Self-cleaning pipe ball thrower

Abstract

The application relates to the technical field of pipeline cleaning, in particular to a self-cleaning pipeline ball thrower, which comprises a butt joint main pipe, two butt joint auxiliary pipes are fixedly connected to the outer wall of the butt joint main pipe and butt joint with oil pipes through connectors, a throwing pipe is fixedly connected to the upper end of the butt joint main pipe, a valve is arranged in the throwing pipe, an installation support is fixedly connected to the outer wall of the throwing pipe, detection mechanisms are fixedly arranged between the outer wall of the installation support and each butt joint auxiliary pipe, a gas filling mechanism is fixedly arranged at the upper end of the installation support, a throwing mechanism for throwing hollow cleaning balls is fixedly arranged at the upper end of the throwing pipe, different pipe diameters can be automatically adapted and accurate gas filling can be realized, the detection mechanisms can identify different pipe diameters such as 100MM, 120MM and 140MM, a corresponding number of cylinders are linked to realize gas filling, manual replacement of cleaning balls or adjustment of the gas filling amount is not needed, and the problems of incomplete cleaning caused by insufficient gas filling or jamming caused by excessive gas filling are avoided.

Description

Technical Field

[0001] This invention relates to the field of pipeline cleaning technology, specifically a self-cleaning pipeline ball thrower. Background Technology

[0002] In various industrial pipeline systems, especially oil pipelines transporting petroleum and chemical raw materials, over time, a considerable amount of oil, scale, and rust will accumulate on the inner walls. These substances may seem insignificant, but they can gradually clog the pipelines, hindering the flow of media, increasing energy consumption, and in severe cases, potentially causing safety problems such as leaks and corrosion. Therefore, regular cleaning of pipelines is crucial to ensuring the normal operation of the system.

[0003] The commonly used method now is to use a pipeline cleaning ball, which involves inserting a ball into the pipeline and using the thrust of the medium to move it forward, scraping off the dirt by the friction between the ball and the pipe wall. However, the problem is that ordinary pipeline cleaning balls are of fixed size, and one type of ball can only be used for one type of pipe diameter. If you encounter oil pipes of different diameters, you have to change to a different ball, which not only costs more money to keep various balls on hand, but also requires stopping the equipment when changing them.

[0004] Currently, some pipeline cleaning balls are available with adjustable sizes, but most require manual inflation, and the amount of air needed depends entirely on experience. If too little air is inflated, the ball won't stick to the pipe wall and won't clean properly; if too much air is inflated, it may get stuck in the pipe, causing blockages.

[0005] Chinese Patent (Announcement No. CN115625166A) discloses a ball-launching device, including a ball valve, a ball-launching assembly, and a ball-storing assembly. The ball valve includes a medium channel and a ball inlet communicating with the medium channel. The ball-launching assembly includes a guide channel communicating with the ball inlet and a piston moving in the guide channel. The ball-storing assembly includes a ball storage chamber for storing pigging balls and communicating with the guide channel. The ball-storing assembly is configured to move under external force to deliver pigging balls from the ball storage chamber to the guide channel. The piston is configured to move to close or open the ball inlet, and when the ball inlet is opened, it drives the ball-storing assembly to move to inject a pigging ball into the medium channel through the guide channel and the ball inlet. The medium in the medium channel pushes the pigging ball into an oil passage communicating with the medium channel. The pigging ball scrapes the inner wall of the oil passage, removing impurities such as paraffin wax adhering to the inner wall. This disclosed ball-launching device is simpler to operate, has a higher degree of intelligence, a lower failure rate, and higher working efficiency.

[0006] As can be seen from the above scheme, when the above scheme is used, the liquid entering through the inlet channel pushes the cleaning ball in the first valve core channel into the outlet channel. When cleaning oil pipes of different diameters, the size of the cleaning ball cannot be adjusted, which has limitations. Therefore, we propose a self-cleaning pipeline ball launcher. Summary of the Invention

[0007] The purpose of this invention is to provide a self-cleaning pipe ball launcher to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A self-cleaning pipeline ball launcher includes a main docking pipe, two auxiliary docking pipes are fixedly connected to the outer wall of the main docking pipe, the auxiliary docking pipes can be connected to an oil pipe via a connector, a release pipe is fixedly connected to the upper end of the main docking pipe, a valve is installed inside the release pipe, an installation bracket is fixedly connected between the release pipe and the main docking pipe, and a detection mechanism is fixedly installed between the outer wall of the installation bracket and each auxiliary docking pipe.

[0010] An inflation mechanism is fixedly installed at the upper end of the mounting bracket, and a delivery mechanism for delivering hollow cleaning balls is fixedly installed at the upper end of the delivery pipe. After the docking sub-pipe connects with the outer wall of the oil pipe, the detection mechanism detects the diameter of the oil pipe and triggers the inflation mechanism to quantitatively inflate the hollow cleaning ball, so that the hollow cleaning ball can better contact and clean the inner wall of the oil pipe. Then, the delivery mechanism delivers the hollow cleaning ball, so that the hollow cleaning ball falls into the inside of the docking main pipe. With the push of the oil, the hollow cleaning ball is squeezed towards the docking oil pipe.

[0011] As a further aspect of this solution, the detection mechanism includes a swing arm, which is rotatably connected to the upper end of the docking sub-tube. An abutment block is welded and fixed to the end of the swing arm away from the delivery tube. Two abutment plates are also slidably connected to the upper end of the mounting bracket. The end of each swing arm away from the abutment block abuts against the outer wall of a nearby abutment plate. An elastic sheet is fixedly connected to the outer wall of each abutment plate.

[0012] As a further aspect of this solution, the upper end of the mounting bracket is fixedly connected to two abutment plates, the outer wall of each abutment plate abutting against the outer wall of a nearby elastic sheet. The upper end of the mounting bracket is also fixedly connected to two connecting plates, each of which has a movable block slidably connected to the end near the delivery tube, and a connecting column fixedly connected to the end of the movable block away from the connecting plate.

[0013] As a further aspect of this solution, the inflation mechanism includes two electric telescopic arms. The bottom of each electric telescopic arm is fixedly connected to the outer wall of the mounting bracket. A connecting strip is fixedly connected to the output end of each electric telescopic arm. Two connecting steel bars are fixedly connected between the two connecting strips. The outer wall of each connecting steel bar is fixedly connected to the outer wall of a nearby moving block.

[0014] As a further aspect of this solution, the outer wall of the delivery tube is fitted with three second mating rings, which are nested together. Each second mating ring has two abutting blocks fixedly connected to its bottom, and the bottom of all the abutting blocks abuts against the upper end of the mounting bracket.

[0015] As a further aspect of this solution, the upper end of the connecting post abuts against the bottom of a nearby abutting block.

[0016] As a further aspect of this solution, five air plugs are fixedly connected to the upper end of each of the second mating rings, and a first hollow circular plate is fixedly connected to the upper end of the delivery tube. Fifteen cylinders are fixedly connected to the bottom of the first hollow circular plate. An air valve is installed between each cylinder and the first hollow circular plate, and the outer wall of each air plug is slidably connected to the inner wall of a nearby cylinder.

[0017] As a further aspect of this solution, the dispensing mechanism includes a second hollow circular plate, the bottom of which is fixedly connected to the bottom of the first hollow circular plate. A hollow air ring is fixedly connected to the bottom of the second hollow circular plate via a storage spring. The hollow air ring is fixedly connected to the bottom of the second hollow circular plate, and an air needle is fixedly connected to the bottom of the hollow air ring. A connecting ring is also fixedly connected to the bottom of the hollow air ring.

[0018] As a further aspect of this solution, the outer wall of the connecting ring is rotatably connected to multiple mating strips with reset function, and an abutment strip is fixedly connected to the opposite end of all the mating strips. The inner wall of the delivery tube is fixedly connected to a first mating ring.

[0019] As a further aspect of this solution, the movable block and the hollow air ring are fixedly connected by a pull rope.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. When using this invention, it automatically adapts to different pipe diameters and accurately inflates, improving cleaning adaptability and efficiency. The detection mechanism identifies oil pipes of different diameters such as 100MM, 120MM, and 140MM, and links the corresponding number of cylinders to inflate. There is no need for manual replacement of the cleaning ball or adjustment of the inflation volume, avoiding the problem of incomplete cleaning caused by insufficient inflation or blockage caused by excessive inflation. It can flexibly meet the cleaning needs of oil pipes of various specifications.

[0022] 2. When using this invention, the entire process, from pipe diameter detection and quantitative inflation to pig placement and component reset, is completed automatically without manual intervention. At the same time, the air valve of the cylinder that is not moved during inflation is automatically closed to prevent gas from mixing in, thus ensuring the accuracy of the inflation volume. Attached Figure Description

[0023] Figure 1This is a front view of the structure of a self-cleaning pipe ball launcher.

[0024] Figure 2 This is a side view of the structure of a self-cleaning pipe ball launcher.

[0025] Figure 3 This is a schematic diagram of the location and structure of the connecting secondary pipe in a self-cleaning pipe ball launcher.

[0026] Figure 4 This is a schematic diagram of the position and structure of the contact plate in a self-cleaning pipe ball launcher.

[0027] Figure 5 This is a schematic diagram of the position and structure of the launching tube in a self-cleaning pipe ball launcher.

[0028] Figure 6 This is a schematic diagram of the detection mechanism in a self-cleaning pipeline ball launcher.

[0029] Figure 7 This is a side view of the detection mechanism in a self-cleaning pipe ball launcher.

[0030] Figure 8 This is a schematic diagram of the internal structure of a cylinder in a self-cleaning pipe ball launcher.

[0031] Figure 9 This is a schematic diagram of the position and structure of the energy storage spring in a self-cleaning pipe ball launcher.

[0032] Figure 10 This is a schematic diagram of the launching mechanism in a self-cleaning pipe ball launcher.

[0033] Figure 11 This is a schematic diagram of the internal structure of the launching tube in a self-cleaning pipe ball launcher.

[0034] In the diagram: 1. Mounting shell; 2. Rotating cover; 3. Connecting secondary pipe; 4. Mounting bracket; 5. Connecting main pipe; 6. Swing arm; 7. Abutting block; 9. Dispensing pipe; 10. Abutting plate; 11. Electric telescopic arm; 12. Connecting strip; 13. Second mating ring; 14. First hollow circular plate; 15. Connecting column; 16. Connecting plate; 17. Elastic piece; 18. Abutting plate; 19. Slide rod; 20. Cylinder; 21. Air plug;

[0035] 22. Abutment block; 23. First mating ring; 24. Corrugated pipe; 25. Second hollow circular plate; 26. Storage spring; 27. Hollow air ring; 28. Pull rope; 29. ​​Connecting ring; 30. Abutment strip; 31. Mating strip; 32. Air needle; 33. Connecting steel strip; 34. Connecting pipe; 35. Moving block; 101. Detection mechanism; 201. Inflation mechanism; 301. Dispensing mechanism. 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] Example 1: Please refer to Figures 1-3 As shown in the embodiment of the present invention, a self-cleaning pipeline ball launcher includes a main docking pipe 5, and two auxiliary docking pipes 3 are fixedly connected to the outer wall of the main docking pipe 5. The auxiliary docking pipes 3 can be connected to oil pipes through connectors (note that they can only be connected to oil pipes with diameters of 100mm, 120mm and 140mm, and the diameter of the auxiliary docking pipes 3 must be larger than the diameter of all connected oil pipes). The upper end of the main docking pipe 5 is also fixedly connected to a launching pipe 9. A valve is installed inside the launching pipe 9, and the valve port diameter is the same as the diameter of the launching pipe 9. An installation bracket 4 is fixedly connected between the launching pipe 9 and the outer wall of the main docking pipe 5. A detection mechanism 101 is fixedly installed between the outer wall of the installation bracket 4 and each auxiliary docking pipe 3. An inflation mechanism 201 is also fixedly installed at the upper end of the installation bracket 4. A launching mechanism 301 for launching hollow cleaning balls is fixedly installed at the upper end of the launching pipe 9.

[0038] The hollow pigging ball is made of corrosion-resistant neoprene rubber. For pipes with a diameter greater than 100mm, the hollow pigging ball is equipped with an air nozzle. The diameter of the ball can be adjusted by inflating or deflating the air nozzle. This product is existing technology and will not be described in detail here. The hollow pigging ball is initially flat and contains no gas. The cross-sectional diameter of the hollow pigging ball after expansion is 100mm. When cleaning the inner wall of an oil pipe with a cross-sectional diameter of 100mm, its expanded cross-sectional diameter is 103-105mm, and the internal air pressure after inflation is about 0.3-0.4MPa. When cleaning the inner wall of an oil pipe with a cross-sectional diameter of 120mm, its expanded cross-sectional diameter is 123.6-126mm, and the internal air pressure after inflation is about 0.35-0.45MPa. When cleaning the inner wall of an oil pipe with a cross-sectional diameter of 140mm, its expanded cross-sectional diameter is 144.2-147mm, and the internal air pressure after inflation is about 0.4-0.5MPa.

[0039] After the connecting auxiliary pipe 3 is connected to the outer wall of the oil pipe, the detection mechanism 101 can detect the diameter of the oil pipe and trigger the inflation mechanism 201 to quantitatively inflate the hollow cleaning ball, so that the hollow cleaning ball can better contact and clean the inner wall of the oil pipe. Then the delivery mechanism 301 delivers the hollow cleaning ball, so that the hollow cleaning ball falls into the inside of the connecting main pipe 5. With the push of the oil, the hollow cleaning ball is squeezed towards the connected oil pipe. The upper end of the mounting bracket 4 is fixedly connected to the mounting shell 1, and the upper end of the mounting shell 1 is rotatably connected to the rotating cover 2. The outer wall of the mounting shell 1 is equipped with a control terminal (not shown in the figure).

[0040] Example 2: Please refer to Figures 1 to 7 As shown, the detection mechanism 101 includes a swing arm 6, which is rotatably connected to the upper end of the docking sub-pipe 3 via a rotating shaft. An abutment block 7 is welded and fixed to the end of the swing arm 6 away from the delivery pipe 9. The bottom of the abutment block 7 is curved, effectively reducing the friction between the swing arm 6 and the outer wall of the docking pipe. Two abutment plates 10 are slidably connected to the upper end of the mounting bracket 4. The abutment plates 10 are V-shaped. The end of each swing arm 6 away from the abutment block 7 abuts against the outer wall of a nearby abutment plate 10. An elastic piece 17 is fixedly connected to the outer wall of each abutment plate 10 (please refer to...). Figure 3 , Figure 6 );

[0041] The upper end of the mounting bracket 4 is fixedly connected to two abutment plates 18 by bolts. The outer wall of each abutment plate 18 abuts against the outer wall of a nearby elastic piece 17. The upper end of the mounting bracket 4 is also fixedly connected to two connecting plates 16. Each connecting plate 16 is slidably connected to a moving block 35 at one end near the delivery tube 9. Specifically, two sliding rods 19 are fixedly connected to one end of the sliding rod 19 near the moving block 35. The moving block 35 is slidably connected to the outer wall of the two sliding rods 19. A connecting column 15 is fixedly connected to one end of the moving block 35 away from the connecting plate 16.

[0042] Please see Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, the inflation mechanism 201 includes two electric telescopic arms 11. The bottom of each electric telescopic arm 11 is fixedly connected to the outer wall of the mounting bracket 4 by bolts. A connecting strip 12 is fixedly connected to the output end of each electric telescopic arm 11. Two connecting steel bars 33 are fixedly connected between the two connecting strips 12. The outer wall of each connecting steel bar 33 is fixedly connected to the outer wall of a nearby moving block 35. Three second mating rings 13 are sleeved on the outer wall of the delivery tube 9. The three second mating rings 13 are nested together. Two abutting blocks 22 are fixedly connected to the bottom of each second mating ring 13. Several abutting blocks 22 abut against each other. The bottom of all abutting blocks 22 abuts against the upper end of the mounting bracket 4. The upper end of the connecting column 15 abuts against the bottom of a nearby abutting block 22 (please refer to...). Figure 4 , Figure 5 );

[0043] Five air plugs 21 are fixedly connected to the upper end of each second mating ring 13 by bolts. The multiple air plugs 21 are circumferentially distributed at the upper end of the second mating ring 13. The upper end of the dispensing pipe 9 is also fixedly connected to a first hollow circular plate 14. Fifteen cylinders 20 are fixedly connected to the bottom of the first hollow circular plate 14. Each cylinder 20 is connected to the first hollow circular plate 14 by an air valve (the receiving end of the air valve is connected to the transmitting end of the control terminal). The outer wall of each air plug 21 is slidably connected to the inner wall of a nearby cylinder 20. A one-way air valve is fixedly connected to the outer wall of the air plug 21. Specifically, when the air plug 21 moves upward in the inner wall of the cylinder 20, the one-way air valve will close, and when the air plug 21 moves downward, the one-way air valve will open. The one-way air valve can speed up the reset speed of the air plug 21 (the one-way air valve is not shown in the figure).

[0044] Specifically, when the outermost second mating ring 13 moves upward, it will drive the corresponding air plug 21 to move upward simultaneously. The air plug 21 pushes the gas in the cylinder 20 into the connected hollow cleaning ball to complete the inflation, allowing the hollow cleaning ball to come into contact with the inner wall of the oil pipe for cleaning. For a 100mm diameter oil pipe, the hollow cleaning ball needs to be filled with 1.82-2.52L of gas under standard conditions (corresponding to a target gas pressure of 0.3-0.4MPa). The air storage capacity of a single cylinder 20 is 0.5L, and the total air storage capacity of five cylinders 20 is 2.5L, which can meet the requirements. Following this logic, ten cylinders are needed to adapt to a 120mm oil pipe. When using cylinder 20 (total air capacity 5L) to fit a 100mm oil pipe, the hollow cleaning ball needs to replenish 1.82-2.52L of standard state gas. Five cylinders 20 (total air capacity 2.5L) can meet this requirement. However, the inner diameter of a 120mm oil pipe is 20% larger than that of a 100mm pipe, so the diameter of the hollow cleaning ball needs to be increased proportionally (while maintaining the interference fit at 3%-5%). Its internal volume and the required total air volume also increase by about 100% (from 2.5L to about 5L). To fit a 140mm oil pipe, fifteen cylinders (total air capacity 7.5L) are required. All of the above operations must be carried out under standard atmospheric pressure.

[0045] Please see Figure 6 , Figure 7 , Figure 10 , Figure 11 As shown, the dispensing mechanism 301 includes a second hollow circular plate 25, the bottom of which is fixedly connected to the first hollow circular plate 14 via multiple connecting pipes 34 (please refer to...). Figure 4 The bottom of the second hollow circular plate 25 is fixedly connected to a hollow air ring 27 via a storage spring 26. The storage spring 26 is in a compressed storage state. The hollow air ring 27 is fixedly connected to the bottom of the second hollow circular plate 25 via multiple corrugated pipes 24. A telescopic arm is also fixedly connected between the hollow air ring 27 and the second hollow circular plate 25. The telescopic arm can limit the position of the hollow air ring 27. The multiple corrugated pipes 24 are circumferentially distributed between the second hollow circular plate 25 and the hollow air ring 27. A support ring is fixedly connected inside the corrugated pipe 24 to prevent the corrugated pipe 24 from expanding and rupturing when the air pressure inside the corrugated pipe 24 is too high. The corrugated pipe 24 is made of fluororubber, which can withstand high-pressure ventilation and is not easily deformed.

[0046] A hollow air ring 27 has a fixed connection to an air needle 32 at its bottom. A connecting ring 29 is also fixedly connected to the bottom of the hollow air ring 27. The moving block 35 is fixedly connected to the hollow air ring 27 by a pull rope 28. The outer wall of the pull rope 28 slides through the inside of the second hollow circular plate 25. The outer wall of the connecting ring 29 is rotatably connected to multiple mating strips 31 with a reset function via a rotating shaft. Each mating strip 31 is engaged with a reset torsion spring between itself and the connecting ring 29. The multiple mating strips 31 are circumferentially distributed on the outer wall of the connecting ring 29. An abutment strip 30 is fixedly connected to one end of each mating strip 31. The inner wall of the delivery tube 9 is fixedly connected to a first mating ring 23.

[0047] The working principle of this invention is:

[0048] In use, the air inlet of the completely flat hollow pigging ball is connected to the air needle 32. At this time, all the abutment strips 30 will support the bottom of the hollow pigging ball to prevent it from falling. Then, each connecting sub-tube 3 is connected to a 100mm diameter oil pipe through a connector. The bottom of the abutment block 7 abuts against the outer wall of the connected oil pipe. At this time, the abutment block 7 does not move, and all the swing arms 6 do not rotate. If the connected oil pipe has a diameter of 120mm, the abutment block 7 will abut against the outer wall of the oil pipe and move upward. The abutment block 7 will also drive the swing arms 6 to rotate. When the outer wall of the abutment piece 10 is pressed, the abutment piece 10 will move at the upper end of the mounting bracket 4. When the abutment piece 10 moves, it will also drive the elastic piece 17 to press against the outer wall of the abutment plate 18. The elastic piece 17 bends and stores force, and the abutment piece 10 drives the connecting column 15 to move. The connecting column 15 will move to the bottom of one of the three second mating rings 13, and at this time it will abut against the bottom of the corresponding abutment block 22. When the diameter of the connecting pipe is less than 140MM, according to the above working principle, the connecting column 15 will move to the innermost one of the three second mating rings 13 and abut against the bottom of the corresponding abutment block 22.

[0049] After the pipe connection is completed, activate the two electric telescopic booms 11. The two electric telescopic booms 11 drive the connecting bar 12 upward, the connecting bar 12 drive the connecting steel bar 33 upward, and the connecting steel bar 33 drive the moving block 35 upward. When the moving block 35 moves upward, it will drive the connecting column 15 upward. If the pipe being connected is a 100mm diameter oil pipe, the connecting column 15 will abut against the bottom of the outermost second mating ring 13 and move. If the pipe is a 120mm diameter oil pipe, it will drive both the outermost and middle second mating rings 13 upward. If the oil pipe has a diameter of 140mm, then all three second mating rings 13 move upward together. When the second mating rings 13 move upward, they will drive the air plug 21 to move upward. The gas inside the cylinder 20 will enter the first hollow circular plate 14, and then enter the connecting pipe 34 and the second hollow circular plate 25 through the first hollow circular plate 14. Then, it will enter the hollow cleaning ball through the second hollow circular plate 25 and the air needle 32. The hollow cleaning ball will expand, and the abutment strip 30 will lift the hollow cleaning ball to prevent it from falling.

[0050] Note that when inflating oil pipes with diameters of 100mm and 120mm, a small amount of gas will enter the connected component when the gas inside the cylinder 20 passes through the aforementioned components and enters the hollow cleaning ball. This component itself contains gas and has a small space, so the amount of gas inside can be ignored. However, when inflating the hollow cleaning ball when the two types of oil pipes are connected, some gas will enter the other cylinders 20 that have not moved. Therefore, when the other second mating rings 13 move, the air valve inside the cylinder 20 corresponding to the upper end of the unmoved second mating rings 13 will be automatically closed by the control terminal to prevent gas from mixing in and affecting the expansion coefficient of the hollow cleaning ball.

[0051] Furthermore, when the moving block 35 moves upward, it releases the pull rope 28. At this time, the stored spring 26 releases its stored force and extends downward to reset, driving the hollow air ring 27 to move downward. The hollow air ring 27 will drive the hollow cleaning ball into the delivery tube 9 through the connecting ring 29. When the outer wall of the mating strip 31 abuts against the outer wall of the first mating ring 23, it means that the air plug 21 has moved to the top in the inner wall of the cylinder 20 and cannot move. At this time, all the mating strips 31 will rotate downward, showing an open trend. At this time, the hollow cleaning ball will fall into the docking main tube 5 due to gravity.

[0052] At this time, the two electric telescopic arms 11 are activated to drive the connecting bar 12 and the connecting steel bar 33 to reset and move. The connecting steel bar 33 drives the moving block 35 to reset and move downward. The moving block 35 drives the connecting column 15 to move downward. Since the second mating ring 13 loses the contact of the connecting column 15, the second mating ring 13 will reset downward due to gravity. At the same time, when the moving block 35 resets, the moving block 35 will pull the pull rope 28. The pull rope 28 will pull the hollow air ring 27 upward. When the hollow air ring 27 moves upward, it will compress and store force in the energy storage spring 26. When the mating bar 31 disengages from the contact with the outer wall of the first mating ring 23, the reset torsion spring will drive all the mating bars 31 and the contact bar 30 to reset.

[0053] When the hollow cleaning ball falls into the docking main pipe 5, the valve inside the delivery pipe 9 is closed. When the oil flows through the docking main pipe 5, the oil will move the hollow cleaning ball to the end of another oil pipe. When the outer wall of the hollow cleaning ball comes into contact with the corresponding oil pipe end, the oil will squeeze the hollow cleaning ball into the corresponding oil pipe, causing the hollow cleaning ball to move and clean the inner wall of the oil pipe.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A self-cleaning pipe ball launcher, comprising a connecting main pipe (5), characterized in that, Two docking auxiliary pipes (3) are fixedly connected to the outer wall of the docking main pipe (5). The docking auxiliary pipes (3) are connected to the oil pipe through a connector. The upper end of the docking main pipe (5) is also fixedly connected to a delivery pipe (9). A valve is installed inside the delivery pipe (9). An installation bracket (4) is fixedly connected between the delivery pipe (9) and the outer wall of the docking main pipe (5). A detection mechanism (101) is fixedly installed between the outer wall of the installation bracket (4) and each docking auxiliary pipe (3). An inflation mechanism (201) is fixedly installed at the upper end of the mounting bracket (4), and a delivery mechanism (301) for delivering hollow cleaning balls is fixedly installed at the upper end of the delivery pipe (9). When the docking sub-pipe (3) docks with the outer wall of the oil pipe, the detection mechanism (101) can detect the diameter of the oil pipe and trigger the inflation mechanism (201) to quantitatively inflate the hollow cleaning ball, so that the hollow cleaning ball can better abut against and clean the inner wall of the oil pipe. Then the delivery mechanism (301) delivers the hollow cleaning ball, so that the hollow cleaning ball falls into the inside of the docking main pipe (5). With the push of the oil, the hollow cleaning ball is squeezed towards the docking oil pipe. The detection mechanism (101) includes a swing arm (6), which is rotatably connected to the upper end of the docking sub-tube (3). The end of the swing arm (6) away from the delivery tube (9) is welded and fixed with an abutment block (7). The upper end of the mounting bracket (4) is also slidably connected with two abutment pieces (10). The end of each swing arm (6) away from the abutment block (7) abuts against the outer wall of a nearby abutment piece (10). The outer wall of each abutment piece (10) is fixedly connected with an elastic piece (17). The upper end of the mounting bracket (4) is fixedly connected to two abutment plates (18), and the outer wall of each abutment plate (18) abuts against the outer wall of a nearby elastic piece (17). The upper end of the mounting bracket (4) is also fixedly connected to two connecting plates (16), and each connecting plate (16) is slidably connected to a moving block (35) at one end near the delivery tube (9). The moving block (35) is fixedly connected to a connecting column (15) at one end away from the connecting plate (16). The inflation mechanism (201) includes two electric telescopic arms (11), the bottom of each electric telescopic arm (11) is fixedly connected to the outer wall of the mounting bracket (4), and the output end of each electric telescopic arm (11) is fixedly connected to a connecting strip (12). Two connecting steel bars (33) are fixedly connected between the two connecting bars (12), and the outer wall of each connecting steel bar (33) is fixedly connected to the outer wall of a nearby moving block (35). The outer wall of the delivery tube (9) is fitted with three second mating rings (13), which are nested together. The bottom of each second mating ring (13) is fixedly connected with two abutting blocks (22). The bottom of each abutment block (22) abuts against the upper end of the mounting bracket (4), and the upper end of the connecting column (15) abuts against the bottom of a nearby abutment block (22); Five air plugs (21) are fixedly connected to the upper end of each of the second mating rings (13). The upper end of the delivery tube (9) is also fixedly connected to a first hollow circular plate (14). Fifteen cylinders (20) are fixedly connected to the bottom of the first hollow circular plate (14). An air valve is installed between each cylinder (20) and the first hollow circular plate (14). The outer wall of each air plug (21) is slidably connected to the inner wall of a nearby cylinder (20).

2. The self-cleaning pipe ball launcher according to claim 1, characterized in that, The dispensing mechanism (301) includes a second hollow circular plate (25), the bottom of the second hollow circular plate (25) is fixedly connected to the first hollow circular plate (14), the bottom of the second hollow circular plate (25) is fixedly connected to a hollow air ring (27) by a storage spring (26), the hollow air ring (27) is fixedly connected to the bottom of the second hollow circular plate (25), the bottom of the hollow air ring (27) is fixedly connected to an air needle (32), and the bottom of the hollow air ring (27) is also fixedly connected to a connecting ring (29).

3. A self-cleaning pipe ball launcher according to claim 2, characterized in that, The outer wall of the connecting ring (29) is rotatably connected to multiple mating strips (31) with reset function. All mating strips (31) are fixedly connected to an abutment strip (30) at opposite ends. The inner wall of the delivery tube (9) is fixedly connected to a first mating ring (23).

4. A self-cleaning pipe ball launcher according to claim 3, characterized in that, The movable block (35) and the hollow air ring (27) are fixedly connected by a pull rope (28).

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