Hole plugging structure and driving tool thereof

Abstract

The invention relates to a hole plugging structure. The hole plugging structure comprises a supporting body and four driving shafts, wherein four positioning holes are formed in the supporting body, one end of each driving shaft is a positioning end, and the other end of each driving shaft is a driving end; the positioning end of each driving shaft correspondingly extends into one positioning hole, and a driving cam is arranged on the outer wall of each driving end; the surface, facing the supporting body, of each driving cam inclines in the axial direction of the corresponding driving shaft to form a lifting face; and each driving shaft has a splicing driving state and a separating driving state, so that the driving cams on the driving shafts positioned in the positioning holes in the supporting body rotates to drive plugging pieces of the hole plugging structure, and each plugging piece sinks or lifts and rotates around a hinged part of the plugging pieces and equipment, switching between the splicing state and the separating state of all the plugging pieces 1 is achieved, and therefore plugging of an open hole in equipment and releasing of plugging of the open hole are conveniently achieved.

Description

technical field [0001] The application belongs to the technical field of hole plugging structure design and its driving tool, and in particular relates to a hole plugging structure and its driving tool. Background technique [0002] Borescope holes are opened in many places on the engine casing, and the borescope holes are mostly blocked with plugs. This technical solution has the following defects: [0003] 1) It is necessary to install a corresponding plug mounting seat on the corresponding part of the engine casing, and the plug mounting seat protrudes higher outside the casing, which affects the outer dimension of the casing; [0004] 2) Most of the plug seats are directly welded on the surface of the casing, the structural stress is large, fatigue cracks are easy to occur, the inspection cost is high, and there are great safety hazards; [0005] 3) The holes of different borehole detectors have different lengths, and the lengths of the corresponding plugs are also inco...

AI Technical Summary

Problems solved by technology

[0003] 1) It is necessary to install a corresponding plug mounting seat on the corresponding part of the engine casing, and the plug mounting seat protrudes higher outside the casing, which affects the outer dimension of the casing;

[0004] 2) Most of the plug seats are directly welded on the surface of the casing, the structural stress is large, fatigue cracks are easy to occur, the inspection cost is high, and there are great safety hazards;

[0005] 3) The holes of different borehole detectors have different lengths, and the lengths of the corresponding plugs are also inconsistent. In the case of many borehole detector holes and their corresponding plugs, it is easy to install them incorrectly, causing the plugs to protrude or sink in the holes In the probe hole, it affects the aerodynamic performance inside the casing;

[0006] 4) The disassembly and assembly of the plug and its sealing are difficult

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