Riveting type aviation fastener

By introducing an electric telescopic rod-driven quick-installation and replacement mechanism and a buffer mechanism into riveted aerospace fasteners, the problems of difficult quick replacement and unstable connection in the prior art have been solved, realizing the quick installation and replacement of aerospace fasteners and improving maintenance efficiency and stability.

CN223781834UActive Publication Date: 2026-01-09CHENGDU CHENGYA AVIATION TECH CO LTD
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Patent Information

Application Number
CN202520636334.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-01-09
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing riveted aerospace fasteners cannot be quickly replaced in emergency situations and lack flexibility, leading to increased maintenance time and costs, as well as insufficient connection stability and reliability.

Method used

The design includes a connecting shell, rivet connectors, a quick-installation and replacement mechanism, and a buffer mechanism. It utilizes an electric telescopic rod to drive the connecting plate, and achieves quick installation and replacement through an L-shaped fastening rod. The buffer mechanism absorbs impact forces to ensure the stability and reliability of the connection.

Benefits of technology

It enables rapid installation and replacement of aviation fasteners, improves maintenance efficiency, enhances the stability and reliability of connections, reduces fastener damage, and is suitable for complex aviation environments.

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Abstract

The utility model relates to the technical field of aeronautical manufacturing, and discloses a riveting type aeronautical fastener which comprises a connecting shell and a rivet connecting seat, a connecting column is slidably connected to the interior of the top side of the connecting shell, a quick mounting and replacing mechanism is slidably connected to the exterior of the rivet connecting seat, and a buffering mechanism is fixedly connected to the bottom of the connecting shell. And the quick replacement mechanism comprises a plurality of L-shaped fastening rods, the bottom of the rivet connecting base is slidably connected with a pushing connecting disc, and the outer portion of each connecting supporting base is rotatably connected with two rotating short rods. According to the device, the electric telescopic rod is started, the connecting disc is pushed to move up and down, the L-shaped fastening rods are driven to rotate in the supporting connecting rod, the range of the multiple L-shaped fastening rods is adjusted, the rivet connecting base is rapidly installed and replaced, and the maintenance efficiency and operation flexibility of aviation equipment are improved; and meanwhile, the stability and the reliability of the connecting fastener are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of aerospace manufacturing technology, and in particular to a riveted aerospace fastener. Background Technology

[0002] Fasteners are becoming increasingly important in the manufacturing and maintenance of aircraft. Riveted aerospace fasteners are a type of fastening tool widely used in the aerospace field. They are mainly used to connect and fix different parts of an aircraft, using riveting technology to firmly connect two or more parts together.

[0003] A riveted aerospace fastener mainly consists of a connecting shell, a rivet connector, and a threaded rivet head. The connecting shell serves as a basic component, fixing other structural parts and providing support and stability. Next, the rivet connector accurately aligns the rivet with the connecting shell, ensuring proper penetration and fixation. Subsequently, the threaded rivet head engages with the connector via threads, forming a fastening structure.

[0004] In existing technologies, some riveted aerospace fasteners typically require specialized tools for operation, and the procedures are cumbersome, making it difficult to quickly replace fasteners in emergency situations. Furthermore, some riveting methods cannot be replaced and are fixed to the aircraft, increasing maintenance time and costs. Additionally, existing riveting technologies lack flexibility when dealing with different types and specifications of fasteners, reducing the stability and reliability of the fastener connections. To address these issues, a riveted aerospace fastener is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a riveted aerospace fastener, which aims to improve the problem that some existing devices cannot quickly install and replace fasteners during aerospace use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A riveted aerospace fastener includes a connecting housing and a rivet connector. A connecting post is slidably connected to the inside of the top side of the connecting housing. A quick-installation and replacement mechanism is slidably connected to the outside of the rivet connector. A buffer mechanism is fixedly connected to the bottom of the connecting housing. The quick-installation and replacement mechanism includes multiple L-shaped fastening rods. The inner sides of the multiple L-shaped fastening rods are slidably connected to the outside of the rivet connector. A push connecting plate is slidably connected to the bottom of the rivet connector. Multiple connecting support seats are fixedly connected to the top of the push connecting plate. Two rotating short rods are rotatably connected to the outside of each connecting support seat. A power assembly is fixedly connected to the bottom of the push connecting plate.

[0008] As a further description of the above technical solution:

[0009] The power assembly includes an electric telescopic rod, the output end of which is fixedly connected to the bottom of the push connecting plate, the output end of which is slidably connected to a connecting base, and the top of the connecting base is fixedly connected to a plurality of supporting connecting rods, the bottom of which is rotatably connected to the top of the supporting connecting rods.

[0010] As a further description of the above technical solution:

[0011] The top of the output end of the electric telescopic rod is slidably connected to a support connecting plate, and the outside of the support connecting plate is fixedly connected to the inside of the support connecting rod.

[0012] As a further description of the above technical solution:

[0013] The bottom of the push connecting plate is slidably connected to the top of the support connecting plate, and the electric telescopic rod is fixedly connected to a connecting protective shell.

[0014] As a further description of the above technical solution:

[0015] The buffer mechanism includes multiple connecting telescopic springs, the outside of which is fixedly connected to the inside of the push connecting plate, and multiple telescopic columns are fixedly connected to the inside of the connecting housing;

[0016] As a further description of the above technical solution:

[0017] The inner sides of the plurality of connecting telescopic springs are fixedly connected to the outside of the connecting protective shell, the bottom of the connecting protective shell is fixedly connected to the inside of the connecting outer shell, and the bottoms of the plurality of connecting telescopic springs are slidably connected to the top of the connecting outer shell;

[0018] As a further description of the above technical solution:

[0019] A connecting fixing block is fixedly connected to the top of the connecting column, and the bottom of the connecting fixing block is slidably connected to the top of the connecting housing;

[0020] As a further description of the above technical solution:

[0021] A tapping post is fixedly connected inside the rivet connector, and a threaded rivet head is fixedly connected to the bottom of the connecting post;

[0022] As a further description of the above technical solution:

[0023] The external part of the threaded rivet head is rotatably connected to the inside of the tapping post, and the bottom of the tapping post is slidably connected to the inside of the rivet connecting seat;

[0024] As a further description of the above technical solution:

[0025] The rivet connector is slidably connected to the outside of a fastening washer, the top of which is slidably connected to the bottom of the connecting block, and the bottom of which is slidably connected to the top of the rivet connector.

[0026] This utility model has the following beneficial effects:

[0027] 1. In this utility model, the connection plate is moved up and down by an electric telescopic rod, which in turn moves multiple connecting support seats up and down. The external rotating short rod rotates, and at the same time, the L-shaped fastening rod is internally connected to the supporting connecting rod. As the rotating short rod rotates, it drives the L-shaped fastening rod to rotate inside the supporting connecting rod. The range of multiple L-shaped fastening rods can be adjusted at the same time. In aviation applications, this allows for the quick installation and replacement of rivet connecting seats, improving the maintenance efficiency and operational flexibility of aviation equipment, while ensuring the stability and reliability of the connecting fasteners.

[0028] 2. In this utility model, while the internal tapping post rotates, the external tapping post can keep the thread of the threaded rivet head from being worn flat while the threaded rivet head rotates inside. At the same time, when used in aviation, the bottom telescopic post and the electric telescopic rod cooperate with each other to reduce damage to the fasteners during use. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of a riveted aerospace fastener proposed in this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of a riveting fastener rivet connector proposed in this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of an electric telescopic rod for a riveted aerospace fastener proposed in this utility model;

[0032] Figure 4 This is a schematic diagram of the connecting telescopic spring of a riveted aerospace fastener proposed in this utility model.

[0033] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0034] Legend:

[0035] 1. Connecting shell; 2. Connecting column; 3. Rivet connecting seat; 4. Threaded rivet head; 5. Support connecting plate; 6. Support connecting rod; 7. Rotating short rod; 8. L-shaped fastening rod; 9. Fastening washer; 10. Connecting support seat; 11. Push connecting plate; 12. Connecting base; 13. Connecting protective shell; 14. Electric telescopic rod; 15. Telescopic column; 16. Connecting telescopic spring; 17. Tapping column; 18. Connecting fixing block. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a riveted aerospace fastener, including a connecting shell 1 and a rivet connecting seat 3. The connecting shell 1 serves to protect the internal structure and provide an installation foundation. The connecting shell 1 tightly connects the internal connecting post 2, rivet connecting seat 3, and other components together, while also bearing some of the mechanical stress from the outside, ensuring the structural integrity of the entire fastener in complex aerospace environments. The connecting post 2 is slidably connected to the top side of the connecting shell 1. When viewed from the same angle, the connecting post 2 has a waterproof layer and an anti-corrosion layer on its exterior. The connecting post 2, as a key component for transmitting connection force, works in conjunction with the connecting shell 1 through the connecting fixing block 18 on the top. The force from the external components is transmitted to the entire fastener system, while the threaded rivet head 4 at the bottom is responsible for cooperating with the tap post 17 to achieve a tight connection with the rivet connector 3, ensuring that the connection between aerospace components is firm and reliable under different working conditions. The external sliding connection of the rivet connector 3 has a quick installation and replacement mechanism, which includes multiple L-shaped fastening rods 8. The inner sides of the multiple L-shaped fastening rods 8 are slidably connected to the outside of the rivet connector 3 to ensure the firmness of the connection. On the other hand, it works in conjunction with the quick installation and replacement mechanism and the buffer mechanism to achieve quick installation and replacement while ensuring the connection strength, and can effectively cope with external impact forces.

[0038] The bottom of the rivet connecting seat 3 is slidably connected to a push connecting plate 11, and the top of the push connecting plate 11 is fixedly connected to multiple connecting support seats 10. The connecting support seats 10 connect the push connecting plate 11 to the rotating short rod 7, converting the upward and downward movement of the push connecting plate 11 into the rotation of the rotating short rod 7. This, in turn, controls the sliding of the L-shaped fastening rod 8 through the support connecting rod 6, achieving a quick installation and replacement function. Each connecting support seat 10 is externally rotatably connected to two rotating short rods 7. The rotating short rods 7 act as force transmission and direction conversion components, converting the linear movement of the connecting support seat 10 into the swing of the support connecting rod 6, thereby achieving accurate control of the sliding direction and position of the L-shaped fastening rod 8. This is an indispensable intermediate link in the quick installation and replacement mechanism. The bottom of the push connecting plate 11 is fixedly connected to a power assembly, which includes an electric motor. Telescopic rod 14, the output end of electric telescopic rod 14 is fixedly connected to the bottom of push connecting plate 11. Push connecting plate 11 is the core driving component in quick installation and replacement mechanism. Push connecting plate 11 converts the linear thrust output by electric telescopic rod 14 into a coordinated driving force for connecting support base 10, rotating short rod 7, supporting connecting rod 6 and L-shaped fastening rod 8, realizing the motion control of the entire quick installation and replacement mechanism. The output end of push connecting plate 11 is slidably connected to connecting base 12. Connecting base 12 serves as the installation and support component of electric telescopic rod 14. On the one hand, it provides a stable installation foundation for electric telescopic rod 14 to ensure that it will not shift or shake during operation. On the other hand, through the sliding groove on its top, it assists the movement of the output end of electric telescopic rod 14, ensuring that electric telescopic rod 14 can accurately transmit power to push connecting plate 11.

[0039] Multiple supporting connecting rods 6 are fixedly connected to the top of the connecting base 12. The bottoms of multiple L-shaped fastening rods 8 are rotatably connected to the top of the supporting connecting rods 6. The L-shaped fastening rods 8 play a key role in fastening and releasing during quick installation and replacement. During installation, the power component pushes the connecting plate 11 upward, which in turn drives the connecting support 10, the rotating short rod 7, and the supporting connecting rods 6 to move. Ultimately, the L-shaped fastening rods 8 slide inward and tightly grip the rivet connecting seat 3, achieving quick fastening. During replacement, the power component moves in the opposite direction, and the L-shaped fastening rods 8 slide outward, loosening the fastening to the rivet connecting seat 3, facilitating the replacement operation. A buffer mechanism is fixedly connected to the bottom of the connecting housing 1, and a support is slidably connected to the top of the output end of the electric telescopic rod 14. The connecting plate 5 and the electric telescopic rod 14 serve as the power source for the quick installation and replacement mechanism. By accurately controlling their telescopic movements, they provide a stable and reliable linear driving force for pushing the connecting plate 11, thereby enabling the quick tightening and loosening of the L-shaped fastening rod 8. This meets the needs of rapid installation and replacement of aviation fasteners. The external fixed connection of the supporting connecting plate 5 is inside the supporting connecting rod 6. The supporting connecting plate 5 serves to connect the supporting connecting rod 6 and the pushing connecting plate 11, while providing stable support and guidance for the movement of the pushing connecting plate 11, ensuring the stability and accuracy of the quick installation and replacement mechanism during operation. The bottom of the pushing connecting plate 11 is slidably connected to the top of the supporting connecting plate 5. The external fixed connection of the electric telescopic rod 14 is a connecting protective shell 13.

[0040] Reference Figures 1 to 3 The buffer mechanism includes multiple connecting telescopic springs 16. The external of the connecting telescopic springs 16 is fixedly connected to the inside of the push connecting plate 11. Multiple telescopic columns 15 are fixedly connected inside the connecting housing 1. The connecting telescopic springs 16 play a core role in buffering and shock absorption in the buffer mechanism. When the aircraft component is subjected to external impact force, the impact force is transmitted to the push connecting plate 11 through the connecting housing 1. The push connecting plate 11 squeezes the connecting telescopic springs 16, causing the connecting telescopic springs 16 to undergo elastic deformation, absorbing and dispersing the impact force, thereby protecting the internal connecting columns 2, rivet connecting seats 3 and other components from excessive impact damage, improving the service life and reliability of the entire fastener. The telescopic columns 15 play an auxiliary support and guiding role in the buffer mechanism. The telescopic columns 15 provide a stable support structure for the connecting telescopic springs 16, ensuring that the connecting telescopic springs 16 can extend and retract axially when subjected to impact force, avoiding lateral displacement, thereby improving the buffering effect and stability of the buffer mechanism. The inner sides of the multiple connecting telescopic springs 16 are fixedly connected to the outside of the connecting protective housing 13.

[0041] The bottom of the connecting protective shell 13 is fixedly connected to the inside of the connecting outer shell 1. The bottoms of multiple connecting telescopic springs 16 are slidably connected to the top of the connecting outer shell 1. The top of the connecting post 2 is fixedly connected to the connecting fixing block 18, and the bottom of the connecting fixing block 18 is slidably connected to the top of the connecting outer shell 1. The inside of the rivet connecting seat 3 is fixedly connected to the tapping post 17, and the bottom of the connecting post 2 is fixedly connected to the threaded rivet head 4. The outside of the threaded rivet head 4 is rotatably connected to the inside of the tapping post 17. The tapping post 17 achieves a tight connection between the two, ensuring the connection strength and stability of the entire fastener during the working process, thereby ensuring that the surface of the threaded rivet head 4 is not worn flat. The bottom of the tapping post 17 is slidably connected to the inside of the rivet connecting seat 3, and the outside of the rivet connecting seat 3 is slidably connected to the fastening washer 9. The fastening washer 9 plays the role of increasing the connection friction and sealing during the connection process. The top of the fastening washer 9 is slidably connected to the bottom of the connecting fixing block 18, and the bottom of the fastening washer 9 is slidably connected to the top of the rivet connecting seat 3.

[0042] Working principle: First, the electric telescopic rod 14 is activated, pushing the connecting plate 11 to move up and down. This movement of the connecting plate 11 causes multiple connecting support seats 10 to move up and down, thereby causing the external rotating short rod 7 to rotate. The rotation of the rotating short rod 7 is transmitted to the L-shaped fastening rod 8 through the support connecting rod 6, causing the L-shaped fastening rod 8 to rotate inside the support connecting rod 6. Simultaneously, the range of the multiple L-shaped fastening rods 8 is adjusted to achieve quick installation and replacement of the rivet connecting seat 3. During installation, the power unit pushes the connecting plate 11 upwards, carrying... The moving connection support 10, rotating short rod 7, and support connecting rod 6 work together to cause the L-shaped fastening rod 8 to slide inward and tightly grip the rivet connection seat 3, achieving rapid fastening. Simultaneously, the connecting base 12 supports the support connecting rod 6, the connecting protective shell 13 protects the electric telescopic rod 14, and the support connecting plate 5 provides a base for supporting the top pushing connecting plate 11. During replacement, the power component reverses its action, causing the L-shaped fastening rod 8 to slide outward, loosening the fastening to the rivet connection seat 3, facilitating the replacement operation.

[0043] Meanwhile, when the internal tapping post 17 rotates, the external tapping post 17 cooperates with the threaded rivet head 4 to ensure that the threads of the threaded rivet head 4 are not worn flat. The telescopic post 15 at the bottom and the electric telescopic rod 14 cooperate with each other to reduce damage to the fasteners. The connecting telescopic spring 16 in the buffer mechanism undergoes elastic deformation when subjected to external impact force, absorbing and dispersing the impact force, protecting the internal structure from damage, improving the service life and reliability of the fasteners, realizing the quick installation, replacement and fastening of the rivet connecting seat 3, and at the same time having good buffering performance, making it suitable for complex aerospace environments.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A riveted aviation fastener comprising a connecting housing (1), a rivet connecting seat (3), characterized in that: The top side of the connecting shell (1) is internally slidably connected with a connecting column (2), the outside of the rivet connecting seat (3) is slidably connected with a quick installation replacement mechanism, and the bottom of the connecting shell (1) is fixedly connected with a buffer mechanism. The quick installation replacement mechanism comprises a plurality of L-shaped fastening rods (8), the inside of the plurality of L-shaped fastening rods (8) is slidably connected with the outside of the rivet connecting seat (3), the bottom of the rivet connecting seat (3) is slidably connected with a pushing connecting disc (11), the top of the pushing connecting disc (11) is fixedly connected with a plurality of connecting support seats (10), the outside of each connecting support seat (10) is rotatably connected with two rotating short rods (7), and the bottom of the pushing connecting disc (11) is fixedly connected with a power assembly.

2. A clinch-type aviation fastener as defined in claim 1, wherein: The power assembly comprises an electric telescopic rod (14), the output end of the electric telescopic rod (14) is fixedly connected with the bottom of the pushing connecting disc (11), the output end of the pushing connecting disc (11) is slidably connected with a connecting base (12), the top of the connecting base (12) is fixedly connected with a plurality of support connecting rods (6), and the bottom of the plurality of L-shaped fastening rods (8) is rotatably connected with the top of the support connecting rod (6).

3. A clinch-type aviation fastener as defined in claim 2 wherein: The output end top of the electric telescopic rod (14) is slidably connected with a support connecting disc (5), and the outside of the support connecting disc (5) is fixedly connected with the inside of the support connecting rod (6).

4. A clinch-type aviation fastener as defined in claim 3 wherein: The bottom of the pushing connecting disc (11) is slidably connected with the top of the support connecting disc (5), and the outside of the electric telescopic rod (14) is fixedly connected with a connecting protection shell (13).

5. A clinch-type aviation fastener as defined in claim 4 wherein: The buffer mechanism comprises a plurality of connecting telescopic springs (16), the outside of the connecting telescopic spring (16) is fixedly connected with the inside of the pushing connecting disc (11), and the inside of the connecting shell (1) is fixedly connected with a plurality of telescopic columns (15).

6. A clinch-type aviation fastener as defined in claim 5 wherein: The inside of the plurality of connecting telescopic springs (16) is fixedly connected with the outside of the connecting protection shell (13), the bottom of the connecting protection shell (13) is fixedly connected with the inside of the connecting shell (1), and the bottom of the plurality of connecting telescopic springs (16) is slidably connected with the top of the connecting shell (1).

7. A clinch-type aviation fastener as defined in claim 1 wherein: The top of the connecting column (2) is fixedly connected with a connecting fixed block (18), and the bottom of the connecting fixed block (18) is slidably connected with the top of the connecting shell (1).

8. A clinch-type aviation fastener as defined in claim 1 wherein: The inside of the rivet connecting seat (3) is fixedly connected with a tapping column (17), and the bottom of the connecting column (2) is fixedly connected with a threaded rivet head (4).

9. A clinch-type aviation fastener as defined in claim 8 wherein: The outside of the threaded rivet head (4) is rotatably connected with the inside of the tapping column (17), and the bottom of the tapping column (17) is slidably connected with the inside of the rivet connecting seat (3).

10. A clinch-type aviation fastener as defined in claim 7, wherein: The outside of the rivet connecting seat (3) is slidably connected with a fastening gasket (9), the top of the fastening gasket (9) is slidably connected with the bottom of the connecting fixed block (18), and the bottom of the fastening gasket (9) is slidably connected with the top of the rivet connecting seat (3).