Butt joint device for power plant water supply pipeline connection

Abstract

The invention discloses a butt joint device for power plant water supply pipeline connection, and belongs to the technical field of pipeline butt joint, the butt joint device comprises two first hoop plates and two second hoop plates, the first hoop plates and the second hoop plates are detachably installed at the end positions of two pipelines respectively; a guide groove matched with the butt joint inner plate in a sliding mode is formed in the butt joint outer plate; the limiting mechanism is arranged on the second hoop plate; a first protective plate and a second protective plate are detachably arranged on the first hoop plate and the second hoop plate; according to the scheme, the device is installed at the corresponding positions of two pipelines, manual alignment is not needed, the butt joint outer plate or the butt joint inner plate can be driven to move through the limiting mechanism, and the welding effect and the butt joint efficiency are improved; the end openings of the pipelines are tightly aligned through the limiting mechanism, and the phenomena of gaps and dislocation are reduced; and a welded connector can be protected through the first protection plate and the second protection plate, the phenomena of deformation, cracks and the like caused by direct stress on the welded position are greatly avoided, and the welding quality of the pipeline is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline butt jointing, and more particularly to a butt jointing device for connecting water supply pipelines of a power plant. Background Art

[0002] The water supply pipeline of the power plant is one of the most important components in the power production process. In thermal power plants, nuclear power plants and some renewable energy power generation facilities, water is used as a working fluid or cooling medium. Some of the pipes are made of steel pipes, and multiple steel pipes need to be connected, mainly by welding at the joints. Usually, an electric hoist or crane is used to move the two ends of the welded pipes to the joints, and then the staff assists to align the two pipe joints, and then another staff member welds the joints.

[0003] However, at present, when two pipelines are aligned with the assistance of a crane and personnel, the two pipelines are not tight enough and gaps and misalignments are prone to occur, which will lead to problems such as leaking welds and large welds during welding, and the quality of pipeline butt welding is poor; multiple people are required to operate and constantly adjust the docking position, which is time-consuming and labor-intensive, with low docking efficiency and high construction costs; and there are no corresponding protective measures after the pipeline welding is completed, and the pipeline connection position is prone to deformation and cracks, which greatly affects the quality of pipeline docking.

[0004] Therefore, it is necessary to provide a docking device for connecting water supply pipelines in power plants to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a docking device for connecting water supply pipes in a power plant to solve the above technical problems.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A docking device for connecting water supply pipelines in a power plant, comprising:

[0008] The first hoop plate and the second hoop plate are each provided with two and are detachably installed at the end positions of the two pipes respectively;

[0009] The butt joint outer plate and the butt joint inner plate are respectively arranged on the first hoop plate and the second hoop plate, and the butt joint outer plate is provided with a guide groove which is slidably matched with the butt joint inner plate;

[0010] A limiting mechanism is provided on the second hoop plate, and is used to drive the butted outer plate and the butted inner plate to move closer to or farther from each other;

[0011] The first hoop plate and the second hoop plate are both detachably provided with a first guard plate and a second guard plate. A slot is provided on the first guard plate, and a connecting plug plate adapted to the slot is slidably connected inside the second hoop plate.

[0012] Furthermore, a first support plate and a second support plate are respectively arranged on the outer walls of the first hoop plate and the second hoop plate, and the butted outer plate and the butted inner plate are respectively connected to the first support plate and the second support plate.

[0013] Furthermore, the limiting mechanism includes:

[0014] A transmission seat is arranged on the second support plate, a transmission cavity is opened in the transmission seat, and a tooth plate is slidably connected in the transmission seat;

[0015] A transmission component, disposed in the transmission cavity, and used to drive the tooth plate to move;

[0016] A locking component is arranged on the tooth plate and is used to connect the tooth plate with the docking outer plate.

[0017] Furthermore, the transmission component includes:

[0018] The horizontal axis and the vertical axis are both rotatably connected in the transmission cavity, and the horizontal axis is provided with a worm gear and a gear meshing with the toothed plate;

[0019] A worm is arranged on the vertical shaft and meshes with the worm wheel.

[0020] Furthermore, the docking outer plate is provided with a limiting groove, and the positioning component:

[0021] The first elastic member has one end arranged on the tooth plate and the other end provided with a pull plate, the pull plate is provided with a locking rod, and the end of the locking rod movably passes through the tooth plate and is adapted to the limiting groove.

[0022] Furthermore, the inner side walls of the first hoop plate and the second hoop plate are provided with mounting grooves adapted to the first guard plate and the second guard plate, the mounting grooves are provided with mounting holes, the first guard plate and the second guard plate are provided with fixing blocks adapted to the mounting holes, the fixing blocks are elastically provided with mounting blocks, the first guard plate and the second guard plate are provided with linkage cavities inside, and the linkage cavities are provided with linkage components for driving the mounting blocks to move.

[0023] Furthermore, an inner groove slidably connected to the mounting block is provided in the fixing block, a second elastic member is provided between the mounting block and the inner wall of the inner groove, a first pull rope is provided at the inner end of the mounting block, and a channel communicating with the linkage cavity is provided in the fixing block.

[0024] Furthermore, the linkage component includes a third elastic member arranged on the inner wall of the linkage cavity, the other end of the third elastic member is provided with a pressure rod, one end of the pressure rod movably passes through the linkage cavity, the other end of the pressure rod is provided with a second pull rope, and the other end of the second pull rope is connected to the first pull rope.

[0025] Furthermore, one end of each of the first guard plate and the second guard plate is provided with an insert block, a sliding cavity is provided in the insert block, a stopper is slidably connected in the sliding cavity, a fourth elastic member is provided between the stopper and the inner wall of the sliding cavity, and the other end of each of the first guard plate and the second guard plate is provided with an insert hole matched with the insert block, and a limiting hole matched with the stopper is provided in the insert hole.

[0026] Furthermore, a push block is slidably connected in the limiting hole, a shift rod is provided on one side of the push block, the other end of the shift rod movably passes through the limiting hole and is provided with a push plate, and a fifth elastic member connected to the push plate is sleeved on the outside of the shift rod.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In this scheme, after the device is installed at the corresponding positions of the ends of the two pipes, the docking inner plate is inserted into the guide groove of the docking outer plate and moved, and no manual alignment is required subsequently. The docking outer plate or the docking inner plate can be driven to move by operating the limiting mechanism, so that the first hoop plate and the second hoop plate are close to each other, and finally the two pipes are moved close to each other; through the cooperation of the limiting mechanism, the docking outer plate and the docking inner plate, not only can the two pipes be accurately aligned without manual assistance and constant adjustment, a lot of labor and time are saved, and the welding effect and docking efficiency are greatly improved; and the limiting mechanism makes the two pipe ports closely and stably aligned, greatly reducing the gap and misalignment phenomenon, making welding more convenient and faster, while reducing the problems of leaking welding and large welds at the welding point, significantly improving the pipeline welding quality and the subsequent use effect of the pipeline, and can be widely promoted and used.

[0029] 2. In this solution, after the first hoop plate and the second hoop plate are removed from the pipeline, the first guard plate and the second guard plate are still fixed on the pipeline. The first guard plate and the second guard plate can protect the pipeline interface after welding, which greatly avoids the phenomenon that the welding part will be directly subjected to force and deform and crack after the first hoop plate and the second hoop plate are removed, and thus the middle welding position can be well protected, so that it can have enough time to cool and stabilize, which greatly improves the docking quality of the pipeline and has strong practicality. After the first hoop plate and the second hoop plate are removed from the welded pipeline, the other first guard plate and the second guard plate can be installed on them respectively, and then the next pipeline docking operation can be carried out, which can greatly improve the efficiency of pipeline docking and welding, and significantly improve the progress of pipeline construction.

[0030] 3. In this scheme, when the two first hoops or the two second hoops are fixedly sleeved on the pipe, the two first guard plates or the two second guard plates will be connected to each other, and at the same time, the connection between the first guard plate or the second guard plate and the first hoop plate or the second hoop plate will be released by the action of the linkage component. After that, after removing the first hoop plate or the second hoop plate, the first guard plate or the second guard plate will still remain on the pipe, and the detachment is convenient and simple, and no additional operation is required to connect and separate the first guard plate or the second guard plate. The structure is ingenious, saving a lot of time and steps, and is more conducive to the use of staff and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the state in which the docking device of the present invention is installed on two pipes;

[0032] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0033] Figure 3 It is a structural schematic diagram of the first hoop plate and the components thereon of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the second hoop plate and the components thereon of the present invention;

[0035] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0036] Figure 6 It is a schematic cross-sectional structural diagram of the transmission seat of the present invention;

[0037] Figure 7 A schematic structural diagram of a state in which the first hoop plate and the second hoop plate of the present invention are installed with the first guard plate and the second guard plate;

[0038] Figure 8 It is a schematic diagram of the structure of the state before two first guard plates of the present invention are connected;

[0039] Fig. 9 for Figure 8 The enlarged structural diagram at C in the middle;

[0040] Fig.10 It is a schematic diagram of the three-dimensional structure of the first guard plate and the second guard plate on two pipes of the present invention;

[0041] Fig.11 It is a schematic diagram of a partial cross-sectional structure after two first guard plates of the present invention are connected;

[0042] Fig.12 It is a schematic side view of a partially cutaway structure of the first guard plate of the present invention;

[0043] Fig.13 for Fig.12 The enlarged structural diagram at D in the middle;

[0044] Fig.14 for Fig.12 The enlarged structural diagram at E in the middle;

[0045] Fig.15 It is a schematic diagram of the state structure of the first guard plate and the second guard plate on the pipeline after the first hoop plate and the second hoop plate in the present invention are removed.

[0046] Description of the numbers in the figure:

[0047] 1. First hoop plate; 2. Second hoop plate; 3. Docking outer plate; 4. Docking inner plate; 5. Guide groove; 6. Limiting mechanism; 61. Transmission seat; 62. Transmission cavity; 63. Tooth plate; 64. Transmission component; 641. Horizontal axis; 642. Vertical axis; 643. Worm wheel; 644. Gear; 645. Worm; 65. Positioning component; 651. First elastic member; 652. Pull plate; 653. Positioning rod; 7. First guard plate; 8. Second guard plate; 9. Slot; 10. Connecting plug plate; 11. First support plate; 12. Second support plate; 13. Limiting groove; 14. Mounting groove; 15. Mounting hole; 16. Fixing block; 17. Mounting block; 18. Linkage cavity; 19. Linkage component; 191. Third elastic member; 192. Pressure rod; 193. Second pull rope; 20. Inner groove; 21. Second elastic member; 22. First pull rope; 23. Insert block; 24. Sliding cavity; 25. Stop block; 26. Fourth elastic member; 27. Insert hole; 28. Limiting hole; 29. ​​Push block; 30. Shift rod; 31. Push plate; 32. Fifth elastic member; 33. Fixing plate; 34. Groove. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1-15A docking device for connecting water supply pipes in a power plant, comprising: a first hoop plate 1 and a second hoop plate 2, each of which is provided with two and can be detachably installed at the end positions of two pipes; a docking outer plate 3 and a docking inner plate 4, respectively arranged on the first hoop plate 1 and the second hoop plate 2, and a guide groove 5 that is slidably matched with the docking inner plate 4 is provided on the docking outer plate 3; a limiting mechanism 6 is provided on the second hoop plate 2, used to drive the docking outer plate 3 and the docking inner plate 4 to move closer to or away from each other; a first guard plate 7 and a second guard plate 8 are detachably provided on the first hoop plate 1 and the second hoop plate 2, and a slot 9 is provided on the first guard plate 7, and a connecting plug plate 10 that is matched with the slot 9 is slidably connected inside the second hoop plate 2. A first support plate 11 and a second support plate 12 are respectively provided on the outer walls of the first hoop plate 1 and the second hoop plate 2, and the docking outer plate 3 and the docking inner plate 4 are respectively connected to the first support plate 11 and the second support plate 12.

[0050] When in use, one or two pipes are lifted by a crane, and the device is installed at the corresponding positions of the ends of the two pipes. The first guard plate 7 and the second guard plate 8 are first installed on the inner side walls of the first hoop plate 1 and the second hoop plate 2 respectively, and then the first hoop plate 1 and the second hoop plate 2 are fixedly installed on the pipes on both sides, and then the two first hoop plates 1 and the second hoop plates 2 are fixed. When the two first hoop plates 1 or the two second hoop plates 2 are fixed on the pipes, the two first guard plates 7 and the two second guard plates 8 are connected to each other at the same time.

[0051] Afterwards, the pipelines can be moved by crane or manually to make the two pipelines preliminarily aligned, so that the docking inner plate 4 is inserted into the guide groove 5 of the docking outer plate 3. At this time, the docking inner plate 4 can be moved along the guide groove 5, and no manual alignment is required in the subsequent process. Afterwards, the docking outer plate 3 or the docking inner plate 4 can be driven to move by operating the limiting mechanism 6. At this time, the docking outer plate 3 and the docking inner plate 4 are brought close to each other, so that the first hoop plate 1 and the second hoop plate 2 are brought close to each other, and finally the two pipelines are moved close to each other and finally in close contact. Through the cooperation of the limiting mechanism 6, the docking outer plate 3 and the docking inner plate 4, not only can the two pipes The two pipes can be moved and aligned between the pipes without manual auxiliary alignment and avoiding the situation of manual continuous adjustment of the docking position. The ends of the two pipes can be accurately aligned, which improves the subsequent welding effect, saves a lot of labor and time, greatly improves the docking efficiency, and reduces the construction cost; and the limiting mechanism 6 makes the two pipe ports aligned tightly and stably, greatly reduces the gap and misalignment phenomenon, and can make the subsequent welding more convenient and faster, while reducing the problems of leaking welding and large welds at the welding point, significantly improving the welding quality of the pipe docking, thereby improving the subsequent use effect of the pipeline, and having strong practicality, it can be widely promoted and used.

[0052] After the first hoop plate 1 and the second hoop plate 2 are installed on the pipes on both sides, the two first guard plates 7 and the two second guard plates 8 are connected to each other, and at the same time, the first guard plate 7 is disconnected from the first hoop plate 1, and the second guard plate 8 is disconnected from the second hoop plate 2. After the welding of the two pipe connections is completed, the connecting plug plate 10 is driven to move toward the outside of the second guard plate 8, and finally the connecting plug plate 10 is inserted into the slot 9 of the first guard plate 7, and the first guard plate 7 and the second guard plate 8 are connected. Then the first hoop plate 1 and the second hoop plate 2 can be removed from the pipeline, and the removed first hoop plate 1 and the second hoop plate 2 will be separated from the first guard plate 7 and the second guard plate 8 respectively, that is, at this time, the first guard plate 7 and the second guard plate 8 are still fixed on the pipeline, and the first guard plate 7 and the second guard plate 8 can be used to protect the pipeline interface after welding, which can greatly avoid the welding position being directly subjected to force and causing deformation and cracks after the first hoop plate 1 and the second hoop plate 2 are removed. The force is applied by the first guard plate 7 and the second guard plate 8 on both sides of the pipeline welding, and then the middle welding position can be well protected, so that it can have enough time to cool and stabilize, which greatly improves the docking quality of the pipeline and has strong practicality.

[0053] After removing the first hoop plate 1 and the second hoop plate 2 from the welded pipe, the other first guard plate 7 and the second guard plate 8 can be installed thereon respectively, and then the next pipe docking operation can be carried out, which can greatly improve the efficiency of pipe docking and welding, significantly improve the progress of pipeline construction, and reduce construction period and cost.

[0054] A plurality of grooves 34 are provided on the connecting plug board 10. The grooves 34 can be used to easily bear force on the connecting plug board 10, that is, can more conveniently drive the connecting plug board 10 to move.

[0055] The first hoop plate 1 and the second hoop plate 2 are both provided with a fixing plate 33. The two first hoop plates 1 are fixed by bolts and the fixing plate 33, so that the first hoop plate 1 and the second hoop plate 2 can be respectively fixed on two pipes to be connected, which is simple and convenient to disassemble and assemble, saving time and effort.

[0056] In this embodiment, preferably, please refer to Figure 1-7The limiting mechanism 6 includes: a transmission seat 61, which is arranged on the second support plate 12, and a transmission cavity 62 is opened in the transmission seat 61. A tooth plate 63 is slidably connected in the transmission seat 61; a transmission component 64, which is arranged in the transmission cavity 62 and is used to drive the tooth plate 63 to move; a locking component 65, which is arranged on the tooth plate 63 and is used to connect the tooth plate 63 with the docking outer plate 3. When the two pipes are moved closer to each other, that is, the first hoop plate 1 and the second hoop plate 2 are moved closer, the docking inner plate 4 moves along the guide groove 5 of the docking outer plate 3, and the tooth plate 63 can be driven to move by operating the transmission component 64, so that the locking component 65 on the tooth plate 63 is matched and connected with the docking outer plate 3. At this time, the first hoop plate 1 and the second hoop plate 2 can be connected to each other, that is, the two pipes are relatively fixed, which can ensure the stability of welding and prevent interface misalignment, make welding processing more convenient, and improve welding quality. Afterwards, the tooth plate 63 can be driven to move by the transmission component 64, so that the first hoop plate 1 and the second hoop plate 2 move closer to each other, that is, the interface between the two pipes is in close contact, which can greatly avoid the situation where there is a large gap between the two pipes, thereby effectively improving the welding quality at the pipeline interface, and the use effect is good.

[0057] In this embodiment, preferably, please refer to Figure 6 The transmission component 64 includes: a horizontal shaft 641 and a vertical shaft 642, both of which are rotatably connected in the transmission cavity 62, and a worm wheel 643 and a gear 644 meshing with the tooth plate 63 are provided on the horizontal shaft 641; a worm 645 is provided on the vertical shaft 642 and meshing with the worm wheel 643. When the vertical shaft 642 is rotated, the worm 645 is driven to rotate, and the rotation of the worm 645 will drive the worm wheel 643 and the horizontal shaft 641 to rotate, and the rotation of the horizontal shaft 641 will drive the gear 644 to rotate, and the gear 644 will eventually drive the tooth plate 63 meshing therewith to move. Due to the self-locking property of the worm wheel 64 and the worm 645, the tooth plate 63 can be driven to move through the transmission component 64, and the tooth plate 63 cannot inversely drive the horizontal shaft 641 or the vertical shaft 642 to rotate, thereby ensuring the stability of the tooth plate 63, that is, the stability of the connection between the first hoop plate 1 and the second hoop plate 2.

[0058] In this embodiment, preferably, please refer to Figure 1-2 and Figure 4-5 A limiting groove 13 is provided on the docking outer plate 3, and a locking component 65: a first elastic member 651, one end of which is provided on the tooth plate 63, and the other end is provided with a pull plate 652, and a locking rod 653 is provided on the pull plate 652, and the end of the locking rod 653 movably passes through the tooth plate 63 and is adapted to the limiting groove 13.

[0059] The first elastic member 651 in the present application can adopt a spring or other elastic structure. When the locking rod 653 moves and contacts the docking outer plate 3, it will be compressed and moved. It can also directly pull the pull plate 652 to drive the locking rod 653 to move. At this time, the first elastic member 651 is in a stretched state. Then, when the locking rod 653 moves to the position of the limiting groove 13 of the docking outer plate 3, the locking rod 653 is no longer compressed or the pull plate 652 is released. The rebound force of the first elastic member 651 will drive the locking rod 653 to move, and finally the locking rod 653 will enter the limiting groove 13, so that the tooth plate 63 can be connected to the docking outer plate 3, that is, the docking outer plate 3 and the docking inner plate 4, the first hoop plate 1 and the second hoop plate 2 are relatively connected.

[0060] In this embodiment, preferably, please refer to Figure 1 , Figure 3-4 and Figure 7-15 The inner walls of the first hoop plate 1 and the second hoop plate 2 are provided with mounting grooves 14 matched with the first guard plate 7 and the second guard plate 8, and the mounting grooves 14 are provided with mounting holes 15, and the mounting holes 15 are inverted "convex" type. The first guard plate 7 and the second guard plate 8 are provided with fixing blocks 16 matched with the mounting holes 15, and the fixing blocks 16 are elastically provided with mounting blocks 17. The first guard plate 7 and the second guard plate 8 are provided with linkage cavities 18, and the linkage cavities 18 are provided with linkage components 19 for driving the mounting blocks 17 to move.

[0061] Place the first guard plate 7 and the second guard plate 8 in the installation grooves 14 of the first hoop plate 1 and the second hoop plate 2 respectively, and the fixing blocks 16 on the first guard plate 7 and the second guard plate 8 will gradually be inserted into the installation holes 15 of the installation grooves 14. The mounting block 17 will be pressed to move toward the fixing block 16 when it contacts the mounting hole 15. When it is installed in place, the inside of the mounting hole 15 will no longer squeeze the mounting block 17, and the mounting block 17 will be moved out of the fixing block 16, so that the first guard plate 7 and the second guard plate 8 can be connected to the first hoop plate 1 and the second hoop plate 2 respectively through the mounting block 17. After the first hoop plate 1 and the second hoop plate 2 are installed on the pipeline, the two first guard plates 7 on the pipeline will be fixed together, and the two second guard plates 8 will also be fixed together. At this time, the linkage component 19 will drive the mounting block 17 to move out of the fixing block 16, that is, at this time, the first guard plate 7 and the second guard plate 8 are no longer connected to the first hoop plate 1 and the second hoop plate 2, that is, they are separated from them. Fig.10 and Fig.15 Status shown.

[0062] In this embodiment, preferably, please refer to Figure 8 , Fig.10 and Figure 12-15The fixing block 16 is provided with an inner groove 20 which is slidably connected with the mounting block 17, a second elastic member 21 is provided between the mounting block 17 and the inner wall of the inner groove 20, a first pull rope 22 is provided at the inner end of the mounting block 17, and a passage communicating with the linkage chamber 18 is provided in the fixing block 16. The second elastic member 21 in the present application can be a spring or other elastic structure, and when the mounting block 17 is compressed, it will move toward the inner groove 20 and compress the second elastic member 21, and when the mounting block 17 is not compressed, the rebound force of the second elastic member 21 will cause the mounting block 17 to move toward the outside of the inner groove 20.

[0063] In this embodiment, preferably, please refer to Figure 12-14 The linkage component 19 includes a third elastic member 191 disposed on the inner wall of the linkage cavity 18, a pressure rod 192 is disposed at the other end of the third elastic member 191, one end of the pressure rod 192 movably penetrates the linkage cavity 18, a second pull rope 193 is disposed at the other end of the pressure rod 192, and the other end of the second pull rope 193 is connected to the first pull rope 22. The third elastic member 191 in the present application can be a spring or other elastic structure.

[0064] When the two first hoops 1 or the two second hoops 2 are fixedly sleeved on the pipe, the ends of the two first guard plates 7 or the two second guard plates 8 will gradually approach each other. At this time, the pressure rod 192 will be squeezed by the end of the first guard plate 7 or the second guard plate 8, and the pressure rod 192 will move toward the linkage cavity 18 and stretch the third elastic member 191. At this time, the end of the pressure rod 192 will gradually pull the second pull rope 193, and the other end of the second pull rope 193 will pull the first pull rope 22, and the first pull rope 22 will pull the mounting block 17 to move it toward the inner groove 20, that is, the mounting block 17 is finally separated from the fixing with the mounting hole 15, at this time, the connection between the first guard plate 7 or the second guard plate 8 and the first hoop plate 1 or the second hoop plate 2 is released, that is, after the first hoop plate 1 or the second hoop plate 2 is removed, the first guard plate 7 or the second guard plate 8 will still remain on the pipe, and the separation is convenient and simple, and no additional operation is required for separation. The structure is ingenious, saving a lot of time and steps, and is more conducive to the use of staff, and has strong practicality.

[0065] The inner wall of the linkage cavity 18 is provided with multiple guide wheels, and the pressure rod 192 is also provided with guide wheels for realizing the steering of the second pull rope 193. The channel is also provided with guide wheels for realizing the steering of the first pull rope 22. The force of the first pull rope 22 and the second pull rope 193 can be guided to reduce their resistance and friction, and further improve the service life and use effect of the first pull rope 22 and the second pull rope 193.

[0066] In this embodiment, preferably, please refer to Figure 8-12One end of the first guard plate 7 and the second guard plate 8 is provided with an insert block 23, a sliding cavity 24 is opened in the insert block 23, a stopper 25 is slidably connected in the sliding cavity 24, a fourth elastic member 26 is provided between the stopper 25 and the inner wall of the sliding cavity 24, and the other end of the first guard plate 7 and the second guard plate 8 is provided with a socket 27 adapted to the insert block 23, and a limiting hole 28 adapted to the stopper 25 is provided in the socket 27. The fourth elastic member 26 in the present application can adopt a spring or other elastic structure. When the two first hoops 1 or the two second hoops 2 are fixedly sleeved on the pipe, the ends of the two first guard plates 7 or the two second guard plates 8 will gradually approach each other. At this time, the plug block 23 on the first guard plate 7 and the second guard plate 8 will gradually be inserted into the insertion hole 27 of the first guard plate 7 and the second guard plate 8 connected thereto, and the block 25 will be squeezed by the insertion hole 27 into the sliding cavity 24 and compress the fourth elastic member 26. When the block 25 is in the position of the limiting hole 28, the rebound force of the fourth elastic member 26 will drive the block 25 to enter the limiting hole 28, so that the block 23 can be fixed in the insertion hole 27 by the block 25, and the connection between the two first guard plates 7 or the two second guard plates 8 is completed.

[0067] In this embodiment, preferably, please refer to Figure 8-11 A push block 29 is slidably connected in the limiting hole 28, a shift rod 30 is provided on one side of the push block 29, and the other end of the shift rod 30 movably passes through the limiting hole 28 and is provided with a push plate 31, and a fifth elastic member 32 connected to the push plate 31 is sleeved on the outside of the shift rod 30. The fifth elastic member 32 in the present application can be a spring or other elastic structure. When the pipe welding part is cooled and stabilized, the push plate 31 can be squeezed to drive the shift rod 30 to move, and the fifth elastic member 32 can be compressed. The shift rod 30 will drive the push block 29 to move, and the push block 29 will gradually push the stopper 25 to move, so that the stopper 25 enters the sliding cavity 24. When the stopper 25 is separated from the limiting hole 28, the plug block 23 can be removed from the plug hole 27, so that the two first guard plates 7 or the two second guard plates 8 can be detached, and then the first guard plate 7 and the second guard plate 8 can be installed on other first hoop plates 1 and second hoop plates 2 for use, which can be recycled, greatly improving its performance and having strong practicality.

[0068] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0069] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0070] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A docking device for connecting water supply pipes in a power plant, characterized in that: include: The first hoop plate (1) and the second hoop plate (2) are each provided with two and are detachably installed at the end positions of the two pipes respectively; The butt joint outer plate (3) and the butt joint inner plate (4) are respectively arranged on the first hoop plate (1) and the second hoop plate (2); the butt joint outer plate (3) is provided with a guide groove (5) which is slidably matched with the butt joint inner plate (4); A limiting mechanism (6) is provided on the second hoop plate (2) and is used to drive the butted outer plate (3) and the butted inner plate (4) to move closer to or farther from each other; The first hoop plate (1) and the second hoop plate (2) are both detachably provided with a first guard plate (7) and a second guard plate (8); the first guard plate (7) is provided with a slot (9); and the second hoop plate (2) is internally slidably connected with a connecting plug plate (10) adapted to the slot (9).

2. A docking device for connecting water supply pipes in a power plant according to claim 1, characterized in that: A first support plate (11) and a second support plate (12) are respectively arranged on the outer walls of the first hoop plate (1) and the second hoop plate (2), and the butt joint outer plate (3) and the butt joint inner plate (4) are respectively connected to the first support plate (11) and the second support plate (12).

3. A docking device for connecting water supply pipes in a power plant according to claim 2, characterized in that: The limiting mechanism (6) comprises: A transmission seat (61) is arranged on the second support plate (12), a transmission cavity (62) is provided in the transmission seat (61), and a tooth plate (63) is slidably connected in the transmission seat (61); A transmission component (64), disposed in the transmission cavity (62), and used for driving the toothed plate (63) to move; A locking component (65) is provided on the tooth plate (63) and is used to connect the tooth plate (63) to the docking outer plate (3).

4. A docking device for connecting water supply pipes in a power plant according to claim 3, characterized in that: The transmission component (64) comprises: The horizontal shaft (641) and the vertical shaft (642) are both rotatably connected in the transmission chamber (62); the horizontal shaft (641) is provided with a worm gear (643) and a gear (644) meshing with the toothed plate (63); The worm (645) is disposed on the vertical shaft (642) and meshes with the worm wheel (643).

5. A docking device for connecting water supply pipes in a power plant according to claim 3, characterized in that: The butt joint outer plate (3) is provided with a limiting groove (13), and the locking component (65): A first elastic member (651) has one end disposed on the tooth plate (63) and the other end disposed with a pull plate (652). The pull plate (652) is provided with a locking rod (653). The end of the locking rod (653) movably passes through the tooth plate (63) and is adapted to fit the limiting groove (13).

6. A docking device for connecting water supply pipes in a power plant according to claim 1, characterized in that: The inner side walls of the first hoop plate (1) and the second hoop plate (2) are both provided with mounting grooves (14) adapted to the first guard plate (7) and the second guard plate (8), and mounting holes (15) are provided in the mounting grooves (14). The first guard plate (7) and the second guard plate (8) are both provided with fixing blocks (16) adapted to the fixing holes (15), and a mounting block (17) is elastically provided on the fixing block (16). The first guard plate (7) and the second guard plate (8) are provided with linkage cavities (18), and a linkage component (19) for driving the mounting block (17) to move is provided in the linkage cavity (18).

7. A docking device for connecting water supply pipes in a power plant according to claim 6, characterized in that: The fixing block (16) is provided with an inner groove (20) which is slidably connected to the mounting block (17); a second elastic member (21) is provided between the mounting block (17) and the inner wall of the inner groove (20); a first pull rope (22) is provided at the inner end of the mounting block (17); and a passage which is communicated with the linkage cavity (18) is provided in the fixing block (16).

8. A docking device for connecting water supply pipes in a power plant according to claim 7, characterized in that: The linkage component (19) includes a third elastic member (191) arranged on the inner wall of the linkage cavity (18), and the other end of the third elastic member (191) is provided with a pressure rod (192), one end of the pressure rod (192) is movably inserted through the linkage cavity (18), and the other end of the pressure rod (192) is provided with a second pull rope (193), and the other end of the second pull rope (193) is connected to the first pull rope (22).

9. A docking device for connecting water supply pipes in a power plant according to claim 8, characterized in that: One end of each of the first guard plate (7) and the second guard plate (8) is provided with an insert block (23), a sliding cavity (24) is provided in the insert block (23), a stopper (25) is slidably connected in the sliding cavity (24), a fourth elastic member (26) is provided between the stopper (25) and the inner wall of the sliding cavity (24), and the other end of each of the first guard plate (7) and the second guard plate (8) is provided with an insert hole (27) matched with the insert block (23), and a limiting hole (28) matched with the stopper (25) is provided in the insert hole (27).

10. A docking device for connecting water supply pipes in a power plant according to claim 9, characterized in that: A push block (29) is slidably connected in the limiting hole (28), a shift rod (30) is provided on one side of the push block (29), the other end of the shift rod (30) movably passes through the limiting hole (28) and is provided with a push plate (31), and a fifth elastic member (32) connected to the push plate (31) is sleeved on the outside of the shift rod (30).

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