Novel multifunctional annular oxide skin cutter

Abstract

The novel multifunctional annular oxide skin cutter comprises a bottom ring, an inner supporting mechanism used for supporting the interior of a pipeline is arranged on the inner side of the bottom ring, a collecting box is in bolting connection with one side of the top of the bottom ring, vertical rods are in bolting connection with the top of the bottom ring at equal intervals, and a top ring is in bolting connection with the tops of the vertical rods; the top of the top ring is provided with an outer supporting mechanism for supporting the outside of the pipeline, and a moving mechanism for annularly moving and cutting is arranged between the bottom ring and the top ring. Through cooperative arrangement of the inner supporting mechanism and the outer supporting mechanism, the advantage of stably supporting a pipe is achieved, the stability and the effect in the cutting process are guaranteed by adopting a mode of supporting the inner side and the outer side at the same time, and the inner supporting mechanism can support the inner side wall in a thread driving mode; the outer supporting mechanism can support the pipe through outer side contact type horizontal movement, and assists the pipe in stable annular cutting during rotation.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a novel multifunctional annular oxide skin cutting tool. Background Art

[0002] Polyethylene (PE) materials are widely used in urban gas pipe network systems due to their excellent chemical stability and mechanical properties, especially in the field of gas pipeline connection technology. Among them, electric fusion connection has been widely used as an efficient and reliable connection method. The electric fusion connection technology heats the built-in resistance wire of the electric fusion sleeve to melt the contact part of the PE pipe and the sleeve, and forms a strong bond after cooling, thereby achieving high-quality connection. Its easy operation and high connection strength make it one of the preferred connection methods in gas pipe network construction.

[0003] However, during the long-term use of PE gas pipelines, due to environmental factors such as sunlight exposure and oxidation, a layer of oxide scale will gradually form on the surface of the pipe. The formation of oxide scale will not only weaken the mechanical properties of the PE pipe, but also have an adverse effect on the welding quality of the electric fusion welding area. Before performing electric fusion connection or pipeline repair work, it is crucial to remove the oxide scale on the surface of the pipe, because the presence of oxide scale will significantly reduce the bonding quality of electric fusion welding, and may even cause poor or no fusion between the electric fusion joint and the pipe, increase the risk of gas leakage, and endanger the safe operation of the gas pipeline network.

[0004] Therefore, before the electric fusion welding operation, the surface of the pipe at the welding part must be thoroughly descaled to ensure high-quality fusion of the welded joint. This process is of great significance to ensure the long-term stable operation of the gas pipeline system, and can effectively reduce the risk of leakage caused by poor welding quality and improve the safety and reliability of pipeline operation;

[0005] The existing removal method uses a manual scraper to remove, which is laborious and does not meet the size requirements.

[0006] In view of the above technical problems, a rotary scraper is disclosed in the publication No. CN205219239U, which can be used to remove the outer surface material of the PE pipe to facilitate the welding of the electric fusion sleeve. The scraper is positioned with the inner diameter of the PE pipe and the handle is rotated. The scraper rotates along the outer surface of the PE pipe and moves along the axial direction of the PE pipe, thereby removing the outer surface material of the PE pipe.

[0007] The above patents also have the following deficiencies: they cannot solve the defects of deformation of small-diameter PE gas pipelines at the repair site and poor cutting quality of the pipe surface and inability to collect the cutting waste. Summary of the invention

[0008] The purpose of the present invention is to provide a new type of multifunctional annular oxide scale cutting tool, which has the advantages of being able to provide stable support to prevent deformation during the emergency repair of pipes, while being able to stably improve the cutting quality, and being able to collect the waste chips generated by cutting, while adopting the effect of simultaneous internal and external support to avoid deformation, and being able to improve the cutting effect and quality by adjusting the cutting depth and moving the cutting as required, so as to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a novel multifunctional annular oxide scale cutting tool, comprising a bottom ring:

[0010] An inner support mechanism for supporting the inside of the pipeline is arranged on the inner side of the bottom ring, a collecting box is bolted to one side of the top of the bottom ring, vertical rods are bolted to the top of the bottom ring at equal intervals, a top ring is bolted to the top of the vertical rods, the top of the top ring is arranged on the outer support mechanism for supporting the outside of the pipeline, a moving mechanism for circular moving cutting is arranged between the bottom ring and the top ring, and an adjusting mechanism for adjusting the cutting depth is arranged on one side of the moving mechanism;

[0011] The inner support mechanism includes a connecting component and a deformation component, wherein the connecting component is arranged on the inner side of the bottom ring, and the deformation component is arranged on the outer side of the connecting component;

[0012] The moving mechanism comprises a threaded component, a pulling component and an adsorption component, wherein the threaded component is arranged on the outside of the vertical rod, the pulling component is arranged inside the threaded component, and the adsorption component is arranged on the outside of the pulling component;

[0013] The adjusting mechanism comprises a sliding component, a locking component and an elastic component. The sliding component is arranged on one side of the threaded component, the locking component is arranged inside the sliding component, and the elastic component is arranged inside the locking component.

[0014] Exemplarily, the connection assembly includes an inner support frame, which is fixedly mounted on the inner wall of the bottom ring, and the inner wall of the inner support frame is rotatably connected to a first screw rod, and a rotating handle is fixedly mounted on the bottom end of the first screw rod.

[0015] Exemplarily, the deformation assembly includes a connecting ring, which is respectively arranged at the top and the bottom of the outer side of the first screw rod, and the inner end of the connecting ring is rotatably connected to the first connecting plate;

[0016] The connecting ring at the top is threadedly connected to the first screw rod, and the connecting ring at the bottom is rotatably connected to the first screw rod. Connecting rods are fixedly installed on the outer sides of the inner ends of the two groups of the first connecting plates, and the outer sides of the connecting rods are slidably connected to the second connecting plates. The outer sides of the two ends of the second connecting plates are provided with through holes, and the connecting rods are located inside the through holes.

[0017] Exemplarily, the threaded assembly includes a second screw rod, which is rotatably connected between the bottom ring and the top ring. A connecting seat is sleeved on the outer side of the second screw rod, and the connecting seat is slidably connected to one group of vertical rods.

[0018] Exemplarily, the pulling assembly includes a pull rod, which is slidably connected inside the connecting seat, a pull handle is fixedly installed on one end of the pull rod, and an adapter strip is fixedly installed on the other end of the pull rod.

[0019] Exemplarily, the adsorption assembly includes a first magnetic ring, which is fixedly mounted at one end of the inner cavity of the connecting seat, and a second magnetic ring and a connecting block are fixedly mounted on the outer side of the pull rod, respectively, and the second magnetic ring and the first magnetic ring are magnetically adsorbed.

[0020] Exemplarily, the sliding assembly includes a slider, the slider is fixedly mounted on one side of the connecting seat, an adapter box is slidably connected to the outer side of the slider, and a knife group is bolted to one end of the adapter box.

[0021] Exemplarily, the locking assembly includes an adapter seat, which is fixedly mounted on one side of the slider, and the internal thread of the adapter seat is connected to a threaded handle.

[0022] Exemplarily, the elastic component includes a spring, the spring is welded to one end of the inner cavity of the adapter box, and an abutment plate is welded to one end of the spring.

[0023] Exemplarily, the external support mechanism includes limit grooves, which are equidistantly spaced at the top of the top ring, the bottom of the inner cavity of the limit groove is threadedly connected with a fastening bolt, the inside of the limit groove is slidably connected with a movable plate, a limit hole is opened on the top of the movable plate, the fastening bolt passes through the movable plate through the limit hole, and the inner end of the movable plate is rotatably connected with a roller.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention achieves the advantage of stable support for the pipe by coordinating the inner support mechanism and the outer support mechanism, and adopts the method of simultaneous inner and outer support to ensure stability and effect during the cutting process. The inner support mechanism can support the inner wall by means of threaded drive, while the outer support mechanism can support the pipe by outer contact horizontal movement and assist it in stable annular cutting when rotating.

[0026] 2. The present invention is equipped with a movable mechanism and an adjusting mechanism for annular cutting, which is not only conducive to adjusting the required state, but also can adjust the position of the tool to adapt to small-diameter pipes of different models. The movable mechanism can move up and down in a threaded manner, and can also be manually pushed and pulled in the unthreaded state. The adjusting mechanism can directly contact the pipe for cutting, and can also adjust the cutting depth.

[0027] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the turning handle of the present invention;

[0030] Figure 3 This is a schematic diagram of the connecting rod structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the limiting groove structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the second screw rod structure of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the threaded handle of the present invention.

[0034] In the figure: 1. bottom circle; 2. inner supporting mechanism; 21. inner supporting frame; 22. first screw rod; 23. rotating handle; 24. first connecting plate; 25. connecting rod; 26. second connecting plate; 27. perforation; 28. connecting circle; 3. vertical rod; 4. top circle; 5. outer supporting mechanism; 51. limiting groove; 52. fastening bolt; 53. moving plate; 54. limiting hole; 55. roller; 6. collecting box; 7. moving mechanism; 71. connecting seat; 72. pulling rod; 73. adapting strip; 74. first magnetic ring; 75. second magnetic ring; 76. connecting block; 77. pulling handle; 78. second screw rod; 8. adjusting mechanism; 81. sliding block; 82. adapting box; 83. knife group; 84. adapting seat; 85. threaded handle; 86. spring; 87. abutment plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 6 As shown, the present invention provides a novel multifunctional annular oxide scale cutting tool, comprising a bottom ring 1, an inner supporting mechanism 2 for supporting the inside of a pipeline is arranged on the inner side of the bottom ring 1, a collecting box 6 is bolted to one side of the top of the bottom ring 1, vertical rods 3 are bolted to the top of the bottom ring 1 at equal intervals, a top ring 4 is bolted to the top of the vertical rods 3, the top of the top ring 4 is arranged on an outer supporting mechanism 5 for supporting the outside of the pipeline, a moving mechanism 7 for annular moving cutting is arranged between the bottom ring 1 and the top ring 4, and an adjusting mechanism 8 for adjusting the cutting depth is arranged on one side of the moving mechanism 7.

[0037] The vertical rod 3 and the top ring 4 play the role of auxiliary connection support; the outer support mechanism 5 realizes the outer side support operation; and the collection box 6 is conducive to collecting the waste chips generated by cutting.

[0038] The inner support mechanism 2 includes a connecting component and a deformation component. The connecting component is arranged on the inner side of the bottom ring 1, and the deformation component is arranged on the outer side of the connecting component, thereby realizing the function of inner side support to prevent the pipe from being deformed.

[0039] The moving mechanism 7 includes a threaded component, a pulling component and an adsorption component. The threaded component is arranged on the outside of the vertical rod 3, the pulling component is arranged inside the threaded component, and the adsorption component is arranged on the outside of the pulling component, which can perform circular cutting operations when moving up and down.

[0040] The adjusting mechanism 8 includes a sliding component, a locking component and an elastic component, wherein the sliding component is arranged on one side of the threaded component, the locking component is arranged inside the sliding component, and the elastic component is arranged inside the locking component. It can directly contact the pipe for cutting and can also adjust the cutting depth.

[0041] like Figure 2 and 3 As shown, the connecting assembly includes an inner support frame 21, which is fixedly mounted on the inner wall of the bottom ring 1. The inner wall of the inner support frame 21 is rotatably connected to a first screw rod 22, and a rotating handle 23 is fixedly mounted on the bottom end of the first screw rod 22 to facilitate support during rotation.

[0042] like Figure 2 and 3As shown, the deformation assembly includes a connecting ring 28, which is respectively arranged at the top and bottom of the outer side of the first screw rod 22, and the inner end of the connecting ring 28 is rotatably connected to the first connecting plate 24, which can be realized.

[0043] The top connecting ring 28 is threadedly connected to the first screw rod 22, and the bottom connecting ring 28 is rotatably connected to the first screw rod 22. The outer sides of the inner ends of the two groups of first connecting plates 24 are fixedly installed with connecting rods 25, and the outer sides of the connecting rods 25 are slidably connected to the second connecting plates 26. The outer sides of both ends of the second connecting plates 26 are provided with through holes 27. The connecting rods 25 are located inside the through holes 27, and the angle changes are generated by movement to achieve the inner side support operation.

[0044] Before operation, the pipe is first sleeved on the outside of the second connecting plate 26, and then the first screw rod 22 is rotated by the turning handle 23. At this time, the top first connecting plate 24 will be moved downward by utilizing the threaded connection relationship. When the top first connecting plate 24 moves downward, it will push the second connecting plate 26 to change its angle, thereby supporting and fixing the inner wall of the pipe.

[0045] like Figure 6 As shown, the threaded assembly includes a second screw rod 78, which is rotatably connected between the bottom circle 1 and the top circle 4. A connecting seat 71 is sleeved on the outer side of the second screw rod 78. The connecting seat 71 is slidably connected to one group of vertical rods 3 and moves horizontally in a threaded connection state.

[0046] like Figure 6 As shown, the pulling assembly includes a pull rod 72, which is slidably connected to the inside of the connecting seat 71. A pull handle 77 is fixedly installed at one end of the pull rod 72, and an adapter strip 73 is fixedly installed at the other end of the pull rod 72. The threaded connection with the second screw rod 78 can be released by pulling, and the position of the connecting seat 71 can be directly adjusted manually.

[0047] like Figure 6 As shown, the adsorption assembly includes a first magnetic ring 74, which is fixedly mounted on one end of the inner cavity of the connecting seat 71. The second magnetic ring 75 and the connecting block 76 are fixedly mounted on the outer side of the pull rod 72. The second magnetic ring 75 and the first magnetic ring 74 are magnetically adsorbed and the threads are adapted according to the adsorption effect.

[0048] The figure shows the adapted state. The pull rod 72 is directly rotated. At this time, the pipe is in a fixed state, and then the entire device is driven to rotate, thereby forming a circular cutting operation. During the rotation process, the second screw rod 78 is also directly driven to rotate, and then moves upward through the threaded connection state to complete the circular cutting operation.

[0049] When the threaded connection is released, the handle 77 is directly pulled to drive the pull rod 72 to move horizontally, so that the first magnetic ring 74 and the second magnetic ring 75 are separated, and then rotated to form a misalignment.

[0050] like Figure 6 As shown, the sliding assembly includes a slider 81, which is fixedly mounted on one side of the connecting seat 71. An adapter box 82 is slidably connected to the outer side of the slider 81, and a knife group 83 is bolted to one end of the adapter box 82 to perform sliding support operations.

[0051] like Figure 6 As shown, the locking assembly includes an adapter seat 84, which is fixedly mounted on one side of the slider 81, and the internal thread of the adapter seat 84 is connected to a threaded handle 85 to achieve the locking operation after the position is adjusted.

[0052] like Figure 6 As shown, the elastic component includes a spring 86, which is welded to one end of the inner cavity of the adapter box 82. A stop plate 87 is welded to one end of the spring 86, and the extension position can be further adjusted according to the elastic spacing.

[0053] During operation, first rotate the threaded handle 85 to release the tight state of the adapter box 82, and then directly push the adapter box 82 to drive the knife group 83 to move to contact or insert into the pipe. The required depth can be adjusted as needed. If the depth is not enough, press the adapter box 82 at this time to drive the spring 86 and the abutment plate 87 to move together, and then the spring 86 of the abutment plate 87 slider 81 will be compressed at this time, and then the threaded handle 85 is rotated to press the adapter box 82 tightly with the adapter seat 84 through the threaded connection to fix it.

[0054] like Figure 4 As shown, the outer support mechanism 5 includes a limit groove 51, which is equidistantly spaced at the top of the top ring 4. The bottom of the inner cavity of the limit groove 51 is threadedly connected with a fastening bolt 52. The inside of the limit groove 51 is slidably connected with a movable plate 53. A limit hole 54 is provided on the top of the movable plate 53. The fastening bolt 52 passes through the movable plate 53 through the limit hole 54. The inner end of the movable plate 53 is rotatably connected with a roller 55, which is convenient for supporting the outer side of the pipe to assist in the placement and deformation.

[0055] During operation, the tightening state of the fastening bolts 52 against the moving plate 53 is directly released, and then the moving plate 53 is moved to adapt to the pipe and fit therewith, and then the fastening bolts 52 can be tightened to tighten the moving plate 53 to form a locked state.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of multifunctional annular oxide skin cutting knife, characterized by: Including bottom ring (1), An inner support mechanism (2) for supporting the inside of the pipeline is arranged on the inner side of the bottom ring (1); a collecting box (6) is bolted to one side of the top of the bottom ring (1); vertical rods (3) are bolted to the top of the bottom ring (1) at equal intervals; a top ring (4) is bolted to the top of the vertical rods (3); the top of the top ring (4) is arranged on an outer support mechanism (5) for supporting the outside of the pipeline; a moving mechanism (7) for circular moving cutting is arranged between the bottom ring (1) and the top ring (4); and an adjusting mechanism (8) for adjusting the cutting depth is arranged on one side of the moving mechanism (7); The inner support mechanism (2) comprises a connecting component and a deformation component, wherein the connecting component is arranged on the inner side of the bottom ring (1), and the deformation component is arranged on the outer side of the connecting component; The moving mechanism (7) comprises a threaded component, a pulling component and an adsorption component, wherein the threaded component is arranged on the outside of the vertical rod (3), the pulling component is arranged inside the threaded component, and the adsorption component is arranged on the outside of the pulling component; The adjustment mechanism (8) comprises a sliding component, a locking component and an elastic component, wherein the sliding component is arranged on one side of the threaded component, the locking component is arranged inside the sliding component, and the elastic component is arranged inside the locking component.

2. A novel multifunctional annular oxide skin cutting tool according to claim 1, characterized in that: The connection assembly comprises an inner support frame (21), wherein the inner support frame (21) is fixedly mounted on the inner side wall of the bottom ring (1), the inner side wall of the inner support frame (21) is rotatably connected to a first screw rod (22), and a rotating handle (23) is fixedly mounted on the bottom end of the first screw rod (22).

3. A novel multifunctional annular oxide scale cutting tool according to claim 2, characterized in that: The deformation assembly comprises a connecting ring (28), the connecting ring (28) being respectively arranged at the top and the bottom of the outer side of the first screw rod (22), and the inner end of the connecting ring (28) being rotatably connected to the first connecting plate (24); The top connecting ring (28) is threadedly connected to the first screw rod (22), and the bottom connecting ring (28) is rotatably connected to the first screw rod (22). The outer sides of the inner ends of the two groups of the first connecting plates (24) are fixedly mounted with connecting rods (25), and the outer sides of the connecting rods (25) are slidably connected to the second connecting plates (26). The outer sides of both ends of the second connecting plates (26) are provided with through holes (27), and the connecting rods (25) are located inside the through holes (27).

4. A novel multifunctional annular oxide skin cutting tool according to claim 1, characterized in that: The threaded assembly comprises a second screw rod (78), which is rotatably connected between the bottom ring (1) and the top ring (4). A connecting seat (71) is sleeved on the outer side of the second screw rod (78), and the connecting seat (71) is slidably connected to one group of vertical rods (3).

5. A novel multifunctional annular oxide scale cutting tool according to claim 4, characterized in that: The pulling assembly comprises a pull rod (72), which is slidably connected to the inside of the connecting seat (71), a pull handle (77) is fixedly installed on one end of the pull rod (72), and an adapter strip (73) is fixedly installed on the other end of the pull rod (72).

6. A novel multifunctional annular oxide scale cutting tool according to claim 5, characterized in that: The adsorption assembly comprises a first magnetic ring (74), the first magnetic ring (74) is fixedly mounted on one end of the inner cavity of the connecting seat (71), and a second magnetic ring (75) and a connecting block (76) are fixedly mounted on the outer side of the pull rod (72), respectively, and the second magnetic ring (75) and the first magnetic ring (74) are magnetically adsorbed.

7. A novel multifunctional annular oxide scale cutting tool according to claim 1, characterized in that: The sliding assembly comprises a slider (81) a slider (81), wherein the slider (81) is fixedly mounted on one side of the connecting seat (71), an adapter box (82) is slidably connected to the outer side of the slider (81), and a knife group (83) is bolted to one end of the adapter box (82).

8. A novel multifunctional annular oxide scale cutting tool according to claim 7, characterized in that: The locking assembly comprises an adapter seat (84), the adapter seat (84) is fixedly mounted on one side of the slider (81), and the internal thread of the adapter seat (84) is connected to a threaded handle (85).

9. A novel multifunctional annular oxide scale cutting tool according to claim 8, characterized in that: The elastic component comprises a spring (86), wherein the spring (86) is welded to one end of the inner cavity of the adapter box (82), and an abutment plate (87) is welded to one end of the spring (86).

10. A novel multifunctional annular oxide scale cutting tool according to claim 1, characterized in that: The outer support mechanism (5) comprises limiting grooves (51), the limiting grooves (51) are arranged at equal intervals on the top of the top ring (4), the bottom of the inner cavity of the limiting groove (51) is threadedly connected with a fastening bolt (52), the interior of the limiting groove (51) is slidably connected with a moving plate (53), the top of the moving plate (53) is provided with a limiting hole (54), the fastening bolt (52) passes through the moving plate (53) through the limiting hole (54), and the inner end of the moving plate (53) is rotatably connected with a roller (55).

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