Sampling device of nuclear phase instrument

Abstract

The invention belongs to the technical field of power system nuclear phase, and particularly discloses a nuclear phase instrument sampling device, a walking mechanism comprises a walking support, a mounting rod and a mounting and dismounting mechanism, the mounting rod and the mounting and dismounting mechanism are rotatably connected to the walking support, and nuclear phase mechanisms are symmetrically mounted at the two ends of the mounting rod; the mounting and dismounting mechanism comprises a first mounting plate mounted on the mounting rod and at least two groups of mounting and dismounting assemblies slidably arranged on the first mounting plate; the nuclear phase mechanism comprises a second mounting plate mounted on the mounting rod and at least two groups of nuclear phase assemblies slidably arranged on the second mounting plate; the number of the assembling and disassembling assemblies and the number of the phase checking assemblies are consistent, the assembling and disassembling assemblies and the phase checking assemblies are arranged in a sliding mode in the length direction of the mounting rod, the assembling and disassembling assemblies and the phase checking assemblies correspond to the central symmetry positions of the mounting rod, and connecting assemblies are arranged between the corresponding assembling and disassembling assemblies and the corresponding phase checking assemblies. According to the scheme, the problem that potential safety hazards exist due to the fact that a conducting rod of a cable head is exposed in the air after a worker removes an insulating plug can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of power system phase nuclear technology, and in particular relates to a sampling device of a phase nuclear instrument. Background Art

[0002] The fully enclosed touchable cable head ring main unit is widely used in urban power networks due to its simple structure, safe and reliable operation, and low maintenance. In the prior art, when checking the phase of the cable head of the ring main unit, it is necessary to first remove the cable head and fix it to the insulating bracket outside the cabinet before checking the phase of the cable head. After checking the phase, the cable head is reinstalled into the ring main unit. During the whole process, the phase check only takes no more than 5 minutes. However, due to the long operation time of the cable head, the silicone grease between the cable head and the high-voltage insulating docking conduit and between the cable head and the stress cone has dried, making it difficult to separate the cable head from the high-voltage insulating docking conduit and the stress cone. In addition, the narrow space of the cable room of the ring main unit is not conducive to force and the operation is inconvenient, which results in each disassembly and assembly of the cable head taking nearly 130 minutes.

[0003] That is to say, it currently takes more than two hours to check the phase of the cable head of the ring main unit, and most of the time is spent on disassembling and installing the cable head. With the construction and transformation of the power network, the number of phase checks of the ring main unit is gradually increasing. The more than two hours it takes to check the phase of each ring main unit has a great impact on the power supply reliability.

[0004] To this end, the prior art proposes that after the phase probe (i.e., metal contact) of the phase detector is insulated, it is only necessary to remove the insulating plug on the cable head, and then the phase check can be directly performed on the conductive rod of the cable head, eliminating the steps of disassembling and assembling the cable head, and greatly shortening the phase check time. However, after removing the insulating plug, the air net distance between the charged body of the cable head (i.e., the conductive rod) and the ground cannot meet the safety distance, and corresponding measures must be taken for the conductive rod of the cable head in the subsequent phase check process. However, even if corresponding measures can be taken for the phase check in the future, after the staff removes the insulating plug, the conductive rod of the cable head is already exposed to the air, which is prone to safety hazards. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a nuclear phase instrument sampling device to solve the problem that after the staff removes the insulating plug, the conductive rod of the cable head is exposed to the air, posing a safety hazard.

[0006] According to an embodiment of the present invention, the present invention adopts the following technical solution:

[0007] The nuclear phase instrument sampling device comprises a walking mechanism, an assembly and disassembly mechanism and a nuclear phase mechanism, the walking mechanism comprises a walking bracket and a mounting rod rotatably connected to the walking bracket, the assembly and disassembly mechanism and the nuclear phase mechanism are symmetrically mounted on both sides of the mounting rod along the rotation center of the mounting rod; the assembly and disassembly mechanism comprises a first mounting plate mounted on the mounting rod and at least two groups of assembly and disassembly components slidably arranged on the first mounting plate; the nuclear phase mechanism comprises a second mounting plate mounted on the mounting rod and at least two groups of nuclear phase components slidably arranged on the second mounting plate; the number of the assembly and disassembly components and the nuclear phase components are the same, and they are all slidably arranged along the length direction of the mounting rod, the assembly and disassembly components and the nuclear phase components are symmetrically positioned along the center of the mounting rod, and a connecting component is arranged between the corresponding assembly and disassembly components and the nuclear phase components, the assembly and disassembly components comprise a first assembly rod for connecting to the connecting component, the nuclear phase component comprises a second assembly rod for connecting to the connecting component, the connecting component comprises a first connecting rod hinged on the mounting rod at the middle, one end of the first connecting rod is hinged to the second connecting rod, the other end of the first connecting rod is hinged to the first slider, the first slider is slidably connected to the first assembly rod, and the end of the second connecting rod is slidably connected to the second assembly rod.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. In this scheme, after the assembly and disassembly mechanism and the phase checking mechanism are moved to the specified position by the walking bracket, the insulating plug is first removed by the assembly and disassembly mechanism, and then the installation rod is rotated to make the phase checking mechanism align with the cable head for phase checking, and then the installation rod is rotated again to install the removed insulating plug by the assembly and disassembly mechanism.

[0010] During the whole process, there is no need for humans to approach the cable head. The phase checking process can be completed through the assembly and disassembly mechanism, the phase checking mechanism and manual remote control, which improves safety.

[0011] 2. The assembly and disassembly components and the phase checking components are all slidingly arranged, which can adapt to the phase checking of multiple cable heads in the ring network cabinet in a wider range, that is, it is adapted to the different distances between the two cable heads to be checked, and by adjusting the angle of the mounting rod, the two sets of disassembly and disassembly components can also correspond to any two sets of cable heads in the ring network cabinet.

[0012] In addition, through the design of the connecting component, when adjusting the position of the assembly and disassembly component, after the first assembly rod slides with the assembly and disassembly component, the linkage action of the first connecting rod and the second connecting rod connected to the first assembly rod can drive the second assembly rod of the core phase component corresponding to the assembly and disassembly component to slide, so that the position adjustment of the assembly and disassembly component and the position adjustment of the core phase component are completely corresponding. It is only necessary to adjust the position of the assembly and disassembly component and then rotate the installation rod 180°, so that the core phase component designed corresponding to the position symmetrically along the center of the installation rod can also be just aligned with the corresponding cable head.

[0013] In this solution, the work efficiency is improved by synchronously adjusting the positions of the assembly and disassembly components and the nuclear phase components.

[0014] Furthermore, the assembly and disassembly component includes a first slide plate slidably connected to the first mounting plate, a first telescopic rod installed on the first slide plate, and an assembly and disassembly component installed at the end of the first telescopic rod, the telescopic direction of the first telescopic rod is perpendicular to the sliding direction of the first slide plate; the first assembly rod is installed on the first slide plate.

[0015] Furthermore, the core phase assembly includes a second slide plate slidably connected to the second mounting plate, a second telescopic rod installed on the second slide plate, and a core phase component installed at the end of the second telescopic rod, the telescopic direction of the second telescopic rod being perpendicular to the sliding direction of the second slide plate; the second assembly rod is installed on the second slide plate.

[0016] Furthermore, the phase checking component includes an insulating tube fixed at the end of the second telescopic rod and a phase checking probe installed in the insulating tube. The insulating tube includes a fixed part and a sliding part slidably connected to the fixed part. A telescopic spring is connected between the sliding part and the fixed part.

[0017] Furthermore, the cross-sections of the fixed part and the sliding part are both truncated cone-shaped, and the end of the fixed part facing the sliding part is its small-diameter end, and the free end of the sliding part is its small-diameter end.

[0018] Furthermore, a bellows is fixed on the outside of the fixed part. The bellows is made of rubber and is sleeved on the outside of the sliding part. An insulating sheet in a circular ring shape is fixed on the end of the bellows.

[0019] Furthermore, the assembly and disassembly mechanism also includes a detection camera installed on the first slide plate, and the detection camera is used to locate the sliding position of the assembly and disassembly component.

[0020] Furthermore, a mounting ring is rotatably connected to the first slide plate, the mounting ring and the first telescopic rod are coaxially arranged, and a detection camera is hinged on the mounting ring. The detection camera is also used to detect the installed and removed insulating plugs.

[0021] Furthermore, a support block is slidably connected to the walking bracket, the support block is N-shaped, the recess in the middle of the support block is used to clamp the mounting rod, a wedge surface is provided at the upper or lower end of the support block, and a support spring is connected between the support block and the walking bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of the overall structure of an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Enlarged view of part A.

[0024] Figure 3 for Figure 1 Zoomed in view of China Section B.

[0025] Figure 4 It is a side view of the support block in the embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the detection camera in the embodiment of the invention.

[0027] In the figure: 1. mounting rod; 2. cable head; 3. clamping claw; 4. insulating block; 5. first telescopic rod; 6. first slide plate; 7. first mounting plate; 8. first assembly rod; 9. first connecting rod; 10. second connecting rod; 11. second assembly rod; 12. second telescopic rod; 13. second slide plate; 14. second mounting plate; 15. support block; 16. support spring; 17. fixing part; 18. sliding part; 19. insulating cylinder; 20. nuclear phase probe; 21. bellows; 22. insulating sheet; 23. gasket; 24. telescopic spring; 25. first slide groove; 26. first slider; 27. second slide groove; 28. second slider; 29. ​​wedge surface; 30. mounting ring; 31. detection camera. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0029] like Figure 1 As shown, the nuclear phase instrument sampling device includes a walking mechanism, an assembly and disassembly mechanism and a nuclear phase mechanism. The walking mechanism includes a walking bracket and a mounting rod 1 rotatably connected to the walking bracket. In the actual design process, the walking bracket can use a trolley in the prior art and set a shelf on the trolley for assembling the mounting rod 1. The assembly and disassembly mechanism and the nuclear phase mechanism are symmetrically installed on both sides of the mounting rod 1 along the rotation center of the mounting rod 1. By rotating the mounting rod 1, the assembly and disassembly mechanism or the nuclear phase mechanism can be switched to align with the cable head 2.

[0030] The assembly and disassembly mechanism is used for assembling and disassembling the insulating plug at the end of the cable head 2. The assembly and disassembly mechanism includes a first mounting plate 7 mounted on the mounting rod 1 and at least two sets of assembly and disassembly components slidably arranged on the first mounting plate 7. In this embodiment, two sets of disassembly components are taken as an example. By sliding the assembly and disassembly components on the first mounting plate 7, the distance between the two sets of disassembly components can be adjusted, thereby adapting to two cable head 2 core phases with different distances.

[0031] Specifically, the first mounting plate 7 is fixed on the mounting rod 1, and the assembly and disassembly components include a first slide plate 6 slidably connected to the first mounting plate 7, a first telescopic rod 5 installed on the first slide plate 6, and an assembly and disassembly component installed at the end of the first telescopic rod 5. The telescopic direction of the first telescopic rod 5 is perpendicular to the sliding direction of the first slide plate 6. The first telescopic rod 5 uses an electric telescopic rod in the prior art. In order to ensure the safety of the operation, the assembly and disassembly component includes an insulating block 4 fixedly connected to the output end of the electric telescopic rod. The length of the insulating block 4 can be designed to be longer, so that a safe distance is met between the energized electric telescopic rod and the cable head 2.

[0032] The assembly and disassembly parts also include a clamping jaw 3 installed at the end of the insulating block 4. The clamping jaw 3 is used to clamp the insulating plug at the end of the cable head 2. The clamping jaw 3 is also made of insulating material. According to actual needs, the insulating plug can be removed by conventional screwing, pulling and other actions in the prior art. Taking the removal of the insulating plug as an example, as long as the clamping jaw 3 clamps the insulating plug, the insulating plug can be pulled out by retracting the first telescopic rod 5. In this case, the first telescopic rod 5 can be fixed on the first slide 6. Taking the screwing of the insulating plug as an example, the first telescopic rod 5 needs to drive the clamping jaw 3 to rotate in order to screw the insulating plug off. At this time, the first telescopic rod 5 needs to be rotatably connected to the first slide 6, and a motor for driving the first telescopic rod 5 to rotate needs to be installed on the first slide 6. The above two methods can be designed according to actual needs.

[0033] The phase-check mechanism includes a second mounting plate 14 mounted on the mounting rod 1 and at least two groups of phase-check components slidably arranged on the second mounting plate 14. In this embodiment, two groups of phase-check components are taken as an example. By sliding the phase-check components on the second mounting plate 14, the distance between the two groups of phase-check components can be adjusted, thereby adapting to the phase-checks of two cable heads 2 with different distances.

[0034] Specifically, the second mounting plate 14 is fixed on the mounting rod 1, and the core phase assembly includes a second slide plate 13 slidably connected to the second mounting plate 14, a second telescopic rod 12 installed on the second slide plate 13, and a core phase component installed at the end of the second telescopic rod 12. The telescopic direction of the second telescopic rod 12 is perpendicular to the sliding direction of the second slide plate 13, and the second telescopic rod 12 is an electric telescopic rod in the prior art.

[0035] Combination Figure 3As shown, the nuclear phase component includes an insulating tube 19 fixed at the end of the second telescopic rod 12 and a nuclear phase probe 20 installed in the insulating tube 19, the insulating tube 19 includes a fixed part 17 and a sliding part 18 slidably connected to the fixed part 17, a telescopic spring 24 is connected between the sliding part 18 and the fixed part 17, the fixed part 17 and the sliding part 18 are both made of insulating materials, the outer side of the telescopic spring 24 is coated with an insulating layer made of insulating materials in the prior art, or the telescopic spring 24 can also be directly made of insulating materials. One end of the fixed part 17 connected to the second telescopic rod 12 is in a closed shape, a gasket 23 is fixed in the sliding part 18, the nuclear phase probe 20 is fixed at the closed end of the fixed part 17, a through hole for the nuclear phase probe 20 to pass through is provided on the gasket 23, and a telescopic spring 24 is sleeved on the outside of the nuclear phase probe 20. The nuclear phase probe 20 is made of a probe used in a nuclear phase instrument in the prior art, and can be made of stainless steel wire. The circuit required to connect the nuclear phase probe 20 can be buried in the side wall of the fixed part 17 and extend from the side of the fixed part 17 close to the second telescopic rod 12. When the end of the sliding part 18 fits with the cable head 2, the second telescopic rod 12 continues to be extended, the fixed part 17 slides relative to the sliding part 18, the telescopic spring 24 contracts, and the fixed part 17 drives the nuclear phase probe 20 to move, so that the nuclear phase probe 20 can be pressed against the conductive rod of the cable head 2 for nuclear phase.

[0036] Combination Figure 2 As shown, in order to improve the working efficiency, in this embodiment, the position adjustment of the assembly and disassembly components is carried out synchronously with the position adjustment of the core phase components. Specifically, the number of assembly and disassembly components and core phase components is the same, and they are all slidably arranged along the length direction of the mounting rod 1. The assembly and disassembly components and core phase components correspond to each other in centrally symmetrical positions along the mounting rod 1, and a connecting component is provided between the corresponding assembly and disassembly components and core phase components. The assembly and disassembly components include a first assembly rod 8 for connecting with the connecting component, and the first assembly rod 8 is fixed on the first slide plate 6. The core phase component includes a second assembly rod 11 for connecting with the connecting component, and the second assembly rod 11 is fixed on the second slide plate 13. The connecting component includes a first connecting rod 9 whose middle part is hinged on the mounting rod 1, one end of the first connecting rod 9 is hinged with the second connecting rod 10, and the other end of the first connecting rod 9 is hinged with the first slider 26. The distance from the middle hinge point of the first connecting rod 9 to the hinge point of the first connecting rod 9 and the second connecting rod 10 is consistent with the distance from the middle hinge point of the first connecting rod 9 to the first slider 26. The first slider 26 is slidably connected to the first assembly rod 8. Specifically, the first assembly rod 8 is provided with a first slide groove 25, and the first slider 26 is slidably connected in the first slide groove 25. The end of the second connecting rod 10 is slidably connected to the second assembly rod 11. Specifically, the end of the second connecting rod 10 is fixed with a second slider 28. The second assembly rod 11 is provided with a second slide groove 27, and the second slider 28 is slidably connected in the second slide groove 27.

[0037] During actual operation, the sliding of the assembly and disassembly components can be controlled in the following two ways: A. By controlling the rotation of the first connecting rod 9, a motor for driving the first connecting rod 9 to rotate is installed on the mounting rod 1. In this solution, the first connecting rod 9 is used as the active part. After the first connecting rod 9 rotates, it can drive the first assembly rod 8 to slide, and at the same time, the second assembly rod 11 is driven to slide through the second connecting rod 10; B. By controlling the sliding of the first slide plate 6, a cylinder for driving the first slide plate 6 to slide is installed on the first mounting plate 7. In this solution, the first slide plate 6 is used as the active part. After the first slide plate 6 slides, it drives the first connecting rod 9 to rotate, and the first connecting rod 9 drives the second assembly rod 11 to slide through the second connecting rod 10.

[0038] Taking the example of the first slide 6 being located on the left side of the mounting rod 1 and the second slide 13 being located on the right side of the mounting rod 1, when the first slide 6 slides to the left, the first connecting rod 9 drives the second connecting rod 10 to move to the right, thereby driving the second slide 13 to slide to the right, so that the first slide 6 and the second slide 13 remain symmetrical after sliding, and then when the assembly and disassembly component is aligned with the cable head 2, after the mounting rod 1 rotates 180°, the core phase component can also be just aligned with the cable head 2, so that the position adjustment of the assembly and disassembly component and the position adjustment of the core phase component can be carried out synchronously.

[0039] When in use, before the insulating plug is removed, the worker can approach the work and adjust the position of the assembly and disassembly assembly according to the distance between the two cable heads 2. Through the design of the connection assembly, the position of the core phase assembly can be adjusted synchronously. The first telescopic rod 5 is extended and retracted to make the clamping claw 3 close to the insulating plug, and then the clamping claw 3 is clamped on the insulating plug, and the worker can move away. Taking the example of directly pulling out the insulating plug, the insulating plug can be removed by directly contracting the first telescopic rod 5. Then contract the first telescopic rod 5 to make the insulating plug away from the cable head 2.

[0040] The mounting rod 1 is rotated 180°, either manually or by driving related equipment (such as a motor), and the phase checking component can be aligned with the cable head 2, and the second telescopic rod 12 is extended to make the insulating tube 19 move toward the direction close to the cable head 2. When the end of the sliding part 18 is in contact with the cable head 2, the second telescopic rod 12 is continued to be extended, and the fixed part 17 slides relative to the sliding part 18. The fixed part 17 drives the phase checking probe 20 to move, so that the phase checking probe 20 can be placed against the conductive rod of the cable head 2 for phase checking.

[0041] After the verification phase is completed, retract the second telescopic rod 12 to make the insulating tube 19 move away from the cable head 2, rotate the installation rod 1 180° again to align the assembly and disassembly assembly with the cable head 2, extend the first telescopic rod 5, and insert the insulating plug on the clamp 3 into the cable head 2.

[0042] In another embodiment of the present invention, Figure 3As shown, the insulating cylinder 19 is used to shield the phase analysis probe 20 during the phase analysis process. In order to ensure the smoothness of the relative sliding of the fixed part 17 and the sliding part 18, in this embodiment, the cross-sections of the fixed part 17 and the sliding part 18 are both truncated cone-shaped, and the end fixed toward the sliding part 18 is its small diameter end, and the free end of the sliding part 18 is its small diameter end. With this design, during the relative sliding of the sliding part 18 and the fixed part 17, there is no actual contact between the side walls of the sliding part 18 and the fixed part 17, thereby reducing friction and reducing jamming. However, such a design will also lead to a gap between the sliding part 18 and the fixed part 17. For this reason, a bellows 21 is fixed to the outside of the fixed part 17. The bellows 21 is made of rubber and is sleeved on the outside of the sliding part 18. An annular insulating sheet 22 is fixed to the end of the bellows 21. The insulating sheet 22 is made of a material with a certain hardness (such as plastic) and is sleeved on the outside of the sliding part 18 through the bellows 21. The insulating sheet 22 can also be against the cable head 2 to close the gap between the sliding part 18 and the fixed part 17, thereby having a better shielding effect on the nuclear phase probe 20.

[0043] In another embodiment of the present invention, each time the mounting rod 1 is rotated 180°, the mounting and disassembling mechanism and the phase checking mechanism can be switched. In order to limit the rotation range of the mounting rod 1, in this embodiment, Figure 4 As shown, a support block 15 is slidably connected to the traveling bracket, the sliding direction of the support block 15 is parallel to the rotation axis of the mounting rod 1, the support block 15 is in a horizontal N-shape, the concave portion in the middle of the support block 15 is used to clamp the mounting rod 1, a wedge surface 29 is provided at the upper or lower end of the support block 15, and a support spring 16 is connected between the support block 15 and the traveling bracket. Figure 4 Taking the example shown in , the wedge surface 29 is arranged at the upper end of the support block 15, and the lower side of the support block 15 supports the mounting rod 1. When the mounting rod 1 needs to be rotated, the support block 15 is manually slid so that the support block 15 no longer supports the mounting rod 1, and then the mounting rod 1 is rotated. The support block 15 can be reset by relying on the reset effect of the support spring 16. When the mounting rod 1 is rotated to the upper side of the support block 15, the support block 15 is pushed to slide by the wedge surface 29, so that the mounting rod 1 passes through the upper side of the support block 15 and reaches the middle recess of the support block 15. At this time, the support block 15 is reset by relying on the reset effect of the support spring 16 and clamps the mounting rod 1.

[0044] In another embodiment of the present invention, Figure 5 As shown, the assembly and disassembly mechanism also includes a detection camera 31 installed on the first slide 6, and the detection camera 31 is used to locate the sliding position of the assembly and disassembly component. Specifically, the detection camera 31 determines the position of the cable head 2 based on the photograph of the cable head 2, and then the control program of the controller in the prior art can be used to control the sliding of the first slide 6 to align the clamp 3 and the cable head 2, thereby improving the adjustment accuracy, reducing the process of multiple fine-tuning required by manual visual observation, and improving work efficiency.

[0045] In another embodiment of the present invention, a mounting ring 30 is rotatably connected to the first slide plate 6, the mounting ring 30 and the first telescopic rod 5 are coaxially arranged, a motor for driving the mounting ring 30 to rotate is installed on the first slide plate 6, a detection camera 31 is hinged on the mounting ring 30, and a motor for driving the detection camera 31 to rotate is installed on the mounting ring 30. When the sliding position of the assembly and disassembly assembly needs to be positioned, the shooting direction of the detection camera 31 is perpendicular to the axis of the mounting ring 30. In this embodiment, the detection camera 31 is also used to detect the assembled and disassembled insulating plug. During the process of the phase checking assembly checking the cable head 2, the insulating plug is removed and located on the clamping jaw 3. The detection camera 31 is rotated so that the shooting direction of the detection camera 31 is toward the direction of the clamping jaw 3, and then the mounting ring 30 is rotated once, so that the detection camera 31 can shoot once along the circumference of the insulating plug. By shooting data, it is observed whether the insulating plug has problems such as wear, scratches or even damage that need to be replaced, so as to avoid leakage caused by poor sealing after the insulating plug is installed again, and the shooting data can be retained for subsequent inspection.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Nuclear phase instrument sampling device, characterized in that: It includes a walking mechanism, an assembly and disassembly mechanism and a phase checking mechanism. The walking mechanism includes a walking bracket and a mounting rod rotatably connected to the walking bracket. The assembly and disassembly mechanism and the phase checking mechanism are symmetrically installed on both sides of the mounting rod along the rotation center of the mounting rod. The assembly and disassembly mechanism includes a first mounting plate installed on the mounting rod and at least two groups of assembly and disassembly components slidably arranged on the first mounting plate. The phase checking mechanism includes a second mounting plate installed on the mounting rod and at least two groups of phase checking components slidably arranged on the second mounting plate. The number of assembly and disassembly components and core phase components is the same, and they are all slidably arranged along the length direction of the mounting rod. The assembly and disassembly components and core phase components are symmetrically positioned along the center of the mounting rod, and a connecting component is provided between the corresponding assembly and disassembly components and core phase components. The assembly and disassembly components include a first assembly rod for connecting to the connecting component, and the core phase component includes a second assembly rod for connecting to the connecting component. The connecting component includes a first connecting rod hinged on the mounting rod in the middle, a second connecting rod hinged on one end of the first connecting rod, and a first slider hinged on the other end of the first connecting rod. The first slider is slidably connected to the first assembly rod, and the end of the second connecting rod is slidably connected to the second assembly rod.

2. The nuclear phase instrument sampling device according to claim 1, characterized in that: The assembly and disassembly component includes a first slide plate slidably connected to a first mounting plate, a first telescopic rod installed on the first slide plate, and an assembly and disassembly component installed at the end of the first telescopic rod, wherein the telescopic direction of the first telescopic rod is perpendicular to the sliding direction of the first slide plate; and the first assembly rod is installed on the first slide plate.

3. The nuclear phase instrument sampling device according to claim 1, characterized in that: The core phase component includes a second slide plate slidably connected to the second mounting plate, a second telescopic rod installed on the second slide plate, and a core phase component installed at the end of the second telescopic rod, the telescopic direction of the second telescopic rod is perpendicular to the sliding direction of the second slide plate; the second assembly rod is installed on the second slide plate.

4. The nuclear phase instrument sampling device according to claim 3 is characterized in that: The phase checking component comprises an insulating cylinder fixed at the end of the second telescopic rod and a phase checking probe installed in the insulating cylinder. The insulating cylinder comprises a fixed part and a sliding part slidably connected to the fixed part. A telescopic spring is connected between the sliding part and the fixed part.

5. The nuclear phase instrument sampling device according to claim 4, characterized in that: The cross-sections of the fixed part and the sliding part are both truncated cone-shaped, and the end fixed toward the sliding part is the small-diameter end, and the free end of the sliding part is the small-diameter end.

6. The nuclear phase instrument sampling device according to claim 4, characterized in that: A bellows is fixed on the outside of the fixing part. The bellows is made of rubber and is sleeved on the outside of the sliding part. An insulating sheet in a circular ring shape is fixed on the end of the bellows.

7. The nuclear phase instrument sampling device according to claim 1, characterized in that: The assembly and disassembly mechanism also includes a detection camera installed on the first slide plate, and the detection camera is used to locate the sliding position of the assembly and disassembly component.

8. The nuclear phase instrument sampling device according to claim 7, characterized in that: The first slide plate is rotatably connected with a mounting ring, the mounting ring and the first telescopic rod are coaxially arranged, the detection camera is hinged on the mounting ring, and the detection camera is also used to detect the installed and removed insulating plugs.

9. The nuclear phase instrument sampling device according to claim 1, characterized in that: A support block is slidably connected to the walking bracket, the support block is N-shaped, the recess in the middle of the support block is used to clamp the installation rod, the upper end or the lower end of the support block is provided with a wedge surface, and a support spring is connected between the support block and the walking bracket.

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