Manual cutting tool for thin-wall steel pipe

Abstract

The utility model discloses a manual cutting tool for a thin-wall steel pipe, which relates to the technical field of steel pipe cutting and comprises a hook-shaped tool apron, the hook-shaped tool apron is provided with a vertical flange, the lower end of the hook-shaped tool apron is provided with a tool groove, a cutting knife is mounted in the tool groove, the upper end of the hook-shaped tool apron is provided with a sleeve, the sleeve is provided with an internal thread, and an adjusting screw rod is mounted in the sleeve. A pressing assembly is rotationally installed at the lower end of the adjusting screw rod, one side of the pressing assembly can be vertically connected with the vertical flange of the hook-shaped tool apron in a sliding mode, and a rolling wheel is installed at the lower end of the pressing assembly. The technical problem that in the prior art, when the thin-wall steel pipe is cut, vibration and deformation are prone to being generated is solved, and the quality of the cut steel pipe and the overall performance of the steel pipe are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe cutting technical field especially is related to a thin wall steel pipe manual cutting tool. BACKGROUND

[0002] In steel structure construction, thin wall steel pipe as an important building material, because its light weight, high strength and good corrosion resistance and get wide application.

[0003] Because the construction demand is various, therefore in actual use process, often need to cut thin wall steel pipe accurately to satisfy the requirement of different size and shape. Traditional steel pipe cutting tool usually relies on mechanical transmission or hydraulic power system as power source. Its main through high -speed rotating blade or grinding wheel as main cutting element, these cutting elements under the drive of motor or hydraulic motor rotates at extremely high speed. In this process, the blade or grinding wheel and steel pipe surface close contact, utilize high -speed rotation produces friction and gradually separates steel pipe material from the parent, thereby realizes the purpose of cutting.

[0004] The inventor found in the implementation process that for thin wall steel pipe, because its wall thickness is thin, the traditional cutting mode is easy to produce vibration and deformation in the cutting process, thereby influence cutting quality and the overall performance of steel pipe. SUMMARY

[0005] The embodiment of the application provides a thin wall steel pipe manual cutting tool, solve the technical problem that thin wall steel pipe is easy to produce vibration and deformation when being cut in the prior art, improve the quality of steel pipe after being cut and the overall performance of steel pipe.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme, a thin wall steel pipe manual cutting tool, including hook-shaped tool holder, hook-shaped tool holder is equipped with vertical baffle, the lower end of hook-shaped tool holder is equipped with tool groove, installs the cutter in tool groove, the upper end of hook-shaped tool holder has sleeve, sleeve has internal thread and its inside installs adjusting screw, the lower end of adjusting screw rotatably installs the compression assembly, the vertical sliding connection of one side of compression assembly can with the vertical baffle of hook-shaped tool holder, the lower end of compression assembly installs the gyro wheel. Because sleeve is installed with adjusting screw through thread cooperation, adjusting screw rotates and can drive compression assembly to move, therefore when using this tool, can fix steel pipe and then hook-shaped tool holder is engaged in the part of steel pipe to be cut, through compression assembly tight steel pipe, then the rotation of this tool around steel pipe can, this process can avoid the vibration and deformation of steel pipe, improve the quality of steel pipe after being cut and the overall performance of steel pipe.

[0007] As a further improvement of the above scheme, the end of the adjusting screw away from the pressing assembly is fixedly connected with a pressing rod, and the length of the pressing rod is not less than the length of the adjusting screw; in the manual cutting process, the operator needs to exert a certain pressure to make the tool rotate around the steel pipe, wherein the longer pressing rod can make the torque generated be larger under the same pressure, so that the tool is more easily pushed to cut.

[0008] As a further improvement of the above scheme, a rotating handle is installed on the pressing rod; through the rotating handle, the operator can more conveniently exert the rotating force to make the pressing assembly press the steel pipe.

[0009] As a further improvement of the above scheme, an adjusting nut is installed outside the adjusting screw, and the adjusting nut is located below the sleeve; after the operator rotates the adjusting screw to make the pressing assembly move downward, the adjusting nut can be rotated to make the upper end surface of the adjusting nut abut against the lower end surface of the sleeve, so that the pressing assembly can be kept pressing the steel pipe during the use of the tool to cut the steel pipe, and the loosening of the pressing assembly is avoided.

[0010] As a further improvement of the above scheme, the pressing assembly comprises a wheel seat, the upper end of the wheel seat is rotatably installed with the lower end of the adjusting screw, the lower end of the wheel seat is provided with a groove, and a roller is installed in the groove; the two sides of the wheel seat are respectively fixed with clamping plates, the two clamping plates are respectively provided with flanges, and the flanges are clamped with the vertical blocking edges of the hook-shaped tool holder; through the clamping of the flanges of the clamping plates with the vertical blocking edges, the risk of the deviation of the pressing assembly due to external force during the cutting process is avoided, and the reliability and durability of the tool are improved.

[0011] As a further improvement of the above scheme, at least two cutting knives are installed in the tool groove of the hook-shaped tool holder; thus, the deviation of the cutting path caused by the uneven force of a single cutting knife can be reduced.

[0012] Through the above technical scheme, the present application at least has the following technical effects or advantages:

[0013] Since the sleeve is installed with the adjusting screw through the threaded cooperation, the rotation of the adjusting screw can drive the pressing assembly to move, so that when the tool is used, the steel pipe can be fixed and the hook-shaped tool holder is clamped at the part to be cut of the steel pipe, the steel pipe is pressed through the pressing assembly, and then the tool is rotated around the steel pipe, so that the vibration and deformation of the steel pipe can be avoided, and the quality after the steel pipe is cut and the overall performance of the steel pipe are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the technical personnel of the present application better understand the technical scheme in the present application, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical scheme in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present patent, other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of protection of the present patent.

[0015] Figure 1 The present application is a whole structure schematic view.

[0016] Figure 2 The present application is a structure schematic view of the hook-shaped tool holder.

[0017] Figure 3 The present application is a structure schematic view of the hook-shaped tool holder hidden behind.

[0018] Mark 1, hook-shaped tool holder, 2, vertical blocking edge, 3, cutting knife, 4, sleeve, 5, adjusting screw, 6, roller, 7, pressing rod, 8, rotating handle, 9, adjusting nut, 10, wheel seat, 11, clamping plate. Specific implementation

[0019] In order to make the technical personnel of the present application better understand the technical scheme in the present application, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical scheme in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present patent, other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of protection of the present patent.

[0020] The present application discloses a kind of thin-walled steel pipe manual cutting tool, as shown in Figure 1 It includes a hook-shaped tool holder 1 and adjusting screw 5 installed on hook-shaped tool holder 1, wherein the lower end of hook-shaped tool holder 1 is provided with cutting knife 3, the upper end of hook-shaped tool holder 1 is fixed with sleeve 4, sleeve 4 is provided with internal thread, adjusting screw 5 is installed in the sleeve 4. The lower end of adjusting screw 5 is rotatably installed with pressing assembly, and one side of the pressing assembly can slide up and down relative to hook-shaped tool holder 1.

[0021] Figure 2 It is the structure schematic view of hook-shaped tool holder 1, as shown in Figure 2 The sleeve 4 of hook-shaped tool holder 1 is located at one end away from cutting knife 3, and the sleeve 4 is used to install adjusting screw 5, when adjusting screw 5 rotates, pressing assembly can be driven by adjusting screw 5 to move towards the direction close to or away from cutting knife 3.

[0022] The lower end of the hook-shaped cutter holder 1 is hook-shaped and is provided with a cutter slot for mounting the cutter 3, which is rotatably mounted in the cutter slot. In use, the hook-shaped part of the hook-shaped cutter holder 1 is clamped around the outer periphery of the steel pipe, and the cutter 3 is in contact with the outer wall of the steel pipe. When the adjusting screw 5 is rotated, the pressing assembly can press the steel pipe towards the cutter 3. It should be understood that the cutter 3 can be made of high-alloy material. Two or more cutters 3 can be provided in the cutter slot, so that the cutters 3 can be in contact with the steel pipe to effectively cut the steel pipe.

[0023] The hook-shaped cutter holder 1 is also provided with a vertical stop 2, and the pressing assembly is slidably mounted relative to the vertical stop 2. When the pressing assembly moves up and down, the vertical stop 2 can guide the pressing assembly, so that the pressing assembly can cooperate with the cutter 3 to press the steel pipe.

[0024] As shown in Figure 3 , the pressing assembly includes a wheel holder 10 and a clamping plate 11. The upper end of the wheel holder 10 is provided with a mounting hole for connecting the lower end of the adjusting screw 5. After the adjusting screw 5 is connected to the wheel holder 10 through a bearing, the adjusting screw 5 can rotate relative to the wheel holder 10. The clamping plates 11 are mounted on both sides of the wheel holder 10 and can be fixed to the wheel holder 10 by bolt connection. The two clamping plates 11 are provided with flanges that are vertically slidably connected to the vertical stop 2 of the hook-shaped cutter holder 1. The lower end of the wheel holder 10 is provided with a wheel groove, and a roller 6 is mounted in the wheel groove. The roller 6 can be in contact with the outer wall of the steel pipe, so that the tool can rotate relative to the steel pipe.

[0025] As shown in Figure 1 , Figure 3 , the end of the adjusting screw 5 away from the pressing assembly is fixedly connected with a pressing rod 7, and the length of the pressing rod 7 is not less than the length of the adjusting screw 5. When the hook-shaped cutter holder 1 cooperates with the pressing assembly to press the steel pipe, rotating the pressing rod 7 can make the hook-shaped cutter holder 1 rotate around the steel pipe to cut the steel pipe. The length of the pressing rod 7 is relatively long, so that the labor can be saved.

[0026] In addition, the pressing rod 7 is also provided with a rotating handle 8. By operating the rotating handle 8, the adjusting screw 5 can be rotated, so that the operator can more easily press the pressing assembly towards the steel pipe.

[0027] On the other hand, the adjusting screw 5 is also provided with an adjusting nut 9, which is located below the sleeve 4. When the operator rotates the adjusting screw 5 to move the pressing assembly downward, the adjusting nut 9 can be rotated so that the upper end surface of the adjusting nut 9 abuts against the lower end surface of the sleeve 4. In this way, during the use of the tool to cut the steel pipe, the pressing assembly can be kept pressed against the steel pipe to avoid loosening of the pressing assembly.

[0028] The use process of the tool is as follows:

[0029] First, the steel pipe is fixed, and the lower end of the hook-shaped tool seat 1 is clamped on the outside of the steel pipe to ensure that the cutting knife 3 is in close contact with the outer wall of the steel pipe. Then, by rotating the rotating handle 8, the pressing assembly presses the steel pipe towards the cutting knife. Then, rotate the adjusting nut 9 so that the upper end surface is in close contact with the lower end surface of the sleeve on the hook-shaped tool seat 1 to keep the pressing assembly stably pressed on the steel pipe during cutting. Then, the operator holds the pressing rod and applies appropriate pressure to make the tool rotate around the steel pipe. During rotation, the cutting knife 3 will continuously cut the outer periphery of the steel pipe. When the cutting reaches a certain depth, the rotating handle 8 can be rotated again to further adjust the pressing force of the pressing assembly on the steel pipe, and the adjusting nut 9 is rotated at the same time to ensure stable pressing. Then, continue to operate the pressing rod to make the tool rotate around the steel pipe, and repeat the above cutting process until the steel pipe is completely cut off.

[0030] In the description of the utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the utility model and do not require the utility model to be constructed or operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In the utility model, "connected" and "connected" should be understood broadly, for example, it can be connected, and can also be detachably connected; it can be directly connected, and can also be indirectly connected through an intermediate part, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A thin-walled steel pipe hand cutting tool characterized by, The utility model relates to a hook-shaped cutter seat (1) which is provided with a vertical baffle (2), a cutter groove at the lower end of the hook-shaped cutter seat (1), a cutter (3) installed in the cutter groove, a sleeve (4) at the upper end of the hook-shaped cutter seat (1), the sleeve (4) being provided with internal threads and having an adjusting screw rod (5) installed inside, a pressing assembly rotatably installed at the lower end of the adjusting screw rod (5), the pressing assembly being vertically slidably connected to the vertical baffle (2) of the hook-shaped cutter seat (1) at one side, and a roller (6) installed at the lower end of the pressing assembly.

2. A thin-walled steel pipe hand cutting tool according to claim 1, wherein The end of the adjusting screw rod (5) away from the pressing assembly is fixedly connected with a pressing rod (7), and the length of the pressing rod (7) is not less than the length of the adjusting screw rod (5).

3. A thin-walled steel pipe hand cutting tool according to claim 2, wherein A rotating handle (8) is installed on the pressing rod (7).

4. A thin-walled steel pipe hand cutting tool according to any one of claims 1 to 3, characterized in that, An adjusting nut (9) is installed on the outside of the adjusting screw rod (5), and the adjusting nut (9) is located below the sleeve (4).

5. A thin-walled steel tube hand cutting tool according to claim 4, wherein The pressing assembly comprises a wheel seat (10) which is rotatably installed at the lower end of the adjusting screw rod (5), the wheel seat (10) being provided with a recess at the lower end, and the roller (6) being installed in the recess; the wheel seat (10) is fixedly provided with clamping plates (11) at both sides, the clamping plates (11) are provided with flanges, and the flanges are clamped with the vertical baffle (2) of the hook-shaped cutter seat (1).

6. A thin-walled steel tube hand cutting tool according to claim 5, wherein At least two cutters (3) are installed in the cutter groove of the hook-shaped cutter seat (1).

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