Splicing pipe internal rust removal device for water conservancy project

Abstract

The splicing pipe internal rust removal device for the water conservancy project comprises a rotating assembly, a first telescopic rod suitable for pipelines with different diameters is arranged at one end of the rotating assembly, a grinding wheel is rotationally connected to the first telescopic rod, and an adjusting assembly is arranged at the bottom end of the rotating assembly; one end of the adjusting assembly is provided with a second telescopic rod adapting to pipelines with different diameters, one end of the second telescopic rod is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a moving wheel abutting against the inner wall of the pipeline. Moving wheels are driven by a second motor, the whole device moves upwards at a constant speed in the pipeline, the stability and the rule of the movement track of the device are guaranteed in the process, the polishing wheel can evenly cover all areas of the inner wall of the pipeline, and based on the automatic operation mode, the device does not need to frequently and manually adjust the polishing position, and the polishing efficiency is improved. And the device can automatically adapt to splicing pipes with different lengths, so that the labor intensity of operators is reduced, and manual operation errors are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rust removal devices, in particular to an internal rust removal device for a spliced ​​pipe used in a water conservancy project. Background Art

[0002] Spliced ​​pipes for water conservancy projects are important facilities used to transport, distribute and discharge water and other fluids in water conservancy projects. They are usually composed of multiple sections of pipes combined through specific connection methods. The connection methods of spliced ​​pipes include welding connection, clamp connection, threaded connection and socket connection, etc. Spliced ​​pipes for water conservancy projects are widely used in irrigation projects, water supply projects, drainage projects and water transfer projects across rivers, lakes and seas. They are key components for achieving reasonable allocation and utilization of water resources and ensuring the smooth operation of water conservancy projects. Due to the different factory production times of the pipes, the pipes that were produced earlier continue to oxidize in the air, and the pipes that have just been produced may also rust due to poor storage conditions in the early stage. During storage and transportation, the conditions The quality of the pipes is even more uneven. Some pipes are placed in the open air in a place full of debris, and are exposed to wind, rain and dust for a long time. Some are during transportation. Due to inadequate packaging and protection, and the significant difference in climate humidity in different places, there is generally varying degrees of rust on the inner and outer walls of the pipes. Good sealing and stability are required at the connection parts of the spliced ​​pipes to prevent problems such as leakage. If there is rust on the inner wall, the connection surface will be uneven and not smooth, affecting the sealing effect and causing gaps to easily appear at the connection, thereby reducing the sealing and reliability of the entire pipeline system, increasing the risk of leakage, and affecting the normal operation of the water conservancy project. Therefore, it is generally necessary to remove rust from the inner wall of the pipe before use.

[0003] The Chinese patent with the publication number CN114290209B discloses an internal rust removal device for a spliced ​​pipe for water conservancy projects, which mainly provides a device for internal rust removal of a spliced ​​pipe for water conservancy projects that is simple to operate, does not require too much manpower, reduces rust removal costs, and improves efficiency. The device includes: a placement plate, a first mounting plate, a rotating shaft, a rotating barrel, a grinding roller, a clamping mechanism, and a driving mechanism. A first mounting plate is provided on one side of the top of the placement plate, a rotating shaft is rotatably provided on the upper part of the first mounting plate, a rotating barrel is provided on the rotating shaft, and a plurality of grinding rollers are provided on the outer side of the rotating barrel. A clamping mechanism is provided on the other side of the top of the placement plate, and a driving mechanism is provided on the first mounting plate. By setting the clamping mechanism and the driving mechanism, the spliced ​​pipe is clamped and limited, driving the grinding roller to rotate, and the spliced ​​pipe moves to the right to drive the inner wall to contact the grinding roller to complete the rust removal and realize the basic function.

[0004] However, the above-mentioned prior art has the following shortcomings: since the spliced ​​pipe is made up of multiple sections of pipes, the length of each section of the pipe may be different, and during the rust removal operation, a grinding roller is placed in each section of the spliced ​​pipe, and the length of the grinding roller determines the grinding area. When the pipes are of different lengths, the grinding roller cannot adapt to all pipes, resulting in the need to manually adjust the position of the grinding roller during rust removal, thereby affecting the efficiency and quality of the rust removal work. Frequent manual adjustments not only consume a lot of manpower and time, but are also prone to incomplete rust removal on the inner wall of some pipes due to human operating errors, and the residual rust continues to cause corrosion hazards to the pipe, increasing subsequent maintenance costs and risks. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that a spliced ​​pipe is formed by splicing multiple pipe sections, and the length of each pipe section may be different. During the rust removal operation, a grinding roller is placed in each spliced ​​pipe section. The length of the grinding roller determines the grinding area. When the pipe lengths are different, the grinding roller cannot adapt to all pipes, resulting in the need to manually adjust the position of the grinding roller during rust removal, thereby affecting the efficiency and quality of the rust removal work. Frequent manual adjustments not only consume a lot of manpower and time, but are also prone to human operating errors, resulting in incomplete rust removal on the inner wall of some pipes, and residual rust continues to cause corrosion hazards to the pipe, increasing subsequent maintenance costs and risks. A device for removing rust inside a spliced ​​pipe for a water conservancy project is provided.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for removing rust from the inside of a spliced ​​pipe for a water conservancy project, comprising: a rotating assembly, a telescopic rod 1 adapted to pipes of different diameters is arranged at one end of the rotating assembly, a grinding wheel is rotatably connected to the telescopic rod 1, an adjusting assembly is arranged at the bottom end of the rotating assembly, a telescopic rod 2 adapted to pipes of different diameters is arranged at one end of the adjusting assembly, a motor 2 is fixedly connected to one end of the telescopic rod 2, a moving wheel abutting against the inner wall of the pipe is fixedly connected to the output end of the motor 2, a coordination assembly for making the telescopic rod 1 and the telescopic rod 2 move synchronously is arranged on the outer side of the telescopic rod 2, and a synchronization assembly is arranged at one end of the coordination assembly for aligning the telescopic rod 1 and the telescopic rod 2 after grinding is completed, thereby restoring the coordination assembly to an initial state; The adjustment assembly includes a motor 1 fixedly connected to the adjustment assembly, the outer side of the motor 1 is rotatably connected to a mounting shell, a side end of the mounting shell is fixedly connected to a gear 2, and one end of the gear 2 passes through the mounting shell and is fixedly connected to the telescopic rod 1, the output end of the motor 1 is fixedly connected to a gear 1, and the gear 1 is meshed with the gear 2; Among them, when the grinding wheel and the moving wheel are placed in the spliced ​​pipe, under the action of the coordination component, the telescopic rod 1 and the telescopic rod 2 move synchronously, so that the grinding wheel and the moving wheel are in contact with the inner wall of the pipe at the same time, and then the motor 1 and the motor 2 are started, and the motor 2 drives the moving wheel to rotate, so that the entire device moves up at a uniform speed in the pipe. During the upward movement, the motor 1 drives the gear 1 to rotate, thereby driving the gear 2 to rotate, so that the mounting shell rotates, and during the rotation, the gear 2 drives the telescopic rod 1, so that the grinding wheel rotates around the inner wall of the pipe to grind and remove rust from the inner wall.

[0007] As a further solution of the present invention: the adjustment component includes a fixed shell fixedly connected to a bottom end of the motor, the top end of the fixed shell is rotatably connected to a mounting column, the outer side of the mounting column is fixedly connected to a pull rope, one end of the pull rope passes through the fixed shell and is fixedly connected to the second inner wall of the telescopic rod.

[0008] As a further solution of the present invention: an installation groove is formed through the inner wall of the fixed shell, a guide wheel is rotatably connected in the installation groove, and one end of the pull rope passes through the installation groove and abuts against the guide wheel.

[0009] As a further solution of the present invention: a connecting groove is opened on the inner wall of the fixed shell, a push plate is slidably connected in the connecting groove, and the push plate is slidably plugged into the mounting column, and a clamping plate is fixedly connected to the outer side of the mounting column, and the clamping plate is slidably plugged into the push plate.

[0010] As a further solution of the present invention: the top end of the push plate is fixedly connected to a limiting column, the limiting column is slidably plugged into the top end of the connecting groove, and the bottom end of the push plate is fixedly connected to a handle.

[0011] As a further solution of the present invention: a fixing groove is opened on the inner wall of the fixing shell, a limiting block is slidably inserted in the fixing groove, one end of the limiting block is fixedly connected to a spring 1, and one end of the spring 1 is fixedly connected to the inner wall of the fixing groove.

[0012] As a further solution of the present invention: the coordination component includes a coordination plate 1 fixedly connected to the top end of the second telescopic rod, the bottom end of the first telescopic rod is fixedly connected to the coordination plate 2, one end of the coordination plate 2 is embedded with a ball, the ball is rotatably connected to the coordination plate 2, and one end of the ball is in contact with the coordination plate 1.

[0013] As a further solution of the present invention: the synchronization component includes a mounting plate fixedly connected to the coordination plate one, one end of the mounting plate is penetrated by a plug column, one end of the plug column penetrates the mounting plate and is fixedly connected to a stopper, the other end of the plug column is fixedly connected to a roller, a spring two is sleeved on the outer side of the plug column, one end of the spring two abuts against the roller, and the other end abuts against the mounting plate, a through groove is opened on the top of the stopper, and the through groove is adapted to the coordination plate two.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the moving wheel is driven by the second motor, and the device as a whole realizes uniform upward movement in the pipeline. This process not only ensures the stability and regularity of the movement trajectory of the device, but also avoids the problem of excessive or insufficient grinding caused by uneven speed and route deviation in traditional manual operation, and allows the grinding wheel to evenly cover various areas of the inner wall of the pipeline. At the same time, the first motor drives the grinding wheel to rotate around the inner wall of the pipeline, so that the grinding wheel performs all-round rust removal on the inner wall of the pipeline in a spiral trajectory, making full use of the working area of ​​the grinding wheel. Compared with the traditional local and repeated grinding method, it is more scientific and efficient. Based on such an automatic operation mode, the device does not need to frequently adjust the grinding position manually, and can automatically adapt to splicing pipes of different lengths, which not only reduces the labor intensity of the operator, but also reduces the human operation error; 2. The present invention can adjust the length of the telescopic rod 2 and the telescopic rod 1 through the adjustment component, so that the device can adapt to the splicing pipes of different diameters, thereby enhancing the versatility and applicability of the device. Before use, the telescopic rod 2 and the telescopic rod 1 can be retracted to the shortest state, which is convenient for placing the entire device into the pipeline, reducing the difficulty of operation. The pull rope, the mounting column, the push plate, the limit block and other multiple components cooperate with each other, and the elasticity of the spring and the friction and abutment between the components are used to limit and adjust. The structure is stable, and the telescopic state of the telescopic rod 2 can be accurately controlled, ensuring the stability and reliability of the device in different working stages; 3. In the present invention, the coordination component can make the telescopic rod 1 and the telescopic rod 2 move synchronously, whether in the contraction stage or the extension stage, it can ensure that the moving wheel and the grinding wheel are in contact with the inner wall of the pipe at the same time, further enhancing the stability of the operation of the device. The operator only needs to control the extension and retraction of the telescopic rod 2 by adjusting the component, and the coordination component can automatically realize the synchronous extension and retraction of the telescopic rod 1, without the need to adjust the telescopic rod 1 separately, which greatly simplifies the operation process of the device, reduces the difficulty and workload of the operator, and improves the work efficiency; 4. In the present invention, the position of the adjustment block in the synchronization component is adjusted so that the through groove is on the rotation trajectory of the coordination plate 2, thereby avoiding interference between the coordination plate 2 and the stopper, ensuring that the grinding wheel can rotate smoothly around the inner wall of the pipe, ensuring the continuity and stability of the rust removal operation, and improving the rust removal efficiency. After the grinding is completed, the elastic restoring force of the spring 2 can be used to automatically adjust the position of the stopper so that the through groove is moved out of the rotation trajectory of the coordination plate 2, prompting the telescopic rod 1 to abut against the stopper under inertial rotation, thereby realizing the alignment and resetting of the telescopic rod 1 and the telescopic rod 2, without the need for additional manual operation, simplifying the operation process, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of a device for removing rust from the inside of a spliced ​​pipe for a water conservancy project according to the present invention; Figure 2 It is a structural cross-sectional view of a telescopic rod in a rust removal device for an internal spliced ​​pipe for a water conservancy project according to the present invention; Figure 3 It is a schematic diagram of the internal structure of a rotating assembly in a rust removal device for an internal spliced ​​pipe for a water conservancy project according to the present invention; Figure 4 The invention relates to a device for removing rust from the inside of a pipe splicing system for a water conservancy project. Figure 3 A schematic diagram of the structure at A; Figure 5 It is a structural schematic diagram of an adjusting component in a rust removal device inside a spliced ​​pipe for a water conservancy project according to the present invention; Figure 6 The invention relates to a device for removing rust from the inside of a pipe splicing system for a water conservancy project. Figure 5 Schematic diagram of the structure at B; Figure 7 It is a bottom view of the structure of a rotating assembly in a rust removal device for an internal pipe splicing for a water conservancy project according to the present invention; Figure 8 The invention relates to a device for removing rust from the inside of a pipe splicing system for a water conservancy project. Figure 7 Schematic diagram of the structure at C; Fig. 9 It is a structural schematic diagram of the coordination components in the internal rust removal device of the spliced ​​pipe for water conservancy engineering described in the present invention; Fig.10 The invention relates to a device for removing rust from the inside of a pipe splicing system for a water conservancy project. Fig. 9 Schematic diagram of the structure at D; Fig.11 It is a structural schematic diagram of a synchronous component in a rust removal device for an internal spliced ​​pipe for a water conservancy project according to the present invention; Fig.12 The invention relates to a device for removing rust from the inside of a pipe splicing system for a water conservancy project. Fig.11 Schematic diagram of the structure at E.

[0016] In the figure: 1. Rotating component; 11. Motor 1; 12. Mounting shell; 13. Gear 1; 14. Gear 2; 2. Telescopic rod 1; 3. Grinding wheel; 4. Adjusting component; 41. Fixed shell; 42. Mounting column; 43. Pull rope; 44. Card; 45. Connecting groove; 46. Push plate; 47. Limiting column; 48. Mounting groove; 49. Guide wheel; 410. Handle; 411. Fixed groove; 412. Spring 1; 413. Limiting block; 5. Telescopic rod 2; 6. Moving wheel; 7. Motor 2; 8. Coordinating component; 81. Coordinating plate 1; 82. Coordinating plate 2; 83. Ball; 9. Synchronizing component; 91. Mounting plate; 92. Insert column; 93. Block; 94. Through groove; 95. Spring 2; 96. Roller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0019] Reference Figures 1 to 4In the embodiment of the present invention, a device for removing rust from the inside of a spliced ​​pipe for a water conservancy project comprises: a rotating assembly 1, a telescopic rod 2 adapted to pipes of different diameters is arranged at one end of the rotating assembly 1, the telescopic rod 2 is a spring telescopic rod, a spring is arranged inside the telescopic rod, three groups of telescopic rods 2 are arranged, evenly distributed on the outside of the rotating assembly 1, two groups of grinding wheels 3 are rotatably connected to each group of telescopic rods 2, the two groups of grinding wheels 3 are symmetrically distributed at both ends of the telescopic rod 2, and the group of grinding wheels 3 located at the top is a coarse grinding wheel 3, and the group of grinding wheels 3 located at the bottom is a fine grinding wheel 3, an adjusting assembly 4 is arranged at the bottom end of the rotating assembly 1, a telescopic rod 2 5 adapted to pipes of different diameters is arranged at one end of the adjusting assembly 4, the telescopic rod 2 5 is a spring telescopic rod, a spring is arranged inside the telescopic rod, and the adjusting assembly 4 can be used to adjust the diameter of the pipe. The telescopic rod 2 5 is adjusted to the shortest state. The telescopic rod 2 5 is provided with three groups, which are evenly distributed on the outside of the adjustment component 4. One end of each group of telescopic rods 2 5 is fixedly connected to a motor 2 7. The motor 2 7 is a double-output shaft motor. The two output ends of the motor 2 7 are respectively fixedly connected to a group of moving wheels 6 that abut against the inner wall of the pipeline. A coordination component 8 is provided on the outside of the telescopic rod 2 5 to make the telescopic rod 1 2 and the telescopic rod 2 5 move synchronously, so that the moving wheel 6 and the grinding wheel 3 abut against the inner wall of the pipeline synchronously. One end of the coordination component 8 is provided with a synchronization component 9 that aligns the telescopic rod 1 2 with the telescopic rod 2 5 after grinding is completed, so as to restore the coordination component 8 to the initial state, so that when the grinding wheel 3 moves out of the pipeline, the telescopic rod 1 2 and the telescopic rod 2 5 are restricted by the coordination component 8 and maintained at the same length; The adjustment component 4 includes a motor 11 fixedly connected to the adjustment component 4, the outer side of the motor 11 is rotatably connected to a mounting shell 12, the mounting shell 12 is hexagonal, the side end of the mounting shell 12 is fixedly connected to a gear 2 14, the gear 2 14 is provided with three groups, evenly distributed on the side end of the mounting shell 12, and one end of each group of gears 2 14 passes through the mounting shell 12 and is fixedly connected to a group of telescopic rods 1 2, the output end of the motor 11 is fixedly connected to a gear 13, the gear 13 and the gear 2 14 are meshed and connected, and the gear 13 and the gear 2 14 are bevel gears; Among them, when the grinding wheel 3 and the moving wheel 6 are placed in the splicing tube, under the action of the adjusting component 4 and the coordinating component 8, the telescopic rod 1 2 and the telescopic rod 2 5 are restricted to the shortest state and do not contact the inner wall of the splicing tube. Afterwards, the restriction of the adjusting component 4 on the telescopic rod 2 5 is released, so that the telescopic rod 2 5 is extended, and under the action of the coordinating component 8, the telescopic rod 1 2 is synchronously extended, so that the grinding wheel 3 and the moving wheel 6 are in contact with the inner wall of the pipe at the same time, and then the motor 1 11 and the motor 2 7 are started, and the motor 2 7 drives the moving wheel 6 to rotate, so that the entire device moves up at a uniform speed in the pipe. During the upward movement, the motor 11 drives the gear 1 13 to rotate, thereby driving the gear 2 14 to rotate, so that the mounting shell 12 rotates, and during the rotation, the gear 2 14 drives the telescopic rod 1 2, so that the grinding wheel 3 rotates around the inner wall of the pipe to grind and remove rust from the inner wall.

[0020] reference Figures 5 to 8The adjustment component 4 includes a fixed shell 41 fixedly connected to the bottom end of the motor 11, and a mounting column 42 is rotatably connected to the top of the fixed shell 41. The mounting column 42 is T-shaped, and a pull rope 43 is fixedly connected to the outside of the mounting column 42. Three groups of pull ropes 43 are provided, which are evenly distributed on the outside of the mounting column 42. One end of each group of pull ropes 43 passes through the fixed shell 41 and is fixedly connected to the inner wall of a group of telescopic rods 25. The inner wall of the fixed shell 41 is penetrated with a mounting groove 48. Three groups of mounting grooves 48 are provided, which are evenly distributed on the inner wall of the fixed shell 41. Each group of mounting grooves 48 corresponds to a group of telescopic rods 25. Two groups of guide wheels 49 are rotatably connected in each group of mounting grooves 48. The two groups of guide wheels 49 are symmetrically distributed at the upper and lower ends of the mounting grooves 48. One end of each group of pull ropes 43 passes through each group Between the two groups of guide wheels 49 of the mounting groove 48, a connecting groove 45 is provided on the inner wall of the fixed shell 41, and a push plate 46 is slidably connected in the connecting groove 45, and the push plate 46 is slidably plugged with the mounting column 42, and a clamping plate 44 is fixedly connected to the outer side of the mounting column 42, and multiple groups of clamping plates 44 are arranged, which are evenly distributed on the outer side of the mounting column 42, and the height of the clamping plate 44 is the same as the height of the connecting groove 45. The clamping plate 44 is slidably plugged with the push plate 46, and the top of the push plate 46 is fixedly connected to the limiting column 47, and multiple groups of limiting columns 47 are arranged, which are evenly distributed on the top of the push plate 46. The limiting column 47 is slidably plugged with the top of the inner side of the connecting groove 45, and a handle 410 is fixedly connected to the bottom end of the push plate 46, and a fixing groove 411 is provided on the inner wall of the fixed shell 41, and multiple groups of fixing grooves 411 are arranged, which are evenly distributed. The fixing shell 41 is arranged on the inner wall of the fixing shell 41, and a group of limit blocks 413 are slidably inserted in each group of fixing grooves 411. The limit blocks 413 are conical, and one end of each limit block 413 is fixedly connected to a group of springs 412, and one end of the springs 412 is fixedly connected to the inner wall of the fixing groove 411. The push plate 46 is rotated by the handle 410. Since the push plate 46 is slidably inserted with the mounting column 42, and the outer side of the mounting column 42 is fixed with a card plate 44 and the push plate 46 is slidably inserted, the push plate 46 drives the mounting column 42 to rotate synchronously. When the mounting column 42 rotates, the pull rope 43 on the outer side is wound around the outer surface of the mounting column 42, and the other end of the pull rope 43 is fixedly connected to the inner wall of the telescopic rod 25. As the pull rope 43 is gradually wound, the telescopic rod 25 is forced to shrink synchronously, and the spring inside it also Then the telescopic rod 2 5 contracts until it is contracted to the shortest state. When the telescopic rod 2 5 contracts, the coordination plate 1 81 at its top moves synchronously, pushing the coordination plate 2 82 at the bottom of the telescopic rod 2 to move. Under the action of the coordination component 8, the telescopic rod 2 is also contracted to the shortest state synchronously, and then the handle 410 is pushed upward to make the push plate 46 move upward in the connecting groove 45. During the movement, the push plate 46 abuts against the conical surface of the limit block 413, pushing the limit block 413 to move into the fixed groove 411, and the spring 1 412 contracts under the force. When the push plate 46 passes through the fixed groove 411, the spring 1 412 is no longer stressed and restores its original length, pushing the limit block 413 out of the fixed groove 411. The limit block 413 supports the bottom end of the push plate 46. At the same time,The limit column 47 at the top of the push plate 46 is inserted into the top of the connection groove 45. Under the friction force of the limit column 47 and the connection groove 45 and the abutment force of the limit block 413, the push plate 46 is limited to the current position. Under the restriction of the limit column 47 and the connection groove 45 and the clamping plate 44 and the push plate 46, the installation column 42 cannot rotate, and the pull rope 43 is tightened in the current state, thereby limiting the telescopic rod 2 5 from restoring its original length and keeping it in the shortest state. The telescopic rod 1 2 is also limited to the shortest state under the action of the coordination component 8.

[0021] The above scheme is adopted: by adjusting the length of the telescopic rod 2 5 and the telescopic rod 1 2, the device can adapt to splicing pipes of different diameters. When facing pipes of different specifications, it is only necessary to adjust the adjustment component 4 so that the moving wheel 6 and the grinding wheel 3 can be well abutted against the inner wall of the pipe to ensure the stable operation and effective rust removal of the device in the pipe. Before use, the telescopic rod 2 5 and the telescopic rod 1 2 can be retracted to the shortest state to facilitate the placement of the entire device into the pipe. The adjustment component 4 adopts a pull rope 43, a mounting column 42, a push plate 46, a limit block 413 and other components that cooperate with each other, and uses the elasticity of the spring and the friction and abutment force between the components to limit and adjust. The structure is stable, and the telescopic state of the telescopic rod 2 5 can be accurately controlled to ensure the stability and reliability of the device in different working stages.

[0022] Reference Figures 9 and 10The coordination component 8 includes a coordination plate 81 fixedly connected to the top of the telescopic rod 25, and the coordination plate 81 is provided with three groups, each group of coordination plates 81 is fixedly connected to a group of telescopic rods 25, and the bottom of the telescopic rod 2 is fixedly connected to a coordination plate 282, and the coordination plate 282 is provided with three groups, each group of coordination plates 282 is fixedly connected to a group of telescopic rods 2, and the coordination plate 81 and the coordination plate 282 are arc-shaped, and the corresponding surfaces of the coordination plate 282 and the coordination plate 181 are embedded with balls 83, and the balls 83 are provided with multiple groups, which are evenly distributed at one end of the coordination plate 282, and the balls 83 are rotatably connected to the coordination plate 282, and one end of the balls 83 abuts against the coordination plate 81. Since the top of the telescopic rod 25 is fixedly connected to the coordination plate 81, the coordination plate 81 moves synchronously when the telescopic rod 25 contracts, and the coordination plate 81 and the coordination plate 282 at the bottom of the telescopic rod 2 Through the abutment of the ball 83, the coordination plate 1 81 pushes the coordination plate 2 82 to move when it moves, thereby causing the telescopic rod 1 2 to shrink synchronously to the shortest state. At this time, under the joint action of the adjustment component 4 and the coordination component 8, the telescopic rod 1 2 and the telescopic rod 2 5 are both restricted in the shortest state, which is convenient for the entire device to be placed in the pipeline. During the process of the telescopic rod 2 5 becoming longer, the coordination plate 1 81 is driven to move. Since the coordination plate 1 81 and the coordination plate 2 82 are abutted by the ball 83, the movement of the coordination plate 1 81 makes the coordination plate 2 82 no longer restricted by the previous contracted state, and the spring in the telescopic rod 2 also returns to its original length, and the telescopic rod 2 becomes longer accordingly until the grinding wheel 3 abuts against the inner wall of the pipeline. In this process, the coordination component 8 ensures that the telescopic rod 1 2 and the telescopic rod 2 5 are extended synchronously, so that the moving wheel 6 and the grinding wheel 3 can abut against the inner wall of the pipeline at the same time.

[0023] The above scheme is adopted: the coordination component 8 can make the telescopic rod 1 2 and the telescopic rod 2 5 move synchronously, whether in the contraction stage or the extension stage, it can ensure that the moving wheel 6 and the grinding wheel 3 are in contact with the inner wall of the pipe at the same time. This synchronization makes the installation and operation of the device in the pipe more stable, avoids the problems of device tilting and shaking caused by the lack of synchronization between the moving wheel 6 and the grinding wheel 3, and improves the reliability and stability of the device. During operation, the operator only needs to control the extension and retraction of the telescopic rod 2 5 by adjusting the component 4, and the coordination component 8 can automatically realize the synchronous extension and retraction of the telescopic rod 1 2, without the need for additional separate adjustment of the telescopic rod 2, which greatly simplifies the operation process of the device, reduces the working difficulty and workload of the operator, and improves work efficiency.

[0024] Reference Figure 11 to Figure 12The synchronous component 9 includes a mounting plate 91 fixedly connected to the coordination plate 81. The mounting plate 91 is provided with three groups, each group of mounting plates 91 is fixedly connected to a group of coordination plates 81. One end of each group of mounting plates 91 is connected through a group of plug posts 92. One end of the plug post 92 passes through the mounting plate 91 and is fixedly connected to a stopper 93. The other end of the plug post 92 is fixedly connected to a roller 96. A spring 95 is sleeved on the outer side of the plug post 92. One end of the spring 95 abuts against the roller 96 and the other end abuts against the mounting plate 91. A through groove 94 is provided on the top of the stopper 93. The through groove 94 is arc-shaped and is adapted to the coordination plate 82. When the telescopic rod 85 becomes longer, the coordination plate 81 is driven to move, and then the synchronous component 9 moves synchronously. The roller 96 abuts against the inner wall of the pipe, and the inner wall of the pipe generates an inward squeezing force on the roller 96, so that the plug post 92 pushes the stopper 93 to move, and at the same time, the spring 85 is contracted under the force until the through groove 94 is formed. When the grinding wheel 3 is rotated and polished, the second plate 82 can pass through the groove 94 and will not interfere with the stopper 93, thereby ensuring the normal progress of the grinding operation. When the grinding is completed, the fine grinding wheel 3 located below has not yet completely moved out of the pipeline, and the roller 96 moves out of the pipeline before the fine grinding wheel 3. At this time, the spring 2 95 is no longer subjected to the squeezing force of the inner wall of the pipeline on the roller 96 and restores its original length, pushing the roller 96 to move outward, thereby driving the stopper 93 to move, so that the coordination plate 2 82 is moved out of the rotation track through the groove 94. At the same time, the operation of the motor 11 is stopped, but the telescopic rod 2 will continue to rotate under the action of inertia until the coordination plate 2 82 below the telescopic rod 2 abuts against the stopper 93, so that the telescopic rod 2 is restricted to one side of the stopper 93, so that the telescopic rod 2 and the telescopic rod 2 5 are aligned and reset, and the coordination component 8 also returns to its initial state.

[0025] The above scheme is adopted: by adjusting the position of the stopper 93, the through slot 94 is placed on the rotation track of the coordination plate 2 82, avoiding the interference between the coordination plate 2 82 and the stopper 93, ensuring that the grinding wheel 3 can smoothly rotate around the inner wall of the pipeline, ensuring the continuity and stability of the rust removal operation, and improving the rust removal efficiency. After the grinding is completed, the synchronization component 9 can use the elastic recovery force of the spring 2 95 to automatically adjust the position of the stopper 93, so that the through slot 94 moves out of the rotation track of the coordination plate 2 82, prompting the telescopic rod 1 2 to abut against the stopper 93 under inertial rotation, and realizing the alignment and reset of the telescopic rod 1 2 and the telescopic rod 2 5. This process does not require additional manual operation, simplifies the operation process of the device, and improves the work efficiency. After the telescopic rod 1 2 and the telescopic rod 2 5 are aligned and reset, the device can be taken out of the pipeline in a neat state, reducing the possibility of collision and jamming of the device with the inner wall of the pipeline during the removal process. At the same time, the reset device can be directly used for the rust removal operation of the next group of pipelines, which provides convenience for continuous operation and reduces labor intensity.

[0026] The working principle of the present invention is as follows: before use, the push plate 46 is first rotated by the handle 410, and under the action of the clamping plate 44, the push plate 46 and the mounting column 42 are rotated synchronously. When the mounting column 42 rotates, the pull rope 43 on the outside of the mounting column 42 is wound around the outer surface of the mounting column 42. As the pull rope 43 is gradually wound up, the telescopic rod 25 is forced to shrink synchronously, and the spring inside it shrinks until the telescopic rod 25 shrinks to the shortest state. At the same time as the telescopic rod 25 shrinks, the coordination plate 1 81 at its top moves synchronously, thereby pushing the coordination plate 2 82 at the bottom of the telescopic rod 12 to move, so that the telescopic rod 2 shrinks synchronously to the shortest state. Then, the handle 410 is pushed upward to move the push plate 46 upward in the connecting groove 45 until the push plate 46 moves to the inside of the connecting groove 45 The top end, during the movement of the push plate 46 in the connecting groove 45, comes into contact with the conical surface of the limit block 413, pushing the limit block 413 to move into the fixed groove 411, and causing the spring 1 412 to be forced to contract until the limit block 413 is completely retracted into the fixed groove 411, allowing the push plate 46 to pass through the fixed groove 411. When the push plate 46 passes through the fixed groove 411, the spring 1 412 is no longer stressed and recovers its original length, thereby pushing the limit block 413 in the fixed groove 411 out of the fixed groove 411, so that the limit block 413 supports the bottom end of the push plate 46, and when the push plate 46 passes through the fixed groove 411, the limit column 47 at the top end of the push plate 46 is inserted into the top end of the connecting groove 45. Under the action of the abutment force, the push plate 46 is restricted in the current position, and under the restriction of the connection between the limit column 47 and the connecting groove 45 and the connection between the clamping plate 44 and the push plate 46, the mounting column 42 cannot rotate, causing the pull rope 43 to be tightened in the current state. Under the restriction of the pull rope 43, the telescopic rod 25 cannot restore its original length, causing the telescopic rod 25 to be restricted to the shortest state, and the telescopic rod 12 is also restricted to the shortest state under the action of the coordination component 8. At this time, the entire device is placed in the pipeline, and the push plate 46 is pulled under the connecting groove 45 so that the push plate 46 passes through the fixed groove 411, and the restriction of the limit column 47 is released. At this time, the spring in the telescopic rod 25 restores its original length, and the pull rope 43 wrapped around the outside of the mounting column 42 is pulled out, so that the mounting column 42 and the push plate 46 rotates, as the pull rope 43 is gradually pulled out, the spring in the telescopic rod 2 5 gradually recovers its original length, making the telescopic rod 2 5 longer, until the moving wheel 6 abuts against the inner wall of the pipe. At the same time as the telescopic rod 2 5 becomes longer, it drives the coordination plate 1 81 to move, so that the coordination plate 2 82 is no longer restricted, and then the telescopic rod 2 becomes longer, until the grinding wheel 3 abuts against the inner wall of the pipe. In the process of the telescopic rod 2 5 becoming longer, the synchronous component 9 on the coordination plate 1 81 is driven to move synchronously until the roller 96 abuts against the inner wall of the pipe, so that the plug column 92 pushes the stopper 93 to move, and the spring 2 95 is forced to contract until it moves through the slot 94 to the rotation track of the coordination plate 2 82, so that during the rotation and grinding of the grinding wheel 3, the coordination plate 2 82 will not interfere with the stopper 93, and then the motor 2 7 is started.The motor 2 7 drives the moving wheel 6 to rotate, so that the device as a whole moves upward at a uniform speed in the pipeline, and at the same time, the motor 11 is started, and the gear 13 fixedly connected to the output end of the motor 11 begins to rotate. Since the gear 13 and the gear 2 14 are meshed and connected, the gear 13 drives the gear 2 14 to rotate, thereby rotating the mounting shell 12. During the rotation, the gear 2 14 drives the telescopic rod 1 2, so that the grinding wheel 3 rotates around the inner wall of the pipeline to grind and remove rust from the inner wall. Among them, the group of grinding wheels 3 located at the top is the coarse grinding wheel 3, which first performs preliminary grinding on the inner wall, and the group of grinding wheels 3 located at the bottom is the fine grinding wheel 3, which performs fine grinding on the inner wall. When the grinding is completed, the fine grinding wheel 3 located at the bottom has not yet completely moved out of the pipeline, and the roller 96 moves ahead of the fine grinding wheel 3. The spring 2 95 is no longer contracted under the force, and the roller 96 is pushed to move outward, thereby driving the stopper 93 to move, so that the coordination plate 2 82 is moved out of the rotation track through the slot 94. At the same time, the operation of the motor 11 is stopped, and the telescopic rod 2 continues to rotate under inertia until the coordination plate 2 82 under the telescopic rod 2 abuts against the stopper 93, so that the telescopic rod 2 is restricted to one side of the stopper 93, and the telescopic rod 2 and the telescopic rod 2 5 are reset to each other. Finally, the entire device is moved out, and the rust removal of the next group of pipes can be carried out. The moving wheel 6 is driven by the motor 2 7, and the entire device is moved upward at a uniform speed in the pipe. This process not only ensures the stability and regularity of the movement track of the device, but also avoids the grinding caused by uneven speed and route deviation during traditional manual operation. The problem of excessive or insufficient grinding can be solved, and the grinding wheel 3 can evenly cover various areas of the inner wall of the pipe. At the same time, the motor 11 drives the grinding wheel 3 to rotate around the inner wall of the pipe, so that the grinding wheel 3 performs all-round rust removal on the inner wall of the pipe in a spiral trajectory, making full use of the working area of ​​the grinding wheel 3. Compared with the traditional local and repeated grinding method, it is more scientific and efficient. Based on such an automatic operation mode, the device does not need to manually adjust the grinding position frequently, and can automatically adapt to splicing pipes of different lengths, which not only reduces the labor intensity of the operator, but also reduces the error of human operation. The adjustment component 4 can adjust the length of the telescopic rod 2 5 and the telescopic rod 1 2, so that the device can adapt to splicing pipes of different diameters, thereby enhancing the versatility and applicability of the device. The telescopic rod 2 5 can be adjusted before use. The retractable rod 2 5 and the telescopic rod 1 2 are retracted to the shortest state, which makes it easy to put the entire device into the pipeline, reducing the difficulty of operation. The pull rope 43, the installation column 42, the push plate 46, the limit block 413 and other multiple components cooperate with each other, and the elasticity of the spring and the friction and abutment between the components are used to limit and adjust. The structure is stable and can accurately control the telescopic state of the telescopic rod 2 5 to ensure the stability and reliability of the device in different working stages. The coordination component 8 can make the telescopic rod 1 2 and the telescopic rod 2 5 move synchronously. Whether in the retracted stage or the extended stage, it can ensure that the moving wheel 6 and the grinding wheel 3 are in contact with the inner wall of the pipeline at the same time, further enhancing the stability of the device operation. The operator only needs to control the extension and retraction of the telescopic rod 2 5 by adjusting the component 4.The coordination component 8 can automatically realize the synchronous extension and retraction of the telescopic rod 2, without the need to perform additional individual adjustment on the telescopic rod 2, which greatly simplifies the operation process of the device, reduces the difficulty and workload of the operator, and improves the work efficiency. By adjusting the position of the adjustment block 93 in the synchronization component 9, the through groove 94 is placed on the rotation track of the coordination plate 82, avoiding the interference between the coordination plate 82 and the block 93, ensuring that the grinding wheel 3 can rotate smoothly around the inner wall of the pipeline, ensuring the continuity and stability of the rust removal operation, and improving the rust removal efficiency. After the grinding is completed, the elastic restoring force of the spring 95 can be used to automatically adjust the position of the block 93, so that the through groove 94 moves out of the rotation track of the coordination plate 82, prompting the telescopic rod 2 to abut against the block 93 under inertial rotation, so as to realize the alignment and reset of the telescopic rod 2 and the telescopic rod 5, without the need for additional manual operation, simplifying the operation process, and improving the work efficiency.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for removing rust from the inside of a pipe joint for a hydraulic engineering project, comprising a rotating assembly (1), characterized in that: A telescopic rod 1 (2) is provided at one end of the rotating assembly (1), and a grinding wheel (3) is rotatably connected to the telescopic rod 1 (2); an adjusting assembly (4) is provided at the bottom end of the rotating assembly (1); a telescopic rod 2 (5) is provided at one end of the adjusting assembly (4); a motor 2 (7) is fixedly connected to one end of the telescopic rod 2 (5); a moving wheel (6) abutting against the inner wall of the pipe is fixedly connected to the output end of the motor 2 (7); a coordination assembly (8) for making the telescopic rod 1 (2) and the telescopic rod 2 (5) move synchronously is provided on the outer side of the telescopic rod 2 (5); and a synchronizing assembly (9) is provided at one end of the coordination assembly (8) for aligning the telescopic rod 1 (2) and the telescopic rod 2 (5) after grinding is completed, thereby restoring the coordination assembly (8) to an initial state; The adjustment component (4) comprises a motor 1 (11) fixedly connected to the adjustment component (4); the motor 1 (11) is rotatably connected to a mounting shell (12) on its outer side; a gear 2 (14) is fixedly connected to a side end of the mounting shell (12); one end of the gear 2 (14) passes through the mounting shell (12) and is fixedly connected to the telescopic rod 1 (2); the output end of the motor 1 (11) is fixedly connected to a gear 1 (13); the gear 1 (13) and the gear 2 (14) are meshingly connected; The grinding wheel (3) and the moving wheel (6) are adjusted by the coordination component (8) to contact the inner wall of the pipe at the same time, and the moving wheel (6) is driven to rotate by the second motor (7) to drive the device to move upward at a uniform speed in the pipe. At the same time, the first motor (11) is running to drive the grinding wheel (3) to rotate around the inner wall of the pipe to grind and remove rust from the inner wall.

2. The internal rust removal device for a spliced ​​pipe for a water conservancy project according to claim 1 is characterized in that: The adjustment assembly (4) comprises a fixed shell (41) fixedly connected to the bottom end of the first motor (11); a mounting column (42) is rotatably connected to the top end of the fixed shell (41); a pull rope (43) is fixedly connected to the outside of the mounting column (42); one end of the pull rope (43) passes through the fixed shell (41) and is fixedly connected to the inner wall of the second telescopic rod (5).

3. The internal rust removal device for a spliced ​​pipe for a water conservancy project according to claim 2, characterized in that: An installation groove (48) is formed through the inner wall of the fixed shell (41), a guide wheel (49) is rotatably connected in the installation groove (48), and one end of the pull rope (43) passes through the installation groove (48) and abuts against the guide wheel (49).

4. The internal rust removal device for a spliced ​​pipe for a water conservancy project according to claim 3 is characterized in that: The inner wall of the fixed shell (41) is provided with a connecting groove (45), a push plate (46) is slidably connected in the connecting groove (45), and the push plate (46) is slidably plugged with the mounting column (42), and a clamping plate (44) is fixedly connected to the outer side of the mounting column (42), and the clamping plate (44) is slidably plugged with the push plate (46).

5. The internal rust removal device for a spliced ​​pipe for a hydraulic engineering project according to claim 4, characterized in that: The top end of the push plate (46) is fixedly connected to a limiting column (47), the limiting column (47) is slidably plugged into the top end of the connection groove (45), and the bottom end of the push plate (46) is fixedly connected to a handle (410).

6. The internal rust removal device for a spliced ​​pipe for a hydraulic engineering project according to claim 5, characterized in that: The inner wall of the fixed shell (41) is provided with a fixed groove (411), a limit block (413) is slidably inserted in the fixed groove (411), one end of the limit block (413) is fixedly connected to a spring 1 (412), and one end of the spring 1 (412) is fixedly connected to the inner wall of the fixed groove (411).

7. The internal rust removal device for a spliced ​​pipe for a hydraulic engineering project according to claim 6, characterized in that: The coordination component (8) comprises a coordination plate 1 (81) fixedly connected to the top end of the telescopic rod 2 (5); the bottom end of the telescopic rod 1 (2) is fixedly connected to the coordination plate 2 (82); a ball (83) is embedded at one end of the coordination plate 2 (82); the ball (83) is rotatably connected to the coordination plate 2 (82); and one end of the ball (83) abuts against the coordination plate 1 (81).

8. The internal rust removal device for a spliced ​​pipe for a hydraulic engineering project according to claim 7, characterized in that: The synchronization component (9) comprises a mounting plate (91) fixedly connected to the coordination plate (81); one end of the mounting plate (91) is connected to a plug post (92); one end of the plug post (92) passes through the mounting plate (91) and is fixedly connected to a stopper (93); the other end of the plug post (92) is fixedly connected to a roller (96); a spring (95) is sleeved on the outer side of the plug post (92); one end of the spring (95) abuts against the roller (96) and the other end abuts against the mounting plate (91); a through groove (94) is formed at the top end of the stopper (93); the through groove (94) is adapted to the coordination plate (82).

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