Air freight with eccentric buckle

By designing stamped plates with reinforcing ribs and eccentric buckles with U-shaped elastic elements, the problems of dullness and insufficient structural strength of traditional eccentric buckles are solved, achieving a convenient and safe binding effect in air cargo.

CN224361729UActive Publication Date: 2026-06-16SHANGHAI BAIGU METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BAIGU METAL PROD CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing eccentric buckles for air cargo have problems such as jamming, lack of secure fastening, and insufficient structural strength, which affect the ease of operation and safety.

Method used

An eccentric buckle comprising an inner rotating assembly, an outer body assembly, and a semi-circular shaft is designed. The inner rotating assembly and the outer body assembly are reinforced with stamped plates containing reinforcing ribs to enhance structural strength. Automatic locking and anti-loosening are achieved through U-shaped elastic elements and safety fixing pins. The inner rotating assembly rotates freely around the semi-circular shaft, and the outer body assembly cooperates with the inner rotating assembly to achieve the engagement and disengagement states.

Benefits of technology

It achieves easy, quick, safe, and reliable binding, prevents the binding straps from coming loose, improves structural strength, and ensures safety and efficiency in air freight.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224361729U_ABST
    Figure CN224361729U_ABST
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Abstract

The utility model belongs to goods transport equipment, concretely relates to an eccentric buckle for air freight, including inner rotation group, outer body group and semicircle axle, the middle part fixed mounting semicircle axle of outer body group, inner rotation group is movably sleeved on semicircle axle, and inner rotation group revolves freely around semicircle axle as the pivot. The utility model uses, through the inner rotation group forward rotation, the U -shaped notch top limiting contact of stop piece and outer body side piece, make the U -shaped elastic element deformation, U -shaped elastic element energy storage, wait for eccentric buckle to complete the buckle, the stop piece and U -shaped notch correspond to this time, realize the rotation limiting of inner rotation group under the eccentric buckle buckle state, complete the lock inner rotation group, reach automatic lock, make its operation easy and convenient fast.
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Description

Technical Field

[0001] This utility model pertains to cargo transportation equipment, specifically, it relates to an eccentric buckle for air freight. Background Technology

[0002] Straps used for tying goods generally require a flexible adjustment mechanism for easy installation and length adjustment, while also needing a stable locking function to ensure the strap remains at a constant length. Currently, this is commonly achieved using eccentric buckles; however, traditional eccentric buckles have the following drawbacks:

[0003] 1. The stop plate (moving plate) inside the eccentric buckle often uses a torsion spring on one side, which can cause jamming when the buckle is pressed in.

[0004] 2. When the eccentric buckle is in the unfastened position, it lacks a safety fixing pin, which affects the tightening or loosening of the binding operation;

[0005] 3. The stamped parts used for the reinforcing plates lack reinforcing ribs, which poses a disadvantage in terms of structural strength.

[0006] Therefore, an eccentric buckle tool that is easy to operate, highly efficient in binding, and not easy to loosen or slip off is particularly important in air freight. Utility Model Content

[0007] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an eccentric buckle for air cargo transportation.

[0008] According to the present invention, an eccentric buckle for air cargo includes an inner rotating assembly, an outer body assembly, and a semi-circular shaft. The semi-circular shaft is fixedly installed in the middle of the outer body assembly. The inner rotating assembly is movably sleeved on the semi-circular shaft and can rotate freely around the semi-circular shaft. An inner reinforcing plate is provided inside the inner rotating assembly. The inner reinforcing plate is made of stamped plate with added reinforcing ribs. A stop plate is provided inside the inner rotating assembly. A U-shaped elastic element is provided between the stop plate and the inner reinforcing plate. An outer reinforcing plate is provided inside the outer body assembly. The outer reinforcing plate is made of stamped plate with added reinforcing ribs. A U-shaped groove is opened at the rear end of the outer body assembly. The U-shaped groove engages with the stop plate. Openings are provided on both the inner rotating assembly and the outer body assembly, and corresponding safety fixing pins are inserted into the openings.

[0009] In a preferred embodiment, the inner rotating assembly consists of two inner rotating side plates, an inner reinforcing plate, a stop plate, an inner fixed knurled round bar, and a U-shaped elastic element.

[0010] In a preferred embodiment: the inner reinforcing plate is inserted and fixed between the front ends of the two inner rotating side plates.

[0011] In a preferred embodiment: the rear ends of the two inner rotating side plates are connected by an internally fixed knurled round bar.

[0012] In a preferred embodiment: the stop plate is disposed on the rear side of the inner reinforcing plate, and both inner rotating side plates are provided with long sliding holes, and the stop plate slides in a directional and limited manner within the long sliding holes.

[0013] In a preferred embodiment, the outer body assembly consists of two outer body side pieces, an outer reinforcing piece, a limiting rod, and an outer fixing round rod.

[0014] In a preferred embodiment: the external fixing rod is inserted and fixed between the front ends of the two outer body side plates, and the limiting rod is inserted and fixed between the rear ends of the two outer body side plates.

[0015] In a preferred embodiment: the outer reinforcing piece is inserted and fixed between the rear bottom of the two outer body side pieces.

[0016] In a preferred embodiment: the outer reinforcing plate, the limiting rod, and the outer fixing round rod are all connected and fixed to the outer body side plate by an insertion method.

[0017] In a preferred embodiment: the U-shaped slot is formed at the top rear side of the two outer body side pieces.

[0018] In a preferred embodiment: a fixing hole is provided in the middle of the two inner rotating side pieces, and a notch is provided in the middle of the bottom of the two inner rotating side pieces. A positioning hole one is provided in the front middle of the two outer body side pieces, and positioning holes two and three are provided in the middle of the two outer body side pieces. The fixing hole can correspond to positioning hole one in the eccentric buckle unfastening state, and the fixing hole can correspond to positioning hole three in the eccentric buckle engaging state. The notch can correspond to positioning hole two in the eccentric buckle engaging state.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When this utility model is in use, the inner rotating group rotates in the forward direction, and the stop plate makes limited contact with the top of the U-shaped groove of the outer body side plate, causing the U-shaped elastic element to deform and store energy. When the eccentric buckle is engaged, the stop plate corresponds to the U-shaped groove, realizing the rotation limit of the inner rotating group in the engaged state of the eccentric buckle, completing the locking of the inner rotating group, achieving automatic locking, making its operation easy, convenient and quick.

[0021] 2. When using this utility model, by inserting a safety fixing pin into the fixing hole and positioning hole three, and the notch and positioning hole two, and by completely passing the safety fixing pin through the inner and outer body assembly, the stop piece that is fastened into the U-shaped groove is prevented from accidentally popping out, thereby causing the inner rotating assembly to rotate freely, avoiding the binding strap from loosening, and avoiding affecting operational safety.

[0022] 3. When this utility model is used, the structural strength of the overall structure is increased by using stamped plates for the inner reinforcing sheet and adding reinforcing ribs for the outer reinforcing sheet, thereby preventing breakage. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a structural schematic diagram of the present invention in the unfastened state;

[0025] Figure 2 This is a structural diagram of the fastening process of this utility model;

[0026] Figure 3 This is a structural diagram of the snap-fit ​​state of this utility model;

[0027] Figure 4 This is a side view of the present invention;

[0028] Figure 5 This is a top view of the utility model.

[0029] Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] like Figures 1-5 As shown, this utility model discloses an eccentric buckle for air cargo, including an inner rotating assembly, an outer body assembly, and a semi-circular shaft 301. The semi-circular shaft 301 is fixedly installed in the middle of the outer body assembly. The inner rotating assembly is movably sleeved on the semi-circular shaft 301. The inner rotating assembly rotates freely around the semi-circular shaft 301 as its axis. When the inner rotating assembly rotates in the forward direction, it engages with the outer body assembly to achieve a snap-fit ​​state. When the inner rotating assembly rotates in the reverse direction, it opens and closes with the outer body assembly to achieve a release state.

[0032] The inner rotating assembly consists of two inner rotating side plates 101, an inner reinforcing plate 102, a stop plate 103, an inner fixed knurled round bar 104, and a U-shaped elastic element 302. The inner reinforcing plate 102 is inserted and fixedly installed between the front ends of the two inner rotating side plates 101. The inner reinforcing plate 102 is made of stamped plate and reinforced with ribs to increase the structural strength of the overall structure and prevent breakage. The rear ends of the two inner rotating side plates 101 are connected by the inner fixed knurled round bar 104 to avoid interference with the outer body side plate 201 when the inner fixed knurled round bar 104 is stuck between the two inner rotating side plates 101. This is because the inner fixed knurled round bar 104 is too long and causes the inner rotating assembly to rotate freely around the semi-circular axis 301. The inner fixed knurled round bar 104 can achieve high friction through the knurling on the outer side of the bar. To reduce slippage during the tightening of the straps, a stop plate 103 is provided on the rear side of the inner reinforcing plate 102. Both inner rotating side plates 101 have long sliding holes for directional and limiting sliding of the stop plate 103. A fixing hole 105 is provided in the middle of the two inner rotating side plates 101. The fixing hole 105 can correspond to the positioning hole 205 when the eccentric buckle is unfastened, and can also correspond to the positioning hole 207 when the eccentric buckle is engaged. A notch is provided at the bottom center of both inner rotating side plates 101. The notch can correspond to the positioning hole 206 when the eccentric buckle is engaged. The inner reinforcing plate 102 and the stop plate 103 are connected by a U-shaped elastic element 302. The elastic deformation capability of the U-shaped elastic element 302 is used to reset the sliding of the stop plate 103 in the long sliding hole.

[0033] The outer body assembly consists of two outer body side pieces 201, an outer reinforcing piece 202, a limiting rod 203, and an outer fixing round rod 204. The outer fixing round rod 204 is inserted and fixedly installed between the front ends of the two outer body side pieces 201, the limiting rod 203 is inserted and fixedly installed between the rear ends of the two outer body side pieces 201, and the outer reinforcing piece 202 is inserted and fixedly installed between the rear bottom sides of the two outer body side pieces 201. The outer reinforcing piece 202 is made of stamped plate and reinforced with ribs to increase the structural strength of the overall structure and prevent the outer reinforcing piece 202 from breaking. At the same time, the outer reinforcing piece 202, the limiting rod 203, and the outer fixing round rod 204 are all connected and fixed to the outer body side pieces 201 by insertion, so that the force at the connection can be effectively distributed. On the outer body side plate 201, the connection between the outer reinforcing plate 202, the limiting rod 203, the outer fixing round rod 204 and the outer body side plate 201 is reduced to reduce the problem of connection breakage. The rear top of the two outer body side plates 201 are provided with U-shaped slots that slide corresponding to the stop plate 103. After the inner rotating group rotates in the forward direction and engages with the outer body group to reach the engaged state, the stop plate 103 can be engaged into the U-shaped slot while sliding in the long sliding hole. This realizes the rotation limit of the inner rotating group in the eccentric engagement state and completes the locking of the inner rotating group. The middle front side of the two outer body side plates 201 is provided with positioning hole one 205, and the middle of the two outer body side plates 201 is provided with positioning hole two 206 and positioning hole three 207.

[0034] Working principle

[0035] When this utility model is in use, the inner rotating group rotates freely around the semi-circular shaft 301 as the axis. The inner rotating group rotates in the opposite direction and opens and closes with the outer body group to achieve the buckle state. The safety fixing pin is inserted into the positioning hole 205 and the fixing hole 105 and completely passes through the inner and outer body groups to prevent the inner rotating group from rotating freely and avoid affecting the tightening or loosening of the binding strap. One end (end A) of the binding strap is passed between the outer reinforcing plate 202 and the limiting rod 203. Then, one end (end A) of the binding strap is wrapped around the outside of the inner fixed knurled round rod 104 and passed between the inner fixed knurled round rod 104 and the semi-circular shaft 301. Then, one end (end A) of the binding strap is turned back and passed out of the outer body group between the outer reinforcing plate 202 and the limiting rod 203. At this time, pulling one end (end A) of the binding strap can tighten the binding strap, and pulling the other end (end B) of the binding strap can loosen the binding strap.

[0036] Tighten and adjust the binding webbing. The inner rotating group rotates clockwise and engages with the outer body group to achieve the engaged state. Pull out the safety fixing pin in the positioning hole 1 205 and the fixing hole 105. The stop plate 103 makes limited contact with the top of the U-shaped groove of the outer body side plate 201, causing the U-shaped elastic element 302 to deform and store energy. When the eccentric buckle is engaged, the stop plate 103 corresponds to the U-shaped groove, realizing the rotation limit of the inner rotating group in the engaged state of the eccentric buckle, and completing the locking of the inner rotating group. The safety fixing pin is then inserted into the fixing hole 105 and the positioning hole 3 207, and the notch and the positioning hole 2 206, and the safety fixing pin is completely passed through the inner and outer body groups to prevent the stop plate 103, which is fastened into the U-shaped groove, from popping out accidentally, thereby causing the inner rotating group to rotate freely and preventing the binding strap from loosening.

[0037] It should be noted that another binding webbing can be fixed on the outer fixing round bar 204, forming a loop with the previous binding webbing, thereby achieving quick and convenient bundling and unloading of goods.

[0038] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An eccentric buckle for air cargo transport, characterized in that, The assembly includes an inner rotating assembly, an outer body assembly, and a semi-circular shaft (301). The semi-circular shaft (301) is fixedly installed in the middle of the outer body assembly. The inner rotating assembly is movably sleeved on the semi-circular shaft (301) and rotates freely around the semi-circular shaft (301). An inner reinforcing plate (102) is provided inside the inner rotating assembly. The inner reinforcing plate (102) is made by adding reinforcing ribs to a stamped plate. A stop plate (103) is provided inside the inner rotating assembly. A U-shaped elastic element (302) is provided between the stop plate (103) and the inner reinforcing plate (102). An outer reinforcing plate (202) is provided inside the outer body assembly. The outer reinforcing plate (202) is made by adding reinforcing ribs to a stamped plate. A U-shaped groove is provided at the rear end of the outer body assembly. The U-shaped groove is engaged with the stop plate (103). Openings are provided on both the inner rotating assembly and the outer body assembly. Corresponding safety fixing pins are inserted into the openings.

2. The eccentric buckle for air cargo as described in claim 1, characterized in that, The inner rotating assembly consists of two inner rotating side plates (101), an inner reinforcing plate (102), a stop plate (103), an inner fixed knurled round bar (104), and a U-shaped elastic element (302).

3. The eccentric buckle for air cargo as described in claim 2, characterized in that, The inner reinforcing plate (102) is inserted and fixed between the front ends of the two inner rotating side plates (101).

4. The eccentric buckle for air cargo as described in claim 2, characterized in that, The two inner rotating side plates (101) are connected at their rear ends by an internally fixed knurled round bar (104).

5. The eccentric buckle for air cargo as described in claim 2, characterized in that, The stop plate (103) is located on the rear side of the inner reinforcing plate (102). Both inner rotating side plates (101) are provided with long sliding holes, and the stop plate (103) slides in a directional and limited manner within the long sliding holes.

6. The eccentric buckle for air cargo as described in claim 2, characterized in that, The outer body assembly consists of two outer body side plates (201), an outer reinforcing plate (202), a limiting rod (203), and an outer fixing round rod (204).

7. The eccentric buckle for air cargo as described in claim 6, characterized in that, The external fixing rod (204) is inserted and fixed between the front ends of the two outer body side pieces (201), and the limiting rod (203) is inserted and fixed between the rear ends of the two outer body side pieces (201).

8. The eccentric buckle for air cargo as described in claim 6, characterized in that, The external reinforcing piece (202) is inserted and fixed between the rear bottom of the two outer body side pieces (201).

9. The eccentric buckle for air cargo as described in claim 6, characterized in that, The external reinforcing plate (202), the limiting rod (203), and the external fixing round rod (204) are all connected and fixed to the outer body side plate (201) by an insertion method.

10. The eccentric buckle for air cargo as described in claim 6, characterized in that, A fixing hole (105) is provided in the middle of the two inner rotating side pieces (101). A notch is provided in the middle of the bottom of the two inner rotating side pieces (101). A positioning hole one (205) is provided in the front of the middle of the two outer body side pieces (201). A positioning hole two (206) and a positioning hole three (207) are provided in the middle of the two outer body side pieces (201). The fixing hole (105) can correspond to the positioning hole one (205) in the eccentric buckle unfastening state. The fixing hole (105) can correspond to the positioning hole three (207) in the eccentric buckle engaging state. The notch can correspond to the positioning hole two (206) in the eccentric buckle engaging state.