Quick connecting mechanism for pipe plugging tool of nuclear power steam generator

Abstract

The utility model relates to a quick connecting mechanism for a pipe plugging tool of a nuclear power steam generator, which adopts the design that an airlock female head automatically locks the pipe plugging tool, so that the requirement of manual operation is obviously reduced, and the efficiency of mounting and dismounting the pipe plugging tool is improved. And through the combined design of the movable seat, the position adjusting plate and the mounting base, the position of the pipe plugging tool can be adjusted conveniently, so that the pipe plugging tool adapts to pipe orifices at different positions, and the operation flexibility is improved. The locking device can ensure that the position of the pipe plugging tool is stable in a locking state, and safety accidents possibly caused by loosening of the tool are avoided. The use of the hoisting device not only simplifies the lifting process of the pipe plugging tool, but also reduces the manpower burden through the cooperation of the fixed pulley and the movable pulley, and is more obvious especially under the condition that the height of the tool needs to be adjusted frequently.

Description

Technical Field

[0001] The utility model relates to the field of nuclear power special tools, in particular to a quick connection mechanism for a plugging tool of a nuclear power steam generator. Background Technique

[0002] The main function of a nuclear power evaporator is to transfer heat between the primary loop and the secondary loop, transfer the heat in the primary loop to the water in the secondary loop, and turn it into steam to drive a steam turbine to generate electricity. During long-term operation, once the heat transfer tubes are damaged, plugging treatment needs to be carried out to prevent further leakage.

[0003] At present, one of the main methods for dealing with the blockage of heat transfer tubes is to use a plugging tool to seal both ends of the blocked heat transfer tube to prevent the blockage from spreading further and affecting other unblocked heat transfer tubes. However, in the actual operation process, the following problems will be encountered when the existing plugging tool is installed on the orifice plate of the evaporator:

[0004] First, due to the relatively large weight of the plugging tool, it is very difficult for the operator to install it at the designated position. Second, the distance between the plugging tool and the evaporator tube sheet is relatively far, which not only increases the installation difficulty, but also may cause the plugging tool to be unable to accurately locate at the predetermined position due to the excessive distance. Summary of the Utility Model

[0005] The utility model aims to provide a quick connection mechanism for a plugging tool of a nuclear power steam generator, which can solve the problem of large installation difficulty.

[0006] The utility model provides a quick connection mechanism for a plugging tool of a nuclear power steam generator, which comprises:

[0007] A supporting device, which includes a support seat and a support rod. An installation groove is formed on the support seat, and the locking assembly is detachably arranged on the support seat;

[0008] An installation device, which includes a movable seat, an adjustment plate, an installation base and an air lock nipple. The movable seat is rotatably arranged in the installation groove, the adjustment plate is arranged on the movable seat, the installation base is arranged on the adjustment plate, the air lock nipple is arranged on the installation base, and the air lock nipple is used to lock the plugging tool when ventilated;

[0009] A locking device, which is detachably arranged on the support seat; and

[0010] Lifting device, the lifting device includes a lifting plate, a fixed pulley, a movable pulley, a fixing ring and a lifting rope. The lifting plate is installed on the evaporator tube sheet. The fixed pulley is arranged on the lifting plate. The movable pulley is arranged on the support rod. The fixing ring is arranged on the movable seat. The fixed end of the lifting rope is arranged on the fixing ring. The free end of the lifting rope sequentially bypasses the fixed pulley and the movable pulley. When the free end is tightened or released, the support rod is driven to move through the fixed pulley. The support rod drives the movable seat to move through the support seat;

[0011] Wherein, the locking device is used to fix the relative position of the movable seat and the support seat when locked; when the locking device is unlocked, the movable seat drives the plugging tool to rotate on the support seat and abut against the groove wall of the installation groove through the air lock male head, so that the plugging tool rotates to a predetermined installation angle.

[0012] Preferably, a plurality of installation positions are arranged on the adjusting plate in the length extension direction, and each installation position is used to install the installation base.

[0013] Preferably, each installation position is provided with a plurality of first installation holes, and the installation base is provided with a plurality of second installation holes. The installation device further includes a plurality of installation bolts, and the installation bolts pass through and fix the first installation holes and the second installation holes.

[0014] Preferably, the locking device includes a locking pin and a locking rope. The locking pin passes through the support seat and inserts into the movable seat from the installation groove, and the locking rope is fixed on the locking pin.

[0015] Preferably, a hook is arranged on the lifting plate, and the hook is used to hang on the evaporator tube sheet.

[0016] Preferably, a plug post is arranged on the lifting plate, and the plug post is inserted and fixed on the evaporator tube sheet.

[0017] Preferably, a support hole and a positioning hole are arranged on the support seat, and the support hole communicates with the positioning hole;

[0018] A slidable and resetable marble is arranged on the support rod. The support rod is detachably inserted into the support hole, and the marble is clamped in the positioning hole.

[0019] Preferably, a right-angle limiting surface is arranged in the installation groove. When the movable seat rotates and abuts against the right-angle limiting surface, the central axis of the air lock male head is parallel to the central axis of the support rod in the length extension direction.

[0020] Preferably, the quick connection mechanism of the plugging tool for nuclear power steam generators further includes a crank plate disposed on the movable seat, and an adjustment hole is formed in the crank plate for a traction rope to pass through.

[0021] Preferably, the support device further includes a rotating shaft, and the movable seat is rotatably arranged on the support seat through the rotating shaft.

[0022] Implementing the present invention has the following beneficial effects:

[0023] The present invention relates to a quick connection mechanism of a plugging tool for a nuclear power steam generator. By adopting the design of an air lock female head to automatically lock the plugging tool, the need for manual operation is significantly reduced, thereby improving the efficiency of installing and disassembling the plugging tool. The combined design of the movable seat, the position adjustment plate, and the installation base enables the plugging tool to be conveniently adjusted in position, thereby adapting to the pipe orifices at different positions and increasing the operation flexibility. The locking device can ensure the stable position of the plugging tool in the locked state, avoiding potential safety accidents caused by tool loosening. The use of the hoisting device not only simplifies the lifting process of the plugging tool but also reduces the human effort through the cooperation of the fixed pulley and the movable pulley, especially more obvious when the height of the tool needs to be frequently adjusted.

[0024] Furthermore, after the plugging tool is driven by the support device to move to a predetermined height position, unlocking the locking device enables the movable seat to rotate relative to the support seat, and the rotation of the movable seat is limited by the groove wall of the installation groove, thereby driving the plugging tool to quickly adjust to the predetermined installation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0026] Figure 1 is a schematic structural diagram of the quick connection mechanism of the plugging tool for a nuclear power steam generator in some embodiments of the present invention;

[0027] Figure 2 is a partial schematic structural diagram of the quick connection mechanism of the plugging tool for a nuclear power steam generator in some embodiments of the present invention;

[0028] Figure 3 is an exploded view of a part of the structure of the quick connection mechanism of the plugging tool for a nuclear power steam generator in some embodiments of the present invention;

[0029] Figure 4It is a schematic diagram of the fracture structure of a part of the quick connection mechanism of the tube plugging tool for a nuclear power steam generator in some embodiments of the present invention. Detailed implementation manners

[0030] The embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Figure 1 The quick connection mechanism 10 of the tube plugging tool for a nuclear power steam generator in some embodiments of the present invention is shown. The quick connection mechanism 10 of the tube plugging tool for a nuclear power steam generator is used to drive the tube plugging tool to be correspondingly installed on the evaporator tube sheet.

[0035] The quick connection mechanism 10 of the plugging tool for nuclear power steam generators includes a support device 1, a mounting device 2, a locking device 3 and a lifting device 4. The support device 1 functions to support the mounting device 2. The mounting device 2 is movably arranged on the support device 1 and is used for mounting the plugging tool. The locking device 3 is used to correspondingly lock the relative positions of the mounting device 2 and the support device 1. The lifting device 4 is used to lift the support device 1.

[0036] As Figures 1 to 4 shown, the support device 1 includes a support base 11 and a support rod 12, and a mounting groove 13 is formed on the support base 11.

[0037] The mounting device 2 includes a movable seat 21, an adjustment plate 22, a mounting base 23 and an air lock nipple 24. The movable seat 21 is rotatably arranged in the mounting groove 13. The adjustment plate 22 is arranged on the movable seat 21. The mounting base 23 is arranged on the adjustment plate 22. The air lock nipple 24 is arranged on the mounting base 23 and is used to lock the plugging tool when ventilated.

[0038] It can be understood that the support rod 12 is used to drive the support base 11 to move. The support base 11 is used to support the rotation of the movable seat 21. The mounting groove 13 is used to accommodate the movable seat 21.

[0039] The movable seat 21 can rotate in the mounting groove 13 of the support base 11. The adjustment plate 22 is arranged on the movable seat 21 and its function is to provide an adjustable position for the mounting base 23. The mounting base 23 is located above the adjustment plate 22, and the air lock nipple 24 is mounted on the mounting base 23. The function of the air lock nipple 24 is to lock the plugging tool when ventilated, ensuring the stability of the plugging tool during use.

[0040] As Figures 1 to 4 shown, the locking device 3 is detachably arranged on the support base 11. The lifting device 4 includes a lifting plate 41, a fixed pulley 42, a movable pulley 43, a fixing ring 44 and a lifting rope 45. The lifting plate 41 is mounted on the evaporator tube sheet. The fixed pulley 42 is arranged on the lifting plate 41. The movable pulley 43 is arranged on the support rod 12. The fixing ring 44 is arranged on the movable seat 21. The fixed end of the lifting rope 45 is arranged on the fixing ring 44. The free end of the lifting rope 45 sequentially bypasses the fixed pulley 42 and the movable pulley 43. When the free end is tightened or released, the support rod 12 is driven to move through the fixed pulley 42, and the support rod 12 drives the movable seat 21 to move through the support base 11.

[0041] Understandably, the lifting plate 41, as the fixed point of the entire lifting system, is installed on the evaporator tube sheet or other stable structures to ensure the stability of the entire system. The fixed pulley 42 is used to guide the direction of the lifting rope 45, ensuring that the lifting rope 45 can smoothly bypass each pulley, reducing friction and resistance. The movable pulley 43 can change the direction of the force, and when used in conjunction with the fixed pulley 42, it can achieve the effect of saving effort, that is, the operator only needs to apply a smaller force to move the relatively heavy support rod 12 and the support base 11. The fixed ring 44 is installed on the movable seat 21 to provide a fixed connection point for the lifting rope 45.

[0042] It should be noted that the evaporator tube sheet is a prior art and is used to fix the heat transfer tubes in the evaporator.

[0043] The locking device 3 is used to fix the relative position of the movable seat 21 and the support base 11 when locked; when the locking device 3 is unlocked, the movable seat 21 drives the plugging tool to rotate on the support base 11 through the air lock male head 24 and abuts against the groove wall of the installation groove 13, so that the plugging tool rotates to a predetermined installation angle.

[0044] It should be noted that when the locking device 3 is in the locked state, it can fix the relative position between the movable seat 21 and the support base 11, preventing the movable seat 21 from rotating relative to the support base 11, thereby ensuring the stable position of the plugging tool. When the locking device 3 is unlocked, the movable seat 21 can rotate relative to the support base 11, allowing the position of the plugging tool to be adjusted.

[0045] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the plugging tool for nuclear power steam generators, the adjustment plate 22 is provided with a plurality of installation positions 221 in the length extension direction, and each installation position 221 is used to install the installation base 23.

[0046] Understandably, the adjustment plate 22 is a flat plate structure with a length extension direction, and is provided with a plurality of installation positions 221 thereon. These installation positions 221 are evenly distributed along the length direction of the adjustment plate 22, and each installation position 221 has the same size and shape to adapt to the installation of the installation base 23. By providing a plurality of installation positions 221 on the adjustment plate 22, the plugging tool can be installed at different positions according to actual needs, improving the applicable range and operation flexibility of the plugging tool.

[0047] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the plugging tool for nuclear power steam generators, each installation position 221 is provided with a plurality of first installation holes 222, the installation base 23 is provided with a plurality of second installation holes 231, and the installation device 2 further includes a plurality of installation bolts, and the installation bolts pass through and fix the first installation holes 222 and the second installation holes 231.

[0048] Understandably, there are several first mounting holes 222 on each mounting position 221, and these holes are used to align with the second mounting holes 231 on the mounting base 23. There are also several second mounting holes 231 on the mounting base 23, and the positions and quantities of these holes match those of the first mounting holes 222. By passing mounting bolts through the first mounting holes 222 and the second mounting holes 231 and using nuts or other fixing parts for fixation, the mounting base 23 can be firmly mounted on the designated mounting position 221 on the position adjusting plate 22.

[0049] It should be noted that by providing multiple mounting positions 221 on the position adjusting plate 22, the most suitable mounting position can be selected according to the actual situation, improving the flexibility of the pipe blocking tool. Since the bolt fixing method is adopted, if the position of the pipe blocking tool needs to be adjusted, it can be easily disassembled and reinstalled.

[0050] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator pipe blocking tool, the locking device 3 includes a locking pin 31 and a locking rope 32. The locking pin 31 passes through the support seat 11 and inserts into the movable seat 21 from the installation groove 13, and the locking rope 32 is fixed on the locking pin 31.

[0051] Understandably, the locking pin 31 can pass through the support seat 11 and insert into the movable seat 21. When the locking device 3 is in the locked state, the locking pin 31 passes through the hole on the support seat 11 and inserts into the corresponding hole on the movable seat 21, thereby fixing the relative position of the movable seat 21 and the support seat 11. The locking rope 32 is fixed on the locking pin 31 and is used to control the movement of the locking pin 31. By pulling the locking rope 32, the extraction of the locking pin 31 can be controlled, thereby realizing the locking or unlocking of the locking device 3.

[0052] It should be noted that when the pipe blocking tool rises to a predetermined height, the locking pin 31 can be directly pulled out by pulling the locking rope 32 to achieve remote control, further improving the installation convenience of the pipe blocking tool.

[0053] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator pipe blocking tool, a hook is provided on the lifting plate 41, and the hook is used to hang on the evaporator tube sheet.

[0054] Understandably, a hook is provided on the lifting plate 41, and this hook is designed to hang on the evaporator tube sheet to fix the lifting plate 41 in place. The hook can be adjustable or fixed. If it is adjustable, then the hook can be adjusted according to the specific size of the evaporator tube sheet to ensure that the lifting plate 41 is firmly hung on the evaporator tube sheet.

[0055] As Figures 1 to 4As shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator tube plugging tool, a plug post is provided on the lifting plate 41, and the plug post is inserted and fixed on the evaporator tube sheet.

[0056] Understandably, the plug post on the lifting plate 41 is used to be inserted and fixed on the evaporator tube sheet to ensure the stable position of the lifting plate 41. Further, the plug post can be adjustable or fixed. If it is adjustable, the plug post can be adjusted according to the specific size of the evaporator tube sheet to ensure that the lifting plate 41 is firmly fixed on the evaporator tube sheet.

[0057] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator tube plugging tool, a support hole 111 and a positioning hole 112 are provided on the support seat 11, and the support hole 111 communicates with the positioning hole 112; a slidable and resetable ball 121 is provided on the support rod 12, the support rod 12 is detachably inserted into the support hole 111, and the ball 121 is stuck in the positioning hole 112.

[0058] Understandably, the support hole 111 is used to insert the support rod 12. The positioning hole 112 is used to cooperate with the ball 121 on the support rod 12 to realize the positioning of the support rod 12. The ball 121 can slide inside the support rod 12 and reset under the action of a spring.

[0059] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator tube plugging tool, a right-angle limiting surface 131 is provided in the installation groove 13. When the movable seat 21 rotates and abuts against the right-angle limiting surface 131, the central axis of the air lock male head 24 is parallel to the central axis of the support rod 12 in the length extension direction.

[0060] Understandably, a right-angle limiting surface 131 is provided in the installation groove 13, and this right-angle limiting surface 131 is used to limit the rotation position of the movable seat 21 to ensure that the movable seat 21 can contact it when rotating to a specific angle, thereby limiting the movable seat 21 at this angle.

[0061] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the nuclear power steam generator tube plugging tool, the quick connection mechanism 10 of the nuclear power steam generator tube plugging tool further includes a crank plate 5. The crank plate 5 is provided on the movable seat 21, and an adjustment hole 51 is provided on the crank plate 5 for a towing rope to pass through.

[0062] Understandably, the crank plate 5 is an auxiliary device provided on the movable seat 21 for enhancing the operator's control over the movable seat 21. The adjustment hole 51 is used for the towing rope to pass through, and the position of the movable seat 21 is controlled by pulling the towing rope.

[0063] As Figures 1 to 4 shown, in some embodiments of the quick connection mechanism 10 of the plugging tool for nuclear power steam generators, the support device 1 further includes a rotating shaft, and the movable seat 21 is rotatably arranged on the support seat 11 through the rotating shaft. It can be understood that the rotating shaft plays a role in supporting the rotation of the movable seat 21 on the support seat 11.

[0064] Implementing the present utility model has the following beneficial effects:

[0065] The present utility model relates to a quick connection mechanism for a plugging tool of a nuclear power steam generator. By adopting the design of an air lock female head to automatically lock the plugging tool, the need for manual operation is significantly reduced, thereby improving the efficiency of installing and disassembling the plugging tool. The combined design of the movable seat, the position adjustment plate and the installation base makes it convenient to adjust the position of the plugging tool, and thus adapt to the pipe orifices at different positions, increasing the operation flexibility. The locking device can ensure the stable position of the plugging tool in the locked state, avoiding potential safety accidents caused by tool loosening. The use of the hoisting device not only simplifies the lifting process of the plugging tool, but also reduces the human effort through the cooperation of the fixed pulley and the movable pulley, especially more obvious in the case where the height of the tool needs to be frequently adjusted.

[0066] Furthermore, after driving the plugging tool to move to a predetermined height position through the support device, unlocking the locking device enables the movable seat to rotate relative to the support seat, and the rotation of the movable seat is limited by the groove wall of the installation groove, thereby driving the plugging tool to quickly adjust to a predetermined installation position.

[0067] The solution of the present utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily essential to the present utility model. In addition, it can be understood that the steps in the method embodiments of the present utility model can be adjusted, combined and deleted according to actual needs, and the modules in the device embodiments of the present utility model can be combined, divided and deleted according to actual needs.

[0068] The above has described the embodiments of the present utility model. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical applications or the improvements to the technology in the market, or to enable other ordinary skilled persons in the technical field to understand the embodiments disclosed herein.

Claims

1. A quick connection mechanism for a plugging tool of a nuclear power steam generator, characterized in that, Comprising: A support device, the support device includes a support base and a support rod, and an installation groove is formed on the support base; An installation device, the installation device includes a movable seat, an adjustment plate, an installation base and an air lock female head, the movable seat is rotatably arranged in the installation groove, the adjustment plate is arranged on the movable seat, the installation base is arranged on the adjustment plate, the air lock female head is arranged on the installation base, and the air lock female head is used to lock the plugging tool when ventilated; A locking device, the locking device is detachably arranged on the support base; and A hoisting device, the hoisting device includes a hoisting plate, a fixed pulley, a movable pulley, a fixing ring and a hoisting rope, the hoisting plate is installed on the evaporator tube sheet, the fixed pulley is arranged on the hoisting plate, the movable pulley is arranged on the support rod, the fixing ring is arranged on the movable seat, the fixed end of the hoisting rope is arranged on the fixing ring, the free end of the hoisting rope sequentially bypasses the fixed pulley and the movable pulley, when the free end is tightened or released, the support rod is driven to move through the fixed pulley, and the support rod drives the movable seat to move through the support base; Wherein, the locking device is used to fix the relative position of the movable seat and the support base when locked; when the locking device is unlocked, the movable seat drives the plugging tool to rotate on the support base and abut against the groove wall of the installation groove through the air lock female head, so that the plugging tool rotates to a predetermined installation angle.

2. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, characterized in that A plurality of installation positions are arranged on the adjustment plate in the length extension direction, and each installation position is used to install the installation base.

3. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 2, characterized in that, Each installation position is provided with a plurality of first installation holes, the installation base is provided with a plurality of second installation holes, and the installation device further includes a plurality of installation bolts, and the installation bolts penetrate and fix the first installation holes and the second installation holes.

4. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, wherein, The locking device includes a locking pin and a locking rope, the locking pin penetrates the support base and inserts into the movable seat from the installation groove, and the locking rope is fixed on the locking pin.

5. The quick connection mechanism for the plugging tool of the nuclear power steam generator according to claim 1, wherein A hook is arranged on the hoisting plate, and the hook is used to hang on the evaporator tube sheet.

6. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, characterized in that A plug post is arranged on the hoisting plate, and the plug post is inserted and fixed on the evaporator tube sheet.

7. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, characterized in that, A support hole and a positioning hole are formed on the support base, and the support hole communicates with the positioning hole; A slidable and resetable ball is arranged on the support rod, the support rod is detachably inserted into the support hole, and the ball is clamped in the positioning hole.

8. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, characterized in that, A right-angle limiting surface is arranged in the installation groove, when the movable seat rotates and abuts against the right-angle limiting surface, the central axis of the air lock female head is parallel to the central axis of the support rod in the length extension direction.

9. The quick connection mechanism of the plugging tool for a nuclear power steam generator according to claim 1, wherein The quick connection mechanism for the plugging tool of the nuclear power steam generator further includes a crank plate, the crank plate is arranged on the movable seat, and an adjustment hole is formed on the crank plate for a traction rope to pass through.

10. The quick connection mechanism of the plugging tool for nuclear power steam generators according to claim 1, characterized in that, The support device further includes a rotating shaft, and the movable seat is rotatably arranged on the support base through the rotating shaft.

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