A device for rounding off water conservancy pipeline

Abstract

This invention discloses a pipe circumference straightening device, belonging to the field of pipe circumference straightening. It includes an installation mechanism with multiple circumference straightening mechanisms on its upper surface; a driving mechanism on the left side of each circumference straightening mechanism; multiple one-way actuating mechanisms on the right side of the driving mechanism; multiple one-way rotating mechanisms above the installation mechanism and located to the left of the circumference straightening mechanisms; and an abutting mechanism above the installation mechanism and located to the right of the circumference straightening mechanisms. The installation mechanism includes an installation base plate, with installation side plates integrally formed on its upper surface. Multiple straightening arc plates are evenly distributed along the circumference, simultaneously applying straightening force to all parts of the pipe circumference. This overcomes the limitation of traditional equipment that can only achieve partial circumference straightening, ensuring comprehensive correction of pipe ellipticity deviation, guaranteeing the sealing performance of subsequent pipe connections, and reducing the risk of leakage.

Description

Technical Field

[0001] This invention relates to the field of pipe rounding, and more particularly to a rounding device for water conservancy pipelines. Background Technology

[0002] In water conservancy project construction, the connection quality of pipelines is directly related to the operational safety and stability of the entire water conservancy system. Whether it is concrete pipe, steel pipe or plastic composite pipe, during transportation, storage or construction, it is easily affected by factors such as external extrusion and temperature changes, and is prone to problems such as local deformation and excessive ellipticity.

[0003] When there is an ellipticity deviation in the pipeline, pipeline connection will face many challenges: the sealing performance of the interface will decrease, which will easily lead to leakage, not only wasting water resources, but also causing foundation settlement due to long-term leakage, threatening the safety of the surrounding structure; forced splicing will cause additional stress at the pipeline interface, reducing the overall load-bearing capacity of the pipeline and shortening its service life; for pipelines using sealing rings, excessive ellipticity will cause uneven stress on the sealing rings, further increasing the risk of seal failure.

[0004] Patent CN116673404A discloses a hole-expanding and rounding device for metallurgical composite pipe components, comprising: a device frame, a hydraulic cylinder assembly, an expansion unit assembly, a clamping block, a locking support plate, and an auxiliary positioning mechanism assembly. This invention provides a hole-expanding and rounding device for metallurgical composite pipe components, enabling precise hole expansion and rounding of pipe components, facilitating subsequent processing and manufacturing, improving product qualification rate, reducing costs and increasing efficiency, and saving energy and reducing emissions. However, the above technology has significant limitations in practical applications: First, the rounding effect is unsatisfactory; a single expansion operation can only round a local area of ​​the pipe, making it difficult to achieve comprehensive circumferential correction. Second, to achieve full circumferential rounding, the pipe fitted outside the expansion unit assembly needs to be manually rotated multiple times. This operation not only increases labor costs and working time but also, due to the lack of a stable protection and positioning mechanism during pipe rotation, is prone to pipe slippage, displacement, and other unexpected situations, posing significant safety risks. Based on this, we propose a rounding device for hydraulic pipelines. Summary of the Invention

[0005] Purpose of the Invention: The purpose of this invention is to provide a rounding device for water conservancy pipelines, which can comprehensively and accurately round water conservancy pipelines with local deformation and excessive ellipticity, ensuring that all parts of the pipeline in the circumferential direction can be effectively corrected, thereby ensuring the sealing performance of pipeline connection, reducing the risk of leakage, and improving the safety and stability of water conservancy system operation. Another purpose of this invention is to provide an operation method that can achieve full circumferential rounding without manual rotation of the pipeline multiple times. By optimizing the equipment structure, reducing labor costs and operation time, eliminating safety hazards, and improving the efficiency and safety of rounding operations, this invention can help improve the quality of pipeline connection in water conservancy engineering construction.

[0006] Technical solution: A circular device for water conservancy pipelines, including an installation mechanism, wherein multiple circular mechanisms are provided on the upper surface of the installation mechanism;

[0007] A drive mechanism is provided on the left side of the circular mechanism;

[0008] The right side of the drive mechanism is provided with multiple one-way toggle mechanisms;

[0009] Above the mounting mechanism and to the left of the outer side of the circular mechanism, there are multiple unidirectional rotation mechanisms.

[0010] An abutment mechanism is provided above the installation mechanism and to the right of the outer side of the circular mechanism.

[0011] The mounting mechanism includes a mounting base plate, and the upper surface of the mounting base plate is integrally formed with mounting side plates;

[0012] The circular shaping mechanism includes a hollow cylinder with multiple through-type shrinkage grooves on the outer side of the hollow cylinder. A fixing strip is fixedly connected to the inner side of the shrinkage groove. A movable frame is slidably installed on the inner side of the shrinkage groove and outside the fixing strip. A straightening arc plate is fixedly connected to one end of the movable frame away from the center of the hollow cylinder and outside the hollow cylinder.

[0013] An extrusion rod is provided on the inner side of the hollow cylinder and between the multiple moving frames;

[0014] The left side of the hollow cylinder is fixedly connected to the right side of the mounting side plate.

[0015] Furthermore, the bottom of the mounting base is fixedly connected to multiple support legs, and the bottom ends of the support legs are fixedly connected to casters.

[0016] Furthermore, a mounting groove is provided on the front of the upper surface of the mounting base plate. A transverse screw is rotatably connected to the inner side of the mounting groove via a rotating shaft. A movable block is threadedly connected to the outer side wall of the transverse screw. The movable block is slidably connected to the mounting groove. The right end of the transverse screw extends through to the right side of the mounting base plate and is fixedly connected to a knob.

[0017] Furthermore, a second mounting groove is provided on the upper surface of the mounting base plate and behind the first mounting groove. A guide rod is fixedly connected inside the second mounting groove, and a second moving block is slidably connected to the outer wall of the guide rod.

[0018] Furthermore, multiple extrusion cylinders are fixedly connected to the outer wall of the extrusion rod, and wedge-shaped pressure blocks are fixedly connected to the side of the moving frame close to the extrusion rod and to the right of the multiple extrusion cylinders. Multiple springs are fixedly connected between the moving frame and the fixing strip.

[0019] Furthermore, the driving mechanism includes a vertical plate, the bottom of which is fixedly connected to the left side of the upper surface of the mounting base plate. Multiple hydraulic cylinders are fixedly connected to the right side of the vertical plate, and the output ends of the multiple hydraulic cylinders are fixedly connected to a push plate. The left ends of the multiple extrusion rods all penetrate to the left side of the mounting side plate and are fixedly connected to the right side of the push plate.

[0020] Furthermore, the one-way actuation mechanism includes a mounting strip, the interior of which is rotatably connected to multiple shafts via a pivot. A stop block is fixedly connected to the bottom end of each shaft. A torsion spring is fixedly connected to the lower surface of the mounting strip and the upper surface of the stop block, located on the outer side wall of the shaft. A pawl is fixedly connected to the top end of the shaft. A stop post is fixedly connected to the upper surface of the mounting strip, located on the right side of each of the multiple pawls. The left side of the mounting strip is fixedly connected to the right side of the push plate.

[0021] Furthermore, the unidirectional rotation mechanism includes a mounting block one, a ratchet rotatably connected to the upper surface of the mounting block one via a rotating shaft, a bevel gear one fixedly connected to the upper surface of the ratchet, a bevel gear two rotatably connected to the right side of the outer side wall of the bevel gear one via a rotating shaft, a cylinder fixedly connected to the right end of the bevel gear two, a mounting block two rotatably connected to the outer side wall of the cylinder via a rotating shaft, a spur gear fixedly connected to the right end of the cylinder, a clamping gear ring meshing with the outer side wall of the spur gear located outside the complete circular mechanism, a clamping gear ring rotatably connected to the left side of the mounting side plate via a rotating shaft, a right side of the mounting block one fixedly connected to the left side of the mounting side plate, a bottom of the mounting block two fixedly connected to the top of the mounting side plate, and the ratchet and the pawl being adapted to each other.

[0022] Furthermore, the abutting mechanism includes a U-shaped rod, the bottom ends of which are fixedly connected to the tops of the first and second movable blocks, respectively. The top of the U-shaped rod has multiple through-type movable slots, and a rotating rod is rotatably connected to the inside of the multiple movable slots via a rotating shaft. The outer walls of the multiple rotating rods, located inside the multiple movable slots, are integrally formed with bidirectional screw grooves. Two movable rods are threaded to the outer walls of the bidirectional screw grooves. An arc-shaped clamping rod is functionally connected to the bottom of the movable rod. Multiple ball bearings are embedded on the left side of the arc-shaped clamping rod. The front end of the rotating rod extends through to the front of the U-shaped rod and is fixedly connected to a knob.

[0023] Beneficial effects: Multiple straightening arc plates are evenly distributed along the circumference, which can simultaneously apply straightening force to all parts of the pipe circumference. This solves the limitation of traditional equipment that can only partially round the pipe, ensuring that the ellipticity deviation of the pipe is fully corrected, guaranteeing the sealing performance of subsequent pipe connections, and reducing the risk of leakage.

[0024] The extension and retraction of the straightening arc plate is achieved by the hydraulic drive of the drive mechanism. Combined with the one-way toggle mechanism and the one-way rotation mechanism, the automatic intermittent rotation of the pipeline is realized. There is no need for manual rotation of the pipeline multiple times, which greatly reduces labor costs and working time and improves the efficiency of the whole circle operation.

[0025] It avoids unexpected situations such as pipe slippage and displacement that may occur during manual pipe rotation. At the same time, the power output of hydraulic drive is stable and controllable, and can accurately adjust the correction force according to the degree of pipe deformation, preventing secondary damage to the pipe and improving operational safety.

[0026] The installation mechanism can adjust the position of the contact mechanism according to the pipe length. The arc-shaped clamping rod spacing of the contact mechanism can be adjusted through a two-way screw structure, which is suitable for pipes of different lengths and diameters, thus improving the applicability of the device and meeting the full circle requirements of various pipes in water conservancy projects.

[0027] Each mechanism is fixed to the installation mechanism through a reasonable connection method to ensure the overall stability of the equipment during operation. When the pipeline rotates, the clamping toothed ring and the arc-shaped clamping rod work together, and the friction is reduced by the ball bearings to make the pipeline rotate smoothly, avoid deviation or slippage, and ensure the accuracy of the whole circle.

[0028] The device utilizes a stable platform provided by the installation mechanism and incorporates multiple pipe-rounding mechanisms. During operation, multiple pipes can be fitted onto the outside of different pipe-rounding mechanisms and secured by various abutment mechanisms. Multiple hydraulic cylinders of the drive mechanism synchronously drive the extrusion rods of the corresponding pipe-rounding mechanisms, causing multiple straightening arc plates to simultaneously apply straightening forces to different pipes. Simultaneously, each unidirectional actuation mechanism and unidirectional rotation mechanism work together to achieve synchronous intermittent rotation of multiple pipes. This parallel pipe-rounding mode, combined with the device's automated operation, allows for the completion of more pipe-rounding processes per unit time. Compared to traditional equipment that can only process a single pipe at a time, this significantly shortens the total time for large-scale pipe-rounding operations, greatly improves the efficiency of pipe pretreatment in water conservancy projects, and provides strong support for project progress. Attached Figure Description

[0029] Figure 1 This is a front view structural diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure on the right side of the present invention;

[0031] Figure 3 This is a bottom view schematic diagram of the connection structure of the mounting mechanism and the driving mechanism of the present invention;

[0032] Figure 4 This is a schematic diagram of the left side structure of the abutment mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the left-side connection structure of the rotating rod and the arc-shaped clamping rod of the present invention;

[0034] Figure 6 This is a schematic diagram of the one-way actuation mechanism of the present invention;

[0035] Figure 7 This is a schematic diagram of the unidirectional rotation mechanism of the present invention;

[0036] Figure 8 This is a cross-sectional structural schematic diagram of the circular mechanism of the present invention;

[0037] Figure 9 This is a schematic diagram of the hollow cylinder structure of the present invention.

[0038] In the diagram: 1. Mounting mechanism; 2. Rounding mechanism; 3. Drive mechanism; 4. One-way actuation mechanism; 5. One-way rotation mechanism; 6. Abutment mechanism; 101. Mounting base plate; 102. Mounting side plate; 103. Support leg; 104. Caster wheel; 105. Mounting slot one; 106. Transverse screw; 107. Moving block one; 108. Knob one; 109. Mounting slot two; 110. Guide rod; 111. Moving block two; 201. Hollow cylinder; 202. Shrinkage groove; 203. Fixing strip; 204. Moving frame; 205. Correcting arc plate; 206. Extrusion round rod; 207. Extrusion cylinder; 208. Wedge shape 209. Pressure block; 301. Spring 1; 302. Vertical plate; 303. Hydraulic cylinder; 304. Push plate; 405. Mounting strip; 406. Shaft; 407. Stop block; 408. Torsion spring; 409. Pawl; 400. Stop post; 501. Mounting block 1; 502. Ratchet; 503. Bevel gear 1; 504. Bevel gear 2; 505. Cylinder; 506. Mounting block 2; 507. Circular gear; 508. Clamping gear ring; 601. U-shaped rod; 602. Movable groove; 603. Rotating rod; 604. Two-way screw groove; 605. Moving rod; 606. Arc-shaped clamping rod; 607. Ball bearing; 608. Knob 2. Detailed Implementation

[0039] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, a circular device for water conservancy pipelines is provided, including an installation mechanism 1;

[0041] The mounting mechanism 1 includes a mounting base plate 101, and a mounting side plate 102 is integrally formed on the upper surface of the mounting base plate 101.

[0042] Multiple support legs 103 are fixedly connected to the bottom of the mounting base plate 101, and universal wheels 104 are fixedly connected to the bottom end of the support legs 103.

[0043] A mounting groove 105 is provided on the front of the upper surface of the mounting base plate 101. A transverse screw 106 is rotatably connected to the inner side of the mounting groove 105 via a rotating shaft. A movable block 107 is threadedly connected to the outer side wall of the transverse screw 106. The movable block 107 is slidably connected to the mounting groove 105. The right end of the transverse screw 106 extends to the right side of the mounting base plate 101 and is fixedly connected to a knob 108.

[0044] A second mounting groove 109 is provided on the upper surface of the mounting base plate 101 and behind the mounting groove 105. A guide rod 110 is fixedly connected inside the second mounting groove 109, and a second moving block 111 is slidably connected to the outer wall of the guide rod 110.

[0045] The installation mechanism 1 serves as the basic support and movement adjustment structure for the entire device, providing a stable installation platform for other mechanisms and enabling position adjustment. The installation base plate 101 is the core load-bearing component, and its bottom support legs 103 cooperate with the casters 104 to allow the device to be moved flexibly to the pipeline operation site, improving the mobility of the equipment. When a fixed device is required, stable parking can be achieved through the braking function of the casters 104.

[0046] The transverse screw 106 and the movable block 107 in the mounting slot 105 form a transverse adjustment assembly. When the operator turns the knob 108, the transverse screw 106 rotates. Since the movable block 107 is slidably connected to the mounting slot 105, the threaded drive will cause the movable block 107 to move left and right along the mounting slot 105. At the same time, the guide rod 110 in the mounting slot 219 guides the movable block 211, ensuring that the movable block 107 and the movable block 211 move synchronously, providing a basis for the subsequent position adjustment of the abutment mechanism 6. The distance between the abutment mechanism 6 and the rounding mechanism 2 can be adjusted according to the pipe length to meet the rounding requirements of pipes of different specifications.

[0047] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the upper surface of the mounting mechanism 1 is provided with multiple circular mechanisms 2;

[0048] The rounding mechanism 2 includes a hollow cylinder 201. Multiple through-type shrinkage grooves 202 are provided on the outer side of the hollow cylinder 201. A fixing strip 203 is fixedly connected to the inner side of the shrinkage groove 202. A movable frame 204 is slidably installed on the inner side of the shrinkage groove 202 and on the outer side of the fixing strip 203. A straightening arc plate 205 is fixedly connected to the end of the movable frame 204 away from the center of the hollow cylinder 201 and on the outer side of the hollow cylinder 201.

[0049] An extrusion rod 206 is provided on the inner side of the hollow cylinder 201 and between multiple moving frames 204;

[0050] The left side of the hollow cylinder 201 is fixedly connected to the right side of the mounting side plate 102;

[0051] Multiple extrusion cylinders 207 are fixedly connected to the outer wall of the extrusion rod 206. The moving frame 204 is located on the side of the extrusion rod 206 and to the right of the multiple extrusion cylinders 207. Wedge-shaped pressure blocks 208 are fixedly connected to each other. Multiple springs 209 are fixedly connected between the moving frame 204 and the fixing strip 203.

[0052] The rounding mechanism 2 is the core execution component for realizing the rounding and correction of the pipeline. It completes the full circumference rounding through the coordinated action of multiple correction components. The hollow cylinder 201 serves as the mounting base, and the shrinkage groove 202 on its outer side provides sliding space for the moving frame 204. The fixing strip 203 plays a limiting and guiding role for the moving frame 204 to prevent the moving frame 204 from shifting during the sliding process.

[0053] In the initial state, spring 209 is in a natural extension and contraction state, and the moving frame 204 drives the straightening arc plate 205 to the contracted position, which facilitates the pipe to be fitted into the outer side of the rounding mechanism 2. When the extrusion rod 206 moves to the right, the extrusion cylinder 207 on its outer side will contact the wedge-shaped pressure block 208 on the inner side of the moving frame 204. Using the extrusion action of the wedge structure, the moving frame 204 is pushed to move along the contraction groove 202 away from the center of the hollow cylinder 201, so that the straightening arc plate 205 contacts the inner wall of the pipe and applies radial force. Multiple straightening arc plates 205 are evenly distributed along the circumference, which can simultaneously apply straightening force to all parts of the pipe circumference to achieve full rounding and solve the problem of poor local rounding effect of traditional equipment. When the extrusion rod 206 is reset, the elastic force of spring 209 pulls the moving frame 204 to reset, which facilitates the removal of the straightened pipe.

[0054] like Figure 1 , Figure 2 and Figure 3 As shown, a drive mechanism 3 is provided on the left side of the circular mechanism 2;

[0055] The drive mechanism 3 includes a vertical plate 301. The bottom of the vertical plate 301 is fixedly connected to the left side of the upper surface of the mounting base plate 101. Multiple hydraulic cylinders 302 are fixedly connected to the right side of the vertical plate 301. The output ends of the multiple hydraulic cylinders 302 are fixedly connected to a push plate 303. The left ends of multiple extrusion rods 206 all penetrate to the left side of the mounting side plate 102 and are fixedly connected to the right side of the push plate 303.

[0056] The drive mechanism 3 provides power output to the rounding mechanism 2 and the one-way toggle mechanism 4, and is the key to the automated operation of the device. The vertical plate 301 is fixed on the mounting base plate 101 and provides stable support for the hydraulic cylinder 302. When the hydraulic cylinder 302 is started, its output end pushes the push plate 303 to move left and right. The push plate 303 drives the extrusion rod 206 to move synchronously, realizing the extrusion cylinder 207 to extrude or release the wedge-shaped pressure block 208, thereby controlling the extension and retraction of the straightening arc plate 205.

[0057] The hydraulic cylinder 302 has a stable and adjustable power output, which can precisely control the magnitude of the correction force according to the degree of pipeline deformation, avoiding secondary damage to the pipeline due to excessive force. At the same time, the synchronous movement of the push plate 303 ensures that the multiple extrusion rods 206 move in unison, ensuring that each correction arc plate 205 is subjected to uniform force, improving the accuracy of the whole circle. Compared with traditional manual operation, the hydraulic drive method greatly improves the work efficiency and reduces labor costs.

[0058] like Figure 1 , Figure 2 and Figure 6 As shown, multiple one-way toggle mechanisms 4 are provided on the right side of the drive mechanism 3;

[0059] The one-way actuation mechanism 4 includes a mounting strip 401. Multiple shafts 402 are rotatably connected inside the mounting strip 401 via a rotating shaft. A stop block 403 is fixedly connected to the bottom end of the shaft 402. A torsion spring 404 is fixedly connected to the lower surface of the mounting strip 401 and the upper surface of the stop block 403, located on the outer side wall of the shaft 402. A pawl 405 is fixedly connected to the top end of the shaft 402. A stop post 406 is fixedly connected to the upper surface of the mounting strip 401, located on the right side of the multiple pawls 405. The left side of the mounting strip 401 is fixedly connected to the right side of the push plate 303.

[0060] The one-way actuation mechanism 4, in conjunction with the one-way rotation mechanism 5, enables the automatic intermittent rotation of the pipe, allowing for full circumference completion without manual pipe rotation. The mounting strip 401 is fixedly connected to the push plate 303 and moves synchronously with the push plate 303. When the push plate 303 moves to the left, the pawl 405 at the top of the shaft 402 contacts the ratchet 502. Due to the restriction of the pawl 405's rotation by the stop post 406, the pawl 405 drives the ratchet 502 to rotate at a certain angle. When the push plate 303 moves to the right, due to the weight of the pipe to be rounded, which is clamped between the one-way rotation mechanism 5 and the abutment mechanism 6, and the fact that the pawl 405's rotation is not blocked by 406, the pawl 405 flips under the pressure of the ratchet 502's teeth, and the torsion spring 404 is twisted. At this time, the pawl 405 does not drive the ratchet 502 to rotate, thus achieving the one-way actuation function.

[0061] This intermittent rotation method allows the pipeline to rotate a certain angle after each circumference operation, ensuring that all parts of the pipeline circumference can be acted upon by the correction arc plate 205, achieving full circumference, eliminating the safety hazards caused by manual pipeline rotation, and improving the continuity and efficiency of the circumference operation.

[0062] like Figure 1 , Figure 2 and Figure 7 As shown, multiple one-way rotating mechanisms 5 are provided above the mounting mechanism 1 and to the left of the outer side of the circular mechanism 2.

[0063] The one-way rotation mechanism 5 includes a mounting block 501. A ratchet 502 is rotatably connected to the upper surface of the mounting block 501 via a rotating shaft. A bevel gear 503 is fixedly connected to the upper surface of the ratchet 502. A bevel gear 504 is rotatably connected to the right side of the outer wall of the bevel gear 503 via a rotating shaft. A cylinder 505 is fixedly connected to the right end of the bevel gear 504. A mounting block 506 is rotatably connected to the outer wall of the cylinder 505 via a rotating shaft. A spur gear 507 is fixedly connected to the right end of the cylinder 505. A clamping toothed ring 508 is meshed with the outer wall of the spur gear 507 located outside the circular mechanism 2. The left side of the clamping toothed ring 508 is rotatably connected to the right side of the mounting side plate 102 via a rotating shaft. The right side of the mounting block 501 is fixedly connected to the left side of the mounting side plate 102. The bottom of the mounting block 506 is fixedly connected to the top of the mounting side plate 102. The ratchet 502 is adapted to the pawl 405.

[0064] The one-way rotation mechanism 5 converts the intermittent power of the one-way actuation mechanism 4 into the intermittent rotation of the pipe, achieving a uniform full circle. Mounting block 1 501 and mounting block 2 506 provide rotational support for ratchet 502 and cylinder 505, respectively. When ratchet 502 rotates under the drive of pawl 405, bevel gear 1 503 at its top rotates synchronously. Through meshing transmission with bevel gear 2 504, it drives cylinder 505 and spur gear 507 to rotate. Spur gear 507 then drives clamping toothed ring 508 to rotate.

[0065] The right side of the clamping toothed ring 508 contacts the left side of the pipe, and in conjunction with the abutment mechanism 6, its rotation will drive the pipe to rotate synchronously. Due to the unidirectional rotation characteristic of the ratchet 502, the pipe can only rotate intermittently in one direction. Multiple unidirectional rotation mechanisms 5 work together to ensure that the pipe rotates smoothly and avoids deviation or slippage. This structural design realizes the automatic rotation of the pipe during the full circle process without manual intervention, which solves the drawback of traditional equipment that requires multiple manual rotations of the pipe and greatly improves the safety and efficiency of the operation.

[0066] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, an abutting mechanism 6 is provided above the mounting mechanism 1 and to the right of the outer side of the circular mechanism 2.

[0067] The abutting mechanism 6 includes a U-shaped rod 601. The bottom ends of the U-shaped rod 601 are fixedly connected to the top of the first movable block 107 and the second movable block 111, respectively. The top of the U-shaped rod 601 is provided with multiple through movable slots 602. The multiple movable slots 602 are connected to a rotating rod 603 through a rotating shaft. The outer walls of the multiple rotating rods 603 and the inner walls of the multiple movable slots 602 are integrally formed with bidirectional screw grooves 604. The outer walls of the bidirectional screw grooves 604 are threaded with two movable rods 605. The bottom end of the movable rods 605 is connected to an arc-shaped clamping rod 606 for a specified function. Multiple balls 607 are embedded on the left side of the arc-shaped clamping rod 606. The front end of the rotating rod 603 extends to the front of the U-shaped rod 601 and is fixedly connected to a knob 608.

[0068] The abutment mechanism 6 is used to clamp and fix the pipe. It works with the rounding mechanism 2 and the rotating mechanism to achieve stable rounding. The U-shaped rod 601 is connected to the moving block 107 and the moving block 211 through the bottom. It can move left and right synchronously with the moving blocks to adapt to the clamping requirements of pipes of different lengths. The operator turns the knob 2 608 to drive the rotating rod 603 to rotate. The bidirectional screw groove 604 on the outside of the rotating rod 603 is threaded with the moving rod 605, so that the two moving rods 605 move towards or away from each other along the movable groove 602, thereby controlling the clamping or releasing of the pipe by the arc-shaped clamping rod 606.

[0069] The left side of the arc-shaped clamping rod 606 fits against the right side of the pipe, improving clamping stability. The ball bearing 607 on its left side reduces friction when the pipe rotates, ensuring that the pipe can rotate smoothly with the clamping toothed ring 508. Multiple arc-shaped clamping rods 606 work together to clamp the pipe from different directions, preventing axial or radial displacement of the pipe during the rounding process and ensuring the rounding accuracy. This adjustable clamping structure is suitable for pipes of different diameters, improving the versatility of the device.

[0070] Work process: The device is moved to the pipeline operation site by means of the casters 104 at the bottom of the bottom support leg 103 of the installation mechanism 1. The device is fixed by the braking function of the casters 104. According to the length of the pipeline to be rounded, the operator turns the knob 108 to drive the transverse screw 106 to rotate in the installation groove 105, so that the threaded moving block 107 slides along the installation groove 105. At the same time, the moving block 211 slides synchronously on the guide rod 110, thereby adjusting the position of the U-shaped rod 601 to ensure that the distance between the abutment mechanism 6 and the rounding mechanism 2 is adapted to the pipeline length.

[0071] The pipe with elliptic deviation is placed on the outside of the rounding mechanism 2, so that the left side of the pipe contacts the clamping toothed ring 508 of the one-way rotation mechanism 5. The operator turns the knob 608, which drives the rotating rod 603 to rotate. The two-way screw groove 604 on the outside of the rotating rod 603 drives the two moving rods 605 to move towards each other along the movable groove 602, so that the arc-shaped clamping rod 606 clamps the pipe from the right side. The ball 607 on the left side of the arc-shaped clamping rod 606 fits against the right side of the pipe, thus completing the fixation of the pipe.

[0072] The hydraulic cylinder 302 of the drive mechanism 3 is activated. The output end of the hydraulic cylinder 302 pushes the push plate 303 to move to the right. The push plate 303 drives the extrusion rod 206 to move to the right in sync. The extrusion cylinder 207 on the outside of the extrusion rod 206 contacts the wedge-shaped pressure block 208 on the inside of the moving frame 204. Through the wedge extrusion action, the moving frame 204 is pushed to move along the shrinkage groove 202 away from the center of the hollow cylinder 201, so that the straightening arc plate 205 contacts the inner wall of the pipe and applies radial straightening force. Multiple straightening arc plates 205 work simultaneously to achieve local rounding of the pipe.

[0073] When the push plate 303 moves to the right to its limit position, the hydraulic cylinder 302 drives the push plate 303 to reset to the left. The mounting strip 401 on the right side of the push plate 303 moves synchronously with it. The pawl 405 at the top of the shaft 402 contacts the ratchet 502. Under the restriction of the stop 406, the pawl 405 drives the ratchet 502 to rotate a certain angle. The bevel gear 503 at the top of the ratchet 502 meshes with the bevel gear 504, driving the cylinder 505 and the spur gear 507 to rotate. The spur gear 507 drives the clamping gear ring 508 to rotate, thereby driving the pipeline to rotate synchronously by a certain angle. When the push plate 303 continues to move to the right, the pawl 405 flips upward under the pressure of the ratchet 502 teeth. The torsion spring 404 is twisted and does not drive the ratchet 502 to rotate.

[0074] The hydraulic cylinder 302 pushes the push plate 303 to the right again, and the extrusion rod 206 drives the extrusion cylinder 207 to extrude the wedge-shaped pressure block 208 again. The straightening arc plate 205 applies a straightening force to the new circumferential part of the pipeline. Then the push plate 303 returns to the right, and the one-way actuation mechanism 4 drives the pipeline to rotate a certain angle again. This process is repeated until all parts of the pipeline circumference are effectively straightened.

[0075] After the rounding operation is completed, the hydraulic cylinder 302 drives the push plate 303 and the extrusion rod 206 to reset, the elastic force of the spring 209 pulls the moving frame 204 to reset, and the straightening arc plate 205 separates from the inner wall of the pipe. The operator rotates the knob 608 in the opposite direction to release the arc clamp 606 from the pipe, and removes the straightened pipe from the outside of the rounding mechanism 2, completing the entire operation process.

[0076] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A circular device for water conservancy pipelines, comprising an installation mechanism (1), characterized in that: The upper surface of the mounting mechanism (1) is provided with multiple circular mechanisms (2); A drive mechanism (3) is provided on the left side of the circular mechanism (2); Multiple one-way toggle mechanisms (4) are provided on the right side of the drive mechanism (3). Above the mounting mechanism (1) and to the left of the outer side of the circular mechanism (2), there are multiple one-way rotating mechanisms (5). An abutting mechanism (6) is provided above the mounting mechanism (1) and to the right of the outer side of the circular mechanism (2). The mounting mechanism (1) includes a mounting base plate (101), and a mounting side plate (102) is integrally formed on the upper surface of the mounting base plate (101). The rounding mechanism (2) includes a hollow cylinder (201). Multiple through-type shrinkage grooves (202) are provided on the outer side of the hollow cylinder (201). A fixing strip (203) is fixedly connected to the inner side of the shrinkage groove (202). A movable frame (204) is slidably installed on the inner side of the shrinkage groove (202) and on the outer side of the fixing strip (203). A straightening arc plate (205) is fixedly connected to one end of the movable frame (204) away from the center of the hollow cylinder (201) and on the outer side of the hollow cylinder (201). An extrusion rod (206) is provided inside the hollow cylinder (201) and between the plurality of movable frames (204). The left side of the hollow cylinder (201) is fixedly connected to the right side of the mounting side plate (102); The driving mechanism (3) includes a push plate (303), and the left ends of the plurality of extrusion rods (206) all penetrate to the left side of the mounting side plate (102) and are fixedly connected to the right side of the push plate (303). The one-way actuation mechanism (4) includes a mounting strip (401), and multiple shafts (402) are rotatably connected inside the mounting strip (401) via a rotating shaft. A stop block (403) is fixedly connected to the bottom end of the shaft (402). A torsion spring (404) is fixedly connected to the lower surface of the mounting strip (401) and the upper surface of the stop block (403) located on the outer side wall of the shaft (402). A pawl (405) is fixedly connected to the top end of the shaft (402). A stop post (406) is fixedly connected to the upper surface of the mounting strip (401) located on the right side of the multiple pawls (405). The left side of the mounting strip (401) is fixedly connected to the right side of the push plate (303). The unidirectional rotation mechanism (5) includes a mounting block one (501). A ratchet (502) is rotatably connected to the upper surface of the mounting block one (501) via a rotating shaft. A bevel gear one (503) is fixedly connected to the upper surface of the ratchet (502). A bevel gear two (504) is rotatably connected to the right side of the outer wall of the bevel gear one (503) via a rotating shaft. A cylinder (505) is fixedly connected to the right end of the bevel gear two (504). A mounting block two (506) is rotatably connected to the outer wall of the cylinder (505) via a rotating shaft. The right side of the cylinder (505) is... A spur gear (507) is fixedly connected to the end. The outer side wall of the spur gear (507) is located on the outer side of the rounding mechanism (2) and is meshed with a clamping gear ring (508). The left side of the clamping gear ring (508) is rotatably connected to the right side of the mounting side plate (102) via a rotating shaft. The right side of the mounting block one (501) is fixedly connected to the left side of the mounting side plate (102). The bottom of the mounting block two (506) is fixedly connected to the top of the mounting side plate (102). The ratchet (502) is adapted to the pawl (405).

2. The circular device for water conservancy pipelines according to claim 1, characterized in that: The bottom of the mounting base plate (101) is fixedly connected to a plurality of support legs (103), and the bottom end of the support legs (103) is fixedly connected to a caster wheel (104).

3. The circular device for water conservancy pipelines according to claim 1, characterized in that: The mounting base plate (101) has a mounting groove (105) on the front of its upper surface. The inner side of the mounting groove (105) is rotatably connected to a transverse screw (106) via a rotating shaft. The outer side wall of the transverse screw (106) is threadedly connected to a moving block (107). The moving block (107) is slidably connected to the mounting groove (105). The right end of the transverse screw (106) extends through to the right side of the mounting base plate (101) and is fixedly connected to a knob (108).

4. A circular device for water conservancy pipelines according to claim 3, characterized in that: An installation groove two (109) is provided on the upper surface of the mounting base plate (101) and behind the mounting groove one (105). A guide rod (110) is fixedly connected inside the mounting groove two (109), and a moving block two (111) is slidably connected to the outer wall of the guide rod (110).

5. A circular device for water conservancy pipelines according to claim 1, characterized in that: Multiple extrusion cylinders (207) are fixedly connected to the outer wall of the extrusion rod (206). The moving frame (204) is located on the side close to the extrusion rod (206) and is fixedly connected to the right side of the multiple extrusion cylinders (207) with wedge-shaped pressure blocks (208). Multiple springs (209) are fixedly connected between the moving frame (204) and the fixing strip (203).

6. A circular device for water conservancy pipelines according to claim 1, characterized in that: The drive mechanism (3) includes a vertical plate (301), the bottom of which is fixedly connected to the left side of the upper surface of the mounting base plate (101), and a plurality of hydraulic cylinders (302) are fixedly connected to the right side of the vertical plate (301). The output ends of the plurality of hydraulic cylinders (302) are fixedly connected to a push plate (303).

7. A circular device for water conservancy pipelines according to claim 4, characterized in that: The abutting mechanism (6) includes a U-shaped rod (601). The bottom ends of the U-shaped rod (601) are fixedly connected to the tops of the first movable block (107) and the second movable block (111), respectively. The top of the U-shaped rod (601) is provided with multiple through movable slots (602). A rotating rod (603) is rotatably connected to the interior of the multiple movable slots (602) through a rotating shaft. The outer walls of the multiple rotating rods (603) are located in the multiple movable slots. The inner side of (602) is integrally formed with a two-way screw groove (604). The outer wall of the two-way screw groove (604) is threaded with two moving rods (605). The bottom end of the moving rod (605) is connected with an arc-shaped clamp rod (606) for a specified function. Multiple balls (607) are embedded and installed on the left side of the arc-shaped clamp rod (606). The front end of the rotating rod (603) extends through to the front of the U-shaped rod (601) and is fixedly connected with a knob (608).

Images