A corrosion-resistant concentric pipe connector

Abstract

This application relates to the field of pipe connection technology, and in particular to a corrosion-resistant concentric pipe connector, including a support assembly, an adjustment assembly, a fixing assembly, and a connecting assembly. The support assembly includes a support plate; the adjustment assembly includes two adjustment rods, one end of which is slidably connected to the support plate; the fixing assembly includes two pushers for fixing the pipe; the connecting assembly includes two plug-in members, each corresponding to a pipe, and each plug-in member includes a connecting ring and two plug-in rings. The connecting ring is coaxially fixed to the pipe end, and the two plug-in rings are integrally coaxially located on the side of the connecting ring away from the pipe. The two plug-in rings are distributed from the pipe axis toward the side away from the pipe axis, with the plug-in ring closer to the pipe axis being the inner ring and the plug-in ring farther from the pipe axis being the outer ring. A plug-in gap is left between the two plug-in rings for the outer ring on another pipe to be plugged in, and the longitudinal section of the plug-in ring is wavy. This application has the effect of improving the convenience of pipe connection.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipe connection, in particular to a pipe fitting concentric head connecting piece capable of preventing corrosion. BACKGROUND

[0002] In the pipeline engineering and fluid transmission system, pipe fitting connection technology is always an important factor to ensure the normal operation of the whole system. In recent years, with the acceleration of industrialization process and the continuous improvement of technical level, industrial pipeline systems have been widely used in many industries such as chemical industry, petroleum industry and shipbuilding. The pipe connection not only relates to the stability of the system, but also directly affects the production efficiency and safety. Therefore, the research and development of efficient pipe connection technology are of great significance to promote the modernization and automation of industrial production.

[0003] At present, the pipe fitting connection methods commonly used in the industry mainly include flange connection, welding connection and threaded connection. The flange connection fixes two pipe fittings together through the bolts on the flange plate, which is suitable for the connection of large diameter pipelines. The welding connection permanently connects two pipe fittings together by using welding process, which is suitable for occasions requiring high strength connection. The threaded connection processes threads on both ends of the pipe fitting and realizes connection through screwing, which is suitable for quick connection of small diameter pipelines. In addition, there are some special connectors, such as sleeve joints and quick plug joints. These connectors are usually designed with specific locking mechanisms and can realize quick connection and disassembly without using tools.

[0004] For the above related technologies, the flange connection needs a larger installation space and a longer assembly time, and in the case of frequent disassembly and assembly, it is easy to cause sealing failure. Although the welding connection has high strength, once the welding point has a problem, the maintenance cost is high. Although the threaded connection is simple to operate, it is difficult to ensure the coaxiality of the pipe fitting during the connection process, which is easy to cause leakage. These problems seriously affect the reliability and service life of the existing connection technology in some special application scenarios. Therefore, how to effectively improve the convenience of pipe fitting connection is still a technical problem to be solved. SUMMARY

[0005] In order to improve the convenience of pipe fitting connection, the application provides a pipe fitting concentric head connecting piece capable of preventing corrosion.

[0006] The pipe fitting concentric head connecting piece capable of preventing corrosion provided by the application adopts the following technical scheme:

[0007] A corrosion-resistant concentric pipe fitting includes a support assembly, an adjustment assembly, a fixing assembly, and a connecting assembly. The support assembly includes a support plate, the direction of which is parallel to the axial direction of the pipe. The adjustment assembly is located on the side of the support plate closer to the pipe and includes two adjustment rods. The adjustment rods are perpendicular to the support plate, one end of which is slidably connected to the support plate, and the other end faces the pipe. The two adjustment rods can move towards or away from each other.

[0008] The fixing component includes two pushing members, which are connected to the adjusting rods one-to-one. The pushing members are used to fix the pipes. The connecting component includes two plug-in members, which are connected to the pipes one-to-one. The two plug-in members are located on the side of the two pipes that are close to each other. Each plug-in member includes a connecting ring and two plug-in rings. The connecting ring is coaxially fixed to the port of the pipe. The two plug-in rings are integrally coaxially located on the side of the connecting ring away from the pipe. The two plug-in rings are distributed from the pipe axis toward the side away from the pipe axis. The plug-in ring closer to the pipe axis is the inner ring, and the plug-in ring away from the pipe axis is the outer ring. There is a plug-in gap between the two plug-in rings for the outer ring on another pipe to be plugged in. The longitudinal section of the plug-in ring is wavy.

[0009] By adopting the above technical solution, when connecting two pipelines, firstly, the corrosion-resistant concentric connector is moved to a suitable position. Then, two adjusting rods are moved to appropriate positions. According to the connection requirements, the two pipelines to be connected are fixed at suitable locations using two pushing components. Afterwards, the positions of the adjusting rods are adjusted again, and the plug fittings on the two pipelines are inserted. This corrosion-resistant concentric connector enables efficient and reliable pipeline connections. The design of the adjusting rods ensures that the connector can be flexibly adjusted in different positions to adapt to various installation needs, thus improving the connector's applicability. The corrugated plug ring design of the plug fitting effectively increases the contact area and improves sealing performance. Simultaneously, the cooperation of the inner and outer rings achieves precise pipe alignment, reducing connection errors and improving connection reliability. Through the above technical means, this corrosion-resistant concentric connector significantly improves the convenience, stability, and reliability of pipeline connections, making it suitable for pipeline connection needs under various complex working conditions.

[0010] In one specific implementation, the fixing assembly further includes a fixing plate, fasteners, and two rotating parts. The fixing plate is connected to one of the adjusting rods and is arranged parallel to the support plate. The fasteners include two fastening plates and a vertical plate. The fastening plate closest to the support plate is connected to the adjusting rod. The two fastening plates are distributed in a direction perpendicular to the support plate. The fastening plates are arc-shaped plates, and the openings of the two fastening plates face each other. The vertical plate is arranged from one fastening plate to the other fastening plate and is connected to the fastening plate.

[0011] The pushing component includes two first arc plates. The two first arc plates near the fixed plate are connected to the fixed plate and used to clamp the pipe. The two first arc plates near the vertical plate are connected to the vertical plate and used to clamp the pipe. The circular areas formed by the two first arc plates near the fixed plate and the circular areas formed by the two first arc plates near the vertical plate are coaxially arranged. The first arc plates near the vertical plate are rotatably connected to the fastening plate. The rotating component is connected to the fastening plate in a one-to-one correspondence. The rotating component is connected to the first arc plates to drive the first arc plates to rotate around the pipe axis.

[0012] By adopting the above technical solution, the corrosion-resistant concentric pipe fitting can achieve efficient and reliable connection of pipes of different diameters and shapes; the design of the fixing plate, fasteners and rotating parts can ensure the stability and concentricity of the pipe during the connection process; the fixing plate and the support plate are set in parallel to ensure the positioning accuracy of the pipe during the fixing process; the fasteners include two fastening plates and a vertical plate, which can firmly clamp the pipe and prevent displacement during the connection process. The rotating component drives the first arc plate to rotate around the pipe axis, facilitating pipe position adjustment and ensuring pipe coaxiality. The pushing component includes two first arc plates, connected to the fixed plate and the vertical plate respectively, which clamp and fix the pipe. The circular areas formed by the two first arc plates near the fixed plate and the circular areas formed by the two first arc plates near the vertical plate are coaxially arranged, ensuring pipe concentricity during clamping. The first arc plate near the vertical plate is rotatably connected to the fastening plate, allowing the pipe position to be adjusted via the rotating component, improving connection accuracy. This technical solution effectively improves the convenience and reliability of pipe connection through a multi-level fixing and adjustment mechanism, and is particularly suitable for applications requiring frequent disassembly and assembly and high-precision connections.

[0013] In one specific implementation, the rotating component includes an external gear ring, a rotary motor, and a gear. The external gear ring is arc-shaped and fixed to a first arc plate near the fastening plate. The inner wall of the external gear ring fits against the outer wall of the first arc plate. A through groove is provided on the fastening plate for the external gear ring to rotate. The housing of the rotary motor is fixed to the fastening plate. The output shaft of the rotary motor is coaxially fixed to the gear by a key connection. One side of the gear extends into the through groove and meshes with the external gear ring.

[0014] By adopting the above technical solution, the rotating component can drive the first arc plate to rotate around the pipe axis, thereby achieving fine-tuning of the pipe angle and ensuring precise alignment of the two pipes during connection, improving connection accuracy and reliability. Specifically, the tight fit between the external gear ring and the first arc plate, along with the precise control of the rotary motor, allows the first arc plate to be finely adjusted in angle when needed, avoiding connection failure or leakage problems caused by pipe misalignment. Furthermore, this design also improves the flexibility of the connection process, adapting to connection needs in different scenarios.

[0015] In one specific implementation, a guiding assembly is also included, comprising a guiding cylinder and two magnets. The guiding cylinder is oriented in the same direction as the length of the pipe. The cylinder body of the guiding cylinder is connected to the adjusting rod, and the piston rod of the guiding cylinder faces the fixed plate. The piston rod of the guiding cylinder is connected to one of the magnets, and the other magnet is connected to the fixed plate. When the two pipes are connected, the guiding cylinder drives the magnets to move, causing the two magnets to attract each other.

[0016] By adopting the above technical solution, the guiding component can precisely control the relative position of the two pipes, ensuring that they remain concentric when connected. Specifically, the piston rod of the guiding cylinder drives the magnet to move, causing the two magnets to attract each other, thereby achieving precise guidance of the pipes. This design not only improves the accuracy of pipe connection, but also significantly reduces the risk of leakage caused by misalignment, and enhances the reliability of the connection.

[0017] In one specific implementation, the fixing component further includes a sliding member, wherein the two first arc plates near the fixing plate are slidably connected to the fixing plate, and the two first arc plates move toward each other or away from each other. The sliding member is connected to the fixing plate and to the two first arc plates to drive the two first arc plates to move.

[0018] The fastener further includes a lifting source and an adjusting cylinder. The lifting source is connected to the adjusting rod and to the fastening plate near the support plate. The first arc plate near the vertical plate and the support plate is connected to the vertical plate. The first arc plate near the vertical plate and away from the support plate is slidably connected to the vertical plate. The cylinder body of the adjusting cylinder is fixed to the vertical plate. The piston rod of the adjusting cylinder faces away from the support plate. The adjusting cylinder is connected to the sliding first arc plate.

[0019] By adopting the above technical solution, the two first arc plates can move towards or away from each other, thereby adapting to pipes of different diameters and improving the applicability and flexibility of the device. The sliding component is connected to the fixed plate and the two first arc plates, enabling precise movement of the two first arc plates to ensure the coaxiality of the pipe during clamping and avoid leakage problems caused by improper clamping. The lifting source is connected to the adjusting rod and the fastening plate near the support plate, allowing adjustment of the height of the fastening plate to adapt to pipe connection requirements of different heights and also to ensure the coaxiality of the pipe connection. By adjusting the extension and retraction of the cylinder, precise control of the first arc plates is achieved, ensuring stable clamping and accurate positioning of the pipe. Through the synergistic effect of the sliding component and the adjusting cylinder, flexible adjustment and precise positioning of the first arc plates are achieved, improving the reliability, stability, and flexibility of the pipe connection.

[0020] In one specific implementation, the fixing assembly further includes eight rotating members, which are divided into four groups. Each group of rotating members corresponds to one of the first arc plates. Two rotating members on the same first arc plate are located at one end of the first arc plate. Each rotating member includes a clamping rod. Each end of the first arc plate has a receiving groove for accommodating the clamping rod. The clamping rod is an L-shaped rod, and the corner of the clamping rod is located in the receiving groove. The clamping rod is rotatably connected to the first arc plate.

[0021] By adopting the above technical solution, the design of the clamping rod allows this corrosion-resistant concentric connector to adapt to pipes of different shapes, such as rectangular and circular pipes. Specifically, the L-shaped design of the clamping rod allows it to rotate within the receiving groove, thus enabling flexible adjustment according to the shape of the pipe. When clamping a rectangular pipe, the clamping rod can rotate to align with the corner of the rectangular pipe, ensuring a secure clamping. When clamping a circular pipe, the clamping rod can rotate into the receiving groove, where it effectively clamps the circular pipe through the cooperation of the first arc plate. This design improves the versatility and flexibility of the connector, reduces the need to replace connectors due to different pipe shapes, and enhances work efficiency and connection reliability.

[0022] In one specific implementation, the rotating component further includes a rotating rod, a ratchet, and a pawl. The rotating rod is oriented in the same direction as the length of the pipe. The rotating rod passes through the first arc plate, extends into the receiving groove, and is fixed to the clamping rod. The rotating rod is rotatably connected to the first arc plate. The ratchet is coaxially fixed to one end of the rotating rod located outside the receiving groove. The pawl is close to the ratchet. One end of the pawl is elastically rotatably connected to the first arc plate, and the other end can extend into the tooth groove of the ratchet.

[0023] By adopting the above technical solution, precise control and fixation of the clamping rod are achieved. Specifically, the rotating rod design allows the clamping rod to rotate freely within the receiving groove of the first arc plate, thus adapting to pipes of different shapes and sizes. The combined use of the ratchet and pawl ensures that the clamping rod is firmly fixed after being adjusted to the appropriate position, preventing loosening due to external vibration or force during pipe connection, thereby improving the stability and reliability of the connection. Furthermore, this design simplifies the operation process, reduces the need for manual intervention, and improves work efficiency.

[0024] In one specific implementation, the connecting assembly further includes a placement rod, a placement plate, and two connectors. One end of the placement rod is connected to the support plate, and the other end is fixed to the placement plate. The placement plate is parallel to the support plate. Each connector corresponds to a pipe. Each connector includes a sliding rod, two guide plates, two pushing cylinders, and two second arc plates. The sliding rod is slidably connected to the placement plate. The two sliding rods move towards or away from each other. The sliding rod is horizontally positioned, and its direction is perpendicular to the length direction of the pipe. Both guide plates are fixed to both ends of the sliding rod and are parallel to each other. Both pushing cylinders are located between the two guide plates and correspond to each guide plate. The cylinder body of the pushing cylinder is fixed to the guide plate, and the piston rod of the pushing cylinder faces the other guide plate. The piston rod of the pushing cylinder is fixed to the second arc plate, and the two second arc plates can clamp the pipe.

[0025] By adopting the above technical solution, the design of the placement rod and placement plate allows the connector to be firmly installed on the support plate, ensuring the stability and accuracy of the connector. The sliding rod can slide on the placement plate, thereby achieving adaptive adjustment of the pipe at different positions and ensuring precise alignment of the pipe. Driven by the cylinder, the two second arc plates can tightly clamp the pipe, ensuring the firmness and reliability of the connection. This design not only prevents pipe displacement during the connection process but also improves the stability of the connection, avoiding loosening caused by external vibration or pressure. The combined design of the sliding rod and guide plate allows the connector to be flexibly adjusted according to actual needs, adapting to pipes of different diameters and lengths. At the same time, the bidirectional driving capability of the cylinder allows the second arc plates to be fine-tuned as they move closer or further apart, further improving the clamping accuracy and applicability. This connection assembly, through its precise positioning and firm clamping design, significantly improves the reliability and stability of pipe connections and is suitable for various pipe connection scenarios.

[0026] In one specific implementation, the outer wall of the connecting ring is flush with the outer wall of the pipe, and the inner wall of the connecting ring is flush with the inner wall of the pipe. The outer ring located in the insertion gap and the outer wall of the connecting ring to which it is fixed form a placement area for placing an outer ring on another pipe. The outer wall of the outer ring not located in the insertion gap is flush with the outer wall of the pipe. The inner ring located in the insertion gap and the inner wall of the connecting ring to which it is fixed form a receiving area for placing an inner ring on another pipe. The inner wall of the inner ring not located in the insertion gap is flush with the inner wall of the pipe.

[0027] By adopting the above technical solution, the inner and outer walls of the connecting ring are flush with the inner and outer walls of the pipe, respectively, ensuring the consistency of the appearance of the connected pipe and the unobstructed flow of the internal channel. The placement area formed by the outer ring and the outer wall of the connecting ring located in the insertion gap, and the receiving area formed by the inner ring and the inner wall of the connecting ring located in the insertion gap, enable the two pipes to be precisely aligned during connection, avoiding misalignment and leakage, and improving the reliability of the connection. At the same time, the outer ring and inner ring not located in the insertion gap are flush with the inner and outer walls of the pipe, further enhancing the integrity and aesthetics of the connection.

[0028] In one specific implementation, the connector further includes a seal located in the insertion gap between two insertion rings on one of the pipes, the seal being fixed to the insertion rings.

[0029] By adopting the above technical solution, the sealing element in the connector can effectively improve the sealing performance of the pipe connection and be fixed with the plug ring, ensuring tight contact when the two pipes are connected and preventing fluid leakage.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. This corrosion-resistant concentric pipe connector enables efficient and reliable pipe connections. The adjustable rod design allows for flexible adjustment in different positions, adapting to various installation needs and expanding its applicability. The corrugated plug ring design effectively increases the contact area and improves sealing performance. Simultaneously, the cooperation of the inner and outer rings achieves precise pipe alignment, reducing connection errors and improving reliability. Through these technical means, this corrosion-resistant concentric pipe connector significantly enhances the convenience, stability, and reliability of pipe connections, making it suitable for various complex working conditions.

[0032] 2. The designed corrosion-resistant concentric pipe connector, through the design of a fixed plate, fasteners, and rotating parts, ensures the stability and concentricity of the pipeline during the connection process. The first arc plate near the vertical plate is rotatably connected to the fastening plate, allowing the position of the pipeline to be adjusted by the rotating parts, thus improving the accuracy of the connection. This technical solution effectively improves the convenience and reliability of pipeline connection through a multi-level fixing and adjustment mechanism, and is particularly suitable for application scenarios that require frequent disassembly and assembly and high-precision connection.

[0033] 3. The designed corrosion-resistant concentric connector for the pipe fittings enables precise control and fixation of the clamping rod. Specifically, the rotating rod design allows the clamping rod to rotate freely within the receiving groove of the first arc plate, thus adapting to pipes of different shapes and sizes. The combined use of ratchet and pawl ensures that the clamping rod is firmly fixed after being adjusted to the appropriate position, preventing loosening due to external vibration or force during pipe connection, thereby improving the stability and reliability of the connection. Furthermore, this design simplifies the operation process, reduces the need for manual intervention, and improves work efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure from the first perspective in this embodiment.

[0035] Figure 2 This is a schematic diagram of the structure of the adjusting component and the fixing component in this embodiment.

[0036] Figure 3 This is a schematic diagram of the fastener and rotating component in this embodiment.

[0037] Figure 4 This is a schematic diagram of the rotating component and the rotating part in this embodiment.

[0038] Figure 5 yes Figure 4 A magnified view of A in the middle.

[0039] Figure 6This is a schematic diagram of the overall structure from the second perspective in this embodiment.

[0040] Figure 7 This is a schematic diagram of the overall structure from the third perspective in this embodiment.

[0041] Figure 8 This is a schematic diagram of the connector structure in this embodiment.

[0042] Figure 9 This is a schematic diagram of the connector and seal in this embodiment.

[0043] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Support plate; 111. Slide groove; 12. Support rod; 2. Adjustment assembly; 21. Adjusting component; 211. First dual-head motor; 212. First screw; 213. Slider; 22. Adjusting rod; 3. Fixing assembly; 31. Fixing plate; 311. Slide groove; 32. Slide component; 321. Second dual-head motor; 322. Second screw; 33. Fastener; 331. Lifting source; 332. Fastening plate; 3321. Through groove; 333. Vertical plate; 334. Adjusting cylinder; 34. Pushing component; 341. Pushing seat; 342. Pushing rod; 343. First arc plate; 3431. Receiving groove 35. Rotating component; 351. External gear ring; 352. Rotary motor; 353. Gear; 36. Rotating component; 361. Clamping rod; 362. Rotating rod; 363. Ratchet; 364. Pawl; 4. Guide assembly; 41. Guide cylinder; 42. Guide rod; 43. Magnet; 5. Connecting assembly; 51. Placement rod; 52. Placement plate; 521. Placement slot; 53. Connector; 531. Sliding rod; 532. Guide plate; 533. Push cylinder; 534. Second arc plate; 535. Hinge plate; 54. Insertion component; 541. Connecting ring; 5411. Sealing ring; 542. Insertion ring; 55. Seal; 6. Pipe. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0045] This application discloses a corrosion-resistant concentric pipe connector.

[0046] Reference Figure 1 and Figure 2 A corrosion-resistant concentric pipe fitting includes a support component 1, an adjustment component 2, and a fixing component 3. The adjustment component 2 is mounted on the support component 1, and the fixing component 3 is mounted on the adjustment component 2.

[0047] Reference Figure 1The support assembly 1 includes a support plate 11 and multiple support rods 12. The support plate 11 is horizontally arranged, and the direction of the support plate 11 is consistent with the length direction of the pipe 6. The multiple support rods 12 are all located on one side of the support plate 11. In this embodiment, there are four support rods 12, which are arranged in a matrix. The support rods 12 are perpendicular to the support plate 11. One end of the support rod 12 is welded to the support plate 11, and the other end is stably connected to a designated position. The support rods 12 support the support plate 11.

[0048] Reference Figure 1 and Figure 2 The adjusting component 2 can be located on the side of the support plate 11 near the support rod 12, or on the side of the support plate 11 away from the support rod 12. In this embodiment, the adjusting component 2 is located on the side of the support plate 11 near the support rod 12. The adjusting component 2 includes an adjusting member 21 and two adjusting rods 22. A groove 111 is provided on the side of the support plate 11 near the support rod 12, and the direction of the groove 111 is consistent with the length direction of the pipe 6. The adjusting member 21 includes a first double-headed motor 211, two first screws 212, and two sliders 213. The first double-headed motor 211 is located in the middle of the groove 111. The housing of the first double-headed motor 211 is fixedly connected to the support plate 11 by screws. Both first screws 212 are located in the groove 111. Two first screws 212 are each close to one output shaft of the first dual-head motor 211. The setting direction of the first screws 212 is consistent with the setting direction of the slide groove 111. The output shaft of the first dual-head motor 211 is coaxially fixedly connected to one end of the first screws 212 through a coupling. The other end of the first screws 212 is rotatably connected to the support plate 11. The sliders 213 correspond one-to-one with the first screws 212, and the sliders 213 are threadedly connected to the first screws 212. The sliders 213 move along the length direction of the first screws 212. The adjusting rods 22 correspond one-to-one with the sliders 213. The adjusting rods 22 are set perpendicular to the support plate 11. One end of the adjusting rods 22 is welded to the sliders 213. The adjusting rods 22 move synchronously with the sliders 213.

[0049] Reference Figure 1 , Figure 2 and Figure 3The fixing component 3 includes a fixing plate 31, a sliding member 32, a fastener 33, two pushing members 34, and two rotating members 35. The fixing plate 31 corresponds to one of the adjusting rods 22, and the fixing plate 31 is welded to the end of the adjusting rod 22 away from the slider 213. The fixing plate 31 is horizontally arranged, and its setting direction is perpendicular to the length direction of the pipe 6. A sliding groove 311 is formed on the side of the fixing plate 31 away from the adjusting rod 22, and the setting direction of the sliding groove 311 is perpendicular to the length direction of the pipe 6. The sliding member 32 includes a second double-headed motor 321 and two second screws 322. The motor 321 is located in the middle of the sliding groove 311. The housing of the second dual-head motor 321 is fixedly connected to the fixing plate 31 by screws. Both second screws 322 are located in the sliding groove 311, and each of the two second screws 322 is close to one output shaft of the second dual-head motor 321. The setting direction of the second screws 322 is consistent with the setting direction of the sliding groove 111. The output shaft of the second dual-head motor 321 is coaxially fixedly connected to one end of the second screw 322 by a coupling. The other end of the second screw 322 is rotatably connected to the fixing plate 31. The second dual-head motor 321 drives the second screw 322 to rotate.

[0050] Reference Figure 1 and Figure 2 Fastener 33 corresponds to another adjusting rod 22. Fastener 33 includes a lifting source 331, two fastening plates 332, a vertical plate 333, and an adjusting cylinder 334. In this embodiment, the lifting source 331 is a lifting cylinder. The cylinder body of the lifting cylinder is fixedly connected to the end of the other adjusting rod 22 away from the support plate 11 by screws. The piston rod of the lifting cylinder faces the side away from the support plate 11. In this embodiment, the fastening plate 332 is arc-shaped. The two fastening plates 332 are distributed along the axis perpendicular to the pipe 6. The openings of the two fastening plates 332 face each other. The vertical plate 333 is set by one fastening plate 332 facing the other fastening plate 332. The adjusting cylinder 334 is set vertically. The cylinder body of the adjusting cylinder 334 is fixedly connected to the vertical plate 333 by screws. The piston rod of the adjusting cylinder 334 faces the side away from the support plate 11.

[0051] Reference Figure 1 , Figure 2 and Figure 3One of the pushers 34 corresponds to the second screw 322, and the other pusher 34 corresponds to the lifting cylinder. Each pusher 34 includes two push seats 341, two push rods 342, and two first arc plates 343. The two push seats 341 corresponding to the second screw 322 are located in the sliding groove 311 and are threadedly connected to one of the second screws 322. The push seats 341 slide along the length of the second screw 322. The two push seats 341 can move towards or away from each other. One of the push seats 341 corresponding to the lifting cylinder is welded to the top of the vertical plate 333. Another push seat 341 is welded to the piston rod of the adjusting cylinder 334. The push rod 342 corresponds one-to-one with the push seat 341. In this embodiment, the push rod 342 is an L-shaped rod. One end of the push rod 342 is welded to the push seat 341, and the other end is welded to the first arc plate 343. The piston rod of the lifting cylinder is welded to the push rod 342. The openings of the two first arc plates 343 are arranged opposite to each other, and the two first arc plates 343 can clamp and fix the pipe 6. The circular area formed by the two first arc plates 343 near the fixing plate 31 is coaxially arranged with the circular area formed by the two first arc plates 343 near the vertical plate 333.

[0052] Reference Figure 1 , Figure 3 and Figure 4 The rotating component 35 corresponds one-to-one with the fastening plate 332. The rotating component 35 includes an external gear ring 351, a rotary motor 352, and a gear 353. In this embodiment, the external gear ring 351 is arc-shaped and is fixedly connected to the first arc plate 343 near the fastening plate 332 by screws. The opening of the external gear ring 351 faces the side of the first arc plate 343, and the inner wall of the external gear ring 351 fits against the outer wall of the first arc plate 343. The fastening plate 332 has a hole for the external gear ring. The rotating through groove 3321 of 351, the housing of the rotary motor 352 is fixedly connected to the fastening plate 332 by screws, the output shaft of the rotary motor 352 and the gear 353 are coaxially fixedly connected by key connection, and one side of the gear 353 extends into the through groove 3321 and meshes with the outer gear ring 351, thereby driving the first arc plate 343 near the vertical plate 333 to rotate, which facilitates the adjustment of the position of the pipe 6 held by the two first arc plates 343 near the vertical plate 333.

[0053] Reference Figure 4 , Figure 5 and Figure 6The fixing component 3 also includes eight rotating parts 36, which are divided into four groups. Each group of rotating parts 36 corresponds to a first arc plate 343. Two rotating parts 36 on the same first arc plate 343 are located at one end of the first arc plate 343. For ease of description, one of the rotating parts 36 will be used. The rotating part 36 includes a clamping rod 361, a rotating rod 362, a ratchet 363, and a pawl 364. Each end of the first arc plate 343 has a receiving groove 3431 for accommodating the clamping rod 361. In this embodiment, the clamping rod 361 is an L-shaped rod, and the corner of the clamping rod 361 is located in the receiving groove 3431. The clamping rod 361 is rotatably connected to the first arc plate 343. When it is necessary to clamp the rectangular pipe 6, the operator rotates the clamping rod 361. At this time, the openings of the four clamping rods 361 face the space between the two first arc plates 343. Then, the distance between the two first arc plates 343 is adjusted by the second double-head motor 321 so that the clamping rod 361 fits with the corner of the rectangular pipe 6, and the rectangular pipe 6 can be clamped. When it is necessary to clamp the circular pipe 6, the operator rotates the clamping rod 361 to the receiving groove 3431. Following the above steps, the circular pipe 6 can be clamped by the two first arc plates 343.

[0054] Reference Figure 4 and Figure 5 The rotating rod 362 is set in the same direction as the length of the pipe 6. The rotating rod 362 passes through the first arc plate 343 and extends into the receiving groove 3431 and is welded to the clamping plate. The rotating rod 362 is rotatably connected to the first arc plate 343. The ratchet 363 is coaxially welded to the rotating rod 362 at the end outside the receiving groove 3431. The pawl 364 is close to the ratchet 363. One end of the pawl 364 is elastically rotatably connected to the first arc plate 343, and the other end can extend into the tooth groove of the ratchet 363, thereby fixing the ratchet 363. If the personnel need to rotate the clamping rod 361, they only need to turn the rotating rod 362. When the clamping rod 361 is rotated to the appropriate position, one end of the pawl 364 extends into the tooth groove of the ratchet 363 to fix the ratchet 363.

[0055] Reference Figure 6 A corrosion-resistant concentric pipe fitting also includes a guide component 4 and a connecting component 5. The guide component 4 is mounted on the fixing component 3, and the connecting component 5 is mounted on the guide component 4.

[0056] Reference Figure 6The guiding assembly 4 includes a guiding cylinder 41, a guiding rod 42, and two magnets 43. The guiding cylinder 41 is oriented in the same direction as the length of the pipe 6. The cylinder body of the guiding cylinder 41 is fixedly connected to the cylinder body of the lifting cylinder by screws. The piston rod of the guiding cylinder 41 faces the fixed plate 31. The piston rod of the guiding cylinder 41 is welded to one end of the guiding rod 42. The guiding rod 42 is oriented in the same direction as the length of the pipe 6. One magnet 43 is fixedly connected to the end of the guiding rod 42 away from the guiding cylinder 41 by screws. The other magnet 43 is fixedly connected to the fixed plate 31 by screws. When the two pipes 6 are connected, the guiding cylinder 41 drives the guiding rod 42 to move, causing the two magnets 43 to attract each other, thereby guiding the two pipes 6 and ensuring that the two pipes 6 are concentric.

[0057] Reference Figure 6 , Figure 7 and Figure 8 The connecting assembly 5 includes a placement rod 51, a placement plate 52, two connectors 53, and two plug-in connectors 54. The placement rod 51 is perpendicular to the support plate 11. One end of the placement rod 51 is fixedly connected to the housing of the first double-headed motor 211 by screws, and the other end is welded to the placement plate 52. The placement plate 52 is parallel to the support plate 11. The connectors 53 correspond one-to-one with the pipes 6. The connectors 53 include a sliding rod 531, two guide plates 532, two push cylinders 533, two second arc plates 534, and four hinge plates 535. The sliding rod 531 is slidably connected to the side of the placement plate 52 away from the placement rod 51. The two sliding rods 531 move toward or away from each other. The placement plate 52 has a placement groove 521 for the sliding rod 531 to slide. The sliding rod 531 is horizontally set, and the setting direction of the sliding rod 531 is perpendicular to the length direction of the pipe 6. Both guide plates 532 are welded to the sliding rod 531. At both ends, guide plates 532 and sliding rods 531 are perpendicularly arranged, and the two guide plates 532 are parallel. Two push cylinders 533 are located between the two guide plates 532. The push cylinders 533 correspond one-to-one with the guide plates 532. The cylinder body of the push cylinder 533 is fixedly connected to the guide plate 532 by screws. The piston rod of the push cylinder 533 faces the other guide plate 532, and the piston rod of the push cylinder 533 is welded to the second arc plate 534. The openings of the two second arc plates 534 are arranged opposite each other, and the two second arc plates 534 can clamp and fix the pipe 6. Four hinge plates 535 are located between the two first arc plates 343. The four hinge plates 535 are divided into two groups. The two groups of hinge plates 535 correspond one-to-one with the second arc plates 534. The two hinge plates 535 on the same second arc plate 534 are each located at one end of the second arc plate 534, and the hinge plates 535 are hinged to the second arc plate 534.

[0058] Reference Figure 7 and Figure 8Each connector 54 corresponds to a pipe 6. Both connectors 54 are located on the side of the two pipes 6 closest to each other. Each connector 54 includes a connecting ring 541 and two connecting rings 542. The connecting ring 541 is coaxially located at the port of the pipe 6. The outer wall of the connecting ring 541 is flush with the outer wall of the pipe 6, and the inner wall of the connecting ring 541 is flush with the inner wall of the pipe 6. The connecting ring 541 is fixedly connected to the pipe 6 by screws. A sealing ring 5411 is fixedly bonded to the side of the connecting ring 541 closest to the pipe 6, sealing the connection between the connecting ring 541 and the pipe 6. Both connecting rings 542 are located on the side of the connecting ring 541 furthest from the pipe 6, and are coaxially arranged with the connecting ring 541. The two connecting rings 542 are distributed from the axis of the pipe 6 towards the side furthest from the axis of the pipe 6. The connecting rings 542 are integrated with the connecting ring 541, and are located closer to the axis of the pipe 6. The insertion ring 542 is the inner ring, and the insertion ring 542 away from the axis of the pipe 6 is the outer ring. There is an insertion gap between the two insertion rings 542 for the insertion of the outer ring on another pipe 6. In this embodiment, the longitudinal section of the insertion ring 542 is wavy. When the outer ring on another pipe 6 is inserted into the insertion gap, the insertion rings 542 on the two pipes 6 can fit together. The outer ring located in the insertion gap and the outer wall of the fixed connecting ring 541 form a placement area for the outer ring on another pipe 6. The inner ring located in the insertion gap and the inner wall of the fixed connecting ring 541 form a receiving area for the inner ring on another pipe 6. In this embodiment, the connecting ring 541 and the insertion ring 542 can both be rectangular rings or both be circular rings. The connecting ring 541 and the insertion ring 542 can be adjusted and replaced according to the rectangular pipe 6 and the circular pipe 6 to be connected.

[0059] Reference Figure 8To ensure the corrosion resistance of the connector ring 542, on the one hand, an anti-corrosion layer can be applied to its surface. This layer is made of epoxy resin, which has excellent corrosion resistance and can effectively resist the erosion of various chemicals. The thickness of the anti-corrosion layer is 0.8 mm, providing sufficient protection without significantly increasing the weight and cost of the connector. Besides epoxy resin, other high-performance anti-corrosion coatings, such as polyurethane and fluorocarbon paint, can also be selected, as these materials also possess excellent corrosion resistance. On the other hand, the connector ring 542 can also be made of carbon steel, which is an economical and practical material. The material has high mechanical strength and good processing performance. However, carbon steel itself has poor corrosion resistance. Therefore, a zinc coating is added to the outer surface of the plug ring 542. The zinc coating has good cathodic protection and can effectively prevent corrosion of carbon steel. The zinc coating can be prepared by various processes such as electro-galvanizing, hot-dip galvanizing, or spray galvanizing. Electro-galvanizing is simple and low-cost, but the coating uniformity is poor. Hot-dip galvanizing is complex, but the coating uniformity is good and the corrosion resistance is better. Spray galvanizing is suitable for large or complex shaped parts. Choosing a suitable coating process can ensure the quality and performance of the zinc coating.

[0060] Reference Figure 8 and Figure 9 The connecting assembly 5 also includes a seal 55, which is located in the insertion gap between two plug rings 542 on one of the pipes 6. The seal 55 is a flexible sealing ring, and each side of the flexible sealing ring is fixedly bonded to one plug ring 542. The flexible sealing ring can seal the connection between the two plugs 54. The flexible sealing ring is made of fluororubber, which has excellent heat resistance, oil resistance and chemical resistance, and can maintain excellent sealing performance in extreme environments. The sealing ring can also be made of silicone rubber or EPDM (ethylene propylene diene monomer rubber). Both of these materials also have good temperature resistance and weather resistance, are suitable for different applications, and can adapt to pipe interfaces of different sizes and shapes, improving the reliability and durability of the connection.

[0061] The implementation principle of the corrosion-resistant concentric pipe connector in this application embodiment is as follows: When it is necessary to connect two pipes 6, firstly, the corrosion-resistant concentric pipe connector 53 is moved to a suitable position, the adjustment component 2 is activated, and the adjustment component 2 moves the fixing component 3 to a suitable position. According to the connection requirements, a suitable position is selected on the two pipes 6 to be connected, and the pipes 6 are fixed by the two pushing components 34. Through personnel observation, the rotating component 35 is activated to adjust the pipes 6 connected to the fasteners 33. When the position is adjusted to a suitable position, the guide cylinder 41 in the guide component 4 is activated so that the two magnets 43 can attract each other. Then, the pipes 6 are further fixed by the two connecting components 53 in the connection component 5. Then, the adjustment component 2 is activated to connect the two plug-in components 54 on the pipes 6. After that, the personnel further seal and fix the connection of the two pipes 6.

[0062] When connector 53 is needed to fix pipe 6, firstly, when pipe 6 needs to be fixed, the push cylinder 533 is activated. The push cylinder 533 drives the second arc plate 534 to move away from each other. The operator moves the two sliding rods 531. Through observation, the operator moves the sliding rods 531 to a suitable position. Then, the two push cylinders 533 are activated. The push cylinders 533 can push the second arc plate 534 to move closer to each other, thereby fixing the two second arc plates 534 to pipe 6. Subsequently, when the adjusting component 2 drives pipe 6 to move, the sliding rods 531 slide in the through groove 3321 until the two connectors 54 are connected.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe fitting concentric end connector capable of being corrosion resistant, characterized by: The utility model provides a kind of pipe fixing device, including support component (1), adjusting component (2), fixed component (3) and connecting component (5), the support component (1) includes support plate (11), the setting direction of support plate (11) is parallel with the axial direction of pipeline (6);The adjusting component (2) is located on the side of support plate (11) close to pipeline (6), the adjusting component (2) includes two adjusting rods (22), adjusting rod (22) is vertically arranged with support plate (11), one end of adjusting rod (22) is slidably connected with support plate (11), the other end is towards the side of pipeline (6), two adjusting rods (22) are towards each other close or far side movement;The fixed component (3) includes two pushers (34), the pusher (34) is connected with adjusting rod (22) one by one, the pusher (34) is used to fix pipeline (6), the connecting component (5) includes two inserters (54), the inserter (54) is one by one corresponding with pipeline (6), two inserters (54) are located on the side of two pipelines (6) close to each other, the inserter (54) includes connecting ring (541) and two insert rings (542), the connecting ring (541) is coaxially fixed to the port of pipeline (6), two insert rings (542) are integrally coaxially arranged on the side of connecting ring (541) away from pipeline (6), two insert rings (542) are distributed by pipeline (6) axis towards the side away from pipeline (6) axis, the inserter (542) close to pipeline (6) axis is inner ring, the inserter (542) away from pipeline (6) axis is outer ring, the insert gap for the outer ring of another pipeline (6) is left between two insert rings (542), the longitudinal section of inserter (542) is wavy; The fixed component (3) further includes fixed plate (31), fastener (33) and two rotating parts (35), the fixed plate (31) is connected with one of adjusting rod (22), the fixed plate (31) is arranged in parallel with support plate (11), the fastener (33) includes two fastening plates (332) and a vertical plate (333), the fastening plate (332) close to support plate (11) is connected with adjusting rod (22), two fastening plates (332) are distributed along the direction perpendicular to support plate (11), the fastening plate (332) is circular arc plate, the opening of two fastening plates (332) is towards each other close side, the vertical plate (333) is arranged by one fastening plate (332) towards another fastening plate (332), the vertical plate (333) is connected with fastening plate (332). The pushing member (34) comprises two first circular arc plates (343), two first circular arc plates (343) close to the fixed plate (31) are connected with the fixed plate (31) and used for clamping the pipeline (6), two first circular arc plates (343) close to the vertical plate (333) are connected with the vertical plate (333) and used for clamping the pipeline (6), the circular area formed by the two first circular arc plates (343) close to the fixed plate (31) is coaxially arranged with the circular area formed by the two first circular arc plates (343) close to the vertical plate (333), the first circular arc plate (343) close to the vertical plate (333) is rotationally connected to the fastening plate (332), the rotating member (35) is connected with the fastening plate (332) one by one, the rotating member (35) is connected with the first circular arc plate (343) to drive the first circular arc plate (343) to rotate around the pipeline (6) axis.

2. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 1 characterized by: The rotating member (35) comprises an outer tooth ring (351), a rotating motor (352) and a gear (353), the outer tooth ring (351) is in the shape of a circular arc, the outer tooth ring (351) is fixed to the first circular arc plate (343) close to the fastening plate (332), the inner wall of the outer tooth ring (351) is attached to the outer wall of the first circular arc plate (343), a through groove (3321) for the rotation of the outer tooth ring (351) is formed on the fastening plate (332), the shell of the rotating motor (352) is fixed to the fastening plate (332), the output shaft of the rotating motor (352) is coaxially fixed with the gear (353) through a key connection, one side of the gear (353) extends into the through groove (3321) and is engaged with the outer tooth ring (351).

3. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 1 characterized by: Further comprising a guide assembly (4), the guide assembly (4) comprises a guide cylinder (41) and two magnets (43), the setting direction of the guide cylinder (41) is consistent with the length direction of the pipeline (6), the cylinder body of the guide cylinder (41) is connected with the adjusting rod (22), the piston rod of the guide cylinder (41) faces the fixed plate (31), the piston rod of the guide cylinder (41) is connected with one of the magnets (43), the other magnet (43) is connected to the fixed plate (31), when two pipelines (6) are connected, the guide cylinder (41) drives the magnets (43) to move, so that the two magnets (43) are magnetically attracted.

4. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 1 characterized by: The fixing assembly (3) further comprises a sliding piece (32), the two first arc plates (343) close to the fixing plate (31) are slidingly connected to the fixing plate (31), the two first arc plates (343) move towards or away from each other, the sliding piece (32) is connected to the fixing plate (31), the sliding piece (32) is connected to the two first arc plates (343) to drive the two first arc plates (343) to move; the fastener (33) further comprises a lifting source (331) and an adjusting cylinder (334), the lifting source (331) is connected to the adjusting rod (22), the lifting source (331) is connected to the fastening plate (332) close to the support plate (11), the first arc plate (343) close to the vertical plate (333) and close to the support plate (11) is connected to the vertical plate (333), the first arc plate (343) close to the vertical plate (333) and away from the support plate (11) is slidingly connected to the vertical plate (333), the cylinder body of the adjusting cylinder (334) is fixed to the vertical plate (333), the piston rod of the adjusting cylinder (334) is away from the support plate (11), and the adjusting cylinder (334) is connected with the sliding first arc plate (343).

5. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 4 wherein: The fixing assembly (3) further comprises eight rotating pieces (36), the eight rotating pieces (36) are divided into four groups, each group of rotating pieces (36) corresponds to one first arc plate (343), and two rotating pieces (36) located on the same first arc plate (343) are located at one end of the first arc plate (343), the rotating piece (36) comprises a clamping rod (361), and one containing groove (3431) for containing the clamping rod (361) is formed at each end of the first arc plate (343), the clamping rod (361) is an L-shaped rod, the corner of the clamping rod (361) is located in the containing groove (3431), and the clamping rod (361) is rotationally connected to the first arc plate (343).

6. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 5 wherein: The rotating piece (36) further comprises a rotating rod (362), a ratchet (363) and a pawl (364), the setting direction of the rotating rod (362) is consistent with the length direction of the pipeline (6), the rotating rod (362) is provided in the first arc plate (343) and extends into the containing groove (3431) and is fixed with the clamping rod (361), the rotating rod (362) is rotationally connected to the first arc plate (343), the ratchet (363) is coaxially fixed to one end of the rotating rod (362) located outside the containing groove (3431), the pawl (364) is close to the ratchet (363), one end of the pawl (364) is elastically rotationally connected to the first arc plate (343), and the other end can extend into the tooth groove of the ratchet (363).

7. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 1 characterized by: The connecting assembly (5) further comprises a placing rod (51), a placing plate (52) and two connecting pieces (53), one end of the placing rod (51) is connected with the supporting plate (11), the other end is fixed with the placing plate (52), the placing plate (52) is parallel with the supporting plate (11), the connecting piece (53) corresponds to the pipeline (6) one by one, the connecting piece (53) comprises a sliding rod (531), two guide plates (532), two push cylinders (533) and two second arc plates (534), the sliding rod (531) is slidingly connected to the placing plate (52), the two sliding rods (531) move towards or away from each other, the sliding rod (531) is horizontally arranged, the arrangement direction of the sliding rod (531) is perpendicular to the length direction of the pipeline (6), the two guide plates (532) are both fixed to the two ends of the sliding rod (531), the two guide plates (532) are arranged in parallel, the two push cylinders (533) are both located between the two guide plates (532), the push cylinder (533) corresponds to the guide plate (532) one by one, the cylinder body of the push cylinder (533) is fixed with the guide plate (532), the piston rod of the push cylinder (533) faces the other guide plate (532), the piston rod of the push cylinder (533) is fixed with the second arc plate (534), and the two second arc plates (534) can clamp the pipeline (6).

8. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 1 characterized by: The outer wall of the connecting ring (541) is flush with the outer wall of the pipeline (6), the inner wall of the connecting ring (541) is flush with the inner wall of the pipeline (6), the outer ring located in the insertion gap forms a placing area for the outer ring on another pipeline (6) fixed with the outer wall of the connecting ring (541), the outer wall of the outer ring not located in the insertion gap is flush with the outer wall of the pipeline (6), and the inner ring located in the insertion gap forms a containing area for the inner ring on another pipeline (6) fixed with the inner wall of the connecting ring (541).

9. A corrosion resistant pipe fitting concentric reducer coupling in accordance with claim 7 wherein: The connecting piece (53) further comprises a sealing piece (55), the sealing piece (55) is located in the insertion gap between the two insertion rings (542) on one of the pipelines (6), and the sealing piece (55) is fixed with the insertion ring (542).

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