Fixing assembly

Abstract

The utility model provides a fixing assembly which can reduce assembling and disassembling resistance and restrain damage during disassembling when a heat insulation and sound insulation material and the like are kept on a frame of an aircraft and the like. The fixing assembly comprises a fixing nail, the fixing nail is provided with a positioning blocking piece, a first conical tooth and a second conical tooth, the first conical tooth is located on one side of the positioning blocking piece and provided with an axial end face and a peripheral face reducing towards one side, and the second conical tooth is located on the other side of the positioning blocking piece and provided with an axial end face and a peripheral face reducing towards the other side; a snap having a first pawl portion including a first pawl having an axial end surface and an inner peripheral surface having a diameter expanding from the axial end surface toward the other side, the snap being elastically deformable in the radial direction to engage or disengage the axial end surfaces of the first pawl and the first bevel teeth; and a gasket having a second pawl portion including a second pawl having an axial end surface and an inner peripheral surface having a diameter expanding from the axial end surface toward one side, the gasket being elastically deformable in the radial direction to engage or disengage the axial end surfaces of the second pawl and the second bevel gear.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixed assembly. BACKGROUND

[0002] In the past, there is a kind of integral plastic stud fastener suitable for the field of aircraft, which is divided into a first part and a second part by a positioning wall in the axial direction, wherein the first part includes a plurality of axially arranged retaining elements in the shape of a cone and compressible, and the second part includes a flexible tongue piece. When installing, the second part is passed through the through hole of the frame of the aircraft or the like, and the periphery of the through hole is clamped by the tongue piece and the positioning wall, in this state, the first part penetrates the thermal insulation sound insulation layer or the like, and the penetrated part is clamped through the opening of the gasket smaller than the maximum outer diameter of the retaining element to the thermal insulation sound insulation layer or the like, so as to realize the fixation of the thermal insulation sound insulation layer or the like relative to the frame of the aircraft (see patent document 1).

[0003] Patent document 1: CN106567878A

[0004] In the above-mentioned integral plastic stud fastener, when installing, the retaining elements of the first part penetrate the opening of the gasket smaller than the maximum outer diameter of the retaining element from the small diameter side by extrusion deformation, the resistance is larger, on the other hand, when disassembling, the opening of the gasket penetrated by the first part needs to first pass the part with the largest outer diameter of the retaining element, and the through hole of the frame or the like penetrated by the second part needs to first pass the part with the largest outer diameter of the tongue piece, the resistance is larger, and it is easy to cause damage to the fastener, gasket and the like. UTILITY MODEL CONTENTS

[0005] The utility model is completed in view of the above problems, and aims to provide a fixed assembly, which can reduce the installation and disassembly resistance when the thermal insulation sound insulation material or the like is kept in the frame of the aircraft, and can inhibit the damage during disassembly.

[0006] To achieve the above object, the utility model provides a fixed component, include: fixed nail, this fixed nail has fixed nail positioning baffle, first bevel gear and second bevel gear, the fixed nail positioning baffle is in the midway of the axial of fixed nail protrude to the radial outside, the first bevel gear is located in the axial one side of fixed nail positioning baffle, and has axial end face and the outer periphery from this axial end face towards one side shrinkage of diameter, the second bevel gear is located in the axial other side of fixed nail positioning baffle, and has axial end face and the outer periphery from this axial end face towards other side shrinkage of diameter, buckle, this buckle can detachably cover in fixed nail, and have first pawl portion, and this first pawl portion includes the first pawl with axial end face and the inner periphery from this axial end face towards other side expansion of diameter, and can be elastically deformed in the radial and make the axial end face of first pawl and the axial end face of first bevel gear each other clamping or unclamping, and gasket, this gasket can detachably cover in fixed nail, and have second pawl portion, and this second pawl portion includes the second pawl with axial end face and the inner periphery from this axial end face towards one side expansion of diameter, and can be elastically deformed in the radial and make the axial end face of second pawl and the axial end face of second bevel gear each other clamping or unclamping.

[0007] According to the fixed component of the utility model, when the heat insulation and sound insulation material is kept in the frame of the airplane, the buckle and the fixed nail positioning baffle can clamp the frame, the fixed component is not easy to fall off during installation, and when the buckle and the gasket are covered in the state that the fixed nail passes through the through hole of the frame, the inclination directions of the inner periphery of the first pawl and the outer periphery of the first bevel gear are the same, the inclination directions of the inner periphery of the second pawl and the outer periphery of the second bevel gear are the same, the buckle can move along the first bevel gear smoothly, the gasket can move along the second bevel gear smoothly, the installation resistance is small, after installation, the axial end face of the first pawl of the buckle can be clamped with the axial end face of the first bevel gear, the axial end face of the second pawl of the gasket can be clamped with the axial end face of the second bevel gear, the self-locking effect is formed, the heat insulation and sound insulation material can be kept in the frame stably, on the other hand, by elastically deforming the first pawl portion of the buckle to unclamp the axial end face of the first pawl and the axial end face of the first bevel gear, and by elastically deforming the second pawl portion of the gasket to unclamp the axial end face of the second pawl and the axial end face of the second bevel gear, the dismounting resistance is small, and the dismounting is simple and easy, the damage during dismounting can be inhibited, and the fixed component is protected.

[0008] In addition, in the fixed component of the utility model, preferably, at least the first bevel gear of the first bevel gear and the first pawl is arranged in the axial direction to form a plurality of, and / or, at least the second bevel gear of the second bevel gear and the second pawl is arranged in the axial direction to form a plurality of.

[0009] The fixing assembly can flexibly cope with frames, heat insulation and sound insulation materials with different thicknesses.

[0010] In addition, in the fixing assembly, the first bevel gear and the second bevel gear are preferably formed at a local part of the circumference of the fixing nail.

[0011] According to the fixing assembly, when installing and dismounting, the part other than the first bevel gear and the second bevel gear of the fixing nail can be gripped, and injury is not easy to occur.

[0012] In addition, in the fixing assembly, the first bevel gear and the second bevel gear are preferably formed at the same position in the circumferential direction.

[0013] In addition, in the fixing assembly, the outer circumferential surface of the part other than the first bevel gear and the second bevel gear of the fixing nail corresponding to the first bevel gear and the second bevel gear in the axial direction is preferably a cylindrical surface.

[0014] According to the fixing assembly, when installing and dismounting, the cylindrical surface in the outer circumferential surface of the fixing nail can be gripped, and injury is not easy to occur.

[0015] In addition, in the fixing assembly, the first bevel gear and the second bevel gear are preferably located inside the circle where the cylindrical surface is located.

[0016] According to the fixing assembly, when installing and dismounting, the first bevel gear and the second bevel gear are less likely to be touched by the operator and are not easy to be injured.

[0017] In addition, in the fixing assembly, the buckle is preferably in a cylindrical shape.

[0018] In addition, in the fixing assembly, the buckle has a first open ring part, which is in an open ring shape surrounding the fixing nail when viewed in the axial direction of the fixing nail, the first pawl part is arranged at the opening of the first open ring part and can be elastically rotated relative to the main part along the axis extending transversely to the axial direction of the fixing nail and located at the other side of the first open ring part, and the buckle further has a buckle side positioning flange protruding from the end of the other side of the first open ring part and the first pawl part towards the radial outside.

[0019] According to the fixing assembly, the buckle has a simple structure and is easy to manufacture.

[0020] Further, in the fixing assembly of the utility model, preferably the first pawl part is in whole plate shape, and extends from the other side to the one side, towards the direction close to the center line of the fixing nail.

[0021] According to the fixing assembly of the utility model, when installing, the engagement force of the first pawl and the first bevel gear can be increased, on the other hand, when disassembling, the engagement of the axial end face of the first pawl and the axial end face of the first bevel gear can be conveniently released by the first unlocking sheet.

[0022] Further, in the fixing assembly of the utility model, preferably the gasket has a second open ring part in the center part, the second open ring part is in open ring shape around the fixing nail when observing along the axial direction of the fixing nail, the second pawl part is arranged at the opening of the second open ring part, can be elastically rotated relative to the main part around the axis extending cross the axial direction of the fixing nail and located at the one side of the second open ring part, the gasket further has a gasket side positioning baffle, the gasket side positioning baffle protrudes from the end of the one side of the second open ring part and the second pawl part to the radial outer side.

[0023] According to the fixing assembly of the utility model, the structure of the gasket is simple, and easy to manufacture.

[0024] Further, in the fixing assembly of the utility model, preferably the second pawl part is in whole plate shape, and extends from the one side to the other side, towards the direction close to the center line of the fixing nail, the gasket further has a second unlocking sheet, the second unlocking sheet is arranged at the second pawl part, and extends from the one side to the other side, towards the direction away from the center line of the fixing nail.

[0025] According to the fixing assembly of the utility model, when installing, the engagement force of the second pawl and the second bevel gear can be increased, on the other hand, when disassembling, the engagement of the axial end face of the second pawl and the axial end face of the second bevel gear can be conveniently released by the second unlocking sheet.

[0026] Further, in the fixing assembly of the utility model, preferably the gasket further has a turn-up, the turn-up is folded from the outer periphery of the gasket to the other side, and extends from the one side to the other side, towards the direction away from the center line of the fixing nail.

[0027] According to the fixing assembly of the utility model, when installing and disassembling, by means of the turn-up, the gasket can be conveniently moved, and the edge deformation of the gasket due to stress can be avoided.

[0028] (utility model effect)

[0029] According to the utility model, when the heat insulation and sound insulation material and the like is kept on the frame and the like of the airplane, the buckle and the fixing nail are used to position the blocking piece to hold the frame and the like, the fixed assembly is not easy to fall off in the middle of installation, and when the buckle and the gasket are sleeved in the state that the fixing nail passes through the through hole of the frame and the like, the inclination directions of the inner circumferential surface of the first pawl and the outer circumferential surface of the first bevel gear are same, the inclination directions of the inner circumferential surface of the second pawl and the outer circumferential surface of the second bevel gear are same, the buckle can move along the first bevel gear smoothly, the gasket can move along the second bevel gear smoothly, the installation resistance is small, after installation in place, the axial end surface of the first pawl of the buckle can be engaged with the axial end surface of the first bevel gear, the axial end surface of the second pawl of the gasket can be engaged with the axial end surface of the second bevel gear, the self-locking effect is formed, the heat insulation and sound insulation material and the like can be kept on the frame and the like stably, on the other hand, by making the first pawl part of the buckle elastically deformed to release the engagement of the axial end surface of the first pawl and the axial end surface of the first bevel gear, and making the second pawl part of the gasket elastically deformed to release the engagement of the axial end surface of the second pawl and the axial end surface of the second bevel gear, the dismounting resistance is small, and simple and easy, the damage during dismounting can be inhibited, and the fixed assembly is protected. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the perspective view of the fixed assembly of the embodiment of the utility model.

[0031] Figure 2 It is the perspective view of the fixed nail included in the fixed assembly of the embodiment of the utility model.

[0032] Figure 3 It is the perspective view of the buckle included in the fixed assembly of the embodiment of the utility model.

[0033] Figure 4 It is the side view of the buckle included in the fixed assembly of the embodiment of the utility model.

[0034] Figure 5 It is the section view along the A-A arrow of Figure 4 .

[0035] Figure 6 It is the perspective view of the gasket included in the fixed assembly of the embodiment of the utility model.

[0036] Figure 7 It is the section view of one example of the application scene of the fixed assembly of the embodiment of the utility model.

[0037] (Symbol explanation)

[0038] 1 Fixed assembly

[0039] 10 Fixed nail

[0040] 11 first bevel gear

[0041] 12 second bevel gear

[0042] 13 fixed nail positioning stopper

[0043] 20 buckle

[0044] 21 first pawl portion

[0045] 211 first pawl

[0046] 22 first split ring portion

[0047] 23 buckle side positioning stopper

[0048] 24 first unlocking piece

[0049] 30 gasket

[0050] 31 second pawl portion

[0051] 311 second pawl

[0052] 32 second split ring portion

[0053] 33 gasket side positioning stopper

[0054] 34 second unlocking piece

[0055] 35 turnup

[0056] a one side in the axial direction of the fixed nail

[0057] b the other side in the axial direction of the fixed nail

[0058] K frame

[0059] C1 first heat-insulating soundproofing material

[0060] C2 second heat-insulating soundproofing material

[0061] P inter-frame skin DETAILED DESCRIPTION

[0062] Hereinafter, the fixed assembly of the embodiment of the present application will be described in detail. Figures 1 to 7 The fixed assembly of the embodiment of the present application will be described in detail.

[0063] (Overall structure of the fixed assembly)

[0064] As Figures 1 to 3 , Figure 6As shown, the fixing assembly 1 includes a fixing pin 10, a buckle 20, and a gasket 30. The fixing pin 10 has a fixing pin positioning stopper 13 protruding toward the radially outer side at the midway in the axial direction of the fixing pin 10, a first bevel gear 11 located on one side a of the fixing pin positioning stopper 13 in the axial direction of the fixing pin 10, and having an axial end surface and an outer peripheral surface tapering toward the one side a from the axial end surface, and a second bevel gear 12 located on the other side b of the fixing pin positioning stopper 13 in the axial direction of the fixing pin 10, and having an axial end surface and an outer peripheral surface tapering toward the other side b from the axial end surface. The buckle 20 is detachably fitted to the fixing pin 10, and has a first pawl portion 21 including a first pawl 211 having an axial end surface and an inner peripheral surface tapering toward the other side b from the axial end surface, and being elastically deformable in the radial direction to engage or disengage the axial end surface of the first pawl 211 and the axial end surface of the first bevel gear 11 with each other. The gasket 30 is detachably fitted to the fixing pin 10, and has a second pawl portion 31 including a second pawl 311 having an axial end surface and an inner peripheral surface tapering toward the one side a from the axial end surface, and being elastically deformable in the radial direction to engage or disengage the axial end surface of the second pawl 311 and the axial end surface of the second bevel gear 12 with each other.

[0065] Structure of fixing pin

[0066] The fixing pin 10 is, for example, an integrally formed member injection-molded of a non-metallic material such as nylon.

[0067] Here, as Figure 2As shown, the fixing nail 10 has a columnar fixing nail body and a fixing nail positioning stopper 13 protruding from the fixing nail body toward the radially outer side. The fixing nail body is formed with first bevel gears 11 and second bevel gears 12. The first bevel gears 11 are arranged in plurality in the axial direction of the fixing nail 10. The second bevel gears 12 are also arranged in plurality in the axial direction of the fixing nail 10. The first bevel gear 11 on the other side b is spaced apart from the second bevel gear 12 on the one side a in the axial direction of the fixing nail 10. Specifically, the fixing nail body is formed with a first groove portion and a second groove portion extending in a straight line in the axial direction, the first groove portion is on the one side a than the fixing nail positioning stopper 13, and the inside of the first groove portion is formed with a plurality of first bevel gears 11, the second groove portion is on the other side b than the fixing nail positioning stopper 13, and the inside of the second groove portion is formed with a plurality of second bevel gears 12. More specifically, the first bevel gears 11 and the second bevel gears 12 are formed at the same position in the circumferential direction of the fixing nail 10. In the portion of the fixing nail 10 corresponding to the first bevel gears 11 and the second bevel gears 12 in the axial direction, the outer peripheral surface of the portion other than the first bevel gears 11 and the second bevel gears 12 is a cylindrical surface. The first bevel gears 11 and the second bevel gears 12 are located inside the circle where the above-mentioned cylindrical surface is located. The cross section of the first bevel gear 11 in the axial direction of the fixing nail 10 is substantially triangular. The outer peripheral surface of the first bevel gear 11 is a plane inclined with respect to the axial direction of the fixing nail 10, and the axial end surface of the first bevel gear 11 on the other side b is a plane perpendicular to the axial direction of the fixing nail 10. The outer peripheral surface of the second bevel gear 12 is a plane inclined with respect to the axial direction of the fixing nail 10, and the axial end surface of the second bevel gear 12 on the one side a is, for example, a plane perpendicular to the axial direction of the fixing nail 10. The both ends of the axial direction of the fixing nail body are formed in a tapered shape.

[0068] Further, as Figure 2 shown, the fixing nail positioning stopper 13 is formed at a position on the one side a than the middle in the axial direction of the fixing nail body. That is, the portion of the fixing nail body on the one side a than the fixing nail positioning stopper 13 is shorter, and the portion of the fixing nail body on the other side b than the fixing nail positioning stopper 13 is longer. When viewed in the axial direction of the fixing nail 10, the fixing nail positioning stopper 13 is in a circular ring shape.

[0069] (Structure of the buckle)

[0070] The buckle 20 is, for example, an integral molded piece molded by injection molding with a non-metallic material such as nylon.

[0071] Here, as Figures 3 to 5As shown, the latch 20 is cylindrical, and a portion of the circumferential direction of the latch 20 is formed by a first pawl portion 21. Alternatively, the latch 20 can be described as having a cylindrical portion and a first pawl portion 21 cut from the cylindrical portion. Specifically, the latch 20 has a first pawl portion 21, a first open ring portion 22, and a latch-side positioning baffle 23. Multiple first pawls 211 are arranged in the axial direction of the fixing pin 10. The cross-section of the first pawl 211 cut along the axial direction of the fixing pin 10 is approximately triangular. The first open ring portion 22, when viewed along the axial direction of the fixing pin 10, is an open ring surrounding the fixing pin 10. The first pawl portion 21 is located at the opening of the first open ring portion 22 and can elastically rotate relative to the first open ring portion 22 about an axis extending intersecting the axial direction of the fixing pin 10 and located on the other side b of the first open ring portion 22. The first pawl portion 21 is generally plate-shaped, with the other side b facing one side a, towards the center line near the fixing pin 10 (see reference). Figure 1 , Figure 5 The dotted line in the middle extends in the direction of the line. The snap-on positioning baffle 23 protrudes radially outward from the end of the other side b of the first opening ring portion 22 and the first pawl portion 21.

[0072] In addition, such as Figures 3 to 5 As shown, the latch 20 also has a first unlocking piece 24. The first unlocking piece 24 is disposed on the first pawl portion 21 and extends from the other side b toward one side a in a direction away from the center line of the fixing pin 10. Preferably, the first unlocking piece 24 is disposed at the end of one side a of the first pawl portion 21.

[0073] (Structure of the gasket)

[0074] Gasket 30 is, for example, a one-piece molded part made of non-metallic material by injection molding.

[0075] Here, as Figure 6As shown, the gasket 30 has a cylindrical center portion and an annular expansion portion expanding from the center portion toward the radial outside, and a part of the circumference of the center portion is constituted by the second pawl portion 31. Specifically, the center portion of the gasket 30 has the second pawl portion 31, the second open ring portion 32, and the gasket-side positioning tab 33. That is, the gasket 30 has the second pawl portion 31, the second open ring portion 32, and the gasket-side positioning tab 33. The second pawl portion 31 is arranged with a plurality of second pawls 311 in the axial direction of the fixing nail 10. The cross section of the second pawl 311 cut along the axial direction of the fixing nail 10 is substantially triangular. The second open ring portion 32 is in the shape of an open ring surrounding the fixing nail 10 when viewed in the axial direction of the fixing nail 10. The second pawl portion 31 is provided at the opening of the second open ring portion 32 and can elastically rotate relative to the second open ring portion 32 about an axis extending transversely to the axial direction of the fixing nail 10 and located on one side a of the second open ring portion 32. The second pawl portion 31 is in the shape of a plate as a whole and extends from one side a toward the other side b toward the direction close to the center line of the fixing nail 10. The gasket-side positioning tab 33 protrudes from the end of one side a of the second open ring portion 32 and the second pawl portion 31 toward the radial outside.

[0076] Further, as shown in FIG. 1, the gasket 30 has a second unlocking tab 34 in the center portion. That is, the gasket 30 has the second unlocking tab 34. The second unlocking tab 34 is provided in the second pawl portion 31 and extends from one side a toward the other side b toward the direction away from the center line of the fixing nail 10. The second unlocking tab 34 is preferably provided at the end of the other side b of the second pawl portion 31. Figure 6

[0077] Further, as shown in FIG. 1, the gasket 30 has a second unlocking tab 34 in the center portion. That is, the gasket 30 has the second unlocking tab 34. The second unlocking tab 34 is provided in the second pawl portion 31 and extends from one side a toward the other side b toward the direction away from the center line of the fixing nail 10. The second unlocking tab 34 is preferably provided at the end of the other side b of the second pawl portion 31. Figure 6

[0078] (Application scenario of the fixing assembly)

[0079] As shown in FIG. 1, after the fixing nail 10 of the fixing assembly 1 is passed through the through hole (nail hole) of the frame K of the airplane, the buckle 20 of the fixing assembly 1 is sleeved on one side a (left side in FIG. 1) of the fixing nail 10 to clamp the frame K together with the fixing nail positioning tab 13, and the other side b (right side in FIG. 1) of the fixing nail 10 is clamped by the gasket 20 and the gasket-side positioning tab 33. Figure 7 Figure 7 Figure 7 ​​​​The fixing assembly 1 is clamped to the frame K by the buckle 20 and the fixing nail positioning flange 13, and the first and second heat and sound insulation materials C1 and C2 are connected and fixed to the frame K.

[0080] (EFFECTS OF THE PRESENT EMBODIMENT)

[0081] According to the fixing assembly 1 of the present embodiment, when the heat and sound insulation material or the like is held to the frame or the like of the airplane, the frame or the like can be clamped by the buckle 20 and the fixing nail positioning flange 13, the fixing assembly 1 is not easily dropped during installation, and when the buckle 20 and the gasket 30 are sleeved in the state that the fixing nail 10 penetrates the through hole of the frame or the like, the inclination directions of the inner circumferential surface of the first pawl 211 and the outer circumferential surface of the first bevel gear 11 are the same, the inclination directions of the inner circumferential surface of the second pawl 311 and the outer circumferential surface of the second bevel gear 12 are the same, the buckle 20 can be smoothly moved along the first bevel gear 11, the gasket 30 can be smoothly moved along the second bevel gear 12, the installation resistance is small, after installation, the axial end surface of the first pawl 211 of the buckle 20 can be engaged with the axial end surface of the first bevel gear 11, the axial end surface of the second pawl 311 of the gasket 30 can be engaged with the axial end surface of the second bevel gear 12, a self-locking effect is formed, the heat and sound insulation material or the like can be stably held to the frame or the like, on the other hand, by elastically deforming the first pawl part 21 of the buckle 20 to release the engagement of the axial end surface of the first pawl 211 with the axial end surface of the first bevel gear 11, and elastically deforming the second pawl part 31 of the gasket 30 to release the engagement of the axial end surface of the second pawl 311 with the axial end surface of the second bevel gear 12, the dismounting resistance is small, and simple and easy, damage during dismounting can be inhibited, and the fixing assembly 1 is protected.

[0082] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned embodiments.

[0083] For example, in the above-mentioned embodiments, the length of the fixing nail 10 can be appropriately set as required, the size and spacing of the first bevel gear 11 and the size and spacing of the second bevel gear 12 can also be appropriately set as required according to the installation accuracy and other requirements.

[0084] In addition, in the above-mentioned embodiments, the number of the first bevel gear 11 and the first pawl 211 can be appropriately set as required, and the number of the second bevel gear 12 and the second pawl 311 can also be appropriately set as required.

[0085] In addition, in the above-mentioned embodiments, the first bevel gear 11 and the second bevel gear 12 are formed at the same position of the circumferential part of the fixing nail 10, but are not limited thereto, and can also be formed at different positions of the circumferential part of the fixing nail 10.

[0086] Further, in the above-described embodiment, in the portion of the fixing nail 10 corresponding to the first tapered tooth 11 and the second tapered tooth 12 in the axial direction, the outer peripheral surface of the portion other than the first tapered tooth 11 and the second tapered tooth 12 is a cylindrical surface, but is not limited thereto, and can be formed as a prismatic surface or the like.

[0087] Further, in the above-described embodiment, the first tapered tooth 11 and the second tapered tooth 12 are located inside a circle in which the cylindrical surface formed by the fixing nail 10 is located, but are not limited thereto, and can at least partially protrude radially outward of the above-described circle.

[0088] Further, in the above-described embodiment, the outer peripheral surface of the first tapered tooth 11 is not limited to a flat surface, and can be a curved surface, and similarly, the outer peripheral surface of the second tapered tooth 12 is not limited to a flat surface, and can be a curved surface.

[0089] Further, in the above-described embodiment, the axial end surface of the first tapered tooth 11 is not limited to being perpendicular to the axial direction of the fixing nail 10, and can be inclined with respect to the axial direction of the fixing nail 10 (preferably, extends toward the side a from the other side b, toward a direction close to the center line of the fixing nail 10), and similarly, the axial end surface of the second tapered tooth 12 is not limited to being perpendicular to the axial direction of the fixing nail 10, and can be inclined with respect to the axial direction of the fixing nail 10 (preferably, extends toward the other side b from the side a, toward a direction close to the center line of the fixing nail 10).

[0090] Further, in the above-described embodiment, the buckle 20 can not have the first unlocking piece 24.

[0091] Further, in the above-described embodiment, the gasket 30 can not have the second unlocking piece 34.

[0092] It should be understood that the present application can freely combine each part of the embodiments, or appropriately deform, omit each part of the embodiments, within the scope of the present application.

Claims

1. A fastening assembly comprising: including: a fixing pin having a fixing pin positioning stopper, a first bevel gear, and a second bevel gear, the fixing pin positioning stopper protruding toward the radial outside at the middle of the axial direction of the fixing pin, the first bevel gear being located on one side of the fixing pin positioning stopper in the axial direction and having an axial end surface and an outer peripheral surface that is reduced in diameter from the axial end surface toward the one side, the second bevel gear being located on the other side of the fixing pin positioning stopper in the axial direction and having an axial end surface and an outer peripheral surface that is reduced in diameter from the axial end surface toward the other side; a clip that is detachably fitted to the fixing pin and has a first pawl portion including a first pawl having an axial end surface and an inner peripheral surface that is increased in diameter from the axial end surface toward the other side, and is elastically deformable in the radial direction to cause the axial end surface of the first pawl and the axial end surface of the first bevel gear to engage with or disengage from each other; and a washer that is detachably fitted to the fixing pin and has a second pawl portion including a second pawl having an axial end surface and an inner peripheral surface that is increased in diameter from the axial end surface toward the one side, and is elastically deformable in the radial direction to cause the axial end surface of the second pawl and the axial end surface of the second bevel gear to engage with or disengage from each other.

2. The fixing assembly according to claim 1, wherein at least the first bevel gear of the first bevel gear and the first pawl is arranged in a plurality in the axial direction, and / or at least the second bevel gear of the second bevel gear and the second pawl is arranged in a plurality in the axial direction.

3. The fixing assembly according to claim 1, wherein the first bevel gear and the second bevel gear are formed at the same position in the circumferential direction of the fixing pin.

4. The fixing assembly according to claim 3, wherein in a portion of the fixing pin corresponding to the first bevel gear and the second bevel gear in the axial direction, an outer peripheral surface of a portion other than the first bevel gear and the second bevel gear is a cylindrical surface.

5. The fixing assembly according to claim 1, wherein the clip is in a tubular shape.

6. The fixing assembly according to claim 1, wherein the clip has a first split ring portion that is in a split ring shape surrounding the fixing pin when viewed in the axial direction of the fixing pin, the first pawl portion is provided at an opening of the first split ring portion, is elastically rotatable with respect to the first split ring portion about an axis extending in a direction intersecting the axial direction of the fixing pin and located on the other side of the first split ring portion, and the clip further has a clip-side positioning stopper protruding toward the radial outside from an end portion of the other side of the first split ring portion and the first pawl portion.

7. The fixing assembly according to claim 6, wherein the first pawl portion is in a plate shape as a whole and extends toward the one side from the other side in a direction close to a center line of the fixing pin, ​ The buckle further has a first unlocking piece provided at the first pawl portion and extending from the other side toward the one side in a direction away from the center line of the fixing pin.

8. The fixing assembly according to claim 1, wherein The gasket has a second open ring portion at the center portion, which is in an open ring shape surrounding the fixing pin when viewed in the axial direction of the fixing pin, The second pawl portion is provided at an opening of the second open ring portion and is elastically rotatable relative to the second open ring portion about an axis extending in cross to the axial direction of the fixing pin and located at the one side of the second open ring portion, The gasket further has a gasket-side positioning stopper piece protruding from an end portion of the one side of the second open ring portion and the second pawl portion toward the radially outer side.

9. The fixing assembly according to claim 8, wherein The second pawl portion is in a plate shape as a whole and extends from the one side toward the other side in a direction close to the center line of the fixing pin, The gasket further has a second unlocking piece provided at the second pawl portion and extending from the one side toward the other side in a direction away from the center line of the fixing pin.

10. The fixing assembly according to claim 8, wherein The gasket further has a turned-up portion turned up from an outer periphery of the gasket toward the other side and extending from the one side toward the other side in a direction away from the center line of the fixing pin.

Images