Stacking interlocking type aeronautical part transport case
By designing an interlocking structure of lock holes, top rods, and locking blocks in the air transport container, the problem of sliding safety risks in traditional transport containers is solved, and stable stacking transport is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU AERONAUTIC POLYTECHNIC
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional air transport containers lack locking mechanisms, which makes it easy for containers stacked on top to slide, posing a safety risk.
A stackable interlocking aviation parts transport box was designed, which uses locking components including a lock hole, a top rod, a lock block, and a lifting structure. The movement of the top rod causes the large end of the lock block to open and contact the inner wall of the lock hole to lock the upper box. Combined with the fixed rod and guide hole, the boxes are stably stacked.
This effectively prevents the upper transport containers from sliding and improves the safety of stacked transport.
Smart Images

Figure CN224146537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transportation technology, and in particular to a stacked interlocking aviation parts transport box. Background Technology
[0002] With the development of equipment transportation, a type of transport box has emerged. Transport boxes are used to secure and protect items to be transported, preventing unnecessary damage caused by bumps or moisture during transit. Traditional transport boxes combine flight cases with cushioning materials, effectively solving the problems of moisture and damage to items during transport.
[0003] The Chinese utility model patent (authorization announcement number: CN2302228Y, name: air transport container) consists of an alloy aluminum main frame, reinforcing ribs, skin, and corner profiles. Each frame top has a lifting lug. The skin is riveted to the reinforcing ribs and fixed together with the corner profiles to form a lightweight and sturdy container. The front of the container has locking seats on the upper and lower frames, locking rods and fixing clips on the door, and container fixing holes on the bottom corner profiles. There are cargo fixing seats on the inside of the container, ventilation holes on the sides, and waterproofing material between the skin and reinforcing ribs. The door has sealing strips. It has the advantages of being lightweight, strong, easy to load and unload, easy to inspect, and able to fully utilize aircraft cabin space, which will play a positive role in peacetime air transport and wartime operational supply. However, it lacks a locking structure, which makes it easy for stacked containers to slide, posing a significant safety risk. Utility Model Content
[0004] The purpose of this invention is to provide a stackable interlocking aviation parts transport box to overcome the shortcomings of the prior art.
[0005] The purpose of this utility model is achieved through the following technical solution: a stackable interlocking aviation parts transport box, including a box body, with pads fixed at the four corners of the bottom of the box body, and a locking device provided on the side wall of the box body. The locking device is used to lock the stacked box bodies. The locking device includes a lock hole, a top rod, a locking block, and a lifting structure. The pads extend to the outer side of the side wall of the box body, and the pads located on the outer side of the side wall are used to open the lock hole. The top rod is slidably installed on the side wall of the box body, and the top rod is coaxial with the lock hole. The locking block consists of two blocks that are hinged to the top of the top rod in a figure-eight shape. The larger end of the figure-eight shape faces the top of the box body. An elongated oval through hole is opened on the locking block, and the side of the figure-eight shape corresponding to the elongated oval through hole extends from the elongated oval through hole. A fixed rod is fixed on the side wall of the box body near the top, and the fixed rod is slidably installed in the elongated oval through hole. The lifting structure is installed on the side wall of the box body and is used to engage the locking block into the lock hole.
[0006] Preferably, the lifting structure includes a lead screw, a connecting rod, a threaded sleeve, a worm gear, and a worm. The lifting rod and the lead screw are rotatably connected through the connecting rod. The rotating shafts at both ends of the connecting rod are parallel to the fixed rod. The threaded sleeve is screwed onto the lead screw. The worm gear is fixed in the middle of the threaded sleeve, and the worm gear and the threaded sleeve are coaxial. The threaded sleeve is rotatably mounted on the side wall of the housing body through a bearing seat. A portal frame is fixed above the worm gear. The portal frame is used to rotatably mount the worm, and the rotatably mounted worm meshes with the worm gear.
[0007] Preferably, the lifting structure includes a connecting rod, a nut, and a bolt. The connecting rod is used to rotatably connect the nut to the lifting rod. The nut is screwed onto the bolt, and the bolt is rotatably mounted on the side wall of the box body below the lifting rod.
[0008] Preferably, positioning posts are fixed at the four corners of the top of the box body, and guide holes are provided on the pads located on the inner side of the side wall, the guide holes being used to accommodate the positioning posts.
[0009] Preferably, the top surface of the positioning post is a spherical surface.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] When the top rod moves upward, the locking block is V-shaped. With the cooperation of the fixed rod and the elongated through hole, the large end of the V-shape further expands, thus contacting the inner wall of the locking hole and locking the upper box body. This prevents the upper transport box from sliding and improves the safety of stacked transport. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0014] Figure 3 for Figure 2 A magnified view of a portion of point B in the middle;
[0015] Figure 4 for Figure 1 A magnified view of a portion of point C in the middle;
[0016] In the diagram, 1-box body, 2-pad block, 3-locking hole, 4-top rod, 5-locking block, 6-oblong through hole, 7-fixed rod, 8-lead screw, 9-connecting rod, 10-threaded sleeve, 11-worm gear, 12-worm, 13-bearing seat, 14-gate frame, 15-connecting rod, 16-nut, 17-bolt, 18-positioning pin. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] like Figure 1-4 As shown, a stackable interlocking aviation parts transport box includes a box body 1. Pads 2 are fixed to the four corners of the bottom of the box body 1. Locking components are provided on the side walls of the box body 1 to lock the stacked box bodies 1. The locking components include lock holes 3, top rods 4, locking blocks 5, and a lifting structure. The pads 2 extend to the outer side walls of the box body 1, and the pads 2 located on the outer side walls are used to open the lock holes 3. The top rods 4 are slidably mounted on the side walls of the box body 1, and the top rods 4 are coaxial with the lock holes 3. The locking blocks 5 consist of two blocks hinged in a V-shape to the top of the top rods 4, with the larger end of the V-shape facing the top of the box body 1. An elongated oval through hole 6 is provided on the box body 1. The elongated oval through hole 6 extends to the side corresponding to the figure-eight shape. A fixed rod 7 is fixed on the side wall near the top of the box body 1. The fixed rod 7 is slidably installed in the elongated oval through hole 6. The lifting structure is installed on the side wall of the box body 1. The lifting structure is used to lock the locking block 5 into the locking hole 3. When the lifting rod 4 moves upward, since the locking block 5 is in the figure-eight shape, the large end of the figure-eight shape further expands under the cooperation of the fixed rod 7 and the elongated oval through hole 6, thereby contacting the inner wall of the locking hole 3 and locking the upper box body 1, preventing the upper transport box from sliding and improving the safety of stacking and transporting.
[0024] In this embodiment, as Figure 2 and 4 As shown, the first type of lifting structure includes a lead screw 8, a connecting rod 9, a threaded sleeve 10, a worm gear 11, and a worm 12. The lifting rod 4 is rotatably connected to the lead screw 8 via the connecting rod 9. The rotating shafts at both ends of the connecting rod 9 are parallel to the fixed rod 7. The threaded sleeve 10 is screwed onto the lead screw 8. The worm gear 11 is fixed in the middle of the threaded sleeve 10, and the worm gear 11 and the threaded sleeve 10 are coaxial. The threaded sleeve 10 is rotatably mounted on the side wall of the housing body 1 via a bearing seat 13. A portal frame 14 is fixed above the worm gear 11. The portal frame 14 is used to rotatably mount the worm 12, and the rotatably mounted worm 12 meshes with the worm gear 11. The first lifting structure has a self-locking capability through the worm gear 11 and worm 12, but the structure is relatively complex and the production cost is not advantageous. The second lifting structure includes a connecting rod 15, a nut 16 and a bolt 17. The connecting rod 15 is used to rotatably connect the nut 16 to the lifting rod 4. The nut 16 is screwed onto the bolt 17. The bolt 17 is rotatably installed on the side wall of the box body 1 below the lifting rod 4 (a bearing is embedded in the side wall, and the end of the bolt away from the head is tightly fitted onto the inner ring of the bearing). This lifting structure is simple and has a large production cost advantage, but it does not have a self-locking capability and is not suitable for use in long-term vibration transportation.
[0025] In this embodiment, as Figure 1 , 2As shown in Figure 4, positioning posts 18 are fixed at the four corners of the top of the box body 1. Guide holes are provided on the pad 2 located on the inner side wall. The guide holes are used to accommodate the positioning posts 18. Before stacking, the locking block 5 is lowered below the top of the box. When stacking, the upper box body 1 can be accurately installed in place with the cooperation of the positioning posts 18 and the guide holes so that the locking block 5 can enter the locking hole 3. The top surface of the positioning post 18 is a spherical surface. The spherical surface is used for guidance to facilitate the positioning post 18 to quickly enter the guide hole.
[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A stackable interlocking aviation parts transport box, comprising a box body (1), wherein pads (2) are fixed at the four bottom corners of the box body (1), and locking components are provided on the side walls of the box body (1) for locking the stacked box bodies (1), characterized in that: The lock includes a lock hole (3), a top rod (4), a lock block (5), and a lifting structure. The pad (2) extends to the outer side wall of the box body (1). The pad (2) located on the outer side wall is used to open the lock hole (3). The top rod (4) is slidably mounted on the side wall of the box body (1). The top rod (4) is coaxial with the lock hole (3). The lock block (5) consists of two blocks that are hinged in a figure-eight shape to the top of the top rod (4). The large end faces the top of the box body (1). The locking block (5) has an elongated through hole (6). The elongated through hole (6) extends from the side corresponding to the figure-eight shape. A fixed rod (7) is fixed on the side wall of the box body (1) near the top. The fixed rod (7) is slidably installed in the elongated through hole (6). The lifting structure is installed on the side wall of the box body (1). The lifting structure is used to insert the locking block (5) into the locking hole (3).
2. A stack interlocking aerospace parts shipping box as defined in claim 1, wherein: The lifting structure includes a lead screw (8), a connecting rod (9), a threaded sleeve (10), a worm gear (11), and a worm (12). The lifting rod (4) and the lead screw (8) are rotatably connected through the connecting rod (9). The rotating shafts at both ends of the connecting rod (9) are parallel to the fixed rod (7). The threaded sleeve (10) is screwed onto the lead screw (8). The worm gear (11) is fixed in the middle of the threaded sleeve (10), and the worm gear (11) and the threaded sleeve (10) are coaxial. The threaded sleeve (10) is rotatably mounted on the side wall of the housing body (1) through a bearing seat (13). A portal frame (14) is fixed above the worm gear (11). The portal frame (14) is used to rotatably mount the worm (12). The rotatably mounted worm (12) meshes with the worm gear (11).
3. A stack interlocking aerospace parts shipping box as defined in claim 1 wherein: The lifting structure includes a connecting rod (15), a nut (16), and a bolt (17). The connecting rod (15) is used to rotatably connect the nut (16) to the top rod (4). The nut (16) is screwed onto the bolt (17). The bolt (17) is rotatably installed on the side wall of the box body (1) below the top rod (4).
4. A stack interlocking aerospace parts shipping box as defined in claim 1 wherein: The top four corners of the box body (1) are fixed with positioning posts (18), and the pad (2) located on the inner side of the side wall is provided with guide holes, which are used to accommodate the positioning posts (18).
5. A stack interlocking aerospace parts shipping box as defined in claim 4, wherein: The top surface of the positioning post (18) is a spherical surface.
Citation Information
Patent Citations
Aircraft transportation container
CN2302228Y