Rotary pipe cutting device

Abstract

The utility model discloses a rotary pipe cutting device which comprises a body, and the body comprises a cylindrical cutter installation part and an arch-shaped cantilever. Two groups of positioning rollers are arranged on the inner side of one end, away from the cutter mounting part, of the cantilever; a cutter assembly capable of sliding in the axial direction of the cutter mounting part is arranged in the cutter mounting part, the cutter assembly comprises a frame body and a threaded rod which is arranged in the frame body and can rotate freely, a blade is arranged at the end, close to the positioning roller, of the frame body, and a rotating handle is fixedly connected to the end, away from the blade, of the threaded rod; the cutter installation part is further provided with a cutter locking buckle of a lever structure, one end of the cutter locking buckle is provided with a clamping jaw meshed with the threaded rod, and the other end of the cutter locking buckle extends outwards to form a button. The pipe cutting device is simple in structure and easy and convenient to operate, the cutter can be preliminarily fed to make contact with a pipe by opening the cutter locking buckle through the button, secondary feeding is conducted by rotating the handle, and then the pipe can be cut by rotating the cutting device around the pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cutting, in particular to a rotary pipe cutting device. Background Art

[0002] Pipes are very common in people's daily lives. During pipe construction, pipes are usually cut according to the required length. For some special pipes, such as metal pipes, commonly used pipe scissors are difficult to meet the usage requirements. Therefore, it is necessary to design a pipe cutting device that is simple to assemble and easy to operate. Utility Model Content

[0003] The purpose of the utility model is to provide a rotary pipe cutting device which is simple to assemble and easy to operate, so as to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary pipe cutting device, comprising a main body, the main body comprising a cylindrical tool mounting portion and a bow-shaped cantilever; two sets of positioning rollers are provided on the inner side of one end of the cantilever away from the tool mounting portion; a tool assembly capable of sliding along its axial direction is provided in the tool mounting portion, the tool assembly comprising a frame body and a threaded rod arranged in the frame body and capable of rotating freely, a blade is provided at one end of the frame body close to the positioning roller, and a rotating handle is fixedly connected to one end of the threaded rod away from the blade; a tool locking buckle is also provided on the tool mounting portion, the relative middle part of the tool locking buckle is arranged on the tool mounting portion through a rotating shaft, one end of the tool locking buckle is provided with a claw engaged with the threaded rod, and the other end extends outward to form a button, and a reset torsion spring is provided on the rotating shaft of the tool locking buckle.

[0005] Preferably, the positioning roller is a bearing.

[0006] Preferably, the cantilever is integrally provided with a cylindrical bearing mounting seat, the outer ring of the bearing mounting seat matches the inner ring of the bearing, the inner ring of the bearing mounting seat is provided with an internal thread, and the bearing is sleeved behind the bearing mounting seat and fixed by bolts.

[0007] Preferably, the tool mounting portion and the cantilever are integrally formed.

[0008] Preferably, the blade is circular and can rotate freely.

[0009] Preferably, a return spring is provided between the tool mounting portion and the tool assembly.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the rotary pipe cutting device provided by the utility model has a simple structure and is easy to operate. The pipe is placed in the cantilever and is in contact with the positioning roller. The tool locking buckle is opened by pressing a button to initially feed the tool to contact the pipe, and then the handle is rotated for a second time. Then the cutting device is rotated around the pipe to cut the pipe.

[0011] As a preferred embodiment of the utility model, a bearing that rotates more smoothly is selected as the positioning roller, and an integrally formed bearing mounting seat is provided on the cantilever, which saves parts when assembling the bearing on the one hand, and makes the assembly more convenient on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a partial cross-sectional schematic diagram of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the main body in the utility model.

[0015] Figure 4 It is a schematic diagram of the cooperation of the tool assembly and the tool locking buckle in the utility model.

[0016] In the figure: 1. body; 2. tool mounting part; 3. cantilever; 4. positioning roller; 5. bearing mounting seat; 6. bolt; 7. tool assembly; 8. frame; 9. threaded rod; 10. blade; 11. rotating handle; 12. tool locking buckle; 13. claw; 14. button. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clearly understood, the utility model is further specifically described below through embodiments.

[0018] Embodiment: Rotary pipe cutting device, such as Figure 1-4 As shown, the main body 1 is composed of a square cylindrical tool mounting portion 2 and a bow-shaped cantilever 3, wherein two pairs of positioning rollers 4 are provided on the inner side of one end of the cantilever 3 away from the tool mounting portion 2. In this embodiment, the positioning roller 4 adopts a bearing that is smoother when rotating, and a cylindrical bearing mounting seat 5 is integrally provided at the corresponding position of the cantilever 3. The outer ring of the bearing mounting seat 5 is interference fit with the inner ring of the bearing, and the inner ring of the bearing mounting seat 5 is provided with an internal thread. After the bearing is sleeved on the bearing mounting seat 5, it is fixed by bolts 6 to form the positioning roller 4. This bearing installation method saves the bearing inner ring shaft in the traditional assembly method and is easier to assemble.

[0019] In the above structure, a tool assembly 7 capable of sliding in the axial direction is provided in the tool mounting portion 2. The tool assembly 7 includes a frame 8 and a threaded rod 9 disposed in the frame 8 and capable of rotating freely. Specifically, the cross-sectional shape of the frame 8 is square and matches the tool mounting portion, so that the frame 8 can slide in the axial direction, but its circumferential freedom is constrained. A blade 10 is provided at one end of the frame 8 close to the positioning roller 4. The blade 10 is circular and can rotate freely. The threaded rod 9 is inserted into the frame 8 and can rotate freely in the circumferential direction. The end away from the blade 10 extends to the outside and is fixedly connected to a rotating handle 11.

[0020] The outer surface of the tool mounting part 2 has a hollow area, in which a tool locking buckle 12 is provided. The relative middle part of the tool locking buckle 12 is arranged on the tool mounting part 2 through a rotating shaft to form a lever structure. One end of the tool locking buckle 12 is provided with a claw 13 engaged with the threaded rod 9, and the other end extends outward to form a button 14, and a reset torsion spring is provided on the rotating shaft of the tool locking buckle 12. Pressing the button 14 can make the claw 13 disengage from the threaded rod 9. When the button 14 is released, the claw 13 is engaged with the threaded rod 9 under the action of the reset torsion spring to position the tool assembly 7. At this time, the threaded rod 9 and the claw 13 form a screw nut structure, that is, at this time, rotating the rotary handle 11 can make the tool assembly 7 realize feeding or retraction through the relative rotation of the threaded rod 9 and the claw 13.

[0021] In addition, in this embodiment, a reset spring is also provided between the tool mounting portion 2 and the tool assembly 7 (not shown in the figure, the two ends of the reset spring can be fixed at different positions of the tool mounting portion and the frame respectively). After pressing the button 14, the tool assembly 7 pops outward under the action of the reset spring, and the tool assembly can be reset after the cutting is completed.

[0022] In the specific implementation of this embodiment, the pipe is first placed in the arched cantilever 3 and contacted with all the positioning rollers 4 to position the pipe, and the tool locking buckle 12 is opened by the button 14 to push the tool assembly 7 to initially feed to contact with the pipe, so that the blade 10 and the positioning roller 4 clamp the pipe, and after releasing the button, the claw 13 engages with the threaded rod 9 to position the tool, and then the handle 11 is rotated for secondary feeding, and then the cutting device is rotated around the pipe to cut the pipe. After the cutting is completed, the button 14 is pressed, and the tool assembly 7 is reset under the action of the reset spring.

[0023] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotary pipe cutting device, comprising a body, characterized in that: The body comprises a cylindrical tool mounting portion and an arcuate cantilever; Two sets of positioning rollers are arranged on the inner side of one end of the cantilever away from the tool mounting portion; The tool mounting portion is provided with a tool assembly capable of sliding along its axial direction, the tool assembly comprising a frame body and a threaded rod disposed in the frame body and capable of rotating freely, a blade is provided at one end of the frame body close to the positioning roller, and a rotating handle is fixedly connected to one end of the threaded rod away from the blade; The tool mounting portion is also provided with a tool locking buckle, and the relative middle part of the tool locking buckle is set on the tool mounting portion through a rotating shaft. One end of the tool locking buckle is provided with a claw engaged with the threaded rod, and the other end extends outward to form a button, and a reset torsion spring is provided on the rotating shaft of the tool locking buckle.

2. The rotary pipe cutting device according to claim 1, characterized in that: The positioning roller is a bearing.

3. The rotary pipe cutting device according to claim 2, characterized in that: The cantilever is integrally provided with a cylindrical bearing mounting seat, the outer ring of the bearing mounting seat matches the inner ring of the bearing, the inner ring of the bearing mounting seat is provided with an internal thread, and the bearing is sleeved behind the bearing mounting seat and fixed by bolts.

4. The rotary pipe cutting device according to claim 1, characterized in that: The tool mounting portion and the cantilever are integrally formed.

5. The rotary pipe cutting device according to claim 1, characterized in that: The blade is circular and can rotate freely.

6. The rotary pipe cutting device according to claim 1, characterized in that: A return spring is arranged between the tool mounting portion and the tool assembly.

Images