11. A connecting screw hole 133 is provided in the middle of the horizontal strip body 131, and connecting pin holes 134 are provided at both ends of the horizontal strip body 131. The first through holes 111, the second through holes 121 and the connecting pin holes 134 are connected by connecting pins 14. A threaded head 21 is provided at the left end of the rotating rod 20, and the threaded head 21 cooperates with the connecting screw hole 133.
[0038] It should be noted that the left end face of the small positioning ring 12 is coplanar with the left end face of the positioning block 132.
[0039] In addition, the right end of the rotating rod 20 is provided with a first connecting end face 22, the left end of the sleeve connecting rod 30 is provided with a connecting plug 31, and the right end of the sleeve connecting rod 30 is provided with a sleeve connecting rod insertion hole 32. The first connecting end face 22 is welded to the connecting plug 31.
[0040] The working method of this tubing wire removal and installation tool is explained below.
[0041] like Figure 3 and Figure 4As shown, the connecting pin 14 passes through the corresponding first through hole 111, second through hole 121 and connecting pin hole 134. Then, the large positioning ring 11, small positioning ring 12 and positioning strip 13 are welded together to form a whole through a welding process.
[0042] like Figure 5 As shown, screw the threaded head 21 of the rotating rod 20 into the connecting screw hole 133, so that the connecting pin 14 faces the sleeve connecting rod 30, and snap the positioning block 132 into the positioning groove S1 of the corresponding EU73 female thread protector S. At this time, the sleeve connecting rod 30 can be rotated manually or electrically to make the EU73 female thread protector S rotate, thereby completing the disassembly and assembly of the EU73 female thread protector S.
[0043] It should be noted that during the rotation of the sleeve connecting rod 30, the small positioning ring 12 is located inside the EU73 female thread protector S. This helps to maintain the coaxial relationship between the disassembly and assembly tool and the EU73 female thread protector S, and facilitates the rotation of the EU73 female thread protector S.
[0044] like Figure 6 As shown, the NU73 male thread protector can be disassembled and installed in the same way.
[0045] like Figure 7 As shown, the NU73 female fastener can be disassembled and reassembled in the same way.
[0046] like Figure 8 As shown, screw the threaded head 21 of the rotating rod 20 into the connecting screw hole 133, so that the connecting pin 14 faces the positioning hole R1 at the bottom of the EU73 male thread protector R. Then, press the connecting pin 14 against the positioning hole R1. At this time, the sleeve connecting rod 30 can be driven manually or electrically to rotate the EU73 male thread protector R, thereby completing the installation and removal of the male thread protector R.
[0047] By changing the connection direction between the rotating rod 20 and the disassembly / assembly head 10, users can disassemble and assemble two different types of oil pipe protectors, which has good versatility and effectively improves work efficiency.
[0048] like Figures 10 to 12 The diagram shows another embodiment of the disassembly and assembly tool of this utility model. In this embodiment, the first connecting end face 22 is provided with a connecting socket 221, which is connected to the connecting plug 31.
[0049] In addition, both the connection socket 221 and the connection plug 31 have polygonal cross-sections.
[0050] When the length of a sleeve connecting rod 30 is insufficient, the user can extend it by cooperating with the connecting socket 221 and the connecting plug 31, avoiding the problem of manually lifting or pushing the oil pipe and then disassembling and installing the protective wire, reducing the labor intensity of workers and further improving work efficiency.
[0051] like Figures 13 to 15 The diagram shows another embodiment of the present invention. Unlike the previous embodiment, the rotating rod 20 is omitted here, and a connecting square hole 1330 is provided in the middle of the crossbar body 131 to replace the original connecting screw hole 133.
[0052] When in use, simply insert the connector 31 of the sleeve connecting rod 30 into the connecting square hole 1330. Compared with threaded connection, this plug-in connection method is more convenient and can be used for both removing and installing the wire protector.
[0053] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.
Claims
1. A tool for removing and installing oil pipe thread protectors, characterized in that, The tubing wire removal and installation tool includes a removal and installation head (10), a rotating rod (20), and a sleeve connecting rod (30), wherein the rotating rod (20) is located between the removal and installation head (10) and the sleeve connecting rod (30). The disassembly / assembly head (10) includes a large annular positioning ring (11) and a small annular positioning ring (12). A positioning strip (13) is provided between the large positioning ring (11) and the small positioning ring (12). A pair of first through holes (111) are provided on the end face of the large positioning ring (11), and a pair of second through holes (121) are provided on the end face of the small positioning ring (12). The positioning strip (13) includes a long strip-shaped horizontal body (131), and block-shaped positioning blocks (132) are provided at both ends of the horizontal body (131). The outermost end of the positioning block (132) protrudes from the edge of the large positioning ring (11). The middle part of the horizontal bar body (131) is provided with a connecting screw hole (133). The two ends of the horizontal bar body (131) are respectively provided with connecting pin holes (134). The first through hole (111), the second through hole (121) and the connecting pin hole (134) are connected by a connecting pin (14). The left end of the rotating rod (20) is provided with a threaded head (21), which cooperates with the connecting screw hole (133).
2. The tubing protector installation and removal tool according to claim 1, characterized in that, The left end face of the small positioning ring (12) is coplanar with the left end face of the positioning block (132).
3. The tubing threaded connection and disassembly tool according to claim 1, characterized in that, The rotating rod (20) has a first connecting end face (22) at its right end, the sleeve connecting rod (30) has a connecting plug (31) at its left end, and the sleeve connecting rod (30) has a sleeve connecting rod insertion hole (32) at its right end.
4. The tubing sheathing and installation tool according to claim 3, characterized in that, The first connecting end face (22) is welded to the connecting plug (31).
5. The tubing thread removal and installation tool according to claim 3, characterized in that, The first connecting end face (22) is provided with a connecting socket (221), and the connecting socket (221) is connected to the connecting plug (31).
6. The tubing threaded connection and disassembly tool according to claim 5, characterized in that, The cross-sections of the connection socket (221) and the connection plug (31) are both polygonal.
7. A tool for removing and installing oil pipe thread protectors, characterized in that, The tubing wire removal and installation tool includes a removal and installation head (10) and a sleeve connecting rod (30). The disassembly / assembly head (10) includes a large annular positioning ring (11) and a small annular positioning ring (12). A positioning strip (13) is provided between the large positioning ring (11) and the small positioning ring (12). A pair of first through holes (111) are provided on the end face of the large positioning ring (11), and a pair of second through holes (121) are provided on the end face of the small positioning ring (12). The positioning strip (13) includes a long strip-shaped horizontal strip body (131). Block-shaped positioning blocks (132) are provided at both ends of the horizontal strip body (131). The outermost end of the positioning block (132) protrudes from the edge of the large positioning ring (11). A connecting square hole (1330) is provided in the middle of the horizontal strip body (131). A connecting pin hole (134) is provided at both ends of the horizontal strip body (131). The first through hole (111), the second through hole (121), and the connecting pin hole (134) are connected by a connecting pin (14). The sleeve connecting rod (30) has a connecting plug (31) at its left end and a sleeve connecting rod insertion hole (32) at its right end.