Base structure for oxygen pipeline connection

Abstract

The utility model relates to the technical field of pipeline fixation, in particular to a base structure for oxygen pipeline connection, which comprises a pipeline connection base mechanism, a pipeline connection base mechanism and a pipeline connection base mechanism. The two fixing mechanisms slide in the sliding grooves, and one ends of the two oxygen pipelines can be limited to the pipeline connecting base mechanism; and the polishing mechanism is fixed to one fixing mechanism and can polish the pipeline welding area. According to the pipeline welding trolley, the two fixing mechanisms are arranged on the trolley, two pre-welded pipelines can be limited on the pipeline connecting base mechanism, follow-up butt joint and grinding are facilitated, work convenience is effectively improved, operation is simple and rapid, meanwhile, the two fixing mechanisms slide on the trolley, and the welding efficiency is improved. And it can be guaranteed that two butt-joint pipelines can move on the same horizontal line, the situation that the welding effect is affected due to inaccurate butt joint is avoided, and working stability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline fixing technology, specifically a base structure for connecting oxygen pipelines. Background Technology

[0002] In industrial production and many other fields, the connection of oxygen pipelines is of paramount importance. Traditional methods of connecting oxygen pipelines often require grinding the ends of the pipelines before using external tools or complex procedures to connect and fix the two pipelines together, a process with drawbacks.

[0003] On the one hand, during the process of transporting the polished pipes to the docking position, the pipe ends are easily damaged again due to collisions, friction, and other factors, affecting the sealing and stability of the connection and increasing the risk of oxygen leakage. This poses a serious threat to safe production, especially in industries such as chemical and medical, where the purity and safety requirements for oxygen are extremely high. On the other hand, traditional operations require the use of different equipment to complete the polishing and docking processes sequentially. This is not only costly in terms of equipment and space, but also involves cumbersome procedures, greatly reducing work efficiency and increasing labor and time costs. It cannot meet the demands of modern industry for fast, efficient, and safe production. Utility Model Content

[0004] The purpose of this invention is to provide a base structure for connecting oxygen pipelines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A base structure for connecting oxygen pipelines, comprising:

[0007] The pipe connection base mechanism includes a trolley, the top of which has a sliding groove;

[0008] The fixing mechanism has two parts, both of which slide inside the slide groove, and can limit one end of the two oxygen pipes to the pipe connection base mechanism.

[0009] The grinding mechanism, fixed to one of the fixed mechanisms, is capable of grinding the welded area of ​​the pipe;

[0010] The docking mechanism has two parts, which are fixed at equal angles between two fixed mechanisms, enabling precise docking of the two pipes.

[0011] Furthermore, the fixing mechanism includes:

[0012] A square rod 1 slides inside the groove, and a ring frame is fixedly connected to one end of the square rod 1.

[0013] Four square holes are provided, opened at equal angles on the outer wall of the ring frame, and a T-shaped frame is slidably inserted into the inside of the square holes.

[0014] Preferably, the fixing mechanism includes:

[0015] The square plate is fixed to one outer wall of the T-shaped frame;

[0016] Limiting block one is fixed at one end of T-shaped frame one;

[0017] A threaded groove is formed on the outer wall of a ring frame one, and a ring frame two is screwed onto the threaded groove;

[0018] Two threaded holes are provided, opened at equal angles on the outer wall of the ring frame;

[0019] Ring frame three rotates on the outer wall of ring frame two, and four sets of inclined frames are fixedly connected to the outer wall of ring frame three at equal angles.

[0020] Preferably, the polishing mechanism includes:

[0021] There are four screws, which are fixed at equal angles to the outer wall of the ring frame. A limit block is fixedly connected to one end of the outer wall of the screw.

[0022] Ring frame four, detachably connected to four screws;

[0023] Four circular holes are provided, which are equally spaced on the outer wall of the square holes. A second circular rod is slidably inserted into the inside of each circular hole, and a third square rod is fixedly connected to the outer wall of the second circular rod.

[0024] Ring frame five is fixed between the outer walls of four square rods three, and ring frame six is ​​fixedly connected to both outer walls of ring frame five.

[0025] Preferably, the polishing mechanism includes:

[0026] A gear ring rotates on the four outer walls of a ring frame. Two blocks are fixedly connected to the outer walls of the gear ring at equal angles. A bolt is screwed onto the outer wall of each block.

[0027] Square rod two slides inside the square block. One end of square rod two is fixedly connected to T-shaped frame two, and sandpaper is fixed to the outer wall of T-shaped frame two.

[0028] A circular rod 1 rotates on the outer wall of the ring frame. A spur gear 1 is fixedly connected to the outer wall of the circular rod 1. The circular rod 1 has a hexagonal groove, and the spur gear 1 meshes with the gear ring for transmission.

[0029] Preferably, the docking mechanism includes:

[0030] An L-shaped frame is fixed to the outer wall of one of the ring frames, and a rack is fixedly connected to the outer wall of the L-shaped frame;

[0031] A slide rail is fixed to the outer wall of another ring frame. A rotating seat is slidably inserted inside the slide rail. A spur gear is rotatably connected inside the rotating seat. The spur gear meshes with a rack for transmission. The slide rail is slidably inserted into the outer wall of the rack.

[0032] The handle slides on the outer wall of the slide rail and is fixedly connected to the second spur gear.

[0033] Bolt 2 is screwed onto the outer wall of the slide rail, and the outer wall of Bolt 2 is rotatably connected to the outer wall of the rotating seat.

[0034] Preferably, the docking mechanism includes:

[0035] A square groove is formed on the inner wall of one side of the slide rail. An inclined block is slidably inserted into the square groove. A spring is fixedly connected between the outer wall of the inclined block and the inner wall of the square groove.

[0036] Several protrusions are provided and are fixed at equal angles to the outer wall of one side of the spur gear.

[0037] Compared with the prior art, the beneficial effects of this utility model are:

[0038] 1. By setting two fixing mechanisms on the trolley, two pre-welded pipes can be limited on the pipe connection base mechanism, which facilitates subsequent docking and grinding, effectively improving work convenience and making operation simple and quick. At the same time, the sliding of the two fixing mechanisms on the trolley can ensure that the two docking pipes can move on the same horizontal line, avoiding inaccurate docking and affecting the welding effect, and effectively improving work stability.

[0039] 2. The grinding mechanism allows for simultaneous grinding of two pipe welding positions, effectively improving work efficiency and providing convenient operation. It avoids the limitations of operating space and prevents improper use of other grinding tools, which could cause the grinding tools to collide with the fixed mechanism components, resulting in damage and reduced service life. Furthermore, the ring frame five can catch the grinding powder generated from inside the pipe, and the ring frame six, which adheres to the inner wall of the pipe, can prevent dust from spreading, facilitating cleaning after grinding and effectively improving work convenience.

[0040] 3. The docking mechanism allows for easy connection of two pipes without requiring significant force, effectively improving operational convenience. Furthermore, the gap is easily adjustable; the inclusion of wedges and protrusions enables unidirectional limiting, preventing the pipes from wobbling or slipping after docking, which could affect grinding or welding work and significantly improve operational stability. To release the limiting mechanism, simply turn bolt two to separate the spur gear from the rack, further enhancing operational convenience. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0042] Figure 2 This is a schematic diagram of the fixing mechanism in this utility model;

[0043] Figure 3 This is a schematic diagram of the grinding mechanism in this utility model;

[0044] Figure 4 This is a schematic diagram of the docking mechanism in this utility model.

[0045] In the diagram: 100, Pipe connection base mechanism; 110, Trolley; 111, Slide groove; 200, Fixing mechanism; 210, Square rod one; 211, Ring frame one; 212, Square hole; 213, T-shaped frame one; 214, Limiting block one; 215, Threaded groove; 216, Square plate; 220, Ring frame two; 221, Ring frame three; 222, Inclined frame; 223, Threaded hole; 300, Grinding mechanism; 310, Screw; 311, Limiting block two; 312, Ring frame four; 313, Round hole; 320, Gear ring; 321 322. Round rod 1; 323. Spur gear 1; 324. Hexagonal groove; 335. Square block; 336. Square rod 2; 337. T-shaped frame 2; 338. Bolt 1; 349. Round rod 2; 340. Square rod 3; 341. Ring frame 5; 342. Ring frame 6; 400. Connecting mechanism; 410. L-shaped frame; 411. Rack; 420. Slide rail; 421. Rotating seat; 422. Bolt 2; 423. Handle; 424. Spur gear 2; 425. Protrusion; 430. Square groove; 431. Inclined block; 432. Spring. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Please see Figure 1-4In this embodiment of the utility model, an oxygen pipeline connection base structure includes a pipeline connection base mechanism 100. The pipeline connection base mechanism 100 includes a trolley 110 and the following parts: a sliding groove 111 is provided on the top of the trolley 110, and two fixing mechanisms 200 are provided, both sliding inside the sliding groove 111, which can limit one end of two oxygen pipelines on the pipeline connection base mechanism 100. A grinding mechanism 300 is fixed to one of the fixing mechanisms 200, which can grind the welding area of ​​the pipeline. Two docking mechanisms 400 are provided, which are fixed at equal angles between the two fixing mechanisms 200, which can accurately dock the two pipelines. The fixing mechanism 200 includes the following parts: a square rod 210 slides inside the sliding groove 111, and a ring frame 211 is fixedly connected to one end of the square rod 210. Four holes 212 are provided, opened at equal angles on the outer wall of ring frame 1 211. T-shaped frame 1 213 is slidably inserted inside the square hole 212. Its square plate 216 is fixed on the outer wall of T-shaped frame 1 213. Limiting block 1 214 is fixed at one end of T-shaped frame 1 213. Its threaded groove 215 is opened on the outer wall of ring frame 1 211. Ring frame 220 is screwed onto the threaded groove 215. Two threaded holes 223 are provided, opened at equal angles on the outer wall of ring frame 220. Ring frame 3 221 rotates on the outer wall of ring frame 220. Four sets of inclined frames 222 are fixedly connected at equal angles on the outer wall of ring frame 3 221. By setting two fixing mechanisms 200 on the trolley 110, the two pre-welded pipes can be limited on the pipe connection base mechanism 100, which facilitates subsequent assembly and grinding and effectively improves the convenience of work.

[0048] The grinding mechanism 300 includes the following parts: four screws 310 are fixed at equal angles to the outer wall of the ring frame 211; a limit block 311 is fixedly connected to one end of the outer wall of the screws 310; the ring frame 312 is detachably connected to the four screws 310; four round holes 313 are provided, opened at equal angles on the outer wall of the square holes 212; a round rod 340 is slidably inserted into the round hole 313; a square rod 341 is fixedly connected to the outer wall of the round rod 340; the ring frame 342 is fixed between the outer walls of the four square rods 341; and ring frames 343 are fixedly connected to the outer walls of both sides of the ring frame 342; the gear ring 320 rotates on the ring frame 312. On the outer wall, two square blocks 330 are fixedly connected at equal angles to the outer wall of the gear ring 320, and bolts 333 are screwed onto the outer wall of the square blocks 330. The square rod 331 slides inside the square blocks 330. A T-shaped frame 332 is fixedly connected to one end of the square rod 331, and sandpaper is fixed to the outer wall of the T-shaped frame 332. The round rod 321 rotates on the outer wall of the ring frame 312. A spur gear 322 is fixedly connected to the outer wall of the round rod 321, and a hexagonal groove 323 is opened on the round rod 321. The spur gear 322 meshes with the gear ring 320 for transmission. By setting up a grinding mechanism 300, the welding positions of two pipes can be ground at the same time, which effectively improves the work efficiency.

[0049] The docking mechanism 400 includes the following parts: an L-shaped frame 410 is fixed to the outer wall of one of the ring frames 211; a rack 411 is fixedly connected to the outer wall of the L-shaped frame 410; a slide rail 420 is fixed to the outer wall of the other ring frame 211; a rotating seat 421 is slidably inserted inside the slide rail 420; a spur gear 424 is rotatably connected inside the rotating seat 421; the spur gear 424 meshes with the rack 411 for transmission; the slide rail 420 is slidably inserted into the outer wall of the rack 411; and a handle 423 slides on the outer wall of the slide rail 420, and the handle 423 is fixedly connected to the spur gear 424. The bolt 422 is screwed onto the outer wall of the slide rail 420, and the outer wall of the bolt 422 is rotatably connected to the outer wall of the rotating seat 421. The square groove 430 is opened on the inner wall of one side of the slide rail 420. An inclined block 431 is slidably inserted into the square groove 430. A spring 432 is fixedly connected between the outer wall of the inclined block 431 and the inner wall of the square groove 430. Several protrusions 425 are provided and fixed at equal angles on the outer wall of one side of the spur gear 424. By setting the docking mechanism 400, it is convenient for personnel to operate to dock the two pipes without using a lot of force, which effectively improves the convenience of operation.

[0050] Specifically, during operation, the oxygen pipeline is hoisted, allowing the pipeline connecting base mechanism 100 to pass through the ring frame 211 onto the pipeline. The pipeline connecting base mechanism 100 is then moved to one end of the oxygen pipeline. The other pipeline is hoisted and passed through the ring frame 211 on another fixing mechanism 200. Personnel screw a pry bar into the threaded hole 223 for fixation. Two people work together to rotate the ring frame 220, engaging it with the threaded groove 215, causing the inclined frame 222 to slide into the ring frame 211. When the inclined frame 222 and the square plate... After contact at 216, the T-shaped bracket 213 is compressed, causing the limiting block 214 to move downwards until it is flush against the outer wall of the pipe, thus limiting one end of both pipes to the pipe connection base mechanism 100. The ring bracket 342 is then inserted into the ring bracket 312 through the round hole 313. The ring bracket 342 can be replaced according to the pipe wall thickness. After installation, the T-shaped bracket 332 is lowered by turning the bolt 333 until it is flush against the outer wall of one end of the pipe. Two workers then turn the handles 423 located on both sides of the fixing mechanism 200 to move the T-shaped bracket 332. Spur gear 424 meshes with rack 411, causing the pipe limited by one of the fixing mechanisms 200 to move towards the pipe limited by the other fixing mechanism 200, until it touches the outer wall of the other side of T-shaped frame 332. The operator uses an electric wrench to drive spur gear 322 to rotate and mesh with gear ring 320, causing T-shaped frame 332 to rotate and grind the welding position of the two pipes. After grinding, the operator twists bolt 422, causing rotating seat 421 to drive spur gear 424 to slide to one side and separate from rack 411, pulling one of the fixing mechanisms 200 to move and separate the two pipes. Ring frame 342 is removed from ring frame 312. At the same time, the inside of the pipe is cleaned. After completion, T-shaped frame 332 is returned to its original position. The docking mechanism 400 is operated in the same way as above to make the two pipes accurately docked. The operator welds them. After completion, the fixing mechanism 200 is released from the pipe, and the trolley 110 is pushed along the pipe to move to the next place that needs to be welded.

[0051] Example 1

[0052] like Figure 2As shown, in this embodiment, the fixing mechanism 200 includes the following parts: a square rod 210 slides inside the sliding groove 111, a ring frame 211 is fixedly connected to one end of the square rod 210, four square holes 212 are provided, which are opened at equal angles on the outer wall of the ring frame 211, a T-shaped frame 213 is slidably inserted inside the square hole 212, a square plate 216 is fixed to the outer wall of the T-shaped frame 213, a limiting block 214 is fixed to one end of the T-shaped frame 213, a threaded groove 215 is opened on the outer wall of the ring frame 211, a ring frame 220 is screwed onto the threaded groove 215, two threaded holes 223 are provided, which are opened at equal angles on the outer wall of the ring frame 220, and a ring frame 321 rotates on the outer wall of the ring frame 220, and four sets of inclined frames 222 are fixedly connected at equal angles on the outer wall of the ring frame 321.

[0053] In this embodiment, the oxygen pipeline is lifted so that the pipeline connecting base mechanism 100 passes through the ring frame 211 onto the pipeline, and the pipeline connecting base mechanism 100 is pushed to move to one end of the oxygen pipeline. Another pipeline is lifted and passed through the ring frame 211 on another fixing mechanism 200. Personnel screw a pry bar into the threaded hole 223 for fixation. Two people work together to rotate the ring frame 220 and screw it into the threaded groove 215, causing the inclined frame 222 to slide into the ring frame 211. When the inclined frame 222 contacts the square plate 216, the T-shaped frame 213 is compressed and limited. Block 214 moves downwards until it is close to the outer wall of the pipe, so that one end of both pipes is limited on the pipe connection base mechanism 100. By setting two fixing mechanisms 200 on the trolley 110, the two pre-welded pipes can be limited on the pipe connection base mechanism 100, which facilitates subsequent docking and grinding, effectively improving work convenience and making the operation simple and quick. At the same time, the two fixing mechanisms 200 slide on the trolley 110, which can ensure that the two docking pipes can move on the same horizontal line, avoiding inaccurate docking and affecting the welding effect, effectively improving work stability.

[0054] like Figure 3As shown, in this embodiment, the grinding mechanism 300 includes the following parts: four screws 310 are provided, fixed at equal angles to the outer wall of the ring frame 211; a limiting block 311 is fixedly connected to one end of the outer wall of the screws 310; the ring frame 312 is detachably connected to the four screws 310; four round holes 313 are provided, opened at equal angles on the outer wall of the square holes 212; a round rod 340 is slidably inserted into the round hole 313; a square rod 341 is fixedly connected to the outer wall of the round rod 340; the ring frame 342 is fixed between the outer walls of the four square rods 341; and both outer walls of the ring frame 342 are fixedly connected to... A ring frame 343 is connected, and its gear ring 320 rotates on the outer wall of the ring frame 312. Two square blocks 330 are fixedly connected at equal angles on the outer wall of the gear ring 320, and bolts 333 are screwed onto the outer wall of the square blocks 330. The square rod 331 slides inside the square blocks 330. A T-shaped frame 332 is fixedly connected to one end of the square rod 331, and sandpaper is fixed on the outer wall of the T-shaped frame 332. The round rod 321 rotates on the outer wall of the ring frame 312, and a spur gear 322 is fixedly connected to the outer wall of the round rod 321. A hexagonal groove 323 is opened on the round rod 321, and the spur gear 322 meshes with the gear ring 320 for transmission.

[0055] In practice, ring frame five 342 is inserted into ring frame four 312 through the round hole 313. Ring frame five 342 can be replaced according to the pipe wall thickness. After installation, bolt one 333 is turned to lower the position of T-shaped frame two 332 until it is close to the outer wall of one end of the pipe. Two workers turn the handles 423 on both sides of the fixing mechanism 200 respectively, which moves the pipe limited by one fixing mechanism 200 to the pipe limited by the other fixing mechanism 200 until it is close to the outer wall of the other side of T-shaped frame two 332. The workers use an electric wrench to drive the spur gear one 322 to rotate and mesh with the gear ring 320, which moves T-shaped frame two 332. 2. The rotating mechanism grinds the welded positions of two pipes simultaneously. The grinding mechanism 300 allows for simultaneous grinding of two welded positions, effectively improving work efficiency and providing convenient operation. It avoids the limitations of operating space and prevents improper use of other grinding tools, which could cause the grinding tools to collide with the fixed mechanism 200, resulting in damage and reduced service life. Furthermore, the ring frame 5 342 catches the grinding powder generated from inside the pipe, while the ring frame 6 343 adheres to the inner wall of the pipe to prevent dust diffusion, facilitating cleaning after grinding and effectively improving work convenience.

[0056] Example 2

[0057] like Figure 4As shown, in this embodiment, the docking mechanism 400 includes the following parts: its L-shaped frame 410 is fixed to the outer wall of one of the ring frames 211; a rack 411 is fixedly connected to the outer wall of the L-shaped frame 410; a slide rail 420 is fixed to the outer wall of the other ring frame 211; a rotating seat 421 is slidably inserted into the slide rail 420; and a spur gear 424 is rotatably connected inside the rotating seat 421. The spur gear 424 meshes with the rack 411 for transmission. The slide rail 420 is slidably inserted into the outer wall of the rack 411. Its handle 4... 23 slides on the outer wall of the slide rail 420, and the handle 423 is fixedly connected to the second spur gear 424. The second bolt 422 is screwed onto the outer wall of the slide rail 420, and the outer wall of the second bolt 422 is rotatably connected to the outer wall of the rotating seat 421. The square groove 430 is opened on the inner wall of one side of the slide rail 420. An inclined block 431 is slidably inserted into the square groove 430. The outer wall of the inclined block 431 is fixedly connected to the inner wall of the square groove 430. Several protrusions 425 are provided and are fixed at equal angles on the outer wall of one side of the second spur gear 424.

[0058] In practical implementation, the docking mechanism 400 allows for easy docking of two pipes without requiring significant force, effectively improving operational convenience. Furthermore, the gap is easily adjustable. The wedge block 431 and protrusion 425 provide unidirectional limiting, preventing the two pipes from wobbling or slipping after docking, which could affect grinding or welding work and significantly improve operational stability. To release the limiting of the two pipes, simply twist bolt 422 to separate the spur gear 424 from the rack 411, further enhancing operational convenience.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A base structure for connecting oxygen pipelines, characterized in that, include: The pipe connection base mechanism (100) includes a trolley (110) with a groove (111) on the top of the trolley (110); There are two fixing mechanisms (200), both of which slide inside the slide groove (111) and can limit one end of the two oxygen pipes to the pipe connection base mechanism (100); The grinding mechanism (300), fixed on one of the fixing mechanisms (200), is capable of grinding the welded area of ​​the pipe; The docking mechanism (400) has two parts, which are fixed at equal angles between the two fixing mechanisms (200) to accurately dock the two pipes.

2. The base structure for connecting oxygen pipelines according to claim 1, characterized in that, The fixed mechanism (200) includes: Square rod 1 (210) slides inside the sliding groove (111), and one end of square rod 1 (210) is fixedly connected to ring frame 1 (211); Four square holes (212) are provided, which are opened at equal angles on the outer wall of the ring frame (211). A T-shaped frame (213) is slidably inserted into the square hole (212).

3. The base structure for connecting oxygen pipelines according to claim 2, characterized in that, The fixed mechanism (200) includes: Square plate (216) is fixed to the outer wall of T-shaped frame (213); Limiting block 1 (214) is fixed at one end of T-shaped frame 1 (213); A threaded groove (215) is formed on the outer wall of the first ring frame (211), and a second ring frame (220) is screwed onto the threaded groove (215); Two threaded holes (223) are provided, and are equally spaced on the outer wall of the second ring frame (220); Ring frame three (221) rotates on the outer wall of ring frame two (220), and four sets of inclined frames (222) are fixedly connected at equal angles on the outer wall of ring frame three (221).

4. The base structure for connecting oxygen pipelines according to claim 3, characterized in that, The polishing mechanism (300) includes: There are four screws (310), which are fixed at equal angles to the outer wall of the ring frame (211). The outer wall of the screw (310) is fixedly connected to the second limit block (311) near one end. Ring frame four (312) is detachably connected to four screws (310); Four round holes (313) are provided and are opened at equal angles on the outer wall of the square hole (212). A round rod two (340) is slidably inserted into the round hole (313), and a square rod three (341) is fixedly connected to the outer wall of the round rod two (340). Ring frame five (342) is fixed between the outer walls of four square rods three (341), and ring frame six (343) is fixedly connected to the outer walls on both sides of ring frame five (342).

5. The base structure for connecting oxygen pipelines according to claim 4, characterized in that, The polishing mechanism (300) includes: The gear ring (320) rotates on the outer wall of the ring frame (312). Two blocks (330) are fixedly connected at equal angles on the outer wall of the gear ring (320). A bolt (333) is screwed onto the outer wall of the blocks (330). Square rod 2 (331) slides inside the block (330). One end of square rod 2 (331) is fixedly connected to T-shaped frame 2 (332). Sandpaper is fixed to the outer wall of T-shaped frame 2 (332). A round rod (321) rotates on the outer wall of the ring frame (312). A spur gear (322) is fixedly connected to the outer wall of the round rod (321). The round rod (321) has a hexagonal groove (323). The spur gear (322) meshes with the gear ring (320) for transmission.

6. The base structure for connecting oxygen pipelines according to claim 5, characterized in that, The docking agencies (400) include: The L-shaped frame (410) is fixed to the outer wall of one of the ring frames (211), and the outer wall of the L-shaped frame (410) is fixedly connected to the rack (411); The slide rail (420) is fixed to the outer wall of another ring frame (211). A rotating seat (421) is slidably inserted inside the slide rail (420). A spur gear (424) is rotatably connected inside the rotating seat (421). The spur gear (424) meshes with the rack (411) for transmission. The slide rail (420) is slidably inserted into the outer wall of the rack (411). The handle (423) slides on the outer wall of the slide rail (420), and the handle (423) is fixedly connected to the second spur gear (424); Bolt 2 (422) is screwed onto the outer wall of slide rail (420), and the outer wall of bolt 2 (422) is rotatably connected to the outer wall of rotating seat (421).

7. The base structure for connecting oxygen pipelines according to claim 6, characterized in that, The docking agencies (400) include: A square groove (430) is opened on the inner wall of one side of the slide rail (420). An inclined block (431) is slidably inserted inside the square groove (430). A spring (432) is fixedly connected between the outer wall of the inclined block (431) and the inner wall of the square groove (430). Several protrusions (425) are provided and are fixed at equal angles on one side of the outer wall of the second spur gear (424).

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