Natural gas pipeline cutting machine

Abstract

The utility model discloses natural gas pipeline cutting machine relates to pipeline cutting technical field. The utility model discloses a cutting machine body, one side of cutting machine body is provided with annular rotating base, and one side symmetry fixed mounting of annular rotating base has two fixed base, and the inside of fixed base provides screw rod movable mounting and has adjusted base, and one side of adjusted base is provided with rectangular slot, and the inside movable insertion of rectangular slot has cutting knife, and both sides of cutting knife all are provided with the clamping groove, and the inside of rectangular slot is provided with the clamping assembly for quick installation and disassembly cutting knife, and the clamping groove is used in cooperation with clamping assembly, and one side symmetry fixed mounting of annular rotating base has two connecting bases, and through setting up clamping assembly, through one end of the L -shaped clamping rod in the component and insert into the clamping groove, and press the press bar can remove the locking to cutting knife, and simple operation can quick locking or unlocking cutting knife, and improve the replacement efficiency of cutting knife.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cutting technology, specifically to a natural gas pipeline cutting machine. Background Technology

[0002] Natural gas, as a clean energy source, plays an important role in energy supply. Its pipeline network is constantly expanding. During the laying, maintenance and renovation of natural gas pipelines, cutting operations are a key link, which places high demands on the performance of cutting equipment.

[0003] Traditional natural gas pipeline cutting machines present inconveniences in terms of cutting blade installation and disassembly. The cutting blades are usually fixed with bolts, which need to be tightened one by one during installation and loosened one by one during disassembly. This process is cumbersome and time-consuming. This not only reduces the efficiency of equipment maintenance and replacement, but also delays the overall operation progress in time-sensitive scenarios such as emergency repairs. In addition, the threads of bolt-connected cutting blades are prone to wear after repeated disassembly and assembly, which may affect the fixing stability of the cutting blade and thus affect the cutting accuracy, making it difficult to meet the needs of efficient and convenient cutting operations. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a natural gas pipeline cutting machine, which features quick installation and removal of the cutting blade and excellent cut finishing effect, thus solving the problems of cumbersome blade replacement and poor cut quality in traditional cutting machines.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: a natural gas pipeline cutting machine, including a cutting machine body. A ring-shaped rotating base is provided on one side of the cutting machine body. Two fixed bases are symmetrically fixed on one side of the ring-shaped rotating base. An adjusting base is movably mounted inside the fixed base using a lead screw. A rectangular slot is provided on one side of the adjusting base. A cutting blade is movably inserted into the rectangular slot. Snap-fit ​​grooves are provided on both sides of the cutting blade. A snap-fit ​​component for quickly installing and removing the cutting blade is provided inside the rectangular slot. The snap-fit ​​grooves cooperate with the snap-fit ​​component. Two connecting bases are symmetrically fixed on one side of the ring-shaped rotating base. A grinding component for trimming the cut after cutting is provided on the top of the connecting base.

[0006] As a preferred embodiment of this utility model, the snap-fit ​​assembly includes a rectangular movable hole, which is located on one side of the adjusting base. Two first mounting slots are symmetrically arranged on one side of the rectangular movable hole. A rectangular hole is provided on the side of the first mounting slot near the rectangular slot, and the rectangular hole communicates with the rectangular slot. The rectangular hole corresponds to the snap-fit ​​slot. An L-shaped snap-fit ​​rod is rotatably mounted inside the first mounting slot via a round rod. One end of the L-shaped snap-fit ​​rod passes through the rectangular hole. Two pressing rods are symmetrically and movably mounted inside the rectangular movable hole. A first spring is fixedly installed between the two pressing rods. A rectangular groove is provided on the side of the pressing rod near the L-shaped snap-fit ​​rod, and the other end of the L-shaped snap-fit ​​rod is movably fitted inside the rectangular groove.

[0007] As a preferred embodiment of this utility model, the grinding assembly includes a T-shaped base, which is fixedly installed inside a connecting base by bolts. A rectangular adjustment hole is provided on one side of the T-shaped base, and an adjustment rod is movably inserted into the rectangular adjustment hole. An adjustment groove is provided at the top of the adjustment rod, and a limit groove is provided at the other end of the adjustment rod. A connecting rod is movably installed inside the limit groove. A second spring is fixedly installed on one side of the limit groove, and the other end of the second spring is fixedly installed to one end of the connecting rod. An L-shaped mounting rod is fixedly installed at the top of the connecting rod, and a grinding roller is rotatably mounted on the side of the L-shaped mounting rod near the cutting machine body via a round rod.

[0008] As a preferred technical solution of this utility model, the grinding assembly further includes a rectangular guide hole, which is connected to a rectangular adjustment hole. The rectangular guide hole has grooves on both sides inside. A pin is movably installed inside the rectangular guide hole. The pin works in conjunction with the adjustment groove. Slider blocks are fixedly installed on both sides of the pin. The sliders are movably sleeved inside the grooves. A third spring is fixedly installed on the top of the slider. The other end of the third spring is fixedly installed to the top surface inside the groove.

[0009] As a preferred technical solution of this utility model, a limiting groove is formed on one side of the inner side of the rectangular movable hole, and a limiting block is fixedly installed on the side of the pressing rod near the limiting groove. The limiting block is movably sleeved inside the limiting groove.

[0010] As a preferred technical solution of this utility model, the outer side of the grinding roller is arc-shaped, and the arc-shaped surface of the outer side of the grinding roller matches the cut contour formed by the cutting blade after the natural gas pipeline is cut. The L-shaped snap-fit ​​rod is inclined at one end near the snap-fit ​​groove and semi-circular at the other end near the rectangular groove.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention enables quick installation and removal of the cutting blade by setting a snap-fit ​​component in the rectangular slot of the adjusting base. When the pressing rod is reset under the action of the first spring, one end of the L-shaped snap-fit ​​rod is snapped into the snap-fit ​​grooves on both sides of the cutting blade to form a stable connection. When the cutting blade needs to be replaced, pressing the pressing rod will disengage the L-shaped snap-fit ​​rod from the snap-fit ​​groove, and the cutting blade can be quickly removed, avoiding the cumbersome operation of the traditional bolt connection method. At the same time, the fitting precision between the rectangular slot and the snap-fit ​​component ensures the accurate positioning of the cutting blade.

[0013] The arc-shaped design on the outer side of the grinding roller precisely matches the contour of the pipe cut, allowing for all-around grinding along the cut surface to ensure a smooth cut. The second spring pushes the connecting rod to slide within the limiting groove, ensuring that the grinding roller always maintains a tight fit with the cut. Meanwhile, the adjusting rod can slide within the rectangular adjusting hole and lock its position through the cooperation of the pin and the adjusting groove, adapting to pipes of different diameters and achieving flexible adjustment of the grinding range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the natural gas pipeline cutting machine of this utility model;

[0015] Figure 2 This is a schematic diagram of the adjustable base structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustable base of this utility model;

[0017] Figure 4 This is an enlarged structural schematic diagram of utility model A;

[0018] Figure 5 This is a schematic diagram of the adjusting rod structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the adjusting rod of this utility model;

[0020] Figure 7 This is an enlarged structural schematic diagram of utility model B.

[0021] Reference numerals in the attached drawings: 1. Cutting machine body; 2. Annular rotating base; 3. Fixed base; 4. Adjustable base; 401. Rectangular movable hole; 402. First mounting groove; 403. Rectangular hole; 404. L-shaped snap-fit ​​rod; 405. Pressing rod; 406. Rectangular groove; 407. First spring; 5. Rectangular slot; 6. Cutting blade; 7. Snap-fit ​​groove; 8. Connecting base; 9. T-shaped base; 10. Rectangular adjusting hole; 11. Adjusting rod; 12. Adjusting groove; 13. Limiting groove; 14. Second spring; 15. Connecting rod; 16. L-shaped mounting rod; 17. Grinding roller; 18. Rectangular guide hole; 19. Pin; 20. Slide groove; 21. Slider; 22. Third spring. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0023] Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 7 The present invention will be further described below.

[0024] A natural gas pipeline cutting machine includes a cutting machine body 1. A ring-shaped rotating base 2 is provided on one side of the cutting machine body 1. Two fixed bases 3 are symmetrically fixed on one side of the ring-shaped rotating base 2. An adjusting base 4 is movably installed inside the fixed base 3 with a lead screw. A rectangular slot 5 is opened on one side of the adjusting base 4. A cutting blade 6 is movably inserted into the rectangular slot 5. Both sides of the cutting blade 6 are provided with snap-fit ​​grooves 7. A snap-fit ​​component for quick installation and removal of the cutting blade 6 is provided inside the rectangular slot 5. The snap-fit ​​grooves 7 are used in conjunction with the snap-fit ​​component. Two connecting bases 8 are symmetrically fixed on one side of the ring-shaped rotating base 2. A grinding component for trimming the cut after cutting is provided on the top of the connecting base 8.

[0025] In this implementation scheme, the cutting machine body 1 serves as the core carrier of the entire machine. It houses a built-in drive motor and is connected to an external power source to provide power for the equipment's operation, driving the rotation of the annular rotating base 2. Simultaneously, it supports other components working in tandem. Driven by the motor of the cutting machine body 1, the annular rotating base 2 provides a circular motion foundation for components such as the fixed base 3, adjusting base 4, and cutting blade 6, achieving an annular cutting path around the natural gas pipeline. The fixed base 3 is symmetrically installed on one side of the annular rotating base 2, providing stable support and installation position for the adjusting base 4. With the help of a lead screw, the adjusting base 4 can be adjusted in position to cut natural gas pipelines of different diameters. The adjusting base 4 moves within the fixed base 3 via the lead screw, allowing precise adjustment of the cutting blade 6 to adapt to different diameter natural gas pipelines. For pipeline cutting, a rectangular slot 5 is located on one side of the adjusting base 4, providing precise insertion and positioning space for the cutting blade 6. This ensures the accurate installation direction and position of the cutting blade 6. The cutting blade 6 is inserted into the rectangular slot 5, and under the drive of the annular rotating base 2, it performs cutting operations on the natural gas pipeline. The locking grooves 7 are located on both sides of the cutting blade 6 and cooperate with the locking components in the rectangular slot 5 to achieve quick loading and unloading of the cutting blade 6, facilitating tool replacement and maintenance. The locking components are inserted into the locking grooves 7 through one end of the L-shaped locking rod 404 in the components. Pressing the pressing rod 405 can release the locking of the cutting blade 6. Simple operation allows for quick locking or unlocking of the cutting blade 6, improving the replacement efficiency of the cutting blade 6. After the pipeline cutting is completed, the grinding component trims and grinds the cut, making the cut smooth and flat to meet subsequent use requirements.

[0026] Specifically, the snap-fit ​​assembly includes a rectangular movable hole 401, which is located on one side of the adjusting base 4. Two first mounting slots 402 are symmetrically arranged on one side of the rectangular movable hole 401. A rectangular hole 403 is provided on the side of the first mounting slot 402 near the rectangular slot 5, and the rectangular hole 403 is connected to the rectangular slot 5. The rectangular hole 403 corresponds to the snap-fit ​​groove 7. An L-shaped snap-fit ​​rod 404 is rotatably mounted inside the first mounting slot 402 via a round rod. One end of the L-shaped snap-fit ​​rod 404 passes through the rectangular hole 403. Two pressing rods 405 are symmetrically and movably mounted inside the rectangular movable hole 401. A first spring 407 is fixedly installed between the two pressing rods 405. A rectangular groove 406 is provided on the side of the pressing rod 405 near the L-shaped snap-fit ​​rod 404, and the other end of the L-shaped snap-fit ​​rod 404 is movably fitted inside the rectangular groove 406.

[0027] In this embodiment, a rectangular movable hole 401 is provided to provide installation space and movement path for the pressing rod 405, allowing the pressing rod 405 to move axially. The first mounting groove 402 fixes the round rod and supports the L-shaped locking rod 404, providing a rotation fulcrum for the L-shaped locking rod 404 to ensure its stable rotation around the round rod, thus realizing the locking or unlocking action. The rectangular hole 403 connects the rectangular slot 5 and the first mounting groove 402, allowing one end of the L-shaped locking rod 404 to pass through the rectangular hole 403 and extend into the locking groove 7, achieving mechanical locking with the cutting blade 6. One end of the L-shaped locking rod 404 is inserted into the locking groove 7 of the cutting blade 6, restricting the axial movement of the cutting blade 6. The first end of the L-shaped locking rod 404 moves to achieve quick locking, and the second end engages with the rectangular groove 406 of the pressing rod 405. The movement of the pressing rod 405 drives it to rotate around the circular rod, thereby unlocking. The pressing rod 405 can be manually pressed or released to drive the L-shaped locking rod 404 to rotate. The first spring 407 provides a reset force. When the external force is removed, it pushes the pressing rod 405 to reset, keeping the L-shaped locking rod 404 in a locked state. The rectangular groove 406 provides a space for movement at the other end of the L-shaped locking rod 404. Through the contact between the groove wall and the end of the locking rod, the linear motion of the pressing rod 405 is converted into the rotational motion of the L-shaped locking rod 404, realizing the transmission of force and the conversion of action.

[0028] Specifically, the grinding assembly includes a T-shaped base 9, which is fixedly installed inside the connecting base 8 by bolts. A rectangular adjustment hole 10 is provided on one side of the T-shaped base 9. An adjustment rod 11 is movably inserted into the rectangular adjustment hole 10. An adjustment groove 12 is provided on the top of the adjustment rod 11. A limit groove 13 is provided on the other end of the adjustment rod 11. A connecting rod 15 is movably installed inside the limit groove 13. A second spring 14 is fixedly installed on one side of the limit groove 13. The other end of the second spring 14 is fixedly installed to one end of the connecting rod 15. An L-shaped mounting rod 16 is fixedly installed on the top of the connecting rod 15. A grinding roller 17 is rotatably installed on the side of the L-shaped mounting rod 16 near the cutting machine body 1 via a round rod.

[0029] In this embodiment, a T-shaped base 9 is provided and bolted to the inside of the connecting base 8, providing a stable mounting foundation for the grinding assembly. This ensures the overall stability of the assembly during grinding and prevents shaking from affecting the grinding effect. A rectangular adjustment hole 10 is provided on one side of the T-shaped base 9, providing space for the adjustment rod 11 to move within it. This allows for adjustment of the position of the grinding roller 17 to adapt to the grinding requirements of natural gas pipeline cuts of different diameters. The adjustment rod 11 moves within the rectangular adjustment hole 10, and its extension length can be adjusted according to actual needs, thereby driving the L-shaped mounting rod 16 and the grinding roller 17 to move, precisely adjusting the relative position of the grinding roller 17 and the pipeline cut. The adjustment groove 12 cooperates with the pin 19 to lock the position of the adjustment rod 11 within the rectangular adjustment hole 10, ensuring that the adjustment rod 11 will not move arbitrarily during grinding and guaranteeing grinding accuracy. A limiting groove 13 is provided at the other end of the adjustment rod 11, providing a moving track for the connecting rod 15 and limiting its movement. Within the range of motion, the second spring 14 provides elastic support. During the grinding process, it can push the connecting rod 15 to keep the grinding roller 17 in close contact with the natural gas pipeline cut, ensuring continuous contact between the grinding roller 17 and the cut and guaranteeing the grinding effect. The connecting rod 15 moves within the limiting groove 13. Through the elastic force of the second spring 14, it drives the L-shaped mounting rod 16 and the grinding roller 17 to move, converting the elastic force of the spring into pressure that makes the grinding roller 17 fit against the cut. The L-shaped mounting rod 16 is the base of the grinding roller 17. The installation position is provided, and the movement of the connecting rod 15 is transmitted to the grinding roller 17, which drives the grinding roller 17 to perform position adjustment and grinding work. The grinding roller 17 is installed on the side of the L-shaped mounting rod 16 near the cutting machine body 1, and directly grinds and trims the cut after the natural gas pipeline is cut. Its outer arc design is adapted to the contour of the pipeline cut, which can efficiently and evenly grind the cut, making it flat and smooth to meet the usage requirements. The other end of the round rod is equipped with an anti-detachment plate to prevent the grinding roller 17 from falling off.

[0030] Specifically, the grinding assembly also includes a rectangular guide hole 18, which is connected to a rectangular adjustment hole 10. Slide grooves 20 are provided on both sides of the interior of the rectangular guide hole 18. A pin 19 is movably installed inside the rectangular guide hole 18. The pin 19 is used in conjunction with the adjustment groove 12. Slide blocks 21 are fixedly installed on both sides of the pin 19. The slide blocks 21 are movably sleeved inside the slide grooves 20. A third spring 22 is fixedly installed on the top of the slide blocks 21. The other end of the third spring 22 is fixedly installed on the top surface inside the slide grooves 20.

[0031] In this embodiment, a rectangular guide hole 18 is provided, which communicates with the rectangular adjustment hole 10, to provide a guide channel for the pin 19, ensuring that the pin 19 moves in a fixed direction and precisely engages with the adjustment groove 12 to lock or unlock the adjustment rod 11. A sliding groove 20 is symmetrically opened on both sides inside the rectangular guide hole 18, providing a sliding track for the slider 21, limiting the movement direction of the pin 19, ensuring smooth movement of the pin 19, and enhancing its structural stability. The pin 19 is movably installed in the rectangular guide hole 18, and by inserting into or disengaging from the adjustment groove 12 at the top of the adjustment rod 11, the position of the adjustment rod 11 is locked or unlocked. The slider 21 is fixedly installed on both sides of the pin 19, sliding within the sliding groove 20 to assist the pin 19 in smooth movement and prevent the pin 19 from shifting or jamming during movement. One end of the third spring 22... The third spring 22 is fixed to the top of the slider 21, and the other end is connected to the inner top surface of the slide groove 20 to provide a reset spring force for the pin 19. When the external force is removed, the third spring 22 pushes the slider 21 and the pin 19 to reset, so that the pin 19 automatically inserts into the adjustment groove 12 to achieve quick locking of the adjustment rod 11. A horizontal pull rod is installed on the top of the pin 19. The operator can manually pull the horizontal pull rod to drive the pin 19 to move upward along the rectangular guide hole 18. At the same time, the slider 21 squeezes the third spring 22 in the slide groove 20. The third spring 22 compresses and stores elastic potential energy. After the pin 19 is completely removed from the adjustment groove 12, the position of the adjustment rod 11 can be adjusted. After adjusting to the appropriate position, the horizontal pull rod is released, the third spring 22 releases elastic potential energy, and the pin 19 is reinserted into the adjustment groove 12 to achieve the fixation of the adjustment rod 11.

[0032] Specifically, a limiting groove is provided on one side of the rectangular movable hole 401, and a limiting block is fixedly installed on the side of the pressing rod 405 near the limiting groove. The limiting block is movably sleeved inside the limiting groove.

[0033] In this embodiment, by setting a limiting groove, a moving track is provided for the limiting block, which precisely limits the movement range of the pressing rod 405, preventing the pressing rod 405 from shifting or dislodging during pressing or resetting, ensuring the stability and reliability of the snap-fit ​​assembly. By constraining the stroke of the pressing rod 405, the consistency of the rotation angle of the L-shaped snap-fit ​​rod 404 is indirectly ensured, making the locking and unlocking actions of the cutting blade 6 accurate and controllable. The limiting block is embedded in the limiting groove and moves, forming a mechanical limiting structure with the limiting groove. When the pressing rod 405 is moved under force, the limiting block slides along the limiting groove, playing a guiding role and preventing the pressing rod 405 from shaking.

[0034] Specifically, the outer side of the grinding roller 17 is arc-shaped, and the arc-shaped surface of the outer side of the grinding roller matches the cut contour formed by the cutting blade 6 after the natural gas pipeline is cut. The L-shaped clamping rod 404 is inclined at one end near the clamping groove 7 and semi-circular at the other end near the rectangular groove 406.

[0035] In this implementation scheme, by setting the outer arc shape of the grinding roller 17 to fit the contour of the pipe cut, it is ensured that the surface of the grinding roller 17 is in full circumferential contact with the cut during the grinding process, achieving uniform grinding and avoiding local over-grinding or ungrinded areas, thus improving the flatness and smoothness of the cut. The beveled design of the L-shaped locking rod 404 near the locking groove 7 facilitates quick sliding into and out of the locking groove 7 during installation. The semi-circular setting of the L-shaped locking rod 404 near the rectangular groove 406 can effectively reduce friction with the inner wall of the rectangular groove 406. During the action of the pressing rod 405, the semi-circular end can slide more smoothly in the rectangular groove 406, ensuring that the L-shaped locking rod 404 can rotate flexibly around the round rod, realizing quick unlocking and locking of the cutting blade 6.

[0036] In summary: When using this utility model, the cutting machine body 1 is first fixed to the outside of the pipe by the cylinder on the cutting machine body 1. Then, the two pressing rods 405 on the adjusting base 4 are manually pressed simultaneously. At this time, the two pressing rods 405 overcome the elastic force of the first spring 407 and move inwards relative to each other. The first spring 407 is compressed, storing elastic potential energy. The rectangular groove 406 of the pressing rod 405 pushes the L-shaped locking rod 404 close to the semi-circular end of the rectangular groove 406, causing the L-shaped locking rod 404 to rotate counterclockwise around the round rod in the first mounting groove 402. Its other end gradually retracts from the rectangular hole 403 into the rectangular movable hole 401. The cutting blade 6 is then inserted along the rectangular slot 5 until the locking grooves 7 on both sides of the cutting blade 6 are completely aligned with the rectangular hole 403. At this point, the pressing rod 405 is released, the first spring 407 releases its elastic force, pushing the pressing rod 405 back to its original position. The pressing rod 405 drives the L-shaped locking rod 404 to rotate clockwise through the rectangular groove 406. The inclined end of the L-shaped locking rod 404 passes through the rectangular hole 403 and is locked into the locking groove 7, achieving a firm lock on the cutting blade 6. The limiting block on the pressing rod 405 slides in the limiting groove of the rectangular movable hole 401 to ensure stability during the pressing process and prevent the pressing rod 405 from shifting. The cutting machine body 1 has a built-in drive motor and an external power supply to provide power to the whole machine. When the drive motor is started, it drives the annular rotating base 2 to rotate around the central axis. The fixed base 3, the adjusting base 4, and the cutting blade 6 then perform circular motion. The adjusting base 4 is controlled by a lead screw. The height of the fixed base 3 is pre-adjusted so that the cutting blade 6 is aligned with the cutting position of the natural gas pipeline. As the annular rotating base 2 rotates, the cutting blade 6 completes the annular cut of the pipeline. To replace the blade, manually press the two pressing rods 405. The first spring 407 is compressed, and the pressing rods 405 push the L-shaped locking rod 404 counterclockwise through the rectangular groove 406, causing one end of it to disengage from the locking groove 7 of the cutting blade 6. At this time, the old cutting blade 6 can be directly pulled out from the rectangular slot 5, and the new cutting blade 6 can be inserted. Repeat the above installation steps to complete the blade replacement. After cutting, the cut may have burrs or unevenness, affecting subsequent use. At this time, first manually adjust the position of the adjusting base 4 using the screw to move the cutting blade 6 away from the cut, and then... Manually pull the pin 19 upwards. The sliders 21 on both sides of the pin 19 slide upwards within the grooves 20 of the rectangular guide hole 18, compressing the third spring 22. The pin 19 disengages from the adjusting groove 12 at the top of the adjusting rod 11, releasing the lock on the adjusting rod 11. Adjust the length of the adjusting rod 11 according to the pipe diameter, so that the grinding roller 17 on the L-shaped mounting rod 16 fits against the cut. After adjustment, release the pin 19. The third spring 22 pushes the sliders 21 and the pin 19 downwards to reset. The pin 19 re-inserts into the adjusting groove 12, locking the position of the adjusting rod 11. Start the drive motor of the cutting machine body 1. The annular rotating base 2 drives the grinding assembly to rotate around the pipe. The grinding roller 17 grinds the cut from all directions, smoothing the cut surface to a flat and smooth finish.During the grinding process, the second spring 14 pushes the connecting rod 15 outward, ensuring that the grinding roller 17 remains in contact with the cut. Once the cut is ground, the motor on the cutting machine body 1 is turned off, completing the pipe cutting.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A natural gas pipeline cutter characterized by, The machine includes a cutting machine body (1), a ring-shaped rotating base (2) is provided on one side of the cutting machine body (1), two fixed bases (3) are symmetrically fixed on one side of the ring-shaped rotating base (2), an adjusting base (4) is provided inside the fixed base (3) with a lead screw for movable installation, a rectangular slot (5) is provided on one side of the adjusting base (4), a cutting blade (6) is movably inserted into the rectangular slot (5), a snap-fit ​​groove (7) is provided on both sides of the cutting blade (6), a snap-fit ​​component for quick installation and removal of the cutting blade (6) is provided inside the rectangular slot (5), the snap-fit ​​groove (7) is used in conjunction with the snap-fit ​​component, two connecting bases (8) are symmetrically fixed on one side of the ring-shaped rotating base (2), and a grinding component for trimming the cut after cutting is provided on the top of the connecting base (8).

2. The natural gas pipeline cutter of claim 1, wherein, The snap-fit ​​assembly includes a rectangular movable hole (401) located on one side of the adjusting base (4). Two first mounting slots (402) are symmetrically formed on one side of the rectangular movable hole (401). A rectangular hole (403) is formed on the side of the first mounting slot (402) closest to the rectangular slot (5). The rectangular hole (403) communicates with the rectangular slot (5) and corresponds to the snap-fit ​​groove (7). The interior of the first mounting slot (402) is open to… An L-shaped locking rod (404) is rotatably mounted on a round rod. One end of the L-shaped locking rod (404) passes through a rectangular hole (403). Two pressing rods (405) are symmetrically and movably mounted inside the rectangular movable hole (401). A first spring (407) is fixedly installed between the two pressing rods (405). A rectangular groove (406) is opened on the side of the pressing rod (405) near the L-shaped locking rod (404). The other end of the L-shaped locking rod (404) is movably sleeved inside the rectangular groove (406).

3. The natural gas pipeline cutter of claim 2, wherein, The grinding assembly includes a T-shaped base (9), which is fixedly installed inside the connecting base (8) by bolts. A rectangular adjustment hole (10) is provided on one side of the T-shaped base (9). An adjustment rod (11) is movably inserted into the rectangular adjustment hole (10). An adjustment groove (12) is provided on the top of the adjustment rod (11). A limit groove (13) is provided at the other end of the adjustment rod (11). A connecting rod (15) is movably installed inside the limit groove (13). A second spring (14) is fixedly installed on one side of the limit groove (13). The other end of the second spring (14) is fixedly installed with one end of the connecting rod (15). An L-shaped mounting rod (16) is fixedly installed on the top of the connecting rod (15). A grinding roller (17) is rotatably installed on the side of the L-shaped mounting rod (16) near the cutting machine body (1) via a round rod.

4. The natural gas pipeline cutter of claim 3, wherein, The grinding assembly also includes a rectangular guide hole (18), which is connected to a rectangular adjustment hole (10). The rectangular guide hole (18) has a sliding groove (20) on both sides inside. A pin (19) is movably installed inside the rectangular guide hole (18). The pin (19) is used in conjunction with the adjustment groove (12). A slider (21) is fixedly installed on both sides of the pin (19). The slider (21) is movably sleeved inside the sliding groove (20). A third spring (22) is fixedly installed on the top of the slider (21). The other end of the third spring (22) is fixedly installed on the top surface inside the sliding groove (20).

5. The natural gas pipeline cutter of claim 2, wherein, A limiting groove is provided on one side of the rectangular movable hole (401), and a limiting block is fixedly installed on the side of the pressing rod (405) near the limiting groove. The limiting block is movably sleeved inside the limiting groove.

6. The natural gas pipeline cutter of claim 3, wherein, The outer side of the grinding roller (17) is arc-shaped, and the arc-shaped surface of the outer side of the grinding roller (17) matches the cut contour formed by the cutting blade (6) after the natural gas pipeline is cut. The L-shaped snap rod (404) is inclined at one end near the snap groove (7) and semi-circular at the other end near the rectangular groove (406).

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