Fastener

Abstract

Provided is a fastener which, when fixing a heat and sound insulation layer or the like to a frame or the like of an aircraft, does not easily fall off from the frame or the like after being used for a period of time. The utility model relates to a fastener which is provided with a nail column and a fastener, wherein the nail column is provided with a clamping part; the end portion of one side, in the axial direction, of the nail column extends towards the outer circumferential side, the end face of one side, in the axial direction, of the base is coated with an adhesive, and a through hole penetrating in the axial direction is formed in the base.

Description

Technical Field

[0001] This utility model relates to fasteners. Background Technology

[0002] Previously, there was a type of adhesive fastener, which included a fastener and an adhesive structure. The fastener included a connecting portion and a piercing portion protruding from one end face of the connecting portion. The adhesive structure included an adhesive layer connected to the other end face of the connecting portion and a backing plate covering the adhesive layer on the opposite side of the connecting portion (Patent Document 1).

[0003] Patent Document 1: CN212509128U

[0004] However, when using the aforementioned adhesive fasteners to fix heat insulation and sound insulation layers, foam, felt, etc., to the aircraft frame, the adhesive layer of the adhesive fasteners is prone to detaching from the connection, which can cause the fasteners to fall off the frame, etc. Utility Model Content

[0005] This utility model was made in view of the above-mentioned problems, and its purpose is to provide a fastener that is not easy to fall off the frame or the like after a period of use when fixing the heat insulation and sound insulation layer to the aircraft frame or the like.

[0006] To achieve the above objectives, the present invention provides a fastener comprising: a post having a locking portion for engaging a washer; and a base having an end on one axial side of the post extending outwards, and the end face on the axial side being coated with an adhesive, wherein a through hole extending axially is provided on the base.

[0007] According to the fastener of this utility model, a through hole is provided on the base along the axial direction. Therefore, when the end face (bottom surface) of the base on one side of the axial direction is pressed against the frame of an aircraft or the like through the adhesive before it solidifies, the adhesive will overflow through the through hole on the base to the end face (upper surface) on the other side of the axial direction. Thus, the solidified adhesive will block the through hole on the base and form a rivet-like structure, making the fastener less likely to fall off the frame or the like after a period of use.

[0008] Furthermore, in the fasteners of this invention, it is preferable that multiple through holes are provided across the center line of the nail post.

[0009] According to the present invention, the fastener, by means of adhesive that overflows from and solidifies from multiple through holes, can more reliably prevent the fastener from falling off the frame or the like after a period of use.

[0010] Furthermore, in the fastener of this utility model, it is preferable to provide an inclined surface on the outer periphery of the base, and the closer the inclined surface is to the other side in the axial direction, the closer it is to the center line of the nail post.

[0011] According to the fastener of this utility model, when the end face (bottom surface) of one side of the base in the axial direction is pressed against the frame of an aircraft or the like through the adhesive before it solidifies, the adhesive can easily spread across the periphery of the base to the inclined surface. After the adhesive solidifies, it can form a buckle-like structure at the periphery of the base, thus further enhancing the stability and durability of the bond.

[0012] Furthermore, in the fasteners of this invention, it is preferable that the inclined surface is formed on the entire periphery of the base.

[0013] According to the fastener of this utility model, when the end face (bottom surface) of one side of the base in the axial direction is pressed against the frame of an aircraft or the like through the adhesive before it solidifies, the adhesive can easily spread across the entire periphery of the base to the inclined surface. After the adhesive solidifies, it can form a snap-like structure around the entire periphery of the base, thus further enhancing the stability and durability of the bond.

[0014] Furthermore, in the fastener of this invention, a groove is preferably formed on one end face of the base in the axial direction.

[0015] The fastener according to this utility model can increase the contact area between the adhesive and the base, and further improve the adhesion of the adhesive to the fastener.

[0016] Furthermore, in the fasteners of this invention, it is preferable that the grooves are arranged in multiple ways.

[0017] Furthermore, in the fasteners of this invention, it is preferable that the groove extends across the entire base in a direction perpendicular to the axial direction.

[0018] According to the fastener of this utility model, the contact area between the adhesive and the base can be further increased, thereby further improving the adhesion of the adhesive to the fastener.

[0019] Furthermore, in the fastener of this invention, preferably, a plurality of protrusions are formed on one end face of the base on one side in the axial direction, separated from the center line of the nail post.

[0020] According to the fastener of this utility model, when the end face (bottom face) of the axial side of the base is pressed against the frame of an aircraft or the like through the adhesive before it solidifies, the protrusion can be used to control the distance between the end face of the axial side of the base and the frame or the like, thereby controlling the thickness of the adhesive, ensuring consistent amount of adhesive used, and reducing human error.

[0021] Furthermore, in the fasteners of this invention, the protrusion is preferably spherical.

[0022] According to the present invention, when the end face (bottom face) of the base on one side of the axial direction is pressed against the frame of an aircraft or the like through the adhesive before it solidifies, damage to the frame or the like due to protrusion can be prevented.

[0023] Furthermore, the fastener of this invention preferably also includes a washer that engages with the locking portion.

[0024] (Utility Model Effect)

[0025] According to the fastener of this invention, a through hole is provided on the base, extending axially. Therefore, when the axial end face (bottom surface) of the base is pressed against the aircraft frame or the like with the adhesive in place before it solidifies, the adhesive overflows through the through hole to the axial end face (top surface) on the other side. Thus, the solidified adhesive blocks the through hole on the base, forming a rivet-like structure, making the fastener less likely to detach from the frame or the like after a period of use. Furthermore, according to the fastener of this invention, when the axial end face (bottom surface) of the base is pressed against the aircraft frame or the like with the adhesive in place before it solidifies, the bonding quality can be judged by visual inspection. Attached Figure Description

[0026] Figure 1 This is a perspective view schematically illustrating a fastener according to an embodiment of the present invention.

[0027] Figure 2 This is a bottom view schematically illustrating a fastener according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic side sectional view of a fastener according to an embodiment of the present invention, wherein the gasket is omitted.

[0029] Figure 4 This is a side sectional view illustrating an example of the application scenario of the fastener according to an embodiment of the present invention.

[0030] Figure 5 This is a side sectional view schematically illustrating the fastening method of the fastener according to an embodiment of the present invention.

[0031] Figure 6 This is a perspective view illustrating the fastening method of the fastener according to an embodiment of the present invention, wherein the illustration of the gasket is omitted.

[0032] (Symbol Explanation)

[0033] 1 Fasteners

[0034] 10 nail posts

[0035] 11. Calibration Section

[0036] 20 bases

[0037] 21 Through Hole

[0038] 22 Inclined surface

[0039] 23 Grooves

[0040] 24. Protrusion

[0041] 30 gaskets

[0042] AD adhesive

[0043] K-framework

[0044] C1 Enclosure Thermal Insulation and Sound Insulation Layer

[0045] C2 Inter-frame thermal insulation and sound insulation layer Detailed Implementation

[0046] Below, in conjunction with Figures 1 to 6 The fasteners according to the embodiments of this utility model will be described.

[0047] For ease of explanation, the direction of the center line of the nail post is defined as the axial direction, the direction around the center line of the nail post is defined as the circumferential direction, and one side along the axial direction is defined as L1, and the other side along the axial direction is defined as L2.

[0048] (Overall structure of the fastener)

[0049] like Figure 1 and Figure 3 As shown, the fastener 1 has: a post 10, which has a locking part 11 for engaging the washer 30; and a base 20, which extends outward from the end of one side L1 of the post 10 in the axial direction, and the end face (bottom surface) of the side L1 in the axial direction is coated with adhesive, and a through hole 21 extending in the axial direction is provided on the base 20.

[0050] Here, as Figure 1 As shown, the fastener 1 also has a washer 30, which engages with the locking portion 11 of the nail post 10.

[0051] (The structure of a nail-shaped column)

[0052] As described above, the nail post 10 has a locking part 11.

[0053] Here, as Figure 1 and Figure 3 As shown, the pin 10 has a plurality of locking parts 11 arranged along the axial direction. As a result, the gasket 30 can be easily locked in the appropriate position.

[0054] In addition, such as Figure 1 and Figure 3As shown, the locking part 11 has an arc-shaped boss that facilitates the subsequent removal of the gasket 30, and the outer diameter of one side L1 in the axial direction is larger than the outer diameter of the other side L2 in the axial direction.

[0055] In addition, the nail post 10 can be made of nylon or metal to meet the fireproof requirements of the heat insulation and sound insulation layer.

[0056] (Structure of the base)

[0057] As described above, the end of the base 20 on one side L1 of the nail post 10 extends outward to the peripheral side.

[0058] Here, as Figure 1 and Figure 2 As shown, the base 20 is roughly rectangular, with the center of the rectangle located on the center line of the nail post 10.

[0059] In addition, such as Figure 1 and Figure 2 As shown, on the base 20, there are multiple through holes 21 separated from the center line of the nail post 10 (two in the illustrated example, but not limited to this, there can also be three or more).

[0060] In addition, such as Figure 1 As shown, an inclined surface 22 is provided on the outer periphery of the base 20 (on the two opposite long sides of the base 20 in the illustrated example). The closer the inclined surface 22 is to the other side L2 in the axial direction, the closer it is to the center line of the nail post 10.

[0061] In addition, such as Figure 2 and Figure 3 As shown, a groove 23 is formed on the end face of one side L1 of the base 20 along the axial direction. Multiple grooves 23 are arranged in a direction intersecting its extending direction. The grooves 23 extend across the entire base 20 in a direction perpendicular to the axial direction. The grooves 23 extend straight in a direction perpendicular to the axial direction.

[0062] In addition, such as Figure 2 and Figure 3 As shown, on the end face of one side L1 of the base 20 along the axial direction, a plurality of protrusions 24 are formed across the center line of the nail post 10. The protrusions 24 are approximately spherical.

[0063] In addition, the base 20 can be made of the same material as the nail post 10, and preferably the material of the protrusion 24 is also the same as the material of the main body of the base 20.

[0064] (Structure of the gasket)

[0065] As described above, the gasket 30 can engage with the locking part 11 of the nail post 10.

[0066] Here, the washer 30 is, for example, detachable from the nail post 10, and a central hole is formed in the center of the washer 30 for the nail post 10 to pass through.

[0067] In addition, such as Figure 1 As shown, the gasket 30 has a flange on its outer periphery, which is inclined in such a way that the side L2 on the axial direction is further away from the center line of the nail post 10.

[0068] (An example of a fastener application scenario)

[0069] like Figure 4 , Figure 5 and Figure 6 As shown, after the base 20 of the fastener 1 is bonded to the frame K with adhesive AD, the nail 10 of the fastener 1 is passed through the frame insulation and sound insulation layer C1 and the inter-frame insulation and sound insulation layer C2, and the frame insulation and sound insulation layer C1 and the inter-frame insulation and sound insulation layer C2 are clamped from both sides in the axial direction by the gasket 30 and the base 20, thereby fixing the frame insulation and sound insulation layer C1 and the inter-frame insulation and sound insulation layer C2 to the frame K.

[0070] (Main effects of this implementation method)

[0071] According to the fastener 1 of this embodiment, a through hole 21 extending axially is provided on the base 20, therefore, as Figure 5 and Figure 6 As shown, when the end face (bottom surface) of the axial side L1 of the base 20 is pressed against the frame K of the aircraft through the adhesive AD before solidification, the adhesive AD will overflow through the through hole 21 on the base 20 to the end face (upper surface) of the other axial side L2. Thus, the solidified adhesive AD will block the through hole 21 on the base 20 to form a rivet-like structure, making it difficult for the fastener 1 to fall off the frame K after a period of use.

[0072] Furthermore, according to the fastener 1 of this embodiment, an inclined surface 22 is provided on the outer periphery of the base 20. The closer the inclined surface 22 is to the other side L2 in the axial direction, the closer it is to the center line of the nail post 10. Therefore, if... Figure 5 and Figure 6 As shown, when the end face of the axial side L1 of the base 20 is pressed against the frame K of the aircraft with the adhesive AD in place, the adhesive AD can easily spread beyond the periphery of the base 20 to the inclined surface 22 (preferably covering more than two-thirds of the area of ​​the inclined surface 22). After the adhesive AD solidifies, it can form a snap-like structure at the periphery of the base 20, thus further enhancing the stability and durability of the bond.

[0073] Furthermore, according to the fastener 1 of this embodiment, a groove 23 is formed on the end face of one side L1 of the base 20 in the axial direction, therefore, as Figure 5 and Figure 6 As shown, when the end face of the axial side L1 of the base 20 is pressed against the frame K of the aircraft through the adhesive AD before solidification, the contact area between the adhesive AD and the base 20 can be increased by filling the groove 23 with the adhesive AD, thereby further improving the adhesion of the adhesive to the fastener 1.

[0074] Furthermore, according to the fastener 1 of this embodiment, a plurality of protrusions 24 are formed on the end face of one side L1 of the base 20 in the axial direction, spaced apart from the center line of the nail post 10. Therefore, as Figure 5 and Figure 6 As shown, when the end face of the axial side L1 of the base 20 is pressed against the frame K of the aircraft through the adhesive AD before solidification, the protrusion 24 can be used to control the distance between the end face of the axial side L1 of the base 20 and the frame K, thereby controlling the thickness of the adhesive AD. By ensuring that the thickness of the applied adhesive is not less than the protrusion of the protrusion 24, it is possible to ensure that the amount of adhesive AD used is consistent, reduce human error, and also ensure that there is no gap between the solidified adhesive AD and the end face of the axial side L1 of the base 20.

[0075] Furthermore, according to the fastener 1 of this embodiment, when the end face of the axial side L1 of the base 20 is pressed against the frame K of the aircraft through the adhesive AD before solidification, the bonding quality can be judged by visual inspection.

[0076] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above embodiments.

[0077] For example, in the above embodiments, the nail post 10 and the base 20 can be formed as one piece, or they can be formed separately and then assembled together.

[0078] Furthermore, in the above embodiments, the number of locking parts 11 of the nail post 10 can be set appropriately as needed, and the shape is not limited to an arc-shaped boss.

[0079] Furthermore, in the above embodiment, the base 20 is generally rectangular, but it is not limited to this; the base 20 may also be formed into other shapes such as circles.

[0080] Furthermore, in the above embodiment, inclined surfaces 22 are formed on the two opposite long sides of the base 20, but it is not limited to this; the inclined surfaces 22 may also be formed on the entire periphery of the base 20.

[0081] Furthermore, in the above embodiments, the number of grooves 23 can be set appropriately as needed, the grooves 23 can also be formed as curved extensions, or the grooves 23 can not extend across the entire base 20, but are only formed on a part of the base 20.

[0082] Furthermore, in the above embodiment, the protrusion 24 is generally spherical, but is not limited to this, and may also be formed into other shapes such as cylindrical.

[0083] It should be understood that within the scope of this utility model, the various parts in the embodiments can be freely combined, or the various parts in the embodiments can be appropriately modified or omitted.

Claims

1. A fastener comprising: a post having a locking portion for engaging a washer; and a base extending outwardly from one end of the post on an axially inclined side, the end face of which is coated with an adhesive, characterized in that, The base has a through hole extending along the axial direction.

2. The fastener as claimed in claim 1, characterized in that, Multiple through holes are provided, spaced apart from the centerline of the nail post.

3. The fastener as described in claim 1, characterized in that, An inclined surface is provided on the outer periphery of the base. The closer the inclined surface is to the other side in the axial direction, the closer it is to the center line of the nail post.

4. The fastener as described in claim 3, characterized in that, The inclined surface is formed along the entire periphery of the base.

5. The fastener as claimed in claim 1, characterized in that, A groove is formed on one end face of the base along its axial direction.

6. The fastener as described in claim 5, characterized in that, The grooves are arranged in multiple ways.

7. The fastener as described in claim 5, characterized in that, The groove extends across the entire base in a direction perpendicular to the axial direction.

8. The fastener as claimed in claim 1, characterized in that, On one end face of the base along the axial direction, a plurality of protrusions are formed across the center line of the nail post.

9. The fastener as claimed in claim 8, characterized in that, The protrusion is spherical.

10. The fastener as claimed in claim 1, characterized in that, It also has a gasket that engages with the locking part.

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