Pipeline inner wall rust removal device suitable for different pipe diameters

Abstract

The invention discloses an inner wall rust removal device suitable for pipelines with different pipe diameters. The inner wall rust removal device comprises a shell; the axis assembly is arranged on one side of the shell; the supporting assembly is arranged on the radial outer side of the axis assembly, and the supporting assembly is connected with the axis assembly through a reducing assembly; the polishing assembly is arranged at the end of the axis assembly; the reducing assembly drives the supporting assembly to expand outwards and support the inner wall of the pipeline, and the polishing assembly works to remove rust on the inner wall of the pipeline; and through the reducing assembly and the connecting assembly, when rust removal is carried out on pipelines with different pipe diameters, the inner walls of the pipelines extrude the polishing piece, the device adapts to the inner diameters of the pipelines with different pipe diameters through the elastic force of a tension spring, and the universality of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline rust removal, in particular to a device for removing rust from the inner wall of pipelines suitable for different diameters. Background Art

[0002] The oil pipeline inner wall rust removal device is a mechanical equipment specially used to remove rust, dirt and other attachments from the inner wall of the oil pipeline. Its main function is to restore the smoothness and corrosion resistance of the inner wall of the pipeline, ensure the safe operation of the pipeline, extend its service life, and ensure the efficiency and quality of oil transportation. It includes a frame, rust removal accessories and a power source, and uses a wire brush or grinding ring to remove rust from the inner wall of the pipeline.

[0003] However, existing oil pipeline inner wall rust removal devices are usually fixed and cannot be adjusted. When performing the initial rust removal on the pipeline opening, they cannot be adjusted according to the size of the pipe diameter, and have low versatility. In addition, during the rust removal, the grinding debris cannot be collected, and these debris can easily enter the interior of the device, reducing the service life of the equipment.

[0004] In summary, how to realize the rust removal device for the inner wall of pipes with different diameters has become an urgent problem that researchers in this field need to solve. Summary of the Invention

[0005] The object of the present invention is to provide a device for removing rust from the inner wall of a pipeline suitable for different diameters, so as to solve the problem that the existing device for removing rust from the inner wall of an oil pipeline proposed in the above-mentioned background art is usually fixed and cannot be adjusted. When performing the initial rust removal on the pipeline opening, it cannot be adjusted according to the size of the pipe diameter, has low versatility, and cannot collect grinding debris during rust removal. Such debris can easily enter the interior of the device, thereby reducing the service life of the equipment.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The present invention is a rust removal device for the inner wall of pipelines with different diameters, comprising: an outer shell; an axis component, which is arranged on one side of the outer shell; a support component, which is arranged on the radial outside of the axis component and is connected to the axis component via a reducing component; and a grinding component, which is arranged at the end of the axis component; the reducing component drives the support component to expand outward and support it on the inner wall of the pipeline, and the grinding component works to remove rust from the inner wall of the pipeline.

[0008] Furthermore, the core shaft assembly includes: a central shaft, which is provided with a locking thread at one end close to the outer shell; a fixed block, which is fixed on the central shaft and away from the outer shell; a sliding block, which is slidably provided on the central shaft and close to the outer shell; a tension spring, which is sleeved on the central shaft, one end of which is connected to the fixed block, and the other end is connected to the sliding block; a rotating shell, which is connected to the end of the sliding block close to the outer shell through a rotating bearing; a threaded through, one end of which is connected to the rotating shell, and the inner wall of which is provided with an internal thread that cooperates with the locking thread.

[0009] Furthermore, an electric telescopic rod is provided between the end of the central axis and the shell.

[0010] Furthermore, the variable diameter assembly includes: a first connecting rod and a second connecting rod hingedly arranged in the middle and cross-arranged; a mounting plate, a rotating seat and a sliding frame are respectively provided at both ends of its bottom, wherein one end of the second connecting rod is slidably set on the sliding frame, and the other end is hinged to the first rotating block, one end of the first connecting rod is hinged to the rotating seat, and the other end is hinged to the second rotating block; the second rotating block is connected to the fixed block, and the first rotating block is connected to the sliding block.

[0011] Furthermore, the support assembly includes: a support plate, which is fixed to the upper surface of the mounting plate and has a plurality of balls arranged at intervals thereon.

[0012] Furthermore, the grinding assembly includes: a mounting table, which is fixed to one end of the central axis away from the outer shell; an output motor, which is arranged on the mounting table; a fixed block, which is connected to the output end of the output motor; a plurality of fixed seats, which are arranged on the outer wall of the fixed block around the center line of the fixed block; a rotating mounting block, which is installed on the fixed seat, and its axis is parallel to the center line of the fixed block; a wear-resistant rubber strip, one end of which is connected to the rotating mounting block, and grinding blocks are provided on both sides of the strip.

[0013] Furthermore, a dust suction and exhaust assembly is provided on the outer shell; the dust suction and exhaust assembly includes: a plurality of dust suction ports located on the same side of the axis assembly and opened on the outer shell; one end of the connecting pipe is connected to the dust suction port, and the other end extends to the position close to the grinding assembly and is connected to a bell mouth; an exhaust pipe is provided on the other side of the outer shell and extends outward, a filter is provided at the connection between the exhaust pipe and the outer shell, a fixing plate is provided in the exhaust pipe, the exhaust motor is fixed on the fixing plate, and an exhaust fan is connected to the output end thereof.

[0014] The beneficial effects of the present invention are as follows: the present invention is a device for removing rust from the inner wall of pipes of different diameters. Through the variable diameter component and the axial component, when removing rust from pipes of different diameters, the grinding piece is squeezed through the inner wall of the pipe, and the elastic force of the tension spring adapts to different inner diameters of the pipe, thereby improving the versatility of the device; through the cooperation of the dust suction and exhaust component, the debris generated during grinding is collected to prevent the debris from entering the interior of important components and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] Figure 1 This is a front perspective structural diagram of the pipeline inner wall rust removal device of the present invention;

[0017] Figure 2 This is a back perspective structural diagram of the pipeline inner wall rust removal device of the present invention;

[0018] Figure 3 This is a front view of the pipeline inner wall rust removal device of the present invention;

[0019] Figure 4 This is a diagram of the polishing assembly of the pipeline inner wall rust removal device of the present invention;

[0020] Figure 5 This is a diagram of the connection components of the pipeline inner wall rust removal device of the present invention;

[0021] Figure 6 This is a diagram of a reducing assembly of the pipeline inner wall rust removal device of the present invention;

[0022] Figure 7 A partial cross-sectional view of the pipeline inner wall rust removal device of the present invention;

[0023] Figure 8 This is a diagram of the exhaust assembly of the pipeline inner wall rust removal device of the present invention.

[0024] In the figure: 1. Shell; 2. Handle; 3. Door; 4. Control panel; 5. Connecting pipe; 6. Dust suction port; 7. Speaker; 8. Filter; 9. Exhaust pipe; 10. Fixing plate; 11. Exhaust motor; 12. Exhaust fan; 13. Center shaft; 14. Locking thread; 15. Sliding block; 16. Rotating bearing; 17. Rotating shell; 18. Threaded barrel; 19. Fixing block; 20. Tension spring; 21. First rotating block; 22. Second rotating block; 23. Slide rack; 24. Rotating seat; 25. Mounting plate; 26. Electric telescopic rod; 27. Ball bearing; 28. Output motor; 29. ​​Fixing block; 30. Fixing seat; 31. Mounting platform; 32. Sliding rod; 33. First connecting rod; 34. Second connecting rod; 35. Rotating mounting block; 36. Grinding block; 37. Wear-resistant rubber strip. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1 、 2 The present invention provides a rust removal device for the inner wall of pipes with different diameters, comprising a shell 1, a handle 2 fixedly mounted on the top of the shell 1, a door 3 hingedly mounted on the front of the shell 1, a dust suction and exhaust assembly connected to the interior of the shell 1, an axis assembly fixedly mounted on the left side of the shell 1, a reducing assembly slidably connected to the outer wall of the axis assembly, a support assembly fixedly mounted on the top of the outer wall of the reducing assembly, and a polishing assembly for removing rust from the inner wall fixedly mounted on the left end of the axis assembly.

[0028] See also Figure 1 A control panel 4 is fixedly installed on one of the corners of the front of the shell 1. The surface of the control panel 4 is sequentially installed with a dust suction switch and a polishing switch. The control panel 4 can centrally control the device. The dust suction switch can be used to control the output motor 28 to work, the dust suction switch can be used to control the exhaust motor 11 to work, and the telescopic switch can be used to drive the electric telescopic rod 26 to work.

[0029] See also Figure 1 、 Figure 7 The axis assembly includes a central axis 13, one end of the central axis 13 is fixedly mounted with an electric telescopic rod 26, the outer side of one end of the central axis 13 is provided with a locking thread 14, the electric telescopic rod 26 is fixedly mounted on one side of the housing 1, the electric telescopic rod 26 is electrically connected to the external power supply through the telescopic switch, and the electric telescopic rod 26 is started to drive the central axis 13 at the output end to move axially. When the central axis 13 is extended or retracted, the mounting platform 31 fixed at one end drives the wear-resistant rubber strip 37 driven by the output motor 28 to rotate to extend or retract, thereby grinding the inner wall (see Figure 4 ).

[0030] See also Figure 6 、 Figure 7 The axis assembly also includes a sliding block 15, one end of the sliding block 15 is fixedly mounted with a rotating bearing 16, the outside of the rotating bearing 16 is fixedly mounted with a rotating shell 17, one side of the rotating shell 17 is fixedly mounted with a threaded cylinder 18, the right end of the sliding block 15 is connected to the rotating shell 17 through the rotating bearing 16, and a fixed block 19 is fixedly fixed to the left side of the central axis. A tension spring 20 is fixedly mounted between the sliding block 15 and the fixed block 19, and the tension spring 20 is sleeved on the central axis 13;

[0031] See also Figure 3 、 5 The reducing assembly includes multiple first rotating blocks 21 and multiple second rotating blocks 22. The multiple first rotating blocks 21 are equidistantly installed at one end of the sliding block 15, and the multiple second rotating blocks 22 are equidistantly fixed on the fixed block 19. The external rotation of the first rotating block 21 is equipped with a second connecting rod 34, and the external rotation of the second rotating block 22 is equipped with a first connecting rod 33.

[0032] Multiple first connecting rods 33 are respectively rotatably installed in the middle part of multiple second connecting rods 34, one end of the first connecting rod 33 is rotatably installed with a rotating seat 24, and one end of the second connecting rod 34 is fixedly installed with a sliding rod 32; multiple mounting plates 25 are respectively fixedly installed on the top of the multiple rotating seats 24, one end of the bottom of the mounting plate 25 is fixedly installed with a slide frame 23, and the multiple slide frames 23 are respectively slidably connected to the multiple sliding rods 32, and a support assembly is installed on the top of the mounting plate 25, and the support assembly includes a support plate connected to the mounting plate 25, and multiple ball bearings 27 are equidistantly arranged on the support plate. The inner wall of the pipe is supported by the support plate and the multiple ball bearings 27 to avoid displacement of the grinding position.

[0033] See also Figure 4 The grinding assembly includes a mounting platform 31, which is fixedly mounted on one end of the central axis 13. An output motor 28 is fixedly mounted on the outside of the mounting platform 31, and a fixed block 29 is fixedly mounted on the output end of the output motor 28. Three fixed seats 30 are fixedly mounted equidistantly on the outside of the fixed block 29. Two rotating mounting blocks 35 are rotatably mounted inside the three fixed seats 30. A wear-resistant rubber strip 37 is fixedly mounted inside the rotating mounting seat. Multiple grinding blocks 36 are provided on both sides of the wear-resistant rubber strip 37. The output motor 28 is electrically connected to the external power supply through a grinding switch. The grinding block 36 is made of hard-grained corundum to increase friction during grinding.

[0034] See also Figure 8 The dust collection and exhaust assembly includes a filter 8 and four dust collection ports 6. The filter 8 is fixedly installed on the left side of the interior of the housing 1. The four dust collection ports 6 are respectively installed at the four corners on the right side of the housing 1. One end of the dust collection port 6 extends to the interior of the housing 1. Figure 1 One end of the dust suction port 6 is fixedly connected to the connecting pipe 5, and one end of the connecting pipe 5 is fixedly installed with a trumpet tube 7, which is fixedly installed at the mounting platform 31;

[0035] See also Figure 8The dust suction and exhaust component also includes an exhaust pipe 9, one end of the exhaust pipe 9 extends to the interior of the shell 1, a fixed plate 10 is fixedly installed inside the exhaust pipe 9, and an exhaust motor 11 is fixedly installed on one side of the fixed plate 10. An exhaust fan 12 is fixedly installed on the output end of the exhaust motor 11, and the exhaust motor 11 is electrically connected to the external power supply through the dust suction switch. When grinding, the exhaust motor 11 is started to drive the exhaust fan 12 at the output end to rotate, and the air inside the dust collection area is discharged. Due to the negative pressure, the debris generated during grinding will follow the four trumpets 7 and the connecting pipe 5 into the dust suction port 6, and then enter the interior of the dust collection area.

[0036] When the embodiment of the present application is in use: the grinding end of the device is placed on the pipe opening that needs to be polished, and then the threaded barrel 18 is rotated to release the threaded connection between it and the locking thread 14, and the device is opened. Because the threaded barrel 18 is no longer fixed, the tension spring 20 is released from the force and pulls the sliding block 15 to slide along the central axis 13 toward the fixed block 19. When the sliding block 15 slides, it drives the first rotating block 21 on the top to move. When the first rotating block 21 moves, it drives the second connecting rod 34 installed externally to rotate along the middle part of the first connecting rod 33, so that the sliding rod 32 fixedly installed at one end of the second connecting rod 34 slides along the slide bracket 23. At this time, the sliding block 15 and the fixed block 19 The spacing between the mounting plates 25 is reduced, driving multiple mounting plates 25 to open. When three mounting plates 25 are opened, until the balls 27 on the support plate fit and squeeze the inner wall of the pipe, the tension spring 20 is again stressed to stop pulling the sliding block 15, so that the device is always located in the middle of the pipe. Then the device is connected to the power supply, and then the output motor 28 is started through the grinding switch on the control panel 4 to drive the fixed block 29 at the output end to rotate. When the fixed block 29 rotates, the three fixing seats 30 fixed externally drive the rotating mounting block 35 to rotate, thereby driving the wear-resistant rubber strip 37 fixed by screws on the rotating mounting block 35 to rotate, driving the wear-resistant rubber strip 37 and the wear-resistant rubber strip 37 on the wear-resistant rubber strip 37 to rotate. The grinding block 36 is placed to grind the inner wall by centrifugal force, and then the electric telescopic rod 26 is started by the telescopic switch on the control panel 4, so that the rotating wear-resistant rubber strip 37 performs axial movement to remove rust from the inner wall of the pipe. It should be noted that when the electric telescopic rod 26 is started, the diameter reducing assembly, the axis assembly, the support assembly, and the grinding assembly will perform axial movement synchronously. During grinding, the exhaust motor 11 is started by the dust suction switch on the control panel 4, which drives the exhaust fan 12 at the output end to rotate and discharge the air inside the dust collection area. Due to the negative pressure, the debris generated during grinding will enter the dust suction port 6 along the four trumpet tubes 7 and the connecting pipe 5, and then enter the interior of the dust collection area. After the rust removal is completed, it is closed. The exhaust motor 11, the electric telescopic rod 26 and the output motor 28, then pull the threaded barrel 18 to drive the sliding block 15 to slide along the central axis 13, and drive the middle part of the second connecting rod 34 to rotate along the middle part of the first connecting rod 33 through the first rotating block 21, so that the second connecting rod 34 slides inside the slide rack 23 through the sliding rod 32 fixed at one end, driving multiple mounting plates 25 to shrink radially toward the middle, and then threading the threaded barrel 18 with the locking thread 14. At this time, the tension spring 20 is subjected to tension again, so that the device is closed for the next use, and then the door 3 is released from the outer shell 1, and the door 3 is opened to process the debris collected in the dust collection area inside the outer shell 1.

[0037] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A rust removal device for the inner wall of pipes of different diameters, characterized in that: include: shell; an axis assembly, which is arranged on one side of the housing; A support assembly, which is arranged radially outside the shaft assembly and is connected to the shaft assembly via a reducing assembly; A grinding assembly, which is arranged at the end of the shaft assembly; The diameter-changing component drives the supporting component to expand outward and support the inner wall of the pipe, and the grinding component works to remove rust from the inner wall of the pipe.

2. The rust removal device for the inner wall of pipelines of different diameters according to claim 1 is characterized in that: The core shaft assembly includes: A central shaft, having a locking thread provided at one end thereof close to the housing; a fixed block, which is fixedly arranged on the central axis and away from the housing; a sliding block, which is slidably disposed on the central axis and close to the housing; a tension spring, which is sleeved on the central shaft, with one end connected to the fixed block and the other end connected to the sliding block; a rotating shell connected to an end of the sliding block close to the outer shell through a rotating bearing; The threaded through hole has one end connected to the rotating shell and an inner wall thereof is provided with an internal thread matched with the locking thread.

3. The rust removal device for the inner wall of pipelines of different diameters according to claim 2 is characterized in that: An electric telescopic rod is provided between the end of the central axis and the shell.

4. The rust removal device for the inner wall of pipelines of different diameters according to claim 2 is characterized in that: The reducing assembly comprises: A first connecting rod and a second connecting rod are hingedly arranged in the middle and cross-arranged; The mounting plate has a rotating seat and a sliding frame at both ends of its bottom, wherein one end of the second connecting rod is slidably arranged on the sliding frame, and the other end is hinged to the first rotating block, and one end of the first connecting rod is hinged to the rotating seat, and the other end is hinged to the second rotating block; The second rotating block is connected to the fixed block, and the first rotating block is connected to the sliding block.

5. The rust removal device for inner walls of pipes of different diameters according to claim 4 is characterized in that: The support assembly comprises: The support plate is fixed on the upper surface of the mounting plate and has a plurality of balls arranged at intervals thereon.

6. The rust removal device for inner walls of pipes of different diameters according to claim 2, characterized in that: The grinding assembly comprises: A mounting platform fixed to an end of the central axis away from the housing; an output motor, which is arranged on the mounting platform; a fixed block connected to the output end of the output motor; A plurality of fixing seats are arranged on the outer wall of the fixing block around the center line of the fixing block; a rotating mounting block, which is mounted on the fixing seat, with its axis parallel to the center line of the fixing block; One end of the wear-resistant rubber strip is connected to the rotating mounting block, and polishing blocks are provided on both the front and back sides of the wear-resistant rubber strip.

7. The rust removal device for inner walls of pipes of different diameters according to claim 1 is characterized in that: The housing is provided with a dust collection and exhaust assembly; the dust collection and exhaust assembly comprises: Located on the same side of the axis component, multiple dust suction ports are opened on the outer shell; one end of the connecting pipe is connected to the dust suction port, and the other end extends to the vicinity of the grinding component and is connected to a bell mouth; an exhaust pipe is provided on the other side of the outer shell and extends outward, a filter is provided at the connection between the exhaust pipe and the outer shell, a fixing plate is provided in the exhaust pipe, the exhaust motor is fixed on the fixing plate, and the output end thereof is connected to an exhaust fan.

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