Lateral guiding limiting device and air freight transport system

Abstract

The utility model discloses a side guide limiting device and an air freight system. The side guide limiting device comprises a mounting bracket, a first guide roller, a vertical lock head and a second guide roller, the mounting bracket is of a linear structure and has a C-shaped section; vertical lock heads and first guide rollers are installed at the two ends of the installation support, a plurality of second guide rollers are arranged between the two first guide rollers, the two ends of the first guide rollers and the two ends of the second guide rollers are rotationally connected to the upper side and the lower side of the installation support, and the circumferential face parts of the guide rollers extend out of openings. The opening extends towards the opening direction. The problem that in the conveying process of the container, due to the fact that the installation distance of the side guiding devices is too large, the container is stuck is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the field of air freight and relates to a side guide limiting device and an air freight system. Background Art

[0002] As a key component of air cargo systems, side guides and limiters are typically installed on the aircraft floor's mounting rails or load-bearing surfaces at the edge of the system. They provide guidance through their roller units and transfer loads acting on the containerized unit to the aircraft's load-bearing components through the side guides themselves, providing both directional and reverse heading guidance and vertical motion limiting for the containerized air cargo unit.

[0003] The existing side guide limit device has a complex structure, is inconvenient to install, and the large installation spacing can easily cause the small container to get stuck. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a side guide limit device and an air cargo system to effectively solve the problem of container jamming caused by excessive installation spacing of the side guide devices during container transportation.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A side guide limit device includes a mounting bracket, a first guide roller, a vertical locking head and a second guide roller;

[0007] The mounting bracket is a linear structure with a C-shaped cross-section; vertical locks and first guide rollers are installed at both ends of the mounting bracket, and multiple second guide rollers are arranged between the two first guide rollers. The first guide rollers and the second guide rollers are rotatably connected at both ends to the upper and lower sides of the mounting bracket, and the peripheral surface of the guide rollers extends from the opening. The vertical lock is located at the top of the mounting bracket and extends toward the opening.

[0008] Preferably, both ends of the mounting bracket are fixedly mounted on the floor of the aircraft cabin by fixing bolts and fixing nuts.

[0009] Furthermore, a stop washer is provided at the bottom of the fixing nut.

[0010] Furthermore, the fixing bolt passes through the mounting bracket, the first guide roller and the vertical locking head and is connected to the fixing nut.

[0011] Preferably, a boss structure is provided at the bottom of the vertical lock head, and the boss structure is clamped on the upper plane of the mounting bracket during installation.

[0012] Preferably, the second guide roller is rotatably connected to a fixed spindle, and the fixed spindle is fixedly mounted on upper and lower sides of the mounting bracket.

[0013] Furthermore, elastic retaining rings are provided between the second guide roller and the upper and lower sides of the mounting bracket.

[0014] Preferably, the bottom of the portion of the vertical lock head extending toward the opening is flat.

[0015] Furthermore, a rubber pad is provided at the bottom of the portion of the vertical lock head extending toward the opening.

[0016] An air cargo system includes at least two side guide limit devices, which are respectively located on the left and right sides of the aircraft cabin floor and parallel to the aircraft cabin axis. The distance between the two side guide limit devices is the same as the width of the cargo pallet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This new model integrates limiting and guiding functions, enabling both reverse-course guidance and vertical limiting. The linear design of the mounting bracket effectively resolves the issue of ULDs getting stuck during transport due to excessive spacing between the side guides. The use of multiple, evenly spaced guide rollers eliminates stalls caused by single roller failure, reducing the number of components and increasing the smoothness and linearity of container transport, improving the reliability and cost-effectiveness of the freight system.

[0019] Furthermore, the boss structure at the bottom of the vertical lock head can prevent the vertical lock head from rotating along the axis of the fixing bolt, thereby causing the vertical limit to fail.

[0020] Furthermore, a rubber pad is provided at the bottom of the portion of the vertical lock head extending toward the opening direction, which can provide effective buffering during vertical limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the side guide limit device and the air cargo system of the present utility model;

[0022] Figure 2 This is a schematic diagram of the side guide limit device and the vertical lock structure of the air cargo system of the present invention.

[0023] Among them: 1. Mounting bracket, 2. Fixing bolt, 3. First guide roller, 4. Vertical lock head, 5. Stop washer, 6. Fixing nut, 7. Second guide roller, 8. Elastic retaining ring, 9. Fixed spindle. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting 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 technical features indicated. 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 present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internally connected between two elements or an interactive relationship between two elements. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0029] like Figure 1 As shown, the side guide limit device and air cargo system described in the utility model include a mounting bracket 1, a fixing bolt 2, a first guide roller 3, a vertical lock head 4, a stop washer 5, a fixing nut 6, a second guide roller 7, an elastic retaining ring 8 and a fixed spindle 9.

[0030] In the present invention, the side guide limit device structure diagram is as follows: Figure 1 As shown, the mounting bracket 1 is a long linear structure with a C-shaped cross-section and an opening facing the axis of the aircraft cabin. The mounting bracket 1 and the vertical lock head 4 are fixed to the floor of the aircraft cabin by multiple fixing bolts 2. The vertical lock head 4 is located at the top of the mounting bracket 1 and extends toward the opening, which is used to limit the cargo pallet in the vertical direction to prevent the cargo pallet from bouncing up and disengaging from the side guide limit device during flight turbulence. The guide roller is rotatably installed at the opening of the mounting bracket 1, and the two ends of the guide roller are rotatably connected to the upper and lower sides of the mounting bracket 1. The peripheral surface of the guide roller extends from the opening. The guide roller plays the role of guidance and side limitation, which not only blocks the left and right movement of the cargo pallet, but also reduces contact friction when the cargo pallet moves in the heading and counter-heading directions. The side guide limit device has a simple structure and is easy to disassemble.

[0031] Both ends of the mounting bracket 1 are fixed to the aircraft cabin floor by fixing bolts 2 and fixing nuts 6 , and the bottom of the fixing nut 6 is prevented from loosening by a stop washer 5 .

[0032] The guide rollers include a first guide roller 3 and a second guide roller 7. The second guide roller 7 is rotatably mounted on a fixed spindle 9 and axially secured by a circlip 8. The fixed spindle 9 is fixedly mounted on the upper and lower sides of the mounting bracket 1. The mounting bracket 1 is equipped with vertical locking heads 4 and the first guide roller 3 at both ends, with two or more second guide rollers 7 evenly spaced in the middle. During operation, the first and second guide rollers 3 and 7 provide both directional guidance along and against the aircraft's course, while the vertical locking heads 4 provide vertical limiting.

[0033] The vertical locking head 4 is located on the top of the mounting bracket 1 , and the fixing bolt 2 passes through the mounting bracket 1 , the first guide roller 3 , and the vertical locking head 4 and is connected to the fixing nut 6 .

[0034] There is a boss structure at the bottom of the vertical lock head 4, which is stuck on the upper plane of the mounting bracket 1 during installation, preventing the vertical lock head 4 from rotating along the axis of the fixing bolt 2, thereby causing the vertical limit to fail.

[0035] The bottom of the portion of the vertical lock head 4 extending toward the opening direction is a plane, and a rubber pad is provided at the bottom of the portion of the vertical lock head 4 extending toward the opening direction, which can provide effective buffering during vertical limiting.

[0036] This embodiment also discloses an air cargo system, including the aforementioned side guide and limiter devices. There are at least two side guide and limiter devices, located on the left and right sides of the aircraft cabin floor, parallel to the aircraft cabin axis. The spacing between the two side guide and limiter devices is the same as the width of the cargo pallet. The side guide and limiter devices are used to limit the cargo pallet in the left and right directions and guide the cargo pallet's directional and counter-directional movement. The design can be customized for different cargo aircraft models by adjusting the number of rollers and vertical locks, providing high flexibility.

[0037] The utility model evenly installs guide rollers in the groove-shaped mounting bracket 1, and adds vertical locks 4 at the guide roller positions at the front and rear ends of the mounting bracket 1 and fixes them in the aircraft floor mounting rail or on the mounting plane through long bolts.

[0038] Mounting bracket 1 features a linear slot design and is fixedly mounted on the aircraft floor. Multiple guide rollers are evenly spaced within the mounting slot of mounting bracket 1, and vertical locks 4 are installed at the ends of the bracket 1 in place of the guide rollers. This compact structure and rational layout allow for the addition or removal of guide rollers and vertical locks 4 as needed, enhancing the cargo system's loading versatility, stability, and economic efficiency.

[0039] The mounting bracket 1 adopts a groove linear design, and the groove portion is mounted on the aircraft bottom plate through fixing bolts.

[0040] Multiple guide rollers are evenly distributed within the grooves of mounting bracket 1 and are secured to mounting bracket 1 via a fixed spindle 9. This distributed design effectively eliminates the problem of stalling caused by failure of a single guide roller, while also improving the linearity of the ULD's side guides, thereby enhancing transmission accuracy.

[0041] The vertical lock head 4 and the mounting bracket 1 are fixed to the aircraft floor mounting rail via fixing bolts 2 .

[0042] The device integrates limiting and guiding functions, and can realize heading and reverse heading guidance, vertical limiting and lateral limiting functions, thereby improving the reliability, economy and integration of the freight system.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be considered that the applicant did not consider such subject matter to be part of the disclosed utility model subject matter.

Claims

1. A side guide limit device, characterized in that: It comprises a mounting bracket (1), a first guide roller (3), a vertical locking head (4) and a second guide roller (7); The mounting bracket (1) is a linear structure with a C-shaped cross section; a vertical lock head (4) and a first guide roller (3) are installed at both ends of the mounting bracket (1); a plurality of second guide rollers (7) are arranged between the two first guide rollers (3); the first guide rollers (3) and the second guide rollers (7) are rotatably connected at both ends to the upper and lower sides of the mounting bracket (1); the peripheral surface of the guide rollers extends from the opening; the vertical lock head (4) is located at the top of the mounting bracket (1) and extends toward the opening.

2. The side guide limiter according to claim 1, characterized in that: Both ends of the mounting bracket (1) are fixedly mounted on the floor of the aircraft cabin via fixing bolts (2) and fixing nuts (6).

3. The side guide limiter according to claim 2, characterized in that: A stop washer (5) is provided at the bottom of the fixing nut (6).

4. The side guide limiter according to claim 2, characterized in that: The fixing bolt (2) passes through the mounting bracket (1), the first guide roller (3) and the vertical locking head (4) and is connected to the fixing nut (6).

5. The side guide limiting device according to claim 1, characterized in that: The bottom of the vertical lock head (4) is provided with a boss structure, and the boss structure is clamped on the upper plane of the mounting bracket (1) during installation.

6. The side guide limiting device according to claim 1, characterized in that: The second guide roller (7) is rotatably connected to the fixed spindle (9), and the fixed spindle (9) is fixedly mounted on the upper and lower sides of the mounting bracket (1).

7. The side guide limiter according to claim 6, characterized in that: An elastic retaining ring (8) is provided between the second guide roller (7) and the upper and lower sides of the mounting bracket (1).

8. The side guide limiter according to claim 1, characterized in that: The bottom of the portion of the vertical lock head (4) extending toward the opening direction is a plane.

9. The side guide limiting device according to claim 8, characterized in that: A rubber pad is provided at the bottom of the portion of the vertical lock head (4) extending toward the opening.

10. An air cargo system, characterized in that: It comprises at least two side guide limit devices according to any one of claims 1 to 9, the two side guide limit devices are respectively located on the left and right sides of the aircraft cabin floor, parallel to the aircraft cabin axis, and the distance between the two side guide limit devices is the same as the width of the cargo pallet.

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