An internal rust removal device for spliced pipes used in water conservancy projects

Abstract

The present invention discloses an internal rust removal device for spliced pipes used in water conservancy projects, including: a rotating assembly, one end of the rotating assembly is provided with a first telescopic rod adapted to pipes of different diameters, a grinding wheel is rotatably connected to the first telescopic rod, 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 adapted to pipes of 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 abutted against the inner wall of the pipe; in the present invention, the moving wheel is driven by the second motor, and the whole device moves 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 enables the grinding wheel to evenly cover each area of the inner wall of the pipe. Based on such an automatic operation mode, the device does not need to frequently adjust the grinding position manually, can automatically adapt to spliced pipes of different lengths, reduces the labor intensity of operators, and reduces the manual operation error.

Description

Technical Field

[0001] The present invention relates to the technical field of rust removal devices, and more particularly to an internal rust removal device for spliced pipes used in water conservancy projects. Background Technique

[0002] The spliced pipes used in water conservancy projects are important facilities for transporting, distributing, and discharging fluids such as water 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 welded connection, clamp connection, threaded connection, and socket connection, etc. The spliced pipes used in water conservancy projects are widely used in irrigation projects, water supply projects, drainage projects, and cross-river, lake, and sea water conveyance projects, etc. They are key components for realizing the rational allocation and utilization of water resources and ensuring the smooth operation of water conservancy projects. Since the production time of the pipes is different, the pipes produced earlier continue to oxidize in the air, and the pipes that have just left the factory may also rust due to poor storage conditions in the early stage. During storage and transportation, the conditions are uneven. Some pipes are placed outdoors in a site full of sundries, suffering from wind, rain, and dust erosion for a long time. Some are in transit, due to inadequate packaging protection, and coupled with significant differences in humidity in different regions, rust of varying degrees generally exists on the inner and outer walls of the pipes. In the connection parts of the spliced pipes, good sealing performance and stability are required to prevent problems such as water leakage. If there is rust on the inner wall, the connection surface will be uneven and not smooth, affecting the sealing effect, resulting in easy occurrence of gaps at the connection, thereby reducing the sealing performance and reliability of the entire pipeline system, increasing the risk of water leakage, and affecting the normal operation of water conservancy projects. Therefore, it is generally necessary to perform rust removal operations on the inner wall of the pipes before use.

[0003] Chinese Patent with Publication No. CN114290209B discloses an internal rust removal device for spliced pipes used in water conservancy projects, which mainly provides an internal rust removal device for spliced pipes used in water conservancy projects with simple operation, less manual labor, reduced rust removal cost, and improved efficiency. It includes: a placement plate, a first mounting plate, a rotating shaft, a rotating barrel, grinding rollers, 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. 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. 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 rollers to rotate. When the spliced pipe moves to the right and drives the inner wall to contact the grinding rollers, rust removal can be completed, realizing the basic function.

[0004] However, the above-mentioned existing technologies have the following deficiencies: Since the spliced pipe is composed of multiple sections of pipes spliced together, the length of each section of pipe may vary. During the rust removal operation, the grinding roller is placed into each section of the spliced pipe, and the length of the grinding roller determines the grinding area. In the case of pipes with 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, which affects the efficiency and quality of the rust removal work. Frequent manual adjustment not only consumes a large amount of manpower and time, but also easily causes incomplete rust removal on the inner wall of some pipes due to human operation errors. The remaining rust continues to pose a corrosion hazard to the pipes, increasing the subsequent maintenance cost and risk. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that since the spliced pipe is composed of multiple sections of pipes spliced together, the length of each section of pipe may vary. During the rust removal operation, the grinding roller is placed into each section of the spliced pipe, and the length of the grinding roller determines the grinding area. In the case of pipes with 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, which affects the efficiency and quality of the rust removal work. Frequent manual adjustment not only consumes a large amount of manpower and time, but also easily causes incomplete rust removal on the inner wall of some pipes due to human operation errors. The remaining rust continues to pose a corrosion hazard to the pipes, increasing the subsequent maintenance cost and risk, and to provide an internal rust removal device for spliced pipes used in water conservancy projects.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An internal rust removal device for spliced pipes used in water conservancy projects, comprising: a rotating assembly, one end of the rotating assembly is provided with a telescopic rod one adapted to pipes of different diameters, a grinding wheel is rotatably connected to the telescopic rod one, a regulating assembly is arranged at the bottom end of the rotating assembly, one end of the regulating assembly is provided with a telescopic rod two adapted to pipes of different diameters, one end of the telescopic rod two is fixedly connected with a motor two, the output end of the motor two is fixedly connected with a moving wheel that abuts against the inner wall of the pipe, a coordination assembly for synchronously moving the telescopic rod one and the telescopic rod two is arranged outside the telescopic rod two, and a synchronization assembly for aligning the telescopic rod one and the telescopic rod two after grinding is completed, so as to restore the coordination assembly to its initial state is arranged at one end of the coordination assembly;

[0007] The regulating assembly includes a motor one fixedly connected to the regulating assembly, an installation shell is rotatably connected to the outside of the motor one, a gear two is fixedly connected to the side end of the installation shell, and one end of the gear two penetrates through the installation shell and is fixedly connected with the telescopic rod one, the output end of the motor one is fixedly connected with a gear one, and the gear one and the gear two are meshed and connected;

[0008] Among them, when the grinding wheel and the moving wheel are placed in the splicing pipe, under the action of the coordination component, the first telescopic rod and the second telescopic rod move synchronously, so that the grinding wheel and the moving wheel are simultaneously in contact with the inner wall of the pipe. Then, the first motor and the second motor are started. The second motor drives the moving wheel to rotate, so that the whole device moves upward uniformly in the pipe. During the upward movement, the first motor drives the first gear to rotate, which drives the second gear to rotate, so that the installation shell rotates. During the rotation, the second gear drives the first telescopic rod, so that the grinding wheel rotates around the inner wall of the pipe to polish and remove rust from the inner wall.

[0009] As a further scheme of the present invention: The adjusting component includes a fixed shell fixedly connected to the bottom end of the first motor. The inner top end of the fixed shell is rotatably connected with an installation column. A pull rope is fixedly connected to the outer side of the installation column. One end of the pull rope penetrates through the fixed shell and is fixedly connected to the inner wall of the second telescopic rod.

[0010] As a further scheme of the present invention: An installation groove is penetrated and opened on the inner wall of the fixed shell. A guide wheel is rotatably connected in the installation groove. One end of the pull rope penetrates through the installation groove and abuts against the guide wheel.

[0011] As a further scheme of the present invention: A connection groove is opened on the inner wall of the fixed shell. A push plate is slidably connected in the connection groove, and the push plate is slidably inserted into the installation column. A clamping plate is fixedly connected to the outer side of the installation column, and the clamping plate is slidably inserted into the push plate.

[0012] As a further scheme of the present invention: A limiting column is fixedly connected to the top end of the push plate. The limiting column is slidably inserted into the inner top end of the connection groove. A handle is fixedly connected to the bottom end of the push plate.

[0013] As a further scheme of the present invention: A fixing groove is opened on the inner wall of the fixed shell. A limiting block is slidably inserted into the fixing groove. One end of the limiting block is fixedly connected with a first spring, and one end of the first spring is fixedly connected with the inner wall of the fixing groove.

[0014] As a further scheme of the present invention: The coordination component includes a first coordination plate fixedly connected to the top end of the second telescopic rod. A second coordination plate is fixedly connected to the bottom end of the first telescopic rod. A ball is embedded at one end of the second coordination plate. The ball is rotatably connected to the second coordination plate, and one end of the ball abuts against the first coordination plate.

[0015] As a further scheme of the present invention: The synchronization component includes an installation plate fixedly connected to the first coordination plate. A plug post penetrates through one end of the installation plate. One end of the plug post penetrates through the installation plate and is fixedly connected with a stop block. The other end of the plug post is fixedly connected with a roller. A second spring is sleeved on the outer side of the plug post. One end of the second spring abuts against the roller, and the other end abuts against the installation plate. A through groove is opened at the top end of the stop block, and the through groove is adapted to the second coordination plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the motor two drives the moving wheels, and the whole device moves upward at a uniform speed in the pipeline. This process not only ensures the stability and regularity of the movement trajectory of the device, avoids the problems of excessive or insufficient grinding caused by uneven speed and route deviation during traditional manual operation, but also enables the grinding wheel to evenly cover all areas of the inner wall of the pipeline. At the same time, the motor one 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 repetitive grinding methods, 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, can automatically adapt to splicing pipes of different lengths, reduces the labor intensity of operators, and reduces the human operation error;

[0018] 2. In the present invention, the adjusting component can adjust the lengths of the second telescopic rod and the first telescopic rod, so that the device can adapt to splicing pipes of different diameters, enhancing the versatility and applicability of the device. Before use, the second telescopic rod and the first telescopic rod can be retracted to the shortest state, which is convenient for putting the whole device into the pipeline and reduces the operation difficulty. By using the cooperation of multiple components such as the pull rope, the mounting column, the push plate, and the limiting block, and using the elasticity of the spring and the friction and abutting force between the components for limiting and adjusting, the structure is stable, and the telescopic state of the second telescopic rod can be accurately controlled to ensure the stability and reliability of the device in different working stages;

[0019] 3. In the present invention, the coordination component can make the first telescopic rod and the second telescopic rod move synchronously. Whether in the retraction stage or the extension stage, it can ensure that the moving wheels and the grinding wheels 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 telescopic of the second telescopic rod through the adjusting component, and the coordination component can automatically realize the synchronous telescopic of the first telescopic rod without additional separate adjustment of the first telescopic rod, greatly simplifying the operation process of the device, reducing the working difficulty and workload of the operator, and improving the work efficiency;

[0020] 4. In the present invention, by adjusting the position of the adjusting block in the synchronization component, the through groove is located on the rotation trajectory of the second coordination plate, avoiding the interference between the second coordination plate and the block, ensuring that the grinding wheel can rotate smoothly around the inner wall of the pipeline, guaranteeing the continuity and stability of the rust removal operation, and improving the rust removal efficiency. After grinding, the elastic restoring force of the second spring can be used to automatically adjust the position of the block, so that the through groove moves out of the rotation trajectory of the second coordination plate, prompting the first telescopic rod to abut against the block under inertial rotation, realizing the alignment and reset of the first telescopic rod and the second telescopic rod, without additional manual operation, simplifying the operation process, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0022] Figure 2 is the structural cross-sectional view of the telescopic rod in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0023] Figure 3 is the internal structural schematic diagram of the rotating assembly in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0024] Figure 4 is in the internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention Figure 3 structural schematic diagram of the A position;

[0025] Figure 5 is the structural schematic diagram of the adjustment assembly in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0026] Figure 6 is in the internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention Figure 5 structural schematic diagram of the B position;

[0027] Figure 7 is the structural bottom view of the rotating assembly in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0028] Figure 8 is in the internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention Figure 7 structural schematic diagram of the C position;

[0029] Figure 9 is the structural schematic diagram of the coordination assembly in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0030] Figure 10 is in the internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention Figure 9 structural schematic diagram of the D position;

[0031] Figure 11 is the structural schematic diagram of the synchronization assembly in an internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention;

[0032] Figure 12 is in the internal rust removal device for a splicing pipe used in a water conservancy project according to the present invention Figure 11 structural schematic diagram of the E position.

[0033] In the figure: 1, rotating assembly; 11, first motor; 12, mounting shell; 13, first gear; 14, second gear; 2, first telescopic rod; 3, grinding wheel; 4, adjusting assembly; 41, fixed shell; 42, mounting post; 43, pulling rope; 44, clamping plate; 45, connecting groove; 46, pushing plate; 47, limiting post; 48, mounting groove; 49, guiding wheel; 410, handle; 411, fixing groove; 412, first spring; 413, limiting block; 5, second telescopic rod; 6, moving wheel; 7, second motor; 8, coordinating assembly; 81, first coordinating plate; 82, second coordinating plate; 83, ball; 9, synchronizing assembly; 91, mounting plate; 92, inserting post; 93, blocking block; 94, passing groove; 95, second spring; 96, roller. Detailed implementation manner

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation to 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 defined and limited, the terms "mounting", "connecting", "coupling", "setting" 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, and it can be the internal communication 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 situations. The following will describe its embodiments according to the overall structure of the present invention.

[0036] Refer to Figures 1 to 4, in the embodiment of the present invention, a device for removing rust inside a spliced pipe for a water conservancy project includes: a rotating assembly 1. One end of the rotating assembly 1 is provided with a first telescopic rod 2 adapted to pipes of different diameters. The first telescopic rod 2 is a spring telescopic rod with a spring inside. There are three groups of the first telescopic rods 2, which are evenly distributed outside the rotating assembly 1. Two grinding wheels 3 are rotatably connected to each group of the first telescopic rods 2. The two grinding wheels 3 are symmetrically distributed at both ends of the first telescopic rod 2. And one group of grinding wheels 3 located above is a rough grinding wheel 3, and one group of grinding wheels 3 located below is a fine grinding wheel 3. A regulating assembly 4 is arranged at the bottom end of the rotating assembly 1. One end of the regulating assembly 4 is provided with a second telescopic rod 5 adapted to pipes of different diameters. The second telescopic rod 5 is a spring telescopic rod with a spring inside. The second telescopic rod 5 can be adjusted to the shortest state through the regulating assembly 4. There are three groups of the second telescopic rods 5, which are evenly distributed outside the regulating assembly 4. One end of each group of the second telescopic rods 5 is fixedly connected with a second motor 7. The second motor 7 is a double-output shaft motor. Each of the two output ends of the second motor 7 is fixedly connected with a moving wheel 6 abutted against the inner wall of the pipe. A coordinating assembly 8 for synchronously moving the first telescopic rod 2 and the second telescopic rod 5 is arranged outside the second telescopic rod 5, so that the moving wheel 6 and the grinding wheel 3 are simultaneously abutted against the inner wall of the pipe. One end of the coordinating assembly 8 is provided with a synchronizing assembly 9 for aligning the first telescopic rod 2 and the second telescopic rod 5 after the grinding is completed, so as to restore the coordinating assembly 8 to the initial state. Thus, when the grinding wheel 3 is moved out of the pipe, the first telescopic rod 2 and the second telescopic rod 5 are restricted by the coordinating assembly 8 and remain at the same length;

[0037] The regulating assembly 4 includes a first motor 11 fixedly connected to the regulating assembly 4. An installation shell 12 is rotatably connected to the outside of the first motor 11. The installation shell 12 is hexagonal. A second gear 14 is fixedly connected to the side end of the installation shell 12. There are three groups of the second gears 14, which are evenly distributed at the side end of the installation shell 12. And one end of each group of the second gears 14 penetrates through the installation shell 12 and is fixedly connected with a group of the first telescopic rods 2. The output end of the first motor 11 is fixedly connected with a first gear 13. The first gear 13 and the second gear 14 are meshed. The first gear 13 and the second gear 14 are bevel gears;

[0038] Among them, when the grinding wheel 3 and the moving wheel 6 are placed inside the spliced pipe, under the action of the regulating assembly 4 and the coordinating assembly 8, the first telescopic rod 2 and the second telescopic rod 5 are restricted to the shortest state and do not contact the inner wall of the spliced pipe. After that, the restriction of the regulating assembly 4 on the second telescopic rod 5 is released, so that the second telescopic rod 5 extends. And under the action of the coordinating assembly 8, the first telescopic rod 2 extends synchronously, so that the grinding wheel 3 and the moving wheel 6 are simultaneously abutted against the inner wall of the pipe. Then the first motor 11 and the second motor 7 are started. The second motor 7 drives the moving wheel 6 to rotate, so that the whole device moves upward uniformly inside the pipe. During the upward movement, the first motor 11 drives the first gear 13 to rotate, thereby driving the second gear 14 to rotate, and making the installation shell 12 rotate. During the rotation, the second gear 14 drives the first telescopic rod 2, so that the grinding wheel 3 rotates around the inner wall of the pipe to grind and remove rust from the inner wall.

[0039] Refer to Figures 5 to 8, the adjusting assembly 4 includes a fixed housing 41 fixedly connected to the bottom end of the first motor 11. Inside the fixed housing 41, a mounting post 42 is rotatably connected to the top end. The mounting post 42 is T-shaped. A pull rope 43 is fixedly connected to the outside of the mounting post 42. There are three groups of pull ropes 43, which are evenly distributed on the outside of the mounting post 42. One end of each group of pull ropes 43 penetrates the fixed housing 41 and is fixedly connected to the inner wall of a group of second telescopic rods 5. The inner wall of the fixed housing 41 is provided with three groups of through mounting grooves 48, which are evenly distributed on the inner wall of the fixed housing 41. Each group of mounting grooves 48 corresponds to a group of second telescopic rods 5. Two guide wheels 49 are rotatably connected in each group of mounting grooves 48. The two guide wheels 49 are symmetrically distributed at the upper and lower ends inside the mounting grooves 48. One end of each group of pull ropes 43 penetrates between the two guide wheels 49 in each group of mounting grooves 48. A connection groove 45 is formed in the inner wall of the fixed housing 41. A push plate 46 is slidably connected in the connection groove 45, and the push plate 46 is slidably inserted into the mounting post 42. A plurality of clamping plates 44 are fixedly connected to the outside of the mounting post 42, which are evenly distributed on the outside of the mounting post 42. The height of the clamping plates 44 is the same as the height of the connection groove 45. The clamping plates 44 are slidably inserted into the push plate 46. A plurality of limit posts 47 are fixedly connected to the top end of the push plate 46, which are evenly distributed on the top end of the push plate 46. The limit posts 47 are slidably inserted into the top end inside the connection groove 45. A handle 410 is fixedly connected to the bottom end of the push plate 46. A plurality of fixing grooves 411 are formed in the inner wall of the fixed housing 41, which are evenly distributed on the inner wall of the fixed housing 41. A group of limit blocks 413 are slidably inserted into 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 first springs 412. One end of the first springs 412 is fixedly connected to the inner wall of the fixing grooves 411. By rotating the push plate 46 through the handle 410, since the push plate 46 is slidably inserted into the mounting post 42, and the clamping plates 44 fixed to the outside of the mounting post 42 are slidably inserted into the push plate 46, the push plate 46 drives the mounting post 42 to rotate synchronously. When the mounting post 42 rotates, the pull rope 43 on its outside is wound around the outer surface of the mounting post 42. The other end of the pull rope 43 is fixedly connected to the inner wall of the second telescopic rod 5. As the pull rope 43 is gradually wound up, the second telescopic rod 5 is synchronously contracted under force, and the spring inside it also contracts accordingly until the second telescopic rod 5 contracts to the shortest state. When the second telescopic rod 5 contracts, the coordination plate 81 at its top moves synchronously, pushing the coordination plate 82 at the bottom end of the first telescopic rod 2 to move. Under the action of the coordination assembly 8, the first telescopic rod 2 also contracts to the shortest state synchronously. Then, the handle 410 is pushed upward to make the push plate 46 move upward in the connection 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 fixing groove 411. The first spring 412 is stressed and contracts. When the push plate 46 passes through the fixing groove 411, the first spring 412 is no longer stressed and returns to its original length, pushing the limit block 413 out of the fixing groove 411. The limit block 413 supports the bottom end of the push plate 46. At the same time,The limit post 47 at the top of the push plate 46 is inserted into the inner top of the connection slot 45. Under the action of the frictional force between the limit post 47 and the connection slot 45 during insertion and the abutting force of the limit block 413, the push plate 46 is restricted in its current position. Also, under the restriction of the insertion of the limit post 47 into the connection slot 45 and the insertion of the clamping plate 44 and the push plate 46, the mounting post 42 cannot rotate, and the pull rope 43 is tightened in its current state, thereby restricting the second telescopic rod 5 from returning to its original length and keeping it in the shortest state. The first telescopic rod 2 is also restricted to the shortest state under the action of the coordination component 8.

[0040] Adopting the above solution: By adjusting the lengths of the second telescopic rod 5 and the first telescopic rod 2, the device can adapt to splicing pipes of different diameters. When facing pipes of different specifications, only the adjustment component 4 needs to be adjusted so that the moving wheels 6 and the grinding wheels 3 can be in good contact with the inner wall of the pipe, ensuring the stable operation of the device in the pipe and effective rust removal. Before use, the second telescopic rod 5 and the first telescopic rod 2 can be retracted to the shortest state, which is convenient for putting the whole device into the pipe. The adjustment component 4 adopts a way of mutual cooperation of multiple components such as the pull rope 43, the mounting post 42, the push plate 46, and the limit block 413, and uses the elasticity of the spring and the frictional force and abutting force between the components for limiting and adjusting. The structure is stable, and the telescopic state of the second telescopic rod 5 can be accurately controlled, ensuring the stability and reliability of the device in different working stages.

[0041] Refer to Figures 9 to 10, the coordination component 8 includes a coordination plate 1 81 fixedly connected to the top of the telescopic rod 2 5, and the coordination plate 1 81 is provided with three groups, each group of coordination plate 1 81 is fixedly connected to a group of telescopic rod 2 5, and the bottom end of the telescopic rod 2 is fixedly connected to a coordination plate 2 82, and the coordination plate 2 82 is provided with three groups, each group of coordination plate 2 82 is fixedly connected to a group of telescopic rod 1 2, and the coordination plate 1 81 and the coordination plate 2 82 are arc-shaped, and the coordination plate 2 82 and the coordination plate 1 81 corresponding surfaces are embedded with balls 83, and the balls 83 are provided with multiple groups, which are evenly distributed on one end of the coordination plate 2 82, and the balls 83 are rotatably connected to the coordination plate 2 82, and one end of the balls 83 abuts against the coordination plate 1 81. Since the top of the telescopic rod 2 5 is fixedly connected to the coordination plate 1 81, the coordination plate 1 81 moves synchronously when the telescopic rod 2 5 contracts, and the coordination plate 1 81 and the coordination plate 2 82 at the bottom of the telescopic rod 2 Through the contact 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 facilitates the placement of the entire device into the pipeline. In 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 subject to the restriction in 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.

[0042] The above scheme is adopted: the telescopic rod 1 2 and the telescopic rod 2 5 can be moved synchronously through the coordination component 8, and the moving wheel 6 and the grinding wheel 3 can be ensured to abut against the inner wall of the pipe at the same time regardless of the contraction stage or the extension stage. 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 through the adjustment 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. This greatly simplifies the operation process of the device, reduces the operator's work difficulty and workload, and improves work efficiency.

[0043] Reference Figures 11 to 12, the synchronization component 9 includes a mounting plate 91 fixedly connected to the first coordination plate 81. There are three groups of mounting plates 91. Each group of mounting plates 91 is fixedly connected to a group of the first coordination plates 81. One end of each group of mounting plates 91 is penetrated and connected with a group of plug posts 92. One end of the plug post 92 penetrates through the mounting plate 91 and is fixedly connected with a stop block 93. The other end of the plug post 92 is fixedly connected with a roller 96. A second spring 95 is sleeved outside the plug post 92. One end of the second spring 95 abuts against the roller 96, and the other end abuts against the mounting plate 91. A through groove 94 is opened at the top of the stop block 93. The through groove 94 is arc-shaped and is adapted to the second coordination plate 82. When the telescopic rod 5 elongates and drives the first coordination plate 81 to move, and then the synchronization component 9 moves synchronously, the roller 96 abuts against the inner wall of the pipeline. The inner wall of the pipeline will generate an inward extrusion force on the roller 96, causing the plug post 92 to push the stop block 93 to move. At the same time, the second spring 95 is stressed and contracts until the through groove 94 moves to the rotation trajectory of the second coordination plate 82. In this way, during the rotation and grinding process of the grinding wheel 3, the second coordination plate 82 can smoothly pass through the through groove 94 and will not interfere with the stop block 93, ensuring the normal progress of the grinding operation. After the grinding is completed, when the fine grinding wheel 3 at the lower part has not completely moved out of the pipeline, the roller 96 moves out of the pipeline before the fine grinding wheel 3. At this time, the second spring 95 no longer receives the extrusion force of the inner wall of the pipeline on the roller 96 and returns to its original length, pushing the roller 96 to move outward, thereby driving the stop block 93 to move, so that the through groove 94 moves out of the rotation trajectory of the second coordination plate 82. At the same time, the operation of the first motor 11 is stopped, but the telescopic rod 1 will continue to rotate under the action of inertia until the second coordination plate 82 below the telescopic rod 1 abuts against the stop block 93, restricting the telescopic rod 1 to one side of the stop block 93, realizing the alignment and reset of the telescopic rod 1 and the telescopic rod 5, and the coordination component 8 also returns to the initial state accordingly.

[0044] Adopting the above solution: By adjusting the position of the stop block 93, the through groove 94 is located on the rotation trajectory of the second coordination plate 82, avoiding the interference between the second coordination plate 82 and the stop block 93, ensuring that the grinding wheel 3 can rotate smoothly around the inner wall of the pipeline, guaranteeing the continuity and stability of the rust removal operation, improving the rust removal efficiency. After the grinding is completed, the synchronization component 9 can utilize the elastic restoring force of the second spring 95 to automatically adjust the position of the stop block 93, so that the through groove 94 moves out of the rotation trajectory of the second coordination plate 82, prompting the telescopic rod 1 to abut against the stop block 93 under the inertial rotation, realizing the alignment and reset of the telescopic rod 1 and the telescopic rod 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 and the telescopic rod 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 between the device and 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, providing convenience for continuous operation and reducing the labor intensity.

[0045] The working principle of the present invention is as follows: Before use, first rotate the push plate 46 by turning the handle 410. Under the action of the clamping plate 44, the push plate 46 and the mounting post 42 rotate synchronously. When the mounting post 42 rotates, the pulling rope 43 outside the mounting post 42 is wound around the outer surface of the mounting post 42. As the pulling rope 43 is gradually wound up, the second telescopic rod 5 is synchronously contracted under force, and the spring inside it is contracted until the second telescopic rod 5 is contracted to the shortest state. While the second telescopic rod 5 is contracting, the first coordination plate 81 at its top moves synchronously, thereby pushing the second coordination plate 82 at the bottom of the first telescopic rod 2 to move, so that the first telescopic rod 2 is synchronously contracted to the shortest state. Then, push the handle 410 upward, so that the push plate 46 moves upward in the connection groove 45 until the push plate 46 moves to the inner top of the connection groove 45. During the movement of the push plate 46 in the connection groove 45, it abuts against the conical surface of the limiting block 413, pushing the limiting block 413 to move into the fixed groove 411, and causing the first spring 412 to be contracted under force until the limiting block 413 is completely retracted into the fixed groove 411, so that the push plate 46 passes through from the fixed groove 411. When the push plate 46 passes through the fixed groove 411, the first spring 412 is no longer under force and returns to its original length, thereby pushing the limiting block 413 in the fixed groove 411 out of the fixed groove 411, so that the limiting block 413 supports the bottom end of the push plate 46. And when the push plate 46 passes through the fixed groove 411, the limiting post 47 at the top of the push plate 46 is inserted into the inner top of the connection groove 45. Under the action of the frictional force of the insertion of the limiting post 47 into the connection groove 45 and the abutting force of the limiting block 413, the push plate 46 is restricted at the current position. And under the restriction of the insertion of the limiting post 47 into the connection groove 45 and the insertion of the clamping plate 44 and the push plate 46, the mounting post 42 cannot rotate, resulting in the pulling rope 43 being tightened in the current state. Under the restrictive action of the pulling rope 43, the second telescopic rod 5 cannot return to its original length, resulting in the second telescopic rod 5 being restricted to the shortest state. And the first telescopic rod 2 is also restricted to the shortest state under the action of the coordination assembly 8. At this time, the whole device is placed into the pipeline, and the push plate 46 is pulled downward in the connection groove 45, so that the push plate 46 passes through from the fixed groove 411, releasing the restriction of the limiting post 47. At this time, the spring in the second telescopic rod 5 returns to its original length, and the pulling rope 43 wound around the outside of the mounting post 42 is pulled out, causing the mounting post 42 and the push plate 46 to rotate. As the pulling rope 43 is gradually pulled out, the spring in the second telescopic rod 5 gradually returns to its original length, making the second telescopic rod 5 longer until the moving wheel 6 abuts against the inner wall of the pipeline. While the second telescopic rod 5 is getting longer, it drives the first coordination plate 81 to move, so that the second coordination plate 82 is no longer restricted, and then the first telescopic rod 2 becomes longer until the grinding wheel 3 abuts against the inner wall of the pipeline. During the process of the second telescopic rod 5 getting longer, it drives the synchronous assembly 9 on the first coordination plate 81 to move synchronously until the roller 96 abuts against the inner wall of the pipeline, causing the insertion post 92 to push the stop block 93 to move, and making the second spring 95 contract under force until it moves through the through groove 94 to the rotation trajectory of the second coordination plate 82, so that during the rotation and grinding of the grinding wheel 3, the second coordination plate 82 will not interfere with the stop block 93. Then, start the second motor 7,The second motor 7 drives the moving wheel 6 to rotate, so that the whole device moves upward uniformly in the pipeline. At the same time, the first motor 11 is started, and the first gear 13 fixedly connected to the output end of the first motor 11 starts to rotate. Since the first gear 13 and the second gear 14 are meshed and connected, the first gear 13 drives the second gear 14 to rotate, and then the mounting shell 12 rotates. During the rotation process, the second gear 14 drives the first telescopic rod 2, so that the grinding wheel 3 rotates around the inner wall of the pipeline to polish and remove rust from the inner wall. Among them, the upper set of grinding wheels 3 is the rough grinding wheel 3, which first performs preliminary grinding on the inner wall, and the lower set of grinding wheels 3 is the fine grinding wheel 3, which performs fine grinding on the inner wall. After the grinding is completed, when the lower fine grinding wheel 3 has not completely moved out of the pipeline, the roller 96 moves out of the pipeline before the fine grinding wheel 3, so that the second spring 95 is no longer forced to contract, and then pushes the roller 96 to move outward, thereby driving the block 93 to move, so that the through groove 94 moves out of the rotation trajectory of the second coordination plate 82. At the same time, the operation of the first motor 11 is stopped, and the first telescopic rod 2 continues to rotate under inertia until the second coordination plate 82 below the first telescopic rod 2 abuts against the block 93, so that the first telescopic rod 2 is restricted on one side of the block 93, and the first telescopic rod 2 and the second telescopic rod 5 reset it. Finally, the whole device is moved out, and the rust removal of the next group of pipelines can be carried out; by driving the moving wheel 6 by the second motor 7, the whole device moves upward uniformly in the pipeline. This process not only ensures the stability and regularity of the movement trajectory of the device, avoids the problems of excessive or insufficient grinding caused by uneven speed and route deviation during traditional manual operation, but also enables the grinding wheel 3 to evenly cover all areas of the inner wall of the pipeline. At the same time, the first motor 11 drives the grinding wheel 3 to rotate around the inner wall of the pipeline, so that the grinding wheel 3 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 3. Compared with the traditional local and repeated grinding methods, it is more scientific and efficient. Based on such an automatic operation method, the device does not need to frequently manually adjust the grinding position, can automatically adapt to spliced pipes of different lengths, reduces the labor intensity of operators, and reduces human operation errors. By adjusting the component 4, the lengths of the second telescopic rod 5 and the first telescopic rod 2 can be adjusted, so that the device can adapt to spliced pipes of different diameters, enhancing the versatility and applicability of the device. Before use, the second telescopic rod 5 and the first telescopic rod 2 can be retracted to the shortest state, which is convenient for putting the whole device into the pipeline and reduces the operation difficulty. By using the cooperation of multiple components such as the pull rope 43, the mounting column 42, the push plate 46, and the limit block 413, and using the elasticity of the spring and the friction and abutting force between the components for limiting and adjusting, the structure is stable, and the telescopic state of the second telescopic rod 5 can be accurately controlled to ensure the stability and reliability of the device in different working stages. Through the coordination component 8, the first telescopic rod 2 and the second telescopic rod 5 can 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 pipeline at the same time, further enhancing the stability of the device operation. The operator only needs to control the telescopic of the second telescopic rod 5 through the adjusting component 4,The coordination component 8 can automatically achieve the synchronous telescopic movement of the first telescopic rod 2 without the need for additional separate adjustment of the first telescopic rod 2, greatly simplifying the operation process of the device, reducing the work difficulty and workload of the operator, improving work efficiency. By adjusting the position of the adjustment block 93 in the synchronization component 9, the through slot 94 is placed on the rotation trajectory of the second coordination plate 82, avoiding interference between the second coordination plate 82 and the block 93, ensuring that the grinding wheel 3 can rotate smoothly around the inner wall of the pipeline, guaranteeing the continuity and stability of the rust removal operation, and improving the rust removal efficiency. After grinding, the elastic restoring force of the second spring 95 can be used to automatically adjust the position of the block 93, so that the through slot 94 moves out of the rotation trajectory of the second coordination plate 82, prompting the first telescopic rod 2 to abut against the block 93 under inertial rotation, realizing the alignment and reset of the first telescopic rod 2 and the second telescopic rod 5 without additional manual operation, simplifying the operation process and improving work efficiency.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. An internal rust removal device for a splicing pipe used in a water conservancy project, including a rotating assembly (1), characterized in that, One end of the rotating assembly (1) is provided with a first telescopic rod (2). A grinding wheel (3) is rotatably connected to the first telescopic rod (2). The bottom end of the rotating assembly (1) is provided with an adjusting assembly (4). One end of the adjusting assembly (4) is provided with a second telescopic rod (5). One end of the second telescopic rod (5) is fixedly connected to a second motor (7). The output end of the second motor (7) is fixedly connected to a moving wheel (6) that abuts against the inner wall of the pipeline. A coordination assembly (8) for synchronously moving the first telescopic rod (2) and the second telescopic rod (5) is arranged outside the second telescopic rod (5). One end of the coordination assembly (8) is provided with a synchronization assembly (9) that aligns the first telescopic rod (2) and the second telescopic rod (5) after grinding is completed, so as to return the coordination assembly (8) to its initial state. The adjusting assembly (4) includes a first motor (11) fixedly connected to the adjusting assembly (4). An installation shell (12) is rotatably connected to the outside of the first motor (11). A second gear (14) is fixedly connected to the side end of the installation shell (12). One end of the second gear (14) penetrates through the installation shell (12) and is fixedly connected to the first telescopic rod (2). The output end of the first motor (11) is fixedly connected to a first gear (13). The first gear (13) and the second gear (14) are meshed and connected. Among them, the grinding wheel (3) and the moving wheel (6) are adjusted by the coordination assembly (8) to simultaneously abut against the inner wall of the pipeline. While the second motor (7) drives the moving wheel (6) to rotate, it drives the device to move uniformly upward in the pipeline. At the same time, the first motor (11) operates to drive the grinding wheel (3) to rotate around the inner wall of the pipeline to polish and remove rust from its inner wall. The coordination assembly (8) includes a first coordination plate (81) fixedly connected to the top end of the second telescopic rod (5). A second coordination plate (82) is fixedly connected to the bottom end of the first telescopic rod (2). A ball (83) is embedded at one end of the second coordination plate (82). The ball (83) is rotatably connected to the second coordination plate (82). One end of the ball (83) abuts against the first coordination plate (81). The synchronization assembly (9) includes a mounting plate (91) fixedly connected to the first coordination plate (81). A plug post (92) is connected through one end of the mounting plate (91). One end of the plug post (92) penetrates through the mounting plate (91) and is fixedly connected to a stop block (93). The other end of the plug post (92) is fixedly connected to a roller (96). A second spring (95) is sleeved outside the plug post (92). One end of the second spring (95) abuts against the roller (96), and the other end abuts against the mounting plate (91). A through groove (94) is opened at the top end of the stop block (93). The through groove (94) is adapted to the second coordination plate (82).

2. The internal rust removal device for the spliced pipe used in the water conservancy project according to claim 1, characterized in that, The adjusting assembly (4) includes a fixed shell (41) fixedly connected to the bottom end of the first motor (11). An installation column (42) is rotatably connected to the top end inside the fixed shell (41). A pulling rope (43) is fixedly connected to the outside of the installation column (42). One end of the pulling rope (43) penetrates 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 the spliced pipe used in the water conservancy project according to claim 2, characterized in that, The inner wall of the fixed shell (41) is penetrated with an installation groove (48), a guide wheel (49) is rotatably connected in the installation groove (48), and one end of the pulling rope (43) penetrates through the installation groove (48) and abuts against the guide wheel (49).

4. The internal rust removal device for the spliced pipe used in the water conservancy project according to claim 3, characterized in that, A connection groove (45) is formed in the inner wall of the fixed shell (41), a push plate (46) is slidably connected in the connection groove (45), and the push plate (46) is slidably inserted into the installation column (42). A clamping plate (44) is fixedly connected to the outside of the installation column (42), and the clamping plate (44) is slidably inserted into the push plate (46).

5. The internal rust removal device for the splicing pipe used in the water conservancy project according to claim 4, wherein, A limiting column (47) is fixedly connected to the top end of the push plate (46), the limiting column (47) is slidably inserted into the inner top end of the connection groove (45), and a handle (410) is fixedly connected to the bottom end of the push plate (46).

6. The internal rust removal device for the spliced pipe used in the water conservancy project according to claim 5, characterized in that, A fixing groove (411) is formed in the inner wall of the fixed shell (41), a limiting block (413) is slidably inserted into the fixing groove (411), one end of the limiting block (413) is fixedly connected with a first spring (412), and one end of the first spring (412) is fixedly connected with the inner wall of the fixing groove (411).

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