Portable electric pipe cutting machine

Abstract

The utility model relates to a portable electric pipe cutting machine, relate to pipe cutting machine technical field, it includes base, a set of roller is rotationally arranged on the base, the cutting assembly is commonly arranged above the roller, the cutting assembly is used for cutting pipe fitting, the support frame is set up on the base, the drive shaft is rotationally arranged on the support frame, transmission assembly is set up between the drive shaft and cutting assembly, transmission assembly is used for making drive shaft rotation drives cutting assembly to lift, handle and chuck are set up on the drive shaft, handle and drive shaft swing joint, chuck and drive shaft fixed connection is established, abutment component is set up between the drive shaft and handle, abutment component is used for making handle and chuck abut, the side fixed setting of handle towards chuck sets up the plug -in rod, chuck towards handle one side sets up a plurality of clamping slots, the clamping slot is inserted for plug -in rod. The present application has the effect that the handle angle is adjusted conveniently, and the operator is facilitated to the force effect of handle.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting machine technology, and in particular to a portable electric pipe cutting machine. Background Technology

[0002] Currently, in order to facilitate the adjustment of pipe length at the construction site, portable electric pipe cutters are usually brought to the construction site. After measurement, the pipes are cut in time to facilitate subsequent pipe installation.

[0003] A Chinese patent with authorization announcement number CN208879799U discloses a portable pipe cutting machine, which includes a base with two adjacent rollers on it to support the pipe. Driven gears are mounted at the ends of the rollers, and intermediate gears are rotatably mounted on the base. Both driven gears mesh with the intermediate gears. A support frame, shaped like an inverted L, is mounted on the base. A handle is located on the horizontal section of the L-shaped support frame, and a rotating gear is mounted at the end of the handle. The rotating gear meshes with a rack, and the lower end of the rack is connected to a cutting blade. The pipe is placed on the bearing surface between the two rollers. When the rollers rotate, they simultaneously cause the pipe on them to rotate. The handle controls the descent of the cutting blade to cut the pipe.

[0004] In the process of developing this application, the inventors discovered that the technology has at least the following problems: when the operator drives the handle to rotate, if the range of motion of the handle is within the operator's comfortable operating area, the operator can easily apply force to the handle. However, different operators have different comfortable operating areas, and there are situations where it is inconvenient for the operator to apply force to the handle. Utility Model Content

[0005] To facilitate adjustment of the handle angle and make it easier for operators to apply force to the handle, this application provides a portable electric pipe cutter.

[0006] The portable electric pipe cutter provided in this application adopts the following technical solution: A portable electric pipe cutter includes a base with a set of rollers rotatably mounted on it. A cutting assembly is mounted above the rollers for cutting pipes. A support frame is mounted on the base, and a drive shaft is rotatably mounted on the support frame. A transmission assembly is provided between the drive shaft and the cutting assembly, which is used to rotate the drive shaft and drive the cutting assembly to move up and down. A handle and a chuck are sleeved on the drive shaft. The handle is movably connected to the drive shaft, and the chuck is fixedly connected to the drive shaft. An abutment assembly is provided between the drive shaft and the handle, which is used to abut the handle against the chuck. An insertion rod is fixedly mounted on the side of the handle facing the chuck, and several slots are formed on the side of the chuck facing the handle for inserting the insertion rod.

[0007] By adopting the above technical solution, when adjusting the handle angle, the operator pulls the handle away from the chuck, thereby causing the handle to pull the insertion rod out of the slot. After the insertion rod is pulled out of the slot, the operator rotates the handle, causing the handle and drive shaft to rotate relative to each other. When the handle is rotated to a suitable angle, it is brought closer to the chuck, allowing the insertion rod to be inserted into the slot. After the insertion rod is inserted into the slot, the handle is abutted against the chuck by the abutment component, keeping the handle and drive shaft relatively stationary. This achieves the effect of facilitating the adjustment of the handle angle and making it convenient for the operator to apply force to the handle. When cutting the pipe, the pipe is placed on the bearing surface between the two rollers. When the rollers rotate, they will simultaneously drive the pipe on them to rotate. Then, the operator drives the drive shaft to rotate through the handle. The rotation of the drive shaft drives the cutting component to rise and fall through the transmission component, allowing the cutting component to cut the pipe.

[0008] Preferably, a handle is fixedly provided on the support frame.

[0009] By adopting the above technical solution, the handle makes it easy for operators to lift the pipe cutting machine.

[0010] Preferably, the abutment assembly includes an end cap and an abutment spring. The end cap is disposed on the end wall of the drive shaft, and the handle faces the end cap from the side away from the chuck. The abutment spring is sleeved on the drive shaft, with one end of the abutment spring abutting against the side of the handle facing the end cap, and the other end of the abutment spring abutting against the side of the end cap facing the handle.

[0011] By adopting the above technical solution, the abutment spring is abutted between the handle and the end cover, and the handle abuts against the chuck under the action of the abutment spring force.

[0012] Preferably, the handle has a relief groove on the side facing the end cover, the relief groove is for the end cover to be inserted, and the end of the abutment spring away from the end cover abuts against the inner wall of the relief groove.

[0013] By adopting the above technical solution, the sliding groove provides space for the abutment spring and end cap, making it easier for the abutment spring and end cap to be accommodated in the handle, thus reducing the size and weight of the pipe cutter.

[0014] Preferably, a mounting groove is formed on the end wall of the drive shaft, and a mounting hole is formed through the end cover. A mounting bolt is provided in both the mounting groove and the mounting hole, the mounting bolt passes through the mounting hole, and the mounting bolt is threadedly connected to the mounting groove.

[0015] By adopting the above technical solution, the end cover and the drive shaft are detachably connected by mounting bolts, which facilitates the disassembly and assembly of the end cover when the abutment spring is replaced.

[0016] Preferably, the transmission assembly includes a transmission rack and a transmission gear. The transmission rack is slidably mounted on the support base and connected to the cutting assembly. The transmission gear is sleeved on the drive shaft and fixedly connected to the drive shaft. The transmission gear and the transmission rack mesh with each other.

[0017] By adopting the above technical solution, when the cutting assembly is raised or lowered, the drive shaft rotates, the drive shaft rotates, the drive gear rotates, the drive gear rotates, the drive rack moves, and the drive rack moves, causing the cutting assembly to rise or fall along the height direction.

[0018] Preferably, the cutting assembly includes a cutting seat and a cutting blade, the cutting seat being fixedly connected to the bottom of the transmission rack, and the cutting blade being rotatably mounted on the cutting seat.

[0019] By adopting the above technical solution, when the roller rotates and drives the pipe on it to rotate, the transmission rack drives the cutting blade to descend and cut the pipe.

[0020] Preferably, a pressure seat is slidably disposed on the cutting seat, a set of pressure rollers is rotatably disposed on the pressure seat, the cutter is located between the pressure rollers, the axis of the cutter is parallel to the axis of the pressure rollers, a set of spring seats is fixedly disposed on the transmission rack, and a compression spring is disposed between the spring seats and the pressure seat.

[0021] By adopting the above technical solution, when the cutting blade cuts the pipe, the pressure roller abuts against the pipe under the action of the compression spring, thereby improving the stability of pipe cutting.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a base, rollers, cutting components, support frame, drive shaft, transmission components, handle, chuck, abutment components, insert rod, and slot, the handle angle can be easily adjusted, making it convenient for operators to apply force to the handle; 2. By setting up a transmission rack and gear, the drive shaft rotates, causing the cutting assembly to move up and down along the height direction; 3. By setting up a cutting seat and a cutting blade, the pipe cutting effect can be achieved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a portable electric pipe cutter according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram illustrating the positional relationship between the support frame and the handle in an embodiment of this application.

[0025] Figure 3 yes Figure 2 Enlarged view of section A.

[0026] Figure 4 This is a cross-sectional view illustrating the connection between the support frame and the handle in the embodiments of this application.

[0027] Figure 5 This is a cross-sectional view illustrating the positional relationship between the end cap and the handle in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Base; 11. Roller; 2. Cutting assembly; 21. Cutting seat; 22. Cutter; 3. Support frame; 31. Handle; 4. Handle; 41. Drive shaft; 5. Transmission assembly; 51. Transmission rack; 52. Transmission gear; 6. Chuck; 61. Slot; 62. Insert rod; 7. Abutment assembly; 71. End cap; 711. Mounting bolt; 712. Mounting hole; 713. Mounting groove; 72. Abutment spring; 721. Relief ring groove; 8. Pressure seat; 81. Pressure roller; 82. Compression spring; 83. Spring seat. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a portable electric pipe cutter. (Refer to...) Figures 1 to 4The system includes a base 1, on which a set of rollers 11 are rotatably mounted, arranged in parallel. A cutting assembly 2 is mounted above the rollers 11, used for cutting pipe fittings. A support frame 3 is mounted on the base 1, and a drive shaft 41 is rotatably mounted on the support frame 3, arranged parallel to the rollers 11. A transmission assembly 5 is installed between the drive shaft 41 and the cutting assembly 2, used to rotate the drive shaft 41 and drive the cutting assembly 2 to rise and fall. A handle 4 and a chuck 6 are fitted onto the drive shaft 41, the handle 4 being movably connected to the drive shaft 41, and the chuck 6 being welded to the drive shaft 41. An abutment assembly 7 is installed between the drive shaft 41 and the handle 4, used to abut the handle 4 against the chuck 6. A rod 62 is mounted on the side of the handle 4 facing the chuck 6, and several slots 61 are formed on the side of the chuck 6 facing the handle 4 for inserting the rod 62. When adjusting the angle of handle 4, the operator pulls handle 4 away from chuck 6, causing handle 4 to pull the insertion rod 62 out of slot 61. After the insertion rod 62 is pulled out of slot 61, the operator rotates handle 4, causing handle 4 to rotate relative to drive shaft 41. When handle 4 is rotated to the appropriate angle, it is brought closer to chuck 6, causing insertion rod 62 to be inserted into slot 61. After insertion rod 62 is inserted into slot 61, the abutment component 7 abuts handle 4 against chuck 6, keeping handle 4 and drive shaft 41 relatively stationary, thus facilitating the adjustment of handle 4's angle and allowing the operator to apply force to handle 4. When cutting pipes, the pipe is placed on the bearing surface between two rollers 11. When rollers 11 rotate, they simultaneously cause the pipe on them to rotate. Then, the operator drives drive shaft 41 to rotate via handle 4. The rotation of drive shaft 41 drives cutting component 2 to rise and fall through transmission component 5, allowing cutting component 2 to cut the pipe.

[0031] Reference Figure 1 A handle 31 is installed on the support frame 3, which makes it easy for the operator to lift the pipe cutting machine.

[0032] Reference Figures 1 to 5The abutment assembly 7 includes an end cap 71 and an abutment spring 72. A mounting groove 713 is formed on the end wall of the drive shaft 41, and a mounting hole 712 is formed through the end cap 71. A mounting bolt 711 is fitted into the mounting groove 713 and the mounting hole 712, which are positioned opposite each other. The mounting bolt 711 passes through the mounting hole 712 and is threadedly connected to the mounting groove 713. The end cap 71 and the drive shaft 41 are detachably connected via the mounting bolt 711. The side of the handle 4 away from the chuck 6 faces the end cap 71. A clearance ring groove 721 is formed on the side of the handle 4 facing the end cap 71, allowing the end cap 71 to be inserted. The abutment spring 72 is sleeved on the drive shaft 41, with one end of the abutment spring 72 abutting against the side of the end cap 71 facing the handle 4, and the other end abutting against the inner wall of the clearance ring groove 721. The clearance groove provides space for the abutment spring 72 and the end cap 71, allowing them to be accommodated within the handle 4, thus reducing the size and weight of the pipe cutter. The abutment spring 72 abuts between the handle 4 and the end cap 71, and the handle 4 abuts against the chuck 6 under the elastic force of the abutment spring 72.

[0033] Reference Figures 1 to 4 The transmission assembly 5 includes a transmission rack 51 and a transmission gear 52, with the transmission gear 52 meshing with the transmission rack 51. The transmission rack 51 is slidably mounted on a support base and is connected to the cutting assembly 2. The transmission gear 52 is sleeved on the drive shaft 41 and is fixedly connected to the drive shaft 41. When the cutting assembly 2 is driven to rise or fall, the drive shaft 41 rotates, which in turn drives the transmission gear 52 to rotate. The rotation of the transmission gear 52 then drives the transmission rack 51 to move, and the movement of the transmission rack 51 causes the cutting assembly 2 to rise or fall along the height direction.

[0034] Reference Figures 1 to 3 The cutting assembly 2 includes a cutting seat 21 and a cutter 22. The cutting seat 21 is mounted on the bottom of the transmission rack 51, and the cutter 22 is rotatably mounted on the cutting seat 21, with its axis parallel to the axis of the roller 11. When the roller 11 rotates, causing the pipe on it to rotate, the transmission rack 51 drives the cutter to descend and cut the pipe. A pressure seat 8 is slidably mounted on the cutting seat 21, and a set of pressure rollers 81 are rotatably mounted on the pressure seat 8. The cutter 22 is located between the pressure rollers 81, with its axis parallel to the axis of the pressure rollers 81. A set of spring seats 83 is mounted on the transmission rack 51, and a compression spring 82 is installed between the spring seats 83 and the pressure seat 8. When the cutter cuts the pipe, the pressure rollers 81 abut against the pipe under the action of the compression spring 82, improving the stability of the pipe cutting.

[0035] The implementation principle of a portable electric pipe cutter according to an embodiment of this application is as follows: When adjusting the angle of the handle 4, the operator pulls the handle 4 to compress the abutment spring 72, causing the handle 4 to move away from the chuck 6, thereby causing the handle 4 to pull the insertion rod 62 out of the slot 61. After the insertion rod 62 is pulled out of the slot 61, the operator rotates the handle 4, causing the handle 4 to rotate relative to the drive shaft 41. When the handle 4 is rotated to a suitable angle, it moves closer to the chuck 6, thereby inserting the insertion rod 62 into the slot 61. After the insertion rod 62 is inserted into the slot 61, the abutment spring 72 abuts the handle 4 against the chuck 6, keeping the handle 4 and the drive shaft 41 relatively stationary, thus facilitating the adjustment of the handle 4 angle and allowing the operator to apply force to the handle 4. When cutting the pipe, the pipe is placed on the bearing surface between the two rollers 11. When the rollers 11 rotate, they will simultaneously drive the pipe on them to rotate. Then, the operator drives the drive shaft 41 to rotate through the handle 4. The drive shaft 41 rotates, which drives the transmission gear 52 to rotate. The transmission gear 52 rotates, which drives the transmission rack 51 to move. The transmission rack 51 moves, which drives the cutting blade to rise and fall along the height direction, so that the cutting blade 22 cuts the pipe.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable electric pipe cutter, comprising a base, a set of rollers rotatably mounted on the base, a cutting assembly disposed above the rollers, the cutting assembly being used to cut pipes, a support frame disposed on the base, a drive shaft rotatably mounted on the support frame, and a transmission assembly disposed between the drive shaft and the cutting assembly, the transmission assembly being used to rotate the drive shaft to drive the cutting assembly to move up and down, characterized in that: A handle and a chuck are fitted onto the drive shaft. The handle is movably connected to the drive shaft, and the chuck is fixedly connected to the drive shaft. An abutment component is provided between the drive shaft and the handle. The abutment component is used to abut the handle against the chuck. A plug rod is fixedly provided on the side of the handle facing the chuck. Several slots are opened on the side of the chuck facing the handle for the plug rod to be inserted.

2. The portable electric pipe cutter according to claim 1, characterized in that: A handle is fixedly installed on the support frame.

3. A portable electric pipe cutter according to claim 1, characterized in that: The abutment assembly includes an end cap and an abutment spring. The end cap is disposed on the end wall of the drive shaft. The handle is positioned away from the chuck and faces the end cap. The abutment spring is sleeved on the drive shaft. One end of the abutment spring abuts against the handle on the side facing the end cap, and the other end of the abutment spring abuts against the end cap on the side facing the handle.

4. A portable electric pipe cutter according to claim 3, characterized in that: The handle has a relief groove on the side facing the end cap, the relief groove is for the end cap to be inserted, and the end of the abutment spring away from the end cap abuts against the inner wall of the relief groove.

5. A portable electric pipe cutter according to claim 3, characterized in that: A mounting groove is formed on the end wall of the drive shaft, and a mounting hole is formed through the end cover. A mounting bolt is provided in both the mounting groove and the mounting hole. The mounting bolt passes through the mounting hole and is threadedly connected to the mounting groove.

6. A portable electric pipe cutter according to claim 1, characterized in that: The transmission assembly includes a transmission rack and a transmission gear. The transmission rack is slidably mounted on the support base and is connected to the cutting assembly. The transmission gear is sleeved on the drive shaft and is fixedly connected to the drive shaft. The transmission gear and the transmission rack mesh with each other.

7. A portable electric pipe cutter according to claim 6, characterized in that: The cutting assembly includes a cutting seat and a cutting blade. The cutting seat is fixedly connected to the bottom of the transmission rack, and the cutting blade is rotatably mounted on the cutting seat.

8. A portable electric pipe cutter according to claim 7, characterized in that: A pressure seat is slidably mounted on the cutting seat, and a set of pressure rollers is rotatably mounted on the pressure seat. The cutter is located between the pressure rollers, and the axis of the cutter is parallel to the axis of the pressure rollers. A set of spring seats is fixedly mounted on the transmission rack, and a compression spring is provided between the spring seats and the pressure seat.

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