Quick mounting mechanism for aero seat ground rail

Abstract

The utility model discloses a quick mounting mechanism for an aero seat ground rail, which relates to the related field of aero seat ground rails, and comprises a bottom plate, and a nut is welded at the lower end of the bottom plate; the fixing sleeve is welded to the upper end of the bottom plate; the clamping blocks are movably arranged at the side opening of the fixing sleeve; the pressing shaft is in sliding fit with the guide hole of the fixing sleeve, and the outer conical surface of the pressing shaft is in contact with the side conical surface of the clamping block; the ground rail is arranged on the periphery of the main body of the fixing sleeve in a sleeving manner; the bolt penetrates through the pressing shaft, the fixing sleeve and the bottom plate and is in threaded connection with the nut; the bolt is screwed down, the bolt drives the pressing shaft to move downwards in the axial direction, the outer conical face pushes the side conical face to enable the clamping block to move outwards in the radial direction, the ground rail is clamped, and therefore the ground rail and the fixing sleeve are connected. The installation process is simple and fast, the installation time is greatly shortened, and the installation efficiency of the aero seat ground rail is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of aircraft seat ground rails, specifically to a quick installation mechanism for aircraft seat ground rails. Background Technology

[0002] In the aviation industry, the stability and ease of installation of aircraft seats are paramount, with the installation of the seat floor rails being a key component. The aircraft seat floor rails need to be reliably connected to the seat mounting structure to ensure seat stability during flight and guarantee passenger safety.

[0003] Traditional aircraft seat ground rail installation methods often have some shortcomings. On the one hand, some installation methods are complex to operate, requiring the use of multiple tools and going through multiple cumbersome steps to complete the installation of the ground rail. This not only increases installation time and labor costs, but also makes it difficult for this inefficient installation method to meet the needs of large-scale production and rapid delivery in the high-efficiency production environment of aircraft assembly.

[0004] On the other hand, traditional installation mechanisms may have limitations in ensuring connection stability. Aircraft are subjected to various complex forces and vibrations during flight. If the connection between the ground rail and the installation structure is not secure enough, it may cause the seat to loosen, affecting passenger comfort and even posing a potential threat to flight safety.

[0005] In addition, some existing installation mechanisms may experience a decline in connection performance after long-term use due to wear and loosening of parts, requiring frequent maintenance and replacement, which increases the airline's operating costs and maintenance difficulty.

[0006] Therefore, developing an installation mechanism that enables rapid installation of aircraft seat rails while ensuring a stable and reliable connection, simple structure, and easy maintenance is of significant practical importance. This invention addresses this need by proposing a rapid installation mechanism for aircraft seat rails, aiming to solve the problems existing in the prior art. Utility Model Content

[0007] This utility model provides a quick installation mechanism for aircraft seat ground rails to solve the problems of low installation efficiency, complicated operation, and difficulty in ensuring the stability and rapid and accurate positioning of the ground rails in the traditional installation process of aircraft seat ground rails.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A quick-installation mechanism for aircraft seat ground rails, comprising:

[0010] A base plate, the lower end of which is welded with a nut;

[0011] A fixing sleeve, which is welded to the upper end of the base plate;

[0012] Several clamping blocks are movably disposed at the side opening of the fixed sleeve;

[0013] The pressure shaft is slidably fitted with the guide hole of the fixed sleeve, and the outer conical surface of the pressure shaft is in contact with the side conical surface of the clamping block;

[0014] A ground rail, which is fitted onto the outer periphery of the main body of the fixed sleeve;

[0015] A bolt, which passes through the pressure shaft, the fixing sleeve, and the base plate and is threadedly connected to the nut;

[0016] Tightening the bolt causes the pressure shaft to move downward along the axial direction, and the outer conical surface pushes the side conical surface to move the clamping block outward along the radial direction, clamping the ground rail to achieve the connection between the ground rail and the fixed sleeve.

[0017] In one embodiment, a guide groove is provided on the bottom wall of the side opening, and a protrusion provided on the bottom surface of the clamping block slides in cooperation with the guide groove.

[0018] In one embodiment, a return spring is provided between the guide groove and the protrusion.

[0019] In one embodiment, a limiting ring is installed on the inner step of the fixing sleeve to prevent the clamping block from disengaging inward from the side opening.

[0020] In one embodiment, the sliding shaft of the pressure shaft is slidably engaged with the guide hole.

[0021] In one embodiment, a spring washer is fitted onto the bolt, and the spring washer abuts against the sliding shaft.

[0022] In one embodiment, the guide groove is in communication with the inner step.

[0023] In one embodiment, the angle H between the outer conical surface and the axis is 5° to 15°.

[0024] Compared with the prior art, the advantages of this utility model are:

[0025] 1. Significantly improved installation efficiency

[0026] The structural design of this utility model enables rapid installation of aircraft seat ground rails. Compared to traditional installation methods, it eliminates the tedious steps of tightening multiple bolts one by one or complex positioning and calibration. During installation, the ground rail is simply placed on the fixing sleeve, and the bolts are tightened to drive the pressure shaft downward, which in turn causes the clamping block to move radially outward to quickly clamp the ground rail. The entire installation process is simple and quick, greatly shortening the installation time and effectively improving the installation efficiency of aircraft seat ground rails. It can meet the requirements of high-efficiency operation in aircraft manufacturing and maintenance, reduce aircraft downtime, and lower operating costs.

[0027] 2. Simple and easy to operate

[0028] The installation mechanism of this utility model has a simple structure, and the connections and operational relationships between its components are clear and straightforward. Operators can complete the installation of the floor rail simply by following simple steps. For example, simply place the floor rail in the appropriate position and tighten the bolts to quickly fix it in place. This convenient operation lowers the installation threshold, improves operational feasibility, reduces installation errors caused by improper operation, and also facilitates rapid training of operators, thereby improving overall work efficiency.

[0029] 3. Installation is stable and reliable.

[0030] Uniform and stable clamping force: By cooperating with the outer conical surface of the pressure shaft and the side conical surface of the clamping block, the axial force of the bolt can be uniformly converted into the radial clamping force of the clamping block. This ensures a uniform distribution of the clamping force on the ground rail, avoiding deformation or loosening of the ground rail caused by localized stress concentration. Simultaneously, the spring washers provide excellent anti-loosening protection, effectively preventing the bolts from loosening due to vibration and other factors during long-term use, ensuring stable clamping force, and thus guaranteeing the stability of the ground rail installation.

[0031] 4. Precise Positioning: The flange of the fixed sleeve provides reliable support and positioning reference for the ground rail. The bottom surface of the ground rail presses against the flange, enabling rapid initial positioning of the ground rail on the base plate. Under the action of the pressure shaft, the clamping block moves radially to clamp the ground rail, further ensuring the accuracy of the ground rail installation position and making the relative positional relationship between the ground rail and the base plate stable and reliable.

[0032] 5. Easy maintenance and replacement: When a component is damaged or needs replacement, the mounting mechanism of this invention is easy to disassemble and repair. Simply loosen the bolts, the clamping block automatically resets under the action of the return spring, the ground rail can be easily removed, and then the damaged component can be replaced. This ease of maintenance and replacement reduces repair time and costs. Attached Figure Description

[0033] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0034] Figure 1 This is a cross-sectional view of the overall structure of this utility model.

[0035] Figure 2 for Figure 1 A magnified view of the local structure.

[0036] Figure 3 for Figure 1 Another enlarged view of a local structure.

[0037] Figure 4 For the present utility model Figure 2 A magnified view of a portion of point C.

[0038] Figure 5 for Figure 3 A magnified view of the local structure.

[0039] Figure labeling: 1-Base plate; 11-Through hole;

[0040] 2-Nuts;

[0041] 3-Fixing sleeve; 31-Guide groove; 32-Reset spring; 33-Side opening; 34-Inner step; 35-Guide hole; 36-Third through hole; 37-Body; 38-Flange;

[0042] 4-Ground rail; 41-First through hole;

[0043] 5-Clamping block; 51-Side conical surface; 52-Protrusion;

[0044] 6-Pressure shaft; 61-Sliding shaft; 62-Drive shaft; 63-Outer conical surface; 64-Second through hole;

[0045] 7-Spring washer;

[0046] 8- Bolts;

[0047] 9-Limiting ring. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0049] refer to Figures 1 to 5 ,like Figure 1As shown, this embodiment provides a quick installation mechanism for aircraft seat ground rails to solve the problems of low installation efficiency, complex operation, and difficulty in ensuring the stability and rapid and accurate positioning of the ground rails in the traditional installation process of aircraft seat ground rails.

[0050] 1. Overall structural composition

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, the quick installation mechanism for aircraft seat floor rails of this utility model mainly consists of a base plate 1, a nut 2, a fixing sleeve 3, a floor rail 4, several clamping blocks 5, a pressure shaft 6, a spring washer 7, a bolt 8, and a limiting ring 9.

[0052] 2. Detailed structure and connection relationships of each component

[0053] like Figure 1 and Figure 3 As shown, the base plate 1 is the basic support component of the entire mounting mechanism, and a through hole 11 is provided on it for the bolt 8 to pass through. A nut 2 is welded to the lower end of the base plate 1, and the nut 2 is threadedly connected to the bolt 8, providing a basis for the subsequent linkage of various components by tightening the bolt 8.

[0054] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the fixing sleeve 3 is welded to the upper end face of the base plate 1. The lower end of the fixing sleeve 3 has a flange 38, which is welded to the upper end of the through hole 11 of the base plate 1 to ensure a stable connection between the fixing sleeve 3 and the base plate 1.

[0055] The outer periphery of the main body 37 of the fixed sleeve 3 is used to mount the ground rail 4. The flange 38 at the lower end of the main body 37 serves to support the ground rail 4, so that the bottom surface of the ground rail 4 can press against the flange 38 to achieve initial positioning.

[0056] The side wall of the fixed sleeve 3 has several side openings 33, and the bottom wall of the side openings 33 has a guide groove 31, which communicates with the inner step 34 of the fixed sleeve 3. The side openings 33 are used to accommodate the clamping block 5 and allow the clamping block 5 to move radially.

[0057] The clamping block 5 is movably mounted at the side opening 33 of the fixed sleeve 3. A protrusion 52 is provided on its bottom surface, and the protrusion 52 slides into a guide groove 31 on the bottom wall of the side opening 33, allowing the clamping block 5 to move radially under the guidance of the guide groove 31. A return spring 32 is provided between the guide groove 31 and the protrusion 52. When the bolt 8 is loosened, the return spring 32 pushes the clamping block 5 to return to its original position. The outer wall of the clamping block 5 has a shape that matches the first through hole 41 of the ground rail 4. When the clamping block 5 moves radially outward, its outer wall abuts against the first through hole 41, thereby quickly installing the ground rail 4 onto the base plate 1.

[0058] The fixing sleeve 3 is welded to the upper end of the base plate 1, and its lower end has a flange 38. The flange 38 is welded to the upper end of the through hole 11 of the base plate 1, which serves to connect and fix the parts. The outer periphery of the main body 37 of the fixing sleeve 3 is used to fit the ground rail 4. It has a guide hole 35 inside, and the sliding shaft 61 of the pressure shaft 6 slides with the guide hole 35 to ensure the axial movement accuracy of the pressure shaft 6.

[0059] The side opening 33 of the fixed sleeve 3 is used to movably mount the clamping block 5. A guide groove 31 is provided on the bottom wall of the side opening 33. The protrusion 52 on the bottom surface of the clamping block 5 slides in engagement with the guide groove 31 to guide the radial movement of the clamping block 5. A return spring 32 is provided between the guide groove 31 and the protrusion 52. After the bolt 8 is loosened, the return spring 32 can automatically reset the clamping block 5. A limit ring 9 is installed on the inner step 34 of the fixed sleeve 3 to prevent the clamping block 5 from disengaging inward from the side opening 33.

[0060] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the sliding shaft 61 of the pressure shaft 6 slides into the guide hole 35 of the fixed sleeve 3 to ensure stable movement of the pressure shaft 6. The outer conical surface 63 at the lower end of the pressure shaft 6 contacts the side conical surface 51 of the clamping block 5, and the radial movement of the clamping block 5 is achieved through the conical surface engagement. The angle H between the outer conical surface 63 and the axis is designed to be 5° to 15° to balance the clamping force and ease of operation. The lower end of the sliding shaft 61 is connected to the drive shaft 62, and the lower end of the drive shaft 62 forms the outer conical surface 63 to realize the transmission of force.

[0061] Spring washer 7 is fitted onto bolt 8 and abuts against sliding shaft 61 of pressure shaft 6, which plays a role in preventing loosening and ensuring the reliability of connection after bolt 8 is tightened.

[0062] Bolt 8 passes through spring washer 7, second through hole 64 of pressure shaft 6, limit ring 9 and third through hole 36 of fixed sleeve 3, and through hole 11 of base plate 1 in sequence, and is threadedly connected to nut 2 welded to the lower end of base plate 1. By tightening bolt 8, pressure shaft 6 is driven to move down, so that clamping block 5 clamps ground rail 4.

[0063] The limiting ring 9 is installed on the inner step 34 of the fixed sleeve 3 to prevent the clamping block 5 from disengaging from the side opening 33, thus ensuring the stability and reliability of the installation mechanism.

[0064] Ground rail installation process:

[0065] First, the first through hole 41 of the ground rail 4 is fitted onto the outer periphery of the main body 37 of the fixing sleeve 3, so that the bottom surface of the ground rail 4 presses against the flange 38 at the lower end of the main body 37.

[0066] The external hexagonal head of the screw 8 is tightened, and the external hexagonal head presses down on the spring washer 7 and the pressure shaft 6. The sliding shaft 61 of the pressure shaft 6 moves downward along the guide hole 35 of the main body 37. The outer conical surface 63 at the lower end of the pressure shaft 6 presses the side conical surface 51 of the clamping block 5, causing the clamping block 5 to move radially outward. The outer wall of the clamping block 5 abuts against the first through hole 41, thereby quickly installing the ground rail 4 on the base plate 1.

[0067] Assembly process of the mounting mechanism:

[0068] Welding components: Weld nut 2 to the lower end of through hole 11 of base plate 1, and weld flange 38 at the lower end of fixing sleeve 3 to the upper end of through hole 11 to ensure the stability of the installation mechanism.

[0069] Install the reset spring: Place the reset spring 32 in the guide groove 31 to ensure the reset of the clamping block 5.

[0070] Install the clamping block: Insert the clamping block 5 into the fixing sleeve 3 through the guide hole 35, so that the outer end of the clamping block 5 slides with the side opening 33, the protrusion 52 slides with the guide groove 31, and the protrusion 52 presses against the return spring 32 to ensure that the clamping block 5 can be flexibly reset.

[0071] Install the limiting ring 9: Fix the limiting ring 9 on the inner step 34 to prevent the clamping block 5 from falling off.

[0072] Install the pressure shaft 6 and spring washer 7: Place the pressure shaft 6 in, with the outer conical surface 63 in close contact with the side conical surface 51, and place the spring washer 7 on the upper end of the pressure shaft 6 to enhance the stability of the bolt 8 connection.

[0073] Connecting bolt 8: Pass the bolt 8 through the spring washer 7, the second through hole 64, the limit ring 9, the third through hole 36, and the through hole 11 from top to bottom, and connect it tightly with the nut 2 to form a stable installation structure.

[0074] In this embodiment, the ground rail 4 achieves a stable connection with the fixed sleeve 3 through the radial movement of the clamping block 5, ensuring reliable pressure between the bottom surface of the ground rail 4 and the flange 38.

[0075] In this embodiment, the spring washer 7 is located at the upper end of the sliding shaft 61. Driven by the bolt 8, the outer conical surface 63 and the side conical surface 51 are in close contact, which reflects the anti-loosening design such as the anti-loosening function of the spring washer 7.

[0076] In this embodiment, limiting and safety are addressed as follows:

[0077] The limiting ring 9 prevents the clamping block 5 from disengaging from the side opening 33, ensuring the stability of the installation mechanism under vibration.

[0078] In this embodiment, maintenance and optimization are performed as follows:

[0079] Regular inspection: Regularly inspect the elasticity of the return spring 32 and the wear of the clamping block 5 to ensure the reliability of the installation mechanism.

[0080] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of the present utility model. 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 quick-installation mechanism for aircraft seat ground rails, characterized in that, include: The bottom plate (1) is welded with a nut (2) at its lower end. A fixing sleeve (3) is welded to the upper end of the base plate (1); Several clamping blocks (5) are movably disposed at the side opening (33) of the fixed sleeve (3); The pressure shaft (6) is slidably fitted with the guide hole (35) of the fixed sleeve (3), and the outer conical surface (63) of the pressure shaft (6) is in contact with the side conical surface (51) of the clamping block (5). Ground rail (4), which is fitted on the outer periphery of the main body (37) of the fixed sleeve (3); Bolt (8), which passes through the pressure shaft (6), the fixing sleeve (3) and the base plate (1) and is threaded to the nut (2); Tightening the bolt (8) causes the pressure shaft (6) to move downward along the axial direction, and the outer conical surface (63) pushes the side conical surface (51) to move the clamping block (5) outward along the radial direction, clamping the ground rail (4) to achieve the connection between the ground rail (4) and the fixing sleeve (3).

2. The quick-installation mechanism for aircraft seat ground rails according to claim 1, characterized in that, A guide groove (31) is provided on the bottom wall of the side opening (33), and the protrusion (52) provided on the bottom surface of the clamping block (5) slides in cooperation with the guide groove (31).

3. The quick-installation mechanism for aircraft seat ground rails according to claim 2, characterized in that, A return spring (32) is provided between the guide groove (31) and the protrusion (52).

4. The quick-installation mechanism for aircraft seat ground rails according to claim 3, characterized in that, A limiting ring (9) is installed on the inner step (34) of the fixed sleeve (3), and the limiting ring (9) is used to prevent the clamping block (5) from disengaging from the side opening (33).

5. The quick-installation mechanism for aircraft seat ground rails according to claim 1, characterized in that, The sliding shaft (61) of the pressure shaft (6) is in sliding engagement with the guide hole (35).

6. The quick-installation mechanism for aircraft seat ground rails according to claim 5, characterized in that, A spring washer (7) is fitted on the bolt (8), and the spring washer (7) abuts against the sliding shaft (61).

7. The quick-installation mechanism for aircraft seat ground rails according to claim 4, characterized in that, The guide groove (31) is connected to the inner step (34).

8. The quick-installation mechanism for aircraft seat ground rails according to claim 7, characterized in that, The angle H between the outer conical surface (63) and the axis is 5° to 15°.

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