Nuclear power plant fingerstocker

CN224897156UActive Publication Date: 2026-10-27YANGJIANG NUCLEAR POWER +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522424334.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-10-27
Estimated Expiration
2035-11-14

AI Technical Summary

Technical Problem

[0002]核电设备维护保养期间,需要对 R141/R181 厂房(以下称为 RIC 厂房)内 RIC指套管进行抽出和插入操作,RIC厂房内设备多,有较复杂的管路交错穿插,能利用的空间狭窄,不易摆放大型设备,当采用核电厂指套管抽插工具进行插拔作业时,由于缺乏支撑工具,通常需要工作人员手持该核电厂指套管抽插工具进行作业,对工作人员体力影响较大

Benefits of technology

[0014]实施本实用新型具有以下有益效果:应用该核电厂指套管抽插工具安装架,可对该核电厂指套管抽插工具进行支撑,且该核电厂指套管抽插工具安装架结构相对简单,制造成本较低,且其第一摆臂机构和第二摆臂机构位置调节方便,实用性较好。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224897156U_ABST
    Figure CN224897156U_ABST
Patent Text Reader

Abstract

The utility model discloses a nuclear power plant finger sleeve pipe pull -insert tool mounting bracket, it includes flange seat, mounting seat, mounting panel, first guide component, second guide component, first swing arm mechanism and second swing arm mechanism, mounting seat rotatable installation is in flange seat top, and the mounting panel is located mounting seat top, and the mounting panel is parallel interval arrangement with mounting seat, and first guide component and second guide component interval arrangement, and first guide component and second guide component all are connected mounting panel and mounting seat, first swing arm mechanism movable installation is in first guide component, and second swing arm mechanism movable installation is in second guide component. It can support the nuclear power plant finger sleeve pipe pull -insert tool to this, and the nuclear power plant finger sleeve pipe pull -insert tool mounting bracket structure is relatively simple, and the manufacturing cost is lower, and its first swing arm mechanism and second swing arm mechanism position adjustment convenient, and the practicality is better.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of nuclear power technology, and in particular to a mounting bracket for a nuclear power plant finger sleeve insertion and removal tool. Background Technology

[0002] During the maintenance of nuclear power equipment, it is necessary to perform extraction and insertion operations on RIC finger sleeves in the R141 / R181 plant (hereinafter referred to as RIC plant). The RIC plant contains a lot of equipment and has a complex network of interwoven pipes. The available space is narrow and it is not easy to place large equipment. When using nuclear power plant finger sleeve extraction and insertion tools for insertion and removal operations, due to the lack of support tools, workers usually need to hold the nuclear power plant finger sleeve extraction and insertion tools by hand, which has a significant impact on the physical strength of the workers. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a mounting bracket for a nuclear power plant finger sleeve insertion and removal tool, so as to solve the technical problem of lack of support tools in related technologies.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a nuclear power plant finger sleeve insertion and removal tool mounting frame, including a flange seat, a mounting seat, a mounting plate, a first guide assembly, a second guide assembly, a first swing arm mechanism, and a second swing arm mechanism; The mounting base is rotatably mounted on the flange seat, the mounting plate is located above the mounting base, the mounting plate and the mounting base are arranged parallel to each other and spaced apart, the first guide component and the second guide component are arranged spaced apart, and both the first guide component and the second guide component are connected to the mounting plate and the mounting base; The first swing arm mechanism is movably mounted on the first guide assembly, and the second swing arm mechanism is movably mounted on the second guide assembly.

[0005] In some embodiments, the nuclear power plant finger sleeve insertion and removal tool mounting frame further includes a connecting rope; The upper surface of the mounting plate is provided with a first roller, and the opposite sides of the mounting plate are respectively provided with a second roller and a third roller. The second roller is arranged opposite to the first swing arm mechanism, and the third roller is arranged opposite to the second swing arm mechanism. The connecting rope is connected to the first roller, the second roller and the third roller, and the two ends of the connecting rope are respectively connected to the first swing arm mechanism and the second swing arm mechanism.

[0006] In some embodiments, the first guide assembly includes a first guide rod and a second guide rod, wherein the first guide rod and the second guide rod are arranged parallel to each other and spaced apart. The first swing arm mechanism includes a first mounting arm, a first connecting arm, and a second connecting arm; the first mounting arm has a first mounting part and a second mounting part, the first mounting part is sleeved on the first guide rod, and the second mounting part is sleeved on the second guide rod; The first end of the first connecting arm is rotatably connected to the first mounting arm, the second end of the first connecting arm is rotatably connected to the first end of the second connecting arm, and the second end of the second connecting arm is provided with a first threaded connector.

[0007] In some embodiments, the first swing arm mechanism further includes a first fastener and a second fastener. The first fastener is used to pass through a first end of the first connecting arm to abut against the first mounting arm, so that the first connecting arm and the first mounting arm are relatively fixed. The second fastener is used to pass through a first end of the second connecting arm to abut against a second end of the first connecting arm, so that the second connecting arm and the first connecting arm are relatively fixed.

[0008] In some embodiments, the first mounting arm has a plurality of first limiting protrusions on the outer side of the first connecting arm along the swing direction of the first connecting arm.

[0009] In some embodiments, the first mounting portion and / or the second mounting portion are provided with a first locking member.

[0010] In some embodiments, the second guide assembly includes a third guide rod and a fourth guide rod, wherein the third guide rod and the fourth guide rod are arranged parallel to each other and spaced apart. The second swing arm mechanism includes a second mounting arm, a third connecting arm, and a fourth connecting arm; the second mounting arm has a third mounting part and a fourth mounting part, the third mounting part is sleeved on the third guide rod, and the fourth mounting part is sleeved on the fourth guide rod; The first end of the third connecting arm is rotatably connected to the second mounting arm, the second end of the third connecting arm is rotatably connected to the first end of the fourth connecting arm, and the second end of the fourth connecting arm is provided with a second threaded connector.

[0011] In some embodiments, the second swing arm mechanism further includes a third fastener and a fourth fastener. The third fastener is used to pass through the first end of the third connecting arm to abut against the second mounting arm, so that the third connecting arm and the second mounting arm are relatively fixed. The fourth fastener is used to pass through the first end of the fourth connecting arm to abut against the second end of the third connecting arm, so that the fourth connecting arm and the third connecting arm are relatively fixed.

[0012] In some embodiments, the second mounting arm is provided with a plurality of second limiting protrusions on the outer side of the third connecting arm along the swing direction of the third connecting arm.

[0013] In some embodiments, the third mounting portion and / or the fourth mounting portion are provided with a second locking member.

[0014] The present invention has the following advantages: the nuclear power plant finger sleeve insertion and removal tool mounting bracket can support the nuclear power plant finger sleeve insertion and removal tool, and the nuclear power plant finger sleeve insertion and removal tool mounting bracket has a relatively simple structure, low manufacturing cost, and convenient position adjustment of its first swing arm mechanism and second swing arm mechanism, and has good practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is one of the structural schematic diagrams of the nuclear power plant finger sleeve insertion and removal tool mounting frame in some embodiments of this utility model; Figure 2 This is the second schematic diagram of the structure of the nuclear power plant finger sleeve insertion and removal tool mounting bracket in some embodiments of this utility model; Figure 3 yes Figure 1 Detailed image of the mounting bracket for the finger sleeve insertion and removal tool in a nuclear power plant; Figure 4 This is one of the structural schematic diagrams of the first swing arm mechanism in some embodiments of this utility model; Figure 5 This is the second structural schematic diagram of the first swing arm mechanism in some embodiments of this utility model; Figure 6 This is one of the structural schematic diagrams of the second swing arm mechanism in some embodiments of this utility model; Figure 7 This is the second schematic diagram of the structure of the second swing arm mechanism in some embodiments of this utility model; Figure 8 This is a schematic diagram of the first type of finger sleeve insertion and removal tool for nuclear power plants; Figure 9 This is a schematic diagram of the structure of the second type of nuclear power plant finger sleeve insertion and removal tool. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0017] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0019] See Figures 1 to 7 As shown, this utility model discloses a mounting bracket for a nuclear power plant finger sleeve insertion and removal tool, which includes a flange seat 10, a mounting base 20, a mounting plate 30, a first guide assembly 40, a second guide assembly 50, a first swing arm mechanism 60, and a second swing arm mechanism 70.

[0020] The mounting base 20 is rotatably mounted on the flange seat 10. The mounting plate 30 is located above the mounting base 20 and is arranged parallel to and spaced apart from the mounting base 20. The first guide assembly 40 and the second guide assembly 50 are spaced apart, and both the first guide assembly 40 and the second guide assembly 50 are connected to the mounting plate 30 and the mounting base 20. The flange seat 10 can be installed in the working position, either by fixing it to the working position with fastening bolts, or it can be installed on a mobile trolley.

[0021] The first swing arm mechanism 60 is movably mounted on the first guide assembly 40, and the second swing arm mechanism 70 is movably mounted on the second guide assembly 50.

[0022] like Figures 1 to 3 As shown, in some embodiments, the nuclear power plant finger sleeve insertion and removal tool mounting bracket also includes a connecting rope 80. The upper surface of the mounting plate 30 is provided with a first roller 311, and the opposite sides of the mounting plate 30 are respectively provided with a second roller 321 and a third roller 331. The second roller 321 is disposed opposite to the first swing arm mechanism 60, and the third roller 331 is disposed opposite to the second swing arm mechanism 70. The connecting rope 80 overlaps the first roller 311, the second roller 321 and the third roller 331, and the two ends of the connecting rope 80 are respectively connected to the first swing arm mechanism 60 and the second swing arm mechanism 70.

[0023] like Figure 1 and Figure 2 As shown, in some embodiments, the upper part of the inner cavity of the flange seat 10 is provided with a cross roller bearing 11, and the mounting seat 20 is fixedly connected to the cross roller bearing 11, so that the mounting seat 20 can rotate circumferentially around the axis of the flange seat 10, thereby adjusting the position of the first swing arm mechanism 60 and the second swing arm mechanism 70.

[0024] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the first guide assembly 40 includes a first guide rod 41 and a second guide rod 42, which are arranged parallel to each other and spaced apart.

[0025] like Figure 4 and Figure 5 As shown, the first swing arm mechanism 60 includes a first mounting arm 61, a first connecting arm 62, and a second connecting arm 63. The first mounting arm 61 has a first mounting portion 611 and a second mounting portion 612. The first mounting portion 611 is sleeved on the first guide rod 41, and the second mounting portion 612 is sleeved on the second guide rod 42. Both the first mounting portion 611 and the second mounting portion 612 may have a first bearing inside their cavities.

[0026] The first end of the first connecting arm 62 is rotatably connected to the first mounting arm 61, and the second end of the first connecting arm 62 is rotatably connected to the first end of the second connecting arm 63. The second end of the second connecting arm 63 is provided with a first threaded connector 64. Preferably, the first end of the first connecting arm 62 and the first mounting arm 61 are rotatably connected via a first rotating shaft, and a second bearing may be fitted around the outer circumference of the first rotating shaft. The second end of the first connecting arm 62 and the first end of the second connecting arm 63 can be rotatably connected via a second rotating shaft, and a third bearing may be fitted around the outer circumference of the second rotating shaft. The inner cavity of the second end of the second connecting arm 63 may be provided with a fourth bearing, and the first threaded connector 64 passes through the fourth bearing. The first threaded connector 64 may be threadedly connected and fixed to the first mounting cylinder 101 of the first type of nuclear power plant finger sleeve insertion and removal tool 100 (e.g., Figure 8 As shown), the first threaded connector 64 may be, but is not limited to, a connecting bolt, the head of which may be connected to a torque wrench.

[0027] In some embodiments, the first swing arm mechanism 60 further includes a first fastener 65 and a second fastener 66. The first fastener 65 is used to pass through the first end of the first connecting arm 62 to abut against the first mounting arm 61, thereby fixing the first connecting arm 62 and the first mounting arm 61 relative to each other. The second fastener 66 is used to pass through the first end of the second connecting arm 63 to abut against the second end of the first connecting arm 62, thereby fixing the second connecting arm 63 and the first connecting arm 62 relative to each other. The first fastener 65 and the second fastener 66 include, but are not limited to, fastening bolts.

[0028] like Figure 5 As shown, in some embodiments, the first mounting arm 61 is provided with a plurality of first limiting protrusions 613 on the outer side of the first connecting arm 62 along the swing direction of the first connecting arm 62, which can limit the swing of the first connecting arm 62.

[0029] like Figure 4 and Figure 5 As shown, in some embodiments, the first mounting arm 61 is provided with a first groove 614 on the side near the first guide assembly 40, and the first swing arm mechanism 60 further includes a first connecting block 67 rotatably mounted in the first groove 614. The first connecting block 67 is connected to one end of the connecting rope 80 so that the connecting rope 80 can be dynamically adjusted in position.

[0030] like Figure 4 and Figure 5As shown, in some embodiments, the first mounting portion 611 and / or the second mounting portion 612 are provided with a first locking member 68. The first locking member 68 may include, but is not limited to, a clamp, or may be a seat tube bundle. The first locking member 68 can lock the first swing arm mechanism 60 at a suitable height position. Of course, in some embodiments, the first locking member 68 may not be provided.

[0031] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, in some embodiments, the second guide assembly 50 includes a third guide rod 51 and a fourth guide rod 52, which are arranged parallel to each other and spaced apart. The third guide rod 51 may be arranged opposite to the first guide rod 41, and the fourth guide rod 52 may be arranged opposite to the second guide rod 42.

[0032] like Figure 6 and Figure 7 As shown, the second swing arm mechanism 70 includes a second mounting arm 71, a third connecting arm 72, and a fourth connecting arm 73; the second mounting arm 71 has a third mounting part 711 and a fourth mounting part 712, the third mounting part 711 is sleeved on the third guide rod 51, and the fourth mounting part 712 is sleeved on the fourth guide rod 52; the inner cavity of both the third mounting part 711 and the fourth mounting part 712 can be provided with a fifth bearing.

[0033] The first end of the third connecting arm 72 is rotatably connected to the second mounting arm 71, and the second end of the third connecting arm 72 is rotatably connected to the first end of the fourth connecting arm 73. The second end of the fourth connecting arm 73 is provided with a second threaded connector 74. Preferably, the first end of the first connecting arm 62 and the first mounting arm 61 can be rotatably connected via a third rotating shaft, and the second end of the first connecting arm 62 and the first end of the second connecting arm 63 can be rotatably connected via a fourth rotating shaft. A sixth bearing can be fitted around the outer circumference of the third rotating shaft, and a seventh bearing can be fitted around the outer circumference of the fourth rotating shaft. The second threaded connector 74 can be threadedly connected and fixed to the second mounting cylinder 201 of the second type of nuclear power plant finger sleeve insertion and removal tool 200 (e.g., Figure 9 As shown), the second threaded connector 74 may be, but is not limited to, a connecting bolt, the head of which may be connected to a torque wrench.

[0034] In some embodiments, the second swing arm mechanism 70 further includes a third fastener 75 and a fourth fastener 76. The third fastener 75 is used to pass through the first end of the third connecting arm 72 to abut against the second mounting arm 71, thereby fixing the third connecting arm 72 and the second mounting arm 71 relative to each other. The fourth fastener 76 is used to pass through the first end of the fourth connecting arm 73 to abut against the second end of the third connecting arm 72, thereby fixing the fourth connecting arm 73 and the third connecting arm 72 relative to each other. The third fastener 75 and the fourth fastener 76 include, but are not limited to, fastening bolts.

[0035] In some embodiments, the second mounting arm 71 is provided with a plurality of second limiting protrusions 713 on the outer side of the third connecting arm 72 along the swing direction of the third connecting arm 72, which can limit the swing of the third connecting arm 72.

[0036] like Figure 6 and Figure 7 As shown, in some embodiments, the second mounting arm 71 is provided with a second groove 714 on the side near the second guide assembly 50, and the second swing arm mechanism 70 further includes a second connecting block 77 rotatably mounted in the second groove 714. The second connecting block 77 is connected to one end of the connecting rope 80 so that the connecting rope 80 can be dynamically adjusted in position.

[0037] like Figure 6 and Figure 7 As shown, in some embodiments, the third mounting portion 711 and / or the fourth mounting portion 712 are provided with a second locking member 78. The second locking member 78 may include, but is not limited to, a clamp, or may be a seat tube bundle. The second locking member 78 can lock the second swing arm mechanism 70 at a suitable height position. Of course, in some embodiments, the second locking member 78 may not be provided.

[0038] like Figure 3 As shown, in some embodiments, the mounting plate 30 is provided with a first roller seat 31, and the first roller 311 is mounted on the first roller seat 31. The opposite sides of the mounting plate 30 are respectively provided with a second roller seat 32 and a third roller seat 33, with the second roller 321 mounted on the second roller seat 32 and the third roller 331 mounted on the third roller seat 33. The second roller seat 32 is also provided with a first limiting buckle 322, and the third roller seat 33 is provided with a second limiting buckle 332. One end of the connecting rope 80 passes through the gap between the first limiting buckle 322 and the second roller 321, and the other end of the connecting rope 80 passes through the gap between the second limiting buckle 332 and the third roller 331, thereby restricting the upper part of the connecting rope 80 and preventing the connecting rope 80 from coming off the roller.

[0039] The mounting bracket for the nuclear power plant finger sleeve insertion and removal tool can support the tool. The mounting bracket has a relatively simple structure, low manufacturing cost, and convenient position adjustment of the first swing arm mechanism 60 and the second swing arm mechanism 70, making it highly practical.

[0040] In addition, when both the Type I nuclear power plant finger sleeve insertion tool 100 and the Type II nuclear power plant finger sleeve insertion tool 200 are required to be used at the same time, the connecting rope 80 can achieve a balanced lifting effect. The Type I nuclear power plant finger sleeve insertion tool 100 and the Type II nuclear power plant finger sleeve insertion tool 200 have similar weights, generally 8KG.

[0041] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A mounting bracket for a nuclear power plant finger sleeve insertion and removal tool, characterized in that, It includes a flange seat (10), a mounting base (20), a mounting plate (30), a first guide assembly (40), a second guide assembly (50), a first swing arm mechanism (60), and a second swing arm mechanism (70); The mounting base (20) is rotatably mounted on the flange seat (10). The mounting plate (30) is located above the mounting base (20). The mounting plate (30) and the mounting base (20) are arranged parallel to each other. The first guide component (40) and the second guide component (50) are arranged at intervals. Both the first guide component (40) and the second guide component (50) are connected to the mounting plate (30) and the mounting base (20). The first swing arm mechanism (60) is movably mounted on the first guide assembly (40), and the second swing arm mechanism (70) is movably mounted on the second guide assembly (50).

2. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 1, characterized in that, The nuclear power plant finger sleeve insertion and removal tool mounting frame also includes a connecting rope (80). The upper surface of the mounting plate (30) is provided with a first roller (311), and the opposite sides of the mounting plate (30) are respectively provided with a second roller (321) and a third roller (331). The second roller (321) is arranged opposite to the first swing arm mechanism (60), and the third roller (331) is arranged opposite to the second swing arm mechanism (70). The connecting rope (80) overlaps the first roller (311), the second roller (321) and the third roller (331), and the two ends of the connecting rope (80) are respectively connected to the first swing arm mechanism (60) and the second swing arm mechanism (70).

3. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 1 or 2, characterized in that, The first guide assembly (40) includes a first guide rod (41) and a second guide rod (42), wherein the first guide rod (41) and the second guide rod (42) are arranged parallel to each other at intervals. The first swing arm mechanism (60) includes a first mounting arm (61), a first connecting arm (62) and a second connecting arm (63); the first mounting arm (61) has a first mounting part (611) and a second mounting part (612), the first mounting part (611) is sleeved on the first guide rod (41), and the second mounting part (612) is sleeved on the second guide rod (42); The first end of the first connecting arm (62) is rotatably connected to the first mounting arm (61), the second end of the first connecting arm (62) is rotatably connected to the first end of the second connecting arm (63), and the second end of the second connecting arm (63) is provided with a first threaded connector (64).

4. The mounting bracket for the nuclear power plant finger sleeve insertion and removal tool according to claim 3, characterized in that, The first swing arm mechanism (60) further includes a first fastener (65) and a second fastener (66). The first fastener (65) is used to pass through the first end of the first connecting arm (62) to abut against the first mounting arm (61), so that the first connecting arm (62) and the first mounting arm (61) are relatively fixed. The second fastener (66) is used to pass through the first end of the second connecting arm (63) to abut against the second end of the first connecting arm (62), so that the second connecting arm (63) and the first connecting arm (62) are relatively fixed.

5. The mounting bracket for the nuclear power plant finger sleeve insertion and removal tool according to claim 3, characterized in that, The first mounting arm (61) has a plurality of first limiting protrusions (613) on the outside of the first connecting arm (62) along the swing direction of the first connecting arm (62).

6. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 3, characterized in that, The first mounting part (611) and / or the second mounting part (612) are provided with a first locking member (68).

7. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 1 or 2, characterized in that, The second guide assembly (50) includes a third guide rod (51) and a fourth guide rod (52), wherein the third guide rod (51) and the fourth guide rod (52) are arranged parallel to each other at intervals. The second swing arm mechanism (70) includes a second mounting arm (71), a third connecting arm (72) and a fourth connecting arm (73); the second mounting arm (71) has a third mounting part (711) and a fourth mounting part (712), the third mounting part (711) is sleeved on the third guide rod (51), and the fourth mounting part (712) is sleeved on the fourth guide rod (52); The first end of the third connecting arm (72) is rotatably connected to the second mounting arm (71), the second end of the third connecting arm (72) is rotatably connected to the first end of the fourth connecting arm (73), and the second end of the fourth connecting arm (73) is provided with a second threaded connector (74).

8. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 7, characterized in that, The second swing arm mechanism (70) further includes a third fastener (75) and a fourth fastener (76). The third fastener (75) is used to pass through the first end of the third connecting arm (72) to abut against the second mounting arm (71), so that the third connecting arm (72) and the second mounting arm (71) are relatively fixed. The fourth fastener (76) is used to pass through the first end of the fourth connecting arm (73) to abut against the second end of the third connecting arm (72), so that the fourth connecting arm (73) and the third connecting arm (72) are relatively fixed.

9. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 7, characterized in that, The second mounting arm (71) has a plurality of second limiting protrusions (713) on the outside of the third connecting arm (72) along the swing direction of the third connecting arm (72).

10. The nuclear power plant finger sleeve insertion and removal tool mounting bracket according to claim 7, characterized in that, The third mounting part (711) and / or the fourth mounting part (712) are provided with a second locking member (78).