Airplane pull rod regulator

By designing the aircraft pull rod regulator, the problem of inaccurate pull rod adjustment during aircraft maintenance is solved, and the precise adjustment of pull rod length and angle is achieved, which improves maintenance efficiency and installation accuracy.

CN223302879UActive Publication Date: 2025-09-05CHINA SOUTHERN AIRLINES CO LTD
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Patent Information

Application Number
CN202422798304.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-09-05
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

The aircraft maintenance industry lacks special tie rod adjustment tools, and the existing adjustment methods cannot accurately meet the length and angle requirements of the tie rod, resulting in insufficient installation accuracy.

Method used

An aircraft tie rod adjuster is designed, including a base and multiple adjustment components, including a slide rail, a slider and a fixing rod, which can be adjusted by a scale and nut to achieve precise adjustment of the tie rod length and angle.

Benefits of technology

It realizes the accuracy and stability of tie rod adjustment, simplifies the operation process, improves maintenance efficiency, and is suitable for tie rod adjustment of various angles and sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an airplane pull rod adjuster which comprises a base, a sliding rail is arranged on the base, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly and a fourth adjusting assembly are sequentially arranged on the sliding rail, and graduated scales are arranged on one side or two sides of the sliding rail. Through the first adjusting assembly, the second adjusting assembly, the third adjusting assembly and the fourth adjusting assembly, the problem that no pull rod adjusting device exists in the traditional technology is effectively solved; the tool is wide in application range and suitable for all important systems on an airplane, and the transmission accuracy and the fixing stability of the systems are ensured; according to the tool, all the pull rods on the airplane can be adjusted only by adopting different sliding blocks, the operation is labor-saving, the application range is wide, and the operation is simple and easy.
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Description

Technical Field

[0001] The utility model relates to the field of aircraft control system design, in particular to an aircraft pull rod regulator. Background Art

[0002] The tie rod is an important component of the aircraft's moving parts and is also an important fixing device for aircraft pipelines. The correct installation of the tie rod determines whether the aircraft's moving parts can move within the required accuracy and range, and whether the parts are installed in the correct position.

[0003] Currently, the aircraft maintenance industry lacks dedicated tools for adjusting tie rods, relying instead on experience. Adjustments are often made using two methods. According to the AMM manual, tie rods have specific length and angle requirements. During installation, multiple measurements are taken with a vernier caliper, averaging the measured length. Once the length is determined, the tie rod is placed in its actual position on the aircraft, and the angle is adjusted accordingly. This process can cause the tie rod length to change, failing to meet the manual's requirements. Alternatively, the manual lacks specific data, but instead refers to the dimensions of a disassembled component. Ensuring identical dimensions between the old and new components is difficult to achieve in practice. Utility Model Content

[0004] The utility model provides an aircraft tie rod adjuster, which aims to solve the problem that there is no special tie rod adjusting device in the current aircraft maintenance industry, and that the average value of multiple measurements taken according to the manual and the adjustment based on the size of disassembled parts cannot meet the accuracy requirements.

[0005] The technical solutions provided by this utility model are as follows:

[0006] An aircraft tie rod adjuster comprises a base, a slide rail is provided on the base along the length direction, a first adjustment component, a second adjustment component, a third adjustment component and a fourth adjustment component are provided on the slide rail in sequence, and a scale is provided on one side or both sides of the slide rail, and the scale is parallel to the slide rail;

[0007] The first adjustment assembly includes a first slider, the first slider is mounted on the slide rail, and the first slider is provided with a first fixing rod with an adjustable angle;

[0008] The second adjustment assembly has the same structure as the third adjustment assembly, and includes a second slider and a second fixing rod, the second fixing rod is arranged on the second slider along the first direction, and the second slider is installed on the slide rail;

[0009] The fourth adjustment assembly includes a third slider and a third fixing rod. The third fixing rod is arranged on the third slider along the second direction, and the third slider is installed on the slide rail.

[0010] Furthermore, the slide rails are double linear slide rails.

[0011] Furthermore, the first adjustment assembly further includes a dial, which is arranged at one end of the first slider, the front of the dial is perpendicular to the slide rail and is located directly above the slide rail, and the other end of the first slider is arranged on the double linear slide rail via a first nut and a first bolt;

[0012] The dial includes a dial body and a shell. The dial body is an annular structure. A slide groove is provided on the side wall of the dial body. A group of first mounting holes are relatively provided on the shell. The first fixing rod is installed in the first mounting hole. The first fixing rod is fixed in the slide groove. The end of the first fixing rod is tightened to the surface of the shell through a first nut.

[0013] Furthermore, the lower end of the second fixing rod is provided with an external thread section and a fixing block, the fixing block is clamped in the gap of the double linear slide rails, the external thread section passes through the second slider, and a second nut is installed on the external thread section. The second adjustment component adjusts its position on the slide rail through the second nut.

[0014] Furthermore, a group of mounting blocks are relatively arranged at one end of the third sliding block, a second mounting hole is relatively arranged on the mounting block, the third fixing rod is arranged in the second mounting hole, and both ends of the third fixing rod are tightened by second nuts.

[0015] Furthermore, a second screw hole is provided in the middle of the other end of the third slider, a second bolt is provided in the second screw hole, the bottom of the second bolt is clamped in the gap of the double linear slide rails, and the top of the second bolt passes through the third slider and is tightened by a third nut.

[0016] Furthermore, the axis of the dial, the axis of the second fixing rod, and the center line of the line connecting the two mounting blocks are all in the same plane.

[0017] Furthermore, the diameters of the first fixing rod, the second fixing rod and the third fixing rod are consistent.

[0018] Furthermore, it also includes bushings of various sizes, wherein the inner diameter of the bushing is consistent with the diameter of the first fixing rod, and the outer diameter of the bushing is adapted to pull rods of various sizes.

[0019] Furthermore, an angle ruler is provided on the housing.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model provides an aircraft tie rod adjuster, which effectively solves the problem of no tie rod adjustment device in traditional processes through a first adjustment component, a second adjustment component, a third adjustment component and a fourth adjustment component; the tool has a wide range of uses and is applicable to various important systems on an aircraft, ensuring the accuracy of system transmission and the stability of fixation; the tool can adjust all tie rods on the aircraft by only using different sliders, which saves labor, has a wide range of applications, and is simple and easy to operate; the tool has high accuracy in length measurement and can meet the requirements of the manual; the tool can be used for adjusting tie rods of various angles, and compared with traditional methods, the construction method is simple and time-saving, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure diagram of the aircraft pull rod regulator provided by the utility model Figure 1 ;

[0023] Figure 2 The structure diagram of the aircraft pull rod regulator provided by the utility model Figure 2 ;

[0024] Figure 3 A partial structural diagram of the fourth adjustment component in an embodiment of the utility model;

[0025] Figure 4 A schematic structural diagram of the first slider and the dial body in an embodiment of the utility model;

[0026] Figure 5 A schematic structural diagram of the housing in an embodiment of the present utility model;

[0027] Figure 6 A schematic structural diagram of the second fixing rod in an embodiment of the present utility model.

[0028] The reference numerals are as follows:

[0029] 1-base, 2-scale, 3-first adjustment component, 301-first slider, 302-dial, 3021-dial body, 3022-slide, 3023-housing, 3024-first mounting hole, 303-first fixing rod, 304-first nut, 305-first screw hole, 306-first track groove, 307-first nut, 308-first bolt, 4-second adjustment component, 401-second slider, 402-second fixing rod, 403-external threaded section, 404-second nut, 405-fixing block, 5-third adjustment component, 6-fourth adjustment component, 601-third slider, 602-mounting block, 603-third fixing rod, 604-third nut, 605-second mounting hole, 606-second screw hole, 607-second track groove, 608-second nut, 609-second bolt, 7-slide rail. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described below are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the accompanying drawings is intended to represent only selected embodiments of the present application and is not intended to limit the scope of protection claimed in the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present application without making any creative efforts shall fall within the scope of protection claimed in the present application.

[0032] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two elements or an interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] See Figure 1The present invention provides an aircraft tie rod adjuster, comprising a base 1, a slide rail 7 disposed along the length of the base 1, and a first adjustment assembly 3, a second adjustment assembly 4, a third adjustment assembly 5, and a fourth adjustment assembly 6 disposed on the slide rail 7 from left to right. A scale 2 is disposed on one or both sides of the slide rail 7, and the scale 2 is parallel to the slide rail 7. The positions of the first adjustment assembly 3, the second adjustment assembly 4, the third adjustment assembly 5, and the fourth adjustment assembly 6 on the slide rail 7 can be adjusted by nuts.

[0035] like Figure 2 As shown, the first adjustment assembly 3 includes a first slider 301, which is mounted on the slide rail 7. The first slider 301 is provided with an angle-adjustable first fixing rod 303. The angle range between the first fixing rod 303 and the second fixing rod is consistent with the angle range of all the tie rods (tie rods with angled ends).

[0036] The second adjustment assembly 4 and the third adjustment assembly 5 have the same structure. The second adjustment assembly 4 includes a second slider 401 and a second fixing rod 402. The second fixing rod 402 is arranged on the second slider 401 along the first direction. The second slider 401 is installed on the slide rail 7. The second adjustment assembly 4 and the third adjustment assembly 5 are used to adjust the horizontal pull rod at both ends.

[0037] The fourth adjustment assembly 6 includes a third slider 601 and a third fixing rod 603. The third fixing rod 603 is arranged on the third slider 601 along the second direction, and the third slider 601 is installed on the slide rail 7. The third fixing rod 603 is perpendicular to the fixing rod on the third adjustment assembly 5 and is suitable for a pull rod with perpendicular ends.

[0038] It should be noted that the second adjustment assembly 4 and the third adjustment assembly 5 have the same structure and are both equipped with a second fixing rod 402 pointing vertically upward (i.e., in the first direction). The two second fixing rods 402 can be used to adjust the horizontal pull rod at both ends. The position of the second fixing rod 402 is adjusted using the slider until the two ends of the old pull rod can be respectively inserted into the second fixing rod 402. The position of the second fixing rod 402 is then fixed to prevent it from moving. The length of the new pull rod is then adjusted until the two ends of the pull rod can be inserted into the second fixing rod 402. At this point, the length of the new pull rod is the same as that of the old pull rod.

[0039] If the ends of the tie rod are not horizontal, if there is a 90° difference between the two ends, they can be adjusted using the third adjustment assembly 5 and the fourth adjustment assembly 6. Use the slider to adjust the position of the fixed rod above the third adjustment assembly 5 and the third fixing rod 603 so that the horizontal end of the old tie rod can be mounted on the fixing rod of the third adjustment assembly 5, and the other end is fixed by the third fixing rod 603 arranged along the width direction of the slide rail (i.e., the second direction). That is, after determining the spacing between the third adjustment assembly 5 and the fourth adjustment assembly 6 using the old tie rod, the third and fourth adjustment assemblies 5 and 6 are fixed to the slide rail 7, and the length of the new tie rod is then adjusted until the two ends of the new tie rod can be mounted on the fixing rods of the third adjustment assembly 5 and the fourth adjustment assembly 6, respectively.

[0040] If the two ends of the pull rod are not horizontal and are not 90°, they can be adjusted through the first adjustment component 3 and the second adjustment component 4. The horizontal end of the pull rod is mounted on the second fixed rod 402, and the other end is mounted on the first fixed rod 303 of the first adjustment component 3. The angle of the first fixed rod 303 can be adjusted to adapt to pull rods of different angles.

[0041] Optionally, the slide rail 7 is a double linear slide rail 7 , and there is a gap between the two slide rails of the double linear slide rail 7 .

[0042] like Figure 4 As shown, the first adjustment assembly 3 also includes a dial 302, which is arranged at the right end of the first slider 301. The front of the dial 302 is perpendicular to the slide rail 7 and is located directly above the slide rail 7. The left end of the first slider 301 is set on the double linear slide rail 7 via a first nut 304 and a first bolt 308. Specifically, a first screw hole 305 is provided at the center of the left end of the first slider 301. The first bolt 308 is installed in the first screw hole 305. The bottom of the first bolt 308 is clamped in the gap of the slide rail 7, and the upper part passes through the first slider 301 and is tightened by the first nut 304. When the position of the first slider 301 needs to be adjusted, it is only necessary to loosen the first nut 304. After the position is determined, the first nut 304 is tightened to fix it. A first track groove 306 that adapts to the slide rail 7 is provided at the bottom of the first slider 301.

[0043] like Figure 5As shown, the dial 302 includes a dial body 3021 and a housing 3023. The dial body 3021 is annular in structure, with a slide groove 3022 provided on the side wall of the dial body 3021. The housing 3023 is provided with a set of first mounting holes 3024. The first fixing rod 303 is installed in the first mounting holes 3024 and fixed in the slide groove 3022. The end of the first fixing rod 303 is tightened to the surface of the housing 3023 via a first nut 307. The middle right portion of the housing 3023 is hollowed out, allowing a pull rod to be directly inserted into the dial body 3021 through the hollow portion of the housing 3023, and then secured by the first fixing rod 303. The length and number of the sliding grooves 3022 of the first fixing rod 303 can meet the needs of all pull rods with different angles at both ends. When the first nut 307 is loosened, the first fixing rod 303 can slide in the sliding grooves 3022, so that the first fixing rod 303 and the second fixing rod 402 have different angles.

[0044] like Figure 6 As shown, the lower end of the second fixed rod 402 is provided with an external thread section 403 and a fixed block 405. The fixed block 405 is clamped in the gap of the double linear slide rail 7. The external thread section 403 passes through the second slider 401. A second nut 404 is installed on the external thread section 403. The position of the second adjustment component 4 on the slide rail 7 is adjusted by the second nut 404.

[0045] like Figure 3 As shown, a mounting block 602 is positioned opposite the left end of the third slider 601. Mounting blocks 602 are positioned opposite each other with second mounting holes 605. A third fixing rod 603 is positioned within the second mounting holes 605, and both ends of the third fixing rod 603 are tightened with second nuts 608. A second screw hole 606 is positioned in the middle of the right end of the third slider 601. A second bolt 609 is positioned within the second screw hole 606. The bottom of the second bolt 609 is positioned within the gap between the dual linear guide rails 7. The top of the second bolt 609 extends through the third slider 601 and is tightened with a third nut 604. A second track groove 607, which mates with the guide rail 7, is positioned at the bottom of the third slider 601. The third slider 601 is positioned across the guide rail 7 via the second track groove 607. During use, one end of the pull rod is inserted into the mounting block 602. The third fixing rod 603 is then passed through the end of the pull rod and tightened with the second nut 608. The other end of the pull rod is then secured to the fixing rod of the third adjustment assembly 5.

[0046] Optionally, the axis of the dial 302 , the axis of the second fixing rod 402 , and the center line of the line connecting the two mounting blocks 602 are all in the same plane.

[0047] Optionally, the diameters of the first fixing rod 303 , the second fixing rod 402 , and the third fixing rod 603 are the same.

[0048] Optionally, in order to adapt to pull rods with different end sizes, a variety of bushings of different sizes are needed. The inner diameter of the bushing is consistent with the diameter of the first fixed rod 303, and the outer diameter of the bushing is adapted to pull rods of different sizes. The bushing is put on the fixed rod and then the pull rod is put on, so that the device can be suitable for pull rods with all different end sizes.

[0049] Optionally, in order to precisely adjust the angle of the first fixing rod 303 on the first adjustment assembly 3 , an angle ruler may be provided on the housing 3023 .

[0050] There are two ways to use the aircraft lever adjuster, one of which is:

[0051] 1. Select the two corresponding adjustment components according to the pull rod. If the pull rod is horizontal at both ends, select the second adjustment component 4 and the third adjustment component 5, and fix the second adjustment component 4;

[0052] 2. Adjust the third adjustment component 5 until the size required by the manual is reached;

[0053] 3. In this state, the positions of the second adjustment component 4 and the third adjustment component 5 are fixed. Next, the length of the pull rod is adjusted until both ends of the pull rod to be adjusted can be mounted on the fixed rods of the second adjustment component 4 and the third adjustment component 5.

[0054] Another way is:

[0055] 1. Remove the old tie rod from the aircraft and install it on the two sliders without changing any configuration (select the slider to be used according to the tie rod);

[0056] 2. Fix the two sliders and remove the old pull rod;

[0057] 3. Place one end of the new part on a fixed slider, fix the other end by hand, and rotate the middle adjustment rod of the new part. When the size of the new part is the same as the old part, the hand-fixed end can completely fall into the fixed rod of the other slider;

[0058] 4. The size of the new part is now adjusted.

[0059] In summary, the utility model provides an aircraft tie rod adjuster, which effectively solves the problem of no tie rod adjustment device in traditional processes through the first adjustment component 3, the second adjustment component 4, the third adjustment component 5 and the fourth adjustment component 6; the tooling has a wide range of uses and is suitable for various important systems on the aircraft, ensuring the accuracy of the system transmission and the stability of the fixation; the tooling only uses different sliders to achieve the adjustment of all tie rods on the aircraft, which is labor-saving, has a wide range of applications, and is simple and easy to operate; the tooling has high accuracy in length measurement and can meet the requirements of the manual; the tooling can be used for the adjustment of tie rods of various angles. Compared with traditional methods, the construction method is simple and time-saving, and the maintenance efficiency is improved.

[0060] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An aircraft tie rod adjuster, characterized in that: The invention comprises a base, wherein a slide rail is provided on the base along the length direction, and a first adjustment component, a second adjustment component, a third adjustment component and a fourth adjustment component are sequentially provided on the slide rail, and a scale is provided on one side or both sides of the slide rail, and the scale is parallel to the slide rail; The first adjustment assembly includes a first slider, the first slider is mounted on the slide rail, and the first slider is provided with a first fixing rod with an adjustable angle; The second adjustment assembly has the same structure as the third adjustment assembly, and includes a second slider and a second fixing rod, the second fixing rod is arranged on the second slider along the first direction, and the second slider is installed on the slide rail; The fourth adjustment assembly includes a third slider and a third fixing rod. The third fixing rod is arranged on the third slider along the second direction, and the third slider is installed on the slide rail.

2. The aircraft tie rod adjuster according to claim 1, characterized in that: The slide rails are double linear slide rails.

3. The aircraft tie rod adjuster according to claim 2, characterized in that: The first adjustment assembly further includes a dial, which is disposed at one end of the first slider, with the front of the dial being perpendicular to the slide rail and located directly above the slide rail, and the other end of the first slider being disposed on the double linear slide rail via a first nut and a first bolt; The dial includes a dial body and a shell. The dial body is an annular structure. A slide groove is provided on the side wall of the dial body. A group of first mounting holes are relatively provided on the shell. The first fixing rod is installed in the first mounting hole. The first fixing rod is fixed in the slide groove. The end of the first fixing rod is tightened to the surface of the shell through a first nut.

4. The aircraft tie rod adjuster according to claim 3, characterized in that: The lower end of the second fixing rod is provided with an external thread section and a fixing block. The fixing block is clamped in the gap of the double linear slide rails. The external thread section passes through the second sliding block. A second nut is installed on the external thread section. The position of the second adjustment component on the slide rail is adjusted by the second nut.

5. The aircraft tie rod adjuster according to claim 4, characterized in that: A group of mounting blocks are arranged opposite to one end of the third sliding block, and second mounting holes are arranged opposite to each other on the mounting blocks. The third fixing rod is arranged in the second mounting hole, and both ends of the third fixing rod are tightened by second nuts.

6. The aircraft tie rod adjuster according to claim 5, characterized in that: A second screw hole is provided in the middle of the other end of the third slider, and a second bolt is provided in the second screw hole. The bottom of the second bolt is clamped in the gap of the double linear slide rails, and the top of the second bolt passes through the third slider and is tightened by a third nut.

7. The aircraft tie rod adjuster according to claim 5, characterized in that: The axis of the dial, the axis of the second fixing rod and the center line of the line connecting the two mounting blocks are all in the same plane.

8. The aircraft tie rod adjuster according to any one of claims 5 to 7, characterized in that: The diameters of the first fixing rod, the second fixing rod, and the third fixing rod are consistent.

9. The aircraft tie rod adjuster according to claim 8, characterized in that: It also includes bushings of various sizes. The inner diameter of the bushing is consistent with the diameter of the first fixing rod, and the outer diameter of the bushing is adapted to pull rods of various sizes.

10. The aircraft tie rod adjuster according to claim 3 or 7, characterized in that: An angle ruler is also provided on the shell.