Cutting apparatus for gas engineering pipe installation

Abstract

The application discloses a cutting equipment for gas engineering pipeline installation and relates to the field of pipeline cutting, which comprises a first equipment ring, a second equipment ring arranged on one side of the first equipment ring, a positioning structure arranged at the top end of the first equipment ring and a rotating ring arranged at the front end of the first equipment ring. The first equipment ring and the second equipment ring are clamped and fixed on the outer side of the gas pipe through the mounting block, the first support frame and the second support frame. Four screw rods are screwed respectively so as to be attached to the outer wall of the gas pipe to realize clamping. Since the first equipment ring and the second equipment ring are small in size and convenient to install, they can be clamped at any position of the gas pipe. After the first support frame and the second support frame are fixed, the inserting rod is inserted into the horizontal inserting slot or the vertical inserting slot and then inserted into the ground, so that the installation of the first equipment ring, the second equipment ring and the gas pipe can be reinforced.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting, specifically to a cutting device for gas pipeline installation. Background Technology

[0002] Gas pipelines, as pipeline systems for transporting combustible gases, are mainly made of steel pipes and polyethylene pipes. They are laid in two ways: underground and overhead. During installation, due to the complexity of the construction site, it is often necessary to cut the pipeline during the installation process to adapt to the actual installation trajectory and to connect pipelines of different diameters. This is to ensure the sealing performance of the pipeline after installation and to ensure the safe and stable operation of the gas transmission system. Currently, the main method for cutting gas pipes is laser cutting, which has the advantages of high precision, high efficiency and non-contact operation.

[0003] Existing patent document CN119566563B discloses a cutting device for gas pipeline installation. The separation of clamping mechanism one and clamping mechanism two allows the pipeline to be placed on top of a bottom positioning mechanism. Then, clamping mechanism one and clamping mechanism two are merged, and a dual-axis motor two drives the docked semi-gear rings one and two. These semi-gear rings one and two push the driven wheel to rotate, which in turn drives a locking block to position and clamp the steel pipe. This facilitates quick and easy pipe positioning, ensuring cutting stability and improving cutting quality. However, while patent CN119566563B includes clamping mechanisms one and two that engage with the outer wall of the gas pipe from both sides, the device is large and its installation is limited. It cannot be flexibly installed on the gas pipe during installation. Therefore, a cutting device for gas pipeline installation is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to address the problems of existing cutting equipment being unable to be flexibly installed at any position on the gas pipe during installation, the laser cutting head of the cutting equipment requiring manual adjustment according to the diameter of the gas pipe, which is very inconvenient, and the current cutting equipment being only suitable for cutting larger main gas pipes, requiring the use of other cutting equipment for thinner inlet pipes, resulting in low cutting efficiency. Therefore, this invention provides a cutting device for gas pipeline installation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for gas pipeline installation, comprising a first device ring, a second device ring disposed on one side of the first device ring, a positioning structure disposed at the top of the first device ring, a rotating ring disposed at the front end of the first device ring, a first cutting structure disposed on the rotating ring, a movable ring fixed at the rear end of the rotating ring, a toothed ring disposed on the outer side of the movable ring, a second cutting structure disposed on the outer side of the second device ring, a gear meshing on one side of the toothed ring, a rotating shaft connected to the rear end of the gear, and a drive motor mounted at the rear end of the rotating shaft.

[0006] A second support frame is provided on one side of the first support frame, and a vertical slot is provided on the inner side of the first support frame. A horizontal slot is provided on one side of the first support frame. A positioning block is fixed on the outer wall of the second support frame, and a positioning groove matching the positioning block is provided on the outer wall of the first support frame. A plug is engaged on the inner side of the vertical slot. A screw is provided on the inner side of the first equipment ring and the second equipment ring, and a mounting block is provided at the bottom of the first equipment ring and the second equipment ring.

[0007] The mounting base has a movable groove on its inner side and a mounting hole on its top. A cylinder is installed on the inner side of the movable groove. A retaining ring is provided at the output end of the cylinder. A retaining bracket is engaged on the inner side of the retaining ring. A laser cutting head is fixed on one side of the retaining bracket. A limit plate is installed on the top of the mounting base.

[0008] An installation rod is engaged with the inner side of the installation sleeve, a spring is connected to the inner side of the installation rod, a plug is provided at the top of the spring, and a circular blade is installed at one end of the installation rod.

[0009] Preferably, there are two of each of the rotating ring, movable ring, and toothed ring. The rotating ring is provided with a magnetic groove and a magnetic block. The two rotating rings are engaged and connected by the magnetic groove and the magnetic block. The rear end of the movable ring is provided with a slider. The movable ring is rotatably connected to the first device ring by the slider and an annular groove. The ends of the movable ring are respectively provided with a locking block and a locking groove. The two movable rings are fixedly connected by the locking block and the locking groove. A protective cover is provided on the outside of the gear and the protective cover is fixed to the outer wall of the drive motor.

[0010] Preferably, the first support frame and the second support frame are respectively welded to the top of the first equipment ring and the second equipment ring, and the first equipment ring and the second equipment ring are engaged and connected by the first support frame, the second support frame, the positioning block and the positioning groove.

[0011] Preferably, there are two sets of horizontal slots, and the insert rod is engaged with both the horizontal and vertical slots. The screw is connected to the first and second equipment rings via threads, and there are four screws. The first and second equipment rings are fixedly installed by mounting blocks and bolts.

[0012] Preferably, the mounting base and the rotating ring are fixedly installed through mounting holes and bolts, and the mounting base is movably connected to the first equipment ring and the second equipment ring through the rotating ring, the movable ring, the toothed ring and the slider.

[0013] Preferably, the cylinder is fixedly installed in the movable groove, and the laser cutting head is connected to the cylinder by a retaining ring and a retaining bracket.

[0014] Preferably, the limiting plate and the mounting base are fixedly installed by bolts, and the limiting plate is provided with rollers inside, and the limiting plate is attached to the top of the laser cutting head by the rollers.

[0015] Preferably, the mounting sleeve is fixed to the gear and extends through to the outside of the protective cover, and the mounting rod is engaged with the mounting sleeve.

[0016] Preferably, the mounting sleeve has a circular groove that matches the insert block, and the mounting rod and the mounting sleeve are engaged and fixed by a spring, the insert block and the circular groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] First, this invention, by setting up a first support frame, a second support frame, a plug rod, a horizontal slot, and a vertical slot, secures the first and second equipment rings to the outside of the gas pipe via mounting blocks, the first support frame, and the second support frame. Four screws are then tightened to clamp them against the outer wall of the gas pipe. Because the first and second equipment rings are small and easy to install, they can be clamped at any position on the gas pipe. Furthermore, after the first and second support frames are fixed, the plug rod is passed through the horizontal or vertical slot and inserted into the ground, thus reinforcing the installation of the first and second equipment rings with the gas pipe.

[0019] Secondly, this invention, by setting up a mounting base, cylinder, clamp, retaining ring, and laser cutting head, fixes the mounting base to the corresponding position on the rotating ring through mounting holes and bolts. Adjust the distance between the mounting base and the gas pipe, and then insert the corresponding model of laser cutting head into the movable groove inside the mounting base. The clamp at the end of the laser cutting head engages and is fixed with the retaining ring at the output end of the cylinder. The limiting plate is fixed to the end position of the mounting base with bolts, and the limiting plate is attached to the top of the laser cutting head by rollers, thus limiting the laser cutting head and allowing it to move horizontally inside the mounting base. When the cylinder drives the laser cutting head to extend, the distance between the laser cutting head and the gas pipe is adjusted so that the laser cutting head contacts the outer wall of the gas pipe. During continuous rotation, the gas pipe is cut without the need to stop work and manually adjust the laser cutting head.

[0020] Third, this invention, by setting up an installation rod, installation sleeve, insert block, spring, and circular blade, allows for the cutting of thin gas pipes entering the house. The installation rod is inserted into the installation sleeve on the outer wall of the gear. The installation sleeve presses against the insert block inside the installation rod, causing the insert block to compress the spring at its bottom and retract into the installation rod. This allows the installation rod to be fully inserted into the installation sleeve. After insertion, the insert block inside the installation rod, supported by the spring force, pops out and inserts into the circular groove at the top of the installation sleeve. The insert block and the circular groove then engage and fix the installation rod with the installation sleeve, thereby fixing the circular blade to the gear. When the drive motor rotates the gear, it drives the circular blade to rotate, bringing the gas pipe close to the high-speed rotating circular blade, thus achieving gas pipe cutting. This gives the cutting equipment the ability to cut pipes of different diameters. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a front view structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the first support frame structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the horizontal slot of the present invention;

[0025] Figure 5 This is a schematic diagram of the toothed ring of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged diagram of A in the middle;

[0027] Figure 7 This is a schematic diagram of the magnetic suction groove of the present invention;

[0028] Figure 8This is a schematic diagram of the first cutting structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the laser cutting head of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged diagram of B in the diagram;

[0031] Figure 11 This is a schematic diagram of the gear of the present invention;

[0032] Figure 12 This is a schematic diagram of the protective cover of the present invention;

[0033] Figure 13 This is a schematic diagram of the second cutting structure of the present invention;

[0034] Figure 14 For the present invention Figure 13 An enlarged diagram of C in the diagram.

[0035] In the diagram: 1. First equipment ring; 2. Second equipment ring; 3. Positioning structure; 301. First support frame; 302. Second support frame; 303. Horizontal slot; 304. Vertical slot; 305. Insert rod; 306. Positioning block; 307. Screw; 308. Mounting block; 4. Rotating ring; 5. Magnetic groove; 6. Magnetic block; 7. First cutting structure; 701. Mounting base; 702. Movable groove; 703. Cylinder; 70 4. Snap ring; 705. Snap bracket; 706. Laser cutting head; 707. Limiting plate; 708. Mounting hole; 8. Movable ring; 9. Gear ring; 10. Slider; 11. Gear; 12. Rotating shaft; 13. Protective cover; 14. Second cutting structure; 1401. Mounting sleeve; 1402. Mounting rod; 1403. Spring; 1404. Insert block; 1405. Circular blade; 15. Drive motor; 16. Clamping block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-4A cutting device for gas pipeline installation includes a first device ring 1, a second device ring 2 on one side of the first device ring 1, a positioning structure 3 at the top of the first device ring 1, a rotating ring 4 at the front end of the first device ring 1, a first cutting structure 7 on the rotating ring 4, a movable ring 8 fixed at the rear end of the rotating ring 4, a toothed ring 9 on the outer side of the movable ring 8, a second cutting structure 14 on the outer side of the second device ring 2, a gear 11 meshing on one side of the toothed ring 9, a rotating shaft 12 connected to the rear end of the gear 11, a drive motor 15 mounted at the rear end of the rotating shaft 12, and a first support frame 301 on one side of the positioning structure 3. The positioning structure 3 includes a first support frame 301, a second support frame 302 on one side of the first support frame 301, and an opening on the inner side of the first support frame 301. The system includes a vertical slot 304, a horizontal slot 303 on one side of the first support frame 301, a positioning block 306 fixed to the outer wall of the second support frame 302, and a positioning groove matching the positioning block 306 on the outer wall of the first support frame 301. A plug rod 305 engages with the inner side of the vertical slot 304. Screws 307 are provided on the inner sides of the first equipment ring 1 and the second equipment ring 2, and mounting blocks 308 are provided at the bottom ends of the first equipment ring 1 and the second equipment ring 2. There are two rotating rings 4, two movable rings 8, and two toothed rings 9. The rotating ring 4 has a magnetic groove 5 and a magnetic block 6, and the two rotating rings 4 are connected by the magnetic groove 5 and the magnetic block 6. A slider 10 is provided at the rear end of the movable ring 8, and the movable ring 8 is connected to the first equipment ring 1 by the slider 10 and the ring... The two movable rings 8 are fixedly connected by a rotatable groove. A locking block 16 and a locking groove are respectively provided at the ends of the movable rings 8. A protective cover 13 is provided on the outer side of the gear 11 and is fixed to the outer wall of the drive motor 15. The first support frame 301 and the second support frame 302 are respectively welded to the tops of the first equipment ring 1 and the second equipment ring 2. The first equipment ring 1 and the second equipment ring 2 are engaged and connected by the first support frame 301, the second support frame 302, the positioning block 306, and the positioning groove. There are two sets of horizontal slots 303, and the insertion rod 305 is engaged and connected to both the horizontal slot 303 and the vertical slot 304. The screw 307 is movably connected to the first equipment ring 1 and the second equipment ring 2 by a thread. There are four rings in total. The first ring 1 and the second ring 2 are fixedly installed by mounting block 308 and bolts, engaging the first ring 1 and the second ring 2 on the outside of the gas pipe. The first support frame 301 at the top of the first ring 1 and the second support frame 302 at the top of the second ring 2 are engaged by positioning block 306 and positioning groove. The first ring 1 and the second ring 2 are fixedly installed by mounting block 308 at the bottom and bolts. At this time, the four screws 307 are screwed on, causing the screws 307 to rotate through the threaded grooves of the first ring 1 and the second ring 2, thus continuously extending and fitting against the outer wall of the gas pipe. Thus, the first ring 1 and the second ring 2 are evenly fixed on the outside of the gas pipe with the support of the four screws 307.Because the first device ring 1 and the second device ring 2 are small in size and easy to install, they can be snapped into any position on the gas pipe. Simultaneously, the first support frame 301 and the second support frame 302 can be installed from different directions to maximize adaptability to the gas pipe. After the first support frame 301 and the second support frame 302 are fixed, the insertion rod 305 is passed through the horizontal slot 303 or the vertical slot 304 and inserted into the ground, which can reinforce the installation of the first device ring 1 and the second device ring 2 with the gas pipe, ensuring the stability of the installation.

[0038] Please see Figures 5-10 A cutting device for gas pipeline installation, comprising a first cutting structure 7 including a mounting base 701, a movable groove 702 on the inner side of the mounting base 701, and a mounting hole 708 on the top of the mounting base 701. A cylinder 703 is mounted on the inner side of the movable groove 702, a retaining ring 704 is provided at the output end of the cylinder 703, a retaining bracket 705 is engaged on the inner side of the retaining ring 704, a laser cutting head 706 is fixed on one side of the retaining bracket 705, and a limit plate 70 is mounted on the top of the mounting base 701. 7. The mounting base 701 and the rotating ring 4 are fixedly installed through the mounting hole 708 and bolts. The mounting base 701 is movably connected to the first equipment ring 1 and the second equipment ring 2 through the rotating ring 4, the movable ring 8, the toothed ring 9, and the slider 10. The cylinder 703 is fixedly installed in the movable groove 702. The laser cutting head 706 is connected to the cylinder 703 by the snap ring 704 and the clip 705. The limiting plate 707 is fixedly installed to the mounting base 701 by bolts, and the limiting plate 707 is equipped with rollers inside. The limiting plate 707 is attached to the top of the laser cutting head 706 via rollers. The mounting base 701 is then fixed to the corresponding position on the rotating ring 4 via the mounting hole 708 and bolts. The distance between the mounting base 701 and the gas pipe is adjusted. Then, the corresponding model laser cutting head 706 is inserted into the movable groove 702 inside the mounting base 701, and the clamp 705 at the end of the laser cutting head 706 engages and is fixed to the retaining ring 704 at the output end of the cylinder 703. The limiting plate 707 is then secured with bolts. The laser cutting head 706 is positioned at the end of the mounting base 701, and the limiting plate 707 is attached to the top of the laser cutting head 706 via rollers, thus limiting the laser cutting head 706. It can move horizontally inside the mounting base 701. When the cylinder 703 drives the laser cutting head 706 to extend, the distance between the laser cutting head 706 and the gas pipe is adjusted so that the laser cutting head 706 contacts the outer wall of the gas pipe. During continuous rotation, the gas pipe is cut without the need to stop work and manually adjust the laser cutting head 706.

[0039] Please see Figures 11-14A gas pipeline installation cutting device, wherein the second cutting structure 14 includes an installation sleeve 1401, an installation rod 1402 is engaged with the inner side of the installation sleeve 1401, a spring 1403 is connected to the inner side of the installation rod 1402, an insert block 1404 is provided at the top of the spring 1403, a circular blade 1405 is installed at one end of the installation rod 1402, the installation sleeve 1401 is fixed to a gear 11 and extends to the outer side of a protective cover 13, the installation rod 1402 is engaged with the installation sleeve 1401, the installation sleeve 1401 has a circular groove that matches the insert block 1404, and the installation rod 1402 and the installation sleeve 1401 are engaged and fixed by the spring 1403, the insert block 1404 and the circular groove. When it is necessary to cut a thin gas pipe for a household, the installation rod 1402 is inserted into the installation sleeve 1401 on the outer wall of the gear 11. In step 401, the mounting sleeve 1401 presses the insert block 1404 inside the mounting rod 1402, causing the insert block 1404 to be compressed by the spring 1403 at its bottom end and retract into the mounting rod 1402. This allows the mounting rod 1402 to be fully inserted into the mounting sleeve 1401. After insertion, the insert block 1404 inside the mounting rod 1402, supported by the elastic force of the spring 1403, pops out and inserts into the circular groove at the top of the mounting sleeve 1401. Through the insert block 1404 and the circular groove, the mounting rod 1402 and the mounting sleeve 1401 are engaged and fixed, thereby fixing the circular blade 1405 to the gear 11. When the drive motor 15 drives the gear 11 to rotate, it will drive the circular blade 1405 to rotate, bringing the gas pipe close to the high-speed rotating circular blade 1405, thus achieving the cutting of the gas pipe. This enables the cutting equipment to cut pipes of different diameters.

[0040] Working Principle: In use, the first device ring 1 and the second device ring 2 are engaged on the outside of the gas pipe. The first support frame 301 at the top of the first device ring 1 and the second support frame 302 at the top of the second device ring 2 are engaged and connected by a positioning block 306 and a positioning groove. The first device ring 1 and the second device ring 2 are then fixed in place by the mounting block 308 at the bottom and bolts. At this time, the four screws 307 are screwed on, causing the screws 307 to rotate through the threaded grooves on the first device ring 1 and the second device ring 2, thus continuously extending and adhering to the outer wall of the gas pipe. Under the support of the four screws 307, the first device ring 1 and the second device ring 2 are evenly fixed on the outside of the gas pipe. Due to the small size of the first device ring 1 and the second device ring 2, and their ease of installation... The mounting brackets 301 and 302 can be installed from different directions to maximize their adaptability to the gas pipe. After the first and second support brackets 301 and 302 are fixed, the insertion rod 305 is passed through the horizontal slot 303 or the vertical slot 304 and inserted into the ground to reinforce the installation of the first and second equipment rings 1 and 2 with the gas pipe, ensuring the stability of the installation. Then, the mounting base 701 is fixed to the corresponding position on the rotating ring 4 through the mounting hole 708 and bolts. The distance between the mounting base 701 and the gas pipe is adjusted, and then the corresponding model laser cutting head 706 is inserted into the movable groove 702 inside the mounting base 701. Furthermore, the clamp 705 at the end of the laser cutting head 706 engages and is fixed with the retaining ring 704 at the output end of the cylinder 703, and the limiting plate 707 is fixed to the end position of the mounting base 701 by bolts. The limiting plate 707 is attached to the top of the laser cutting head 706 by rollers, thus limiting the laser cutting head 706 and allowing it to move horizontally inside the mounting base 701. When the cylinder 703 drives the laser cutting head 706 to extend, the distance between the laser cutting head 706 and the gas pipe is adjusted. At this time, the drive motor 15 is controlled to run. The internal technology of the drive motor 15 is existing technology. After the drive motor 15 runs, it drives the rotating shaft 12 and gear 11 at the output end to rotate. When the gear 11 rotates, it meshes with the toothed ring 9, thereby driving the toothed ring 9 and the movable ring 8 through. The slider 10 and the annular groove rotate inside the first equipment ring 1 and the second equipment ring 2, thereby driving the rotating ring 4 and the first cutting structure 7 to rotate. The laser cutting head 706 on the first cutting structure 7 cuts the gas pipe in one revolution. If it is necessary to cut a thin gas pipe for the household entrance, the mounting rod 1402 is inserted into the mounting sleeve 1401 on the outer wall of the gear 11. The mounting sleeve 1401 presses against the insert 1404 inside the mounting rod 1402, causing the insert 1404 to be compressed against the spring 1403 at its bottom end and retract into the mounting rod 1402. This allows the mounting rod 1402 to be fully inserted into the mounting sleeve 1401. After insertion, the insert 1404 inside the mounting rod 1402 is supported by the elastic force of the spring 1403.The mounting rod 1402 is ejected and inserted into the circular groove at the top of the mounting sleeve 1401. Through the insert block 1404 and the circular groove, the mounting rod 1402 engages and is fixed to the mounting sleeve 1401, thereby fixing the circular blade 1405 to the gear 11. When the drive motor 15 drives the gear 11 to rotate, it will also drive the circular blade 1405 to rotate. By bringing the gas pipe close to the high-speed rotating circular blade 1405, the gas pipe can be cut, enabling the cutting equipment to cut pipes of different diameters.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cutting device for gas pipeline installation, comprising a first device ring (1), characterized in that: A second equipment ring (2) is provided on one side of the first equipment ring (1), and a positioning structure (3) is provided at the top of the first equipment ring (1). A rotating ring (4) is provided at the front end of the first equipment ring (1). A first cutting structure (7) is provided on the rotating ring (4), and a movable ring (8) is fixed at the rear end of the rotating ring (4). A toothed ring (9) is provided on the outer side of the movable ring (8). A second cutting structure (14) is provided on the outer side of the second equipment ring (2). A gear (11) is meshed on one side of the toothed ring (9). A rotating shaft (12) is connected to the rear end of the gear (11). A drive motor (15) is installed at the rear end of the rotating shaft (12). The positioning structure (3) includes a first support frame (301), a second support frame (302) is provided on one side of the first support frame (301), and a vertical slot (304) is provided on the inner side of the first support frame (301). A horizontal slot (303) is provided on one side of the first support frame (301). A positioning block (306) is fixed on the outer wall of the second support frame (302), and a positioning groove matching the positioning block (306) is provided on the outer wall of the first support frame (301). A plug rod (305) is engaged on the inner side of the vertical slot (304). A screw (307) is provided on the inner side of the first device ring (1) and the second device ring (2), and an installation block (308) is provided at the bottom end of the first device ring (1) and the second device ring (2). The first cutting structure (7) includes a mounting base (701), an movable groove (702) is provided on the inner side of the mounting base (701), and a mounting hole (708) is provided on the top of the mounting base (701). A cylinder (703) is installed on the inner side of the movable groove (702), a retaining ring (704) is provided at the output end of the cylinder (703), a retaining bracket (705) is engaged on the inner side of the retaining ring (704), a laser cutting head (706) is fixed on one side of the retaining bracket (705), and a limiting plate (707) is installed on the top of the mounting base (701). The second cutting structure (14) includes a mounting sleeve (1401), an mounting rod (1402) is engaged on the inner side of the mounting sleeve (1401), a spring (1403) is connected to the inner side of the mounting rod (1402), an insert (1404) is provided at the top end of the spring (1403), and a circular blade (1405) is installed at one end of the mounting rod (1402).

2. The cutting equipment for gas pipeline installation according to claim 1, characterized in that: The number of rotating ring (4), movable ring (8) and toothed ring (9) are all two. The rotating ring (4) is provided with magnetic groove (5) and magnetic block (6). The two rotating rings (4) are connected by magnetic groove (5) and magnetic block (6). The rear end of the movable ring (8) is provided with slider (10). The movable ring (8) and the first device ring (1) are rotatably connected by slider (10) and annular groove. The ends of the movable ring (8) are respectively provided with locking block (16) and locking groove. The two movable rings (8) are fixedly connected by locking block (16) and locking groove. The outer side of the gear (11) is provided with protective cover (13). The protective cover (13) is fixed to the outer wall of the drive motor (15).

3. The cutting equipment for gas pipeline installation according to claim 1, characterized in that: The first support frame (301) and the second support frame (302) are respectively welded to the top of the first equipment ring (1) and the second equipment ring (2), and the first equipment ring (1) and the second equipment ring (2) are connected by the first support frame (301), the second support frame (302), the positioning block (306) and the positioning groove.

4. The cutting equipment for gas pipeline installation according to claim 1, characterized in that: There are two sets of horizontal slots (303), and the insert rod (305) is engaged with both the horizontal slot (303) and the vertical slot (304). The screw (307) is connected to the first device ring (1) and the second device ring (2) by a threaded connection. There are four screws (307). The first device ring (1) and the second device ring (2) are fixedly installed by mounting blocks (308) and bolts.

5. A cutting device for gas pipeline installation according to claim 1, characterized in that: The mounting base (701) and the rotating ring (4) are fixedly installed through the mounting hole (708) and bolts, and the mounting base (701) is movably connected to the first equipment ring (1) and the second equipment ring (2) through the rotating ring (4), the movable ring (8), the toothed ring (9) and the gear (11).

6. The cutting equipment for gas pipeline installation according to claim 1, characterized in that: The cylinder (703) is fixedly installed in the movable groove (702), and the laser cutting head (706) is connected to the cylinder (703) by a retaining ring (704) and a retainer (705).

7. A cutting device for gas pipeline installation according to claim 1, characterized in that: The limiting plate (707) and the mounting base (701) are fixedly installed by bolts, and the limiting plate (707) is provided with rollers inside, and the limiting plate (707) is attached to the top of the laser cutting head (706) by the rollers.

8. A cutting device for gas pipeline installation according to claim 1, characterized in that: The mounting sleeve (1401) is fixed on the gear (11) and extends through to the outside of the protective cover (13). The mounting rod (1402) is engaged with the mounting sleeve (1401).

9. A cutting device for gas pipeline installation according to claim 1, characterized in that: The mounting sleeve (1401) has a circular groove that matches the insert (1404), and the mounting rod (1402) and the mounting sleeve (1401) are engaged and fixed by the spring (1403), the insert (1404) and the circular groove.

Images