Disassembling and assembling structure for airplane storage battery shield door

Abstract

The utility model discloses a dismounting and mounting structure for an airplane storage battery shield door, which relates to the technical field of aviation maintenance, and comprises a sleeve part and a holding part, the sleeve part comprises a sleeve body with a cylindrical structure, a through dismounting and mounting hole is arranged in the sleeve body, the sleeve body is provided with a driving block and a clamping block, the driving block is arranged in the dismounting and mounting hole, and the clamping block is arranged in the dismounting and mounting hole. The driving block is arranged in the mounting and dismounting hole, extends along the inner circumferential side of the mounting and dismounting hole and is configured to be capable of clamping an object so as to lock the object; the clamping block is arranged at the end part of the dismounting hole and extends along the peripheral side of the dismounting hole, and the clamping block is configured to elastically deform towards the outer side of the dismounting hole and extrude an object positioned on the inner side of the clamping block; the holding part is connected to the peripheral side of the sleeve body for holding. According to the disassembly and assembly structure, by arranging the sleeve part, the gasket and other objects can be locked and fixed in the clamping block, so that the disassembly and assembly structure can be turned over and moved at will after the fastener is disassembled, and it is guaranteed that the fastener cannot be separated from the disassembly and assembly structure.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation maintenance, in particular to a disassembly and assembly structure for an aircraft battery shield door. Background Art

[0002] At present, the main battery and APU lithium-ion battery of the Boeing 787 are installed in the explosion-proof protective cover, and the rear of the explosion-proof protective cover is generally equipped with an explosion piece, which is connected to the release pipeline to discharge the battery explosion residue outside the fuselage. When the aircraft is repeatedly inspected and the battery is replaced, the explosion-proof protective cover needs to be opened to access the main battery, APU battery and explosion-proof piece inside.

[0003] The door of the explosion-proof protective cover is fixed by fasteners consisting of screws, nuts and washers. Since the main battery and APU battery of the Boeing 787 are located in the area close to the floor of the front and rear electronic compartments, it is often difficult for workers to access the fasteners of the door. When workers remove the fasteners of the door, due to limited operating space and lack of special disassembly and assembly tools, fasteners or disassembly and assembly tools are easy to fall on the fuselage, causing workers to spend a lot of time and manpower to pick them up, affecting the efficiency and overall progress of maintenance and inspection, and even affecting the normality of flights. Utility Model Content

[0004] The utility model aims to provide a disassembly and assembly structure for an aircraft battery shield door, which can pass through a narrow space, remove fasteners on the shield door, and enable the removed fasteners to be transferred with the disassembly and assembly structure, thereby solving the problem that it is difficult to remove fasteners from the existing aircraft shield door, and the fasteners or disassembly tools are easy to fall off.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A disassembly and assembly structure for an aircraft battery shield door comprises a sleeve portion and a grip portion, wherein:

[0007] The sleeve portion comprises a sleeve body in a cylindrical structure, a through disassembly hole is arranged in the sleeve body, and the sleeve body is provided with a driving block and a clamping block, the driving block is arranged in the disassembly hole and extends along the inner circumference of the disassembly hole, and the driving block is configured to clamp an object to lock the object; the clamping block is arranged at the end of the disassembly hole and extends along the outer circumference of the disassembly hole, and the clamping block is configured to be elastically deformed toward the outside of the disassembly hole and squeeze the object located inside the clamping block;

[0008] The holding portion is connected to the outer peripheral side of the sleeve body and extends along the direction from the driving block to the clamping block for holding.

[0009] In some embodiments, the driving block includes a plurality of driving bodies connected in sequence, and a clamping groove adapted to the outer contour of the object to be clamped is formed between two adjacent driving bodies.

[0010] In some embodiments, a first stop block is provided in the disassembly hole and arranged along its inner circumference, and the first stop block is located at an end of the driving block away from the clamping block, and the first stop block extends toward the inside of the disassembly hole so that the first stop block protrudes radially from the driving block in the disassembly hole.

[0011] In some embodiments, a second stop block is provided between the driving block and the clamping block, and the second stop block is arranged along the inner circumference of the disassembly hole, and the second stop block extends toward the inside of the disassembly hole, so that the second stop block radially protrudes from the clamping block in the disassembly hole, and the driving block radially protrudes from the second stop block in the disassembly hole.

[0012] In some embodiments, the clamping block includes a plurality of clamping members, the plurality of clamping members are arranged along the circumference of the disassembly hole, and an air avoidance groove is provided between two adjacent clamping members, the air avoidance groove penetrates the clamping block in the radial direction of the disassembly hole.

[0013] In some embodiments, the depth direction of the air avoidance groove is parallel to the axial direction of the disassembly hole.

[0014] In some embodiments, a guide block is provided between the driving block and the second stop block, and the guide block is arranged along the inner circumference of the disassembly hole and is inclined to the second stop block in the axial direction of the disassembly hole to guide the object into the driving block.

[0015] In some embodiments, a connecting block is provided between the driving block and the first stop block, and the connecting block is arranged along the inner circumference of the disassembly hole, and the connecting block radially protrudes from the clamping block in the disassembly hole, and the first stop block radially protrudes from the connecting block in the disassembly hole.

[0016] In some embodiments, the gripping portion includes an extension block and a gripping block, wherein:

[0017] The extension block is connected to the outer peripheral side of the sleeve body and extends from the driving block to the clamping block;

[0018] The holding block is connected to one end of the extending block away from the sleeve portion and is arranged to intersect with the extending block.

[0019] Compared with the prior art, the disassembly and assembly structure for aircraft battery shield door in the embodiment of the utility model has the following beneficial effects:

[0020] The disassembly and assembly structure is provided with a sleeve portion, and a driving block and a clamping block are arranged in the sleeve portion. The driving block is used to clamp objects, such as nuts, nuts, etc., and lock the objects, so that the fasteners locked to the shield door can be screwed out and detached from the shield door; at the same time, the clamping block that can be elastically deformed is used to hold objects, such as gaskets, etc., so that the objects can be placed inside the clamping block, squeeze the clamping block and make the clamping block elastically deform toward the outside of the disassembly and assembly hole, and the clamping block squeezes the objects located on the inner side of the clamping block. In this way, the gasket and other objects are locked and fixed in the clamping block, not only the fasteners locked to the shield door can be completely taken out, but also, after the gasket and other objects are locked by the clamping block, the objects clamped by the driving block, such as nuts, nuts, etc., are sealed in the disassembly and assembly hole, so that the disassembly and assembly structure can be turned over and moved at will after the fasteners are removed, so that the disassembly and assembly structure can be moved out from the disassembly position, and it is ensured that the fasteners will not detach from the disassembly and assembly structure.

[0021] Moreover, this disassembly and assembly structure can also be used to assemble fasteners. When installing fasteners, the nut will be clamped by the driving block, and the gasket will be locked and fixed by the clamping block, so that the nut and the gasket are sealed in the disassembly and assembly hole. In this way, the staff can use this disassembly and assembly structure to move the nut and the gasket to the installation position of the shield door, and through the screw rod, the screw rod passes through the gasket and the nut in turn through the disassembly and assembly hole to complete the fastening and locking of the shield door. Since the disassembly and assembly hole of this disassembly and assembly structure is a through hole, the screw rod can pass through the sleeve part along the axial direction of the sleeve body, and the sleeve part will not hinder the screwing in of the screw rod, so that this disassembly and assembly structure can be adapted to screw rods of different lengths and has a wider range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the disassembly and assembly structure in the embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A magnified view of middle;

[0024] Figure 3 It is a cross-sectional schematic diagram of the disassembly and assembly structure in the embodiment of the utility model;

[0025] Figure 4 yes Figure 3 Enlarged view of B.

[0026] In the figure, 1, sleeve part; 10, sleeve body; 11, disassembly hole; 12, drive block; 120, drive body; 121, clamping groove; 13, clamping block; 130, clamping member; 131, air avoidance groove; 14, first stop block; 15, connecting block; 16, second stop block; 17, guide block; 2, gripping part; 20, extension block; 21, gripping block. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of 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 utility model can be understood according to the specific circumstances.

[0029] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are 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 cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be understood that the terms "first" and "second" are used in the present invention for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0031] Example

[0032] refer to Figure 1-4The utility model discloses a disassembly and assembly structure for an aircraft battery shield door, which is suitable for removing the shield door of a Boeing 787 aircraft. The structure comprises a sleeve portion 1 and a grip portion 2, wherein the sleeve portion 1 is used for removing and installing fasteners of the shield door, and the grip portion 2 is used for a staff member to grip in order to rotate the sleeve portion 1.

[0033] The sleeve portion 1 includes a sleeve body 10 in a cylindrical structure, and a through disassembly hole 11 is provided in the sleeve body 10. The disassembly hole 11 is a circular hole and penetrates the sleeve body 10 along the axial direction of the sleeve body 10. The sleeve body 10 is provided with a driving block 12 and a clamping block 13, wherein the driving block 12 is arranged in the disassembly hole 11 and extends along the inner circumference of the disassembly hole 11, and the driving block 12 is configured to clamp an object to lock the object; the clamping block 13 is arranged at the end of the disassembly hole 11 and extends along the outer circumference of the disassembly hole 11, and the clamping block 13 is configured to be elastically deformed toward the outer side of the disassembly hole 11 and squeeze the object located inside the clamping block 13. The gripping portion 2 is connected to the outer circumference of the sleeve body 10 and extends in the direction from the driving block 12 to the clamping block 13 for gripping.

[0034] It should be noted that the shield door of the Boeing 787 is generally locked by fasteners such as screws, nuts and washers. The screw head is on the front of the shield door, that is, the end face that the staff faces, and the nut and washer are on the back of the shield door. The bottom of the shield door is close to the wall of the electronic compartment and has a relatively narrow gap.

[0035] The disassembly structure can extend from the aforementioned gap to the back of the shield door, clamp the gasket on the back of the shield door through the clamping block 13 of the sleeve part 1, and clamp the nut on the back of the shield door through the driving block 12 of the sleeve part 1, so that when the shield door is removed, the nut on the back of the shield door can be locked and fixed by the driving block 12. In this way, whether the disassembly structure is rotated or the screw is rotated by other disassembly tools, the screw and the nut can be separated, thereby removing the fastener of the shield door. While the driving block 12 clamps the nut, the gasket that cooperates with the nut to tighten the shield door will enter the clamping block 13, squeeze the inner side of the clamping block 13, so that the clamping block 13 is elastically deformed toward the outer side of the disassembly hole 11, and a reaction force is applied to the gasket located on the inner side of the clamping block 13, squeezing the object located on the inner side of the clamping block 13, so that the gasket is locked and fixed in the clamping block 13.

[0036] It can be understood that objects such as gaskets are locked and fixed in the clamping block, which not only allows the fasteners locked on the back of the shield door to be completely removed, but also, after the gaskets and other objects are locked by the clamping block 13, the objects clamped by the driving block 12, such as nuts, are sealed in the disassembly hole 11, so that the disassembly structure can be turned over and moved at will after the fasteners are removed, so that the disassembly structure can be moved out of the disassembly position and ensure that the fasteners will not detach from the disassembly structure.

[0037] In order to squeeze the clamping block 13 when the gasket is placed inside, so that the clamping block 13 can be elastically deformed toward the outside of the disassembly hole 11, the inner diameter formed by the clamping block 13 arranged around the disassembly hole 11 is generally smaller than the outer diameter of the object clamped by the clamping member 130, that is, the outer diameter of the gasket.

[0038] It should be noted that, in addition to being able to remove the fasteners on the back of the shield door, this disassembly and assembly structure can also be used to assemble the fasteners to the back of the shield door. The same principle as removing the fasteners is that when installing the fasteners, the nut will be clamped by the driving block 12, and the gasket will be locked and fixed by the clamping block 13, so that the nut and the gasket are sealed in the disassembly and assembly hole 11. In this way, the staff can use this disassembly and assembly structure to move the nut and the gasket to the back of the shield door. By inserting the screw from the front of the shield door, the screw passes through the gasket and the nut in turn through the disassembly and assembly hole 11, and the shield door is tightened and locked. Moreover, the disassembly hole 11 of the present disassembly structure is a through hole. Therefore, when installing the screw, the screw can pass through the sleeve portion 1 along the axial direction of the sleeve body 10, and pass from the front side of the sleeve portion 1 to the back side of the sleeve portion 1, so as to ensure that the sleeve portion 1 will not hinder the screwing in of the screw. Moreover, based on the through design of the disassembly hole 11, the present disassembly structure can be adapted to screws of different lengths, so that the present disassembly structure can have a wider range of applicability.

[0039] refer to Figure 1-4 In some embodiments, the driving block 12 includes a plurality of driving bodies 120 connected in sequence, wherein the plurality of driving bodies 120 are evenly arranged along the inner circumference of the disassembly hole 11, and a clamping groove 121 adapted to the outer contour of the object to be clamped is formed between two adjacent driving bodies 120.

[0040] It is understandable that the shape design of the driving body 120 is diverse. For example, the driving body 120 can be designed in the shape of an inner hexagonal sleeve or an inner dodecagonal sleeve, so that the clamping groove 121 forms an inverted triangle groove structure to match the nut of the fastener. Of course, according to the shape change of the nut used by the fastener, the shape of the driving body 120 is also changed accordingly to ensure that the clamping groove 121 formed between two adjacent driving bodies 120 can be adapted to the outer contour of the object to be clamped, so that the clamped object can be locked in the driving block 12 by the driving body 120.

[0041] The clamping block 13 of the disassembly structure can be squeezed to produce elastic deformation, and based on the elastic deformation, a reaction force is applied to the object squeezing it, so that the object (gasket) is clamped and fixed in the clamping block 13. The structure of the clamping block 13 to achieve elastic deformation is various, refer to Figure 1In some embodiments, the clamping block 13 includes a plurality of clamping members 130, which are arranged along the circumference of the disassembly hole 11, and an air avoidance groove 131 is provided between two adjacent clamping members 130, the air avoidance groove 131 penetrates the clamping block 13 in the radial direction of the disassembly hole 11, and the depth direction of the air avoidance groove 131 is parallel to the axial direction of the disassembly hole 11.

[0042] The clamping block 13 is divided into a plurality of clamping parts 130 by the air avoidance groove 131, so that each clamping part 130 has a certain elastic deformation ability. When the gasket is embedded in the clamping block 13, each clamping part 130 can be squeezed open by the gasket, so that each clamping part 130 is elastically deformed toward the outside of the disassembly hole 11, thereby expanding the aperture of the hole enclosed by each clamping part 130 to match the outer diameter of the gasket, so that the gasket is clamped and fixed by each clamping part 130.

[0043] refer to Figure 1-4 In some embodiments, a first stop block 14 is provided in the disassembly hole 11 along its inner circumference, and the first stop block 14 is located at one end of the driving block 12 away from the clamping block 13, and the first stop block 14 extends toward the inside of the disassembly hole 11, so that the first stop block 14 protrudes from the driving block 12 in the radial direction of the disassembly hole 11.

[0044] By providing the first stop block 14, after the nut enters the driving block 12, the axial displacement of the driving block 12 in the disassembly hole 11 is limited by the first stop block 14, so that the nut can only move forward until it abuts against the end face of the first stop block 14 facing the driving block 12, so that in the axial direction of the disassembly hole 11, one end of the object is limited by the first stop block 14, and the other end is limited by the object fixed by the clamping block 13, so that the object in the disassembly hole is sealed in the sleeve portion 1 and will not fall off from the sleeve portion 1.

[0045] It should be noted that the first stop block 14 protrudes from the driving block 12, which means that the inner diameter of the hole enclosed by the first stop block 14 is smaller than the inner diameter of the hole enclosed by the driving block 12, so that in the radial direction of the disassembly hole 11, the first stop block 14 is closer to the central axis position of the disassembly hole 11 than the driving block 12, so that the first stop block 14 protrudes from the driving block 12.

[0046] refer to Figure 1-4 In some embodiments, a connecting block 15 is provided between the driving block 12 and the first stop block 14, and the connecting block 15 is arranged along the inner circumference of the disassembly hole 11, and the connecting block 15 protrudes radially from the clamping block 13 in the radial direction of the disassembly hole 11, and the first stop block 14 protrudes radially from the connecting block 15 in the radial direction of the disassembly hole 11.

[0047] By providing the connection block 15, the drive block 12, the connection block 15 and the first stop block 14 can form spaces of different apertures. When the disassembly tool is used to disassemble the screw, the screw head of the screw can be placed in the space enclosed by the connection section, and the nut and the gasket are correspondingly placed in the space enclosed by the drive block 12 and the clamping block 13, so that the disassembly structure can also be applied to the disassembly link of one end of the screw, expanding the scope of use of the disassembly structure.

[0048] Generally speaking, the outer diameter of the washer used for fastening is larger than the outer diameter of the nut. In order to fix the nut and the washer in the driving block 12 and the clamping block 13 respectively, refer to Figure 1-4 In some embodiments, a second stop block 16 is provided between the driving block 12 and the clamping block 13. The second stop block 16 is arranged along the inner circumference of the disassembly hole 11, and the second stop block 16 extends toward the inside of the disassembly hole 11, so that the second stop block 16 protrudes from the clamping block 13 in the radial direction of the disassembly hole 11, and the driving block 12 protrudes from the second stop block 16 in the radial direction of the disassembly hole 11. In this way, similar to the first stop block 14, after the gasket enters the clamping block 13, the axial displacement of the driving block 12 in the disassembly hole 11 is limited by the second stop block 16, so that the gasket can only move forward to abut against the end face of the second stop block 16 facing the clamping block 13.

[0049] In addition, a guide block 17 may be provided between the driving block 12 and the second stop block 16. The guide block 17 is arranged along the inner circumference of the disassembly hole 11 and is inclined to the second stop block 16 in the axial direction of the disassembly hole 11 to guide objects into the driving block 12 so that the nut can more easily enter the space enclosed by the driving block 12.

[0050] refer to Figure 1-4 In some embodiments, the holding portion 2 includes an extension block 20 and a holding block 21, wherein the extension block 20 is connected to the outer peripheral side of the sleeve body 10 and extends in the direction from the driving block 12 to the clamping block 13; the holding block 21 is connected to the end of the extension block 20 away from the sleeve portion 1 and is arranged to intersect with the extension block 20. In this way, the staff can grasp the holding block 21 and lengthen the force arm of the sleeve portion 1 through the extension block 20, so that the disassembly and assembly structure is more labor-saving and easy to operate when removing and installing fasteners.

[0051] In summary, the embodiment of the utility model provides a disassembly structure for an aircraft battery shield door, which is provided with a sleeve portion 1, and a driving block 12 and a clamping block 13 are arranged in the sleeve portion 1. The driving block 12 is used to clamp an object, such as a nut, a nut, etc., and the object can be driven to rotate, so that the fastener locked on the shield door can be screwed out and detached from the shield door; at the same time, the clamping block 13 that can be elastically deformed is used to hold an object, such as a gasket, etc., so that the object can be placed inside the clamping block 13, squeeze the clamping block 13 and make the clamping block 13 move toward the disassembly hole 1 1 is elastically deformed, and the clamping block 13 squeezes the object located on the inner side of the clamping block 13. In this way, the gasket and other objects are locked and fixed in the clamping block 13, not only the fastener locked to the shield door can be completely taken out, but also, after the gasket and other objects are locked by the clamping block 13, the objects clamped by the driving block 12, such as nuts and nuts, are sealed in the disassembly hole 11, so that the disassembly structure can be turned over and moved at will after the fastener is removed, so that the disassembly structure can be moved out from the disassembly position, and it is ensured that the fastener will not be separated from the disassembly structure.

[0052] Moreover, this disassembly and assembly structure can also be used for assembling fasteners. When installing fasteners, the nut will be clamped by the driving block 12, and the gasket will be locked and fixed by the clamping block 13, so that the nut and the gasket are sealed in the disassembly and assembly hole 11. In this way, the staff can use this disassembly and assembly structure to move the nut and the gasket to the installation position of the shield door, and through the screw rod, the screw rod passes through the gasket and the nut in turn through the disassembly and assembly hole 11 to complete the fastening and locking of the shield door. Since the disassembly and assembly hole 11 of the present disassembly and assembly structure is a through hole, the screw rod can pass through the sleeve portion 1 along the axial direction of the sleeve body 10, and the sleeve portion 1 will not hinder the screwing in of the screw rod, so that the present disassembly and assembly structure can be adapted to screw rods of different lengths and has a wider range of applicability.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A disassembly and assembly structure for an aircraft battery shield door, characterized in that: It comprises a sleeve portion and a grip portion, wherein: The sleeve portion comprises a sleeve body in a cylindrical structure, a through disassembly hole is arranged in the sleeve body, and the sleeve body is provided with a driving block and a clamping block, the driving block is arranged in the disassembly hole and extends along the inner circumference of the disassembly hole, and the driving block is configured to clamp an object to lock the object; the clamping block is arranged at the end of the disassembly hole and extends along the outer circumference of the disassembly hole, and the clamping block is configured to be elastically deformed toward the outside of the disassembly hole and squeeze the object located inside the clamping block; The holding portion is connected to the outer peripheral side of the sleeve body and extends along the direction from the driving block to the clamping block for holding.

2. The disassembly and assembly structure according to claim 1, characterized in that: The driving block comprises a plurality of driving bodies connected in sequence, and a clamping groove adapted to the outer contour of the object to be clamped is formed between two adjacent driving bodies.

3. The disassembly and assembly structure according to claim 1, characterized in that: A first stop block is provided in the disassembly hole along its inner circumference, and the first stop block is located at an end of the driving block away from the clamping block, and the first stop block extends toward the inside of the disassembly hole so that the first stop block protrudes radially from the driving block in the disassembly hole.

4. The disassembly and assembly structure according to claim 3, characterized in that: A connecting block is provided between the driving block and the first stop block, and the connecting block is arranged along the inner circumference of the disassembly hole. The connecting block protrudes radially from the clamping block in the disassembly hole, and the first stop block protrudes radially from the connecting block in the disassembly hole.

5. The disassembly and assembly structure according to claim 1, characterized in that: A second stop block is provided between the driving block and the clamping block. The second stop block is arranged along the inner circumference of the disassembly hole and extends toward the inside of the disassembly hole, so that the second stop block radially protrudes from the clamping block in the disassembly hole, and the driving block radially protrudes from the second stop block in the disassembly hole.

6. The disassembly and assembly structure according to claim 5, characterized in that: A guide block is provided between the driving block and the second stop block. The guide block is arranged along the inner circumference of the disassembly hole and is inclined to the second stop block in the axial direction of the disassembly hole to guide objects to enter the driving block.

7. The disassembly and assembly structure according to claim 1, characterized in that: The clamping block comprises a plurality of clamping members, which are arranged along the circumference of the disassembly hole, and an air avoidance groove is provided between two adjacent clamping members, and the air avoidance groove penetrates the clamping block in the radial direction of the disassembly hole.

8. The disassembly and assembly structure according to claim 7, characterized in that: The depth direction of the air-avoiding groove is parallel to the axial direction of the disassembly hole.

9. The disassembly and assembly structure according to claim 1, characterized in that: The gripping portion includes an extension block and a gripping block, wherein: The extension block is connected to the outer peripheral side of the sleeve body and extends from the driving block to the clamping block; The holding block is connected to one end of the extending block away from the sleeve portion and is arranged to intersect with the extending block.

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