Aircraft package palletized transport connection structure

Abstract

The present application relates to a kind of aircraft package box stacking transport connecting structure, including two first connecting parts, for being installed between four package boxes in two rows and two columns stacking, each first connecting part includes four L-shaped fasteners, for being fixedly installed on four package boxes respectively, two type fasteners in the same row are symmetrically arranged and are connected laterally by a locking part, the L-shaped fasteners of upper and lower rows are connected longitudinally by the locking part, the locking part includes barrel, lock shaft, lock head and handle part, lock shaft is rotatably arranged in barrel, lock head is arranged at both ends of lock shaft, handle part is connected with lock shaft, by operating handle part, lock shaft can drive lock head to rotate relative to barrel, handle part is provided with remote spring anti-loosening structure, the connecting structure can realize the vertical direction and lateral locking of the four package boxes stacked and placed, it is simple in structure, connection is firm, and it is easy to operate, and handle part also has spring anti-loosening structure, prevent handle rotating in transportation.

Description

Technical Field

[0001] This invention relates to the field of aircraft packaging and transportation technology, and in particular to a stacking and transportation connection structure for aircraft packaging boxes. Background Technology

[0002] Traditionally, the transportation of large aircraft packaging boxes typically employs a single-layer, side-by-side transport method. Under this transportation requirement, only the lateral connection and securing of the packaging boxes need to be considered. A prior patent application, CN116729768A, entitled "A Side-by-Side Connection Structure for Aircraft Packaging Boxes," discloses a similar structure. This structure includes two connecting seats and two connecting members. The two connecting seats are respectively installed on two aircraft packaging boxes, and the two connecting members are rotatably connected to the two connecting member seats. Each connecting member has a stud section, and the stud sections of the two connecting members are spaced apart and opposite to each other. The opposite stud sections are connected by a threaded sleeve. By rotating the threaded sleeve, the distance between the opposite stud sections can be adjusted, achieving a secure side-by-side connection between the two aircraft packaging boxes. However, this structure requires manual rotation of the threaded sleeve, which is not only relatively inefficient but also increases the difficulty of operation due to the relatively small space between adjacent boxes.

[0003] Recently, a user has requested a transportation method that involves double-layer stacking (2×2) of packaging boxes. This method requires simultaneous consideration of lateral and vertical connections between the boxes, as well as their securing and fastening. However, the solution proposed in the aforementioned patent application (publication number CN116729768A) fails to address vertical connections and is difficult to implement, thus failing to meet the requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a stacking and transportation connection structure for aircraft packaging boxes to meet the requirements of stacking and transportation of aircraft packaging boxes.

[0005] To achieve the above objectives, the present invention provides a stacking and transport connection structure for aircraft packaging boxes, comprising:

[0006] Two first connecting parts are used for installation between four packaging boxes stacked in two rows and two columns. Each first connecting part includes four L-shaped fasteners for fixing to the four packaging boxes respectively. Each L-shaped fastener has an elongated hole on each of its two plates. The two L-shaped fasteners in the upper row are symmetrically spaced laterally and connected laterally by a locking part. The two L-shaped fasteners in the lower row are symmetrically spaced laterally and connected laterally by a locking part. The two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row are symmetrically spaced longitudinally. Among the two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row, the two L-shaped fasteners that are vertically opposite each other are connected longitudinally by a locking part.

[0007] The locking part includes:

[0008] A cylindrical body, open at both ends, with an arc-shaped slide rail located between the two ends, running circumferentially along the cylindrical body and penetrating one side of the cylindrical wall. Each end of the arc-shaped slide rail has a countersunk hole communicating with the arc-shaped slide rail.

[0009] A locking shaft is rotatably inserted into the cylinder, and the two ends of the locking shaft are provided with locking heads that match the shape of the elongated holes. Each locking head is used to be inserted into one of the elongated holes.

[0010] The handle includes a handle body, a handle sleeve, a compression spring, and a pressing part. One end of the handle body passes through the countersunk hole and is connected to the locking shaft. The handle sleeve and the compression spring are slidably fitted onto the handle body. The pressing part is located at the other end of the handle body. One end of the compression spring abuts against the handle sleeve, and the other end abuts against the pressing part. The dimension of the handle sleeve in the axial direction of the cylinder is greater than the width of the arc-shaped slide in the axial direction of the cylinder.

[0011] When the handle portion is engaged in the countersunk hole at one end of the arc-shaped slide, the lock head can pass through the elongated hole. When the handle sleeve moves away from the lock shaft, the handle portion can rotate along the arc-shaped slide to the countersunk hole at the other end of the arc-shaped slide, and the lock head is blocked by the elongated hole.

[0012] Optionally, the clamping part includes a clamping nut;

[0013] The other end of the handle is provided with an external thread, and the clamping nut is threadedly connected to the handle and clamps the compression spring.

[0014] Optionally, the clamping part further includes a washer, the washer being sleeved on the handle, and the diameter of the washer being larger than the diameter of the clamping nut, the clamping nut clamping the compression spring through the washer; or

[0015] The clamping part also includes a bushing, which is sleeved on the handle. The end of the handle facing the bushing has a stepped hole. The stepped hole is divided into two sections in the axial direction. The diameter of the stepped hole closer to the bushing is larger than the diameter of the stepped hole further away from the bushing. One end of the bushing is inserted into the stepped hole, and the other end has a radial flange. The compression spring is sleeved on the bushing, with one end inserted into the stepped hole and the other end abutting against the radial flange. The clamping nut abuts against the radial flange.

[0016] Optionally, the end of the handle facing the compression spring has a flange, and the compression spring abuts against the flange.

[0017] Optionally, a stop block is provided on the outer side of the cylinder, and when the stop block abuts against the L-shaped fastener, the lock head is inserted into the elongated hole and positioned in a lockable position.

[0018] Optionally, in an embodiment with a stop, for the locking part used for longitudinal connection, the stop is a radial annular protrusion, and the arc-shaped slide and countersunk hole are disposed on the outer periphery of the annular protrusion.

[0019] Optionally, the aircraft packaging box stacking and transportation connection structure further includes a plurality of second connecting parts for installation between two packaging boxes stacked in the same row, and located on opposite left and right sides of the two packaging boxes stacked in the same row, respectively, along with the first connecting part.

[0020] Each of the second connecting parts includes two L-shaped fasteners arranged symmetrically at longitudinal intervals. The L-shaped fasteners of the second connecting part have the same structure as the L-shaped fasteners of the first connecting part. The two L-shaped fasteners of the second connecting part are longitudinally connected by a locking part. The locking part of the second connecting part has the same structure as the locking part of the first connecting part.

[0021] Optionally, the aircraft packaging box stacking and transport connection structure also includes multiple tethering rings, which are disposed on the L-shaped fastener of the second connection part and / or on the outside of the packaging box.

[0022] Optionally, the aircraft packaging box stacking and transportation connection structure further includes multiple third connecting parts for installation between two side-by-side packaging boxes, and located on opposite upper and lower sides of the two side-by-side packaging boxes, respectively, as the first connecting part; each third connecting part includes two L-shaped fasteners arranged symmetrically at a horizontal interval, the L-shaped fasteners of the third connecting part having the same structure as the L-shaped fasteners of the first connecting part, and the two L-shaped fasteners of the third connecting part being laterally connected by a locking part, the locking part of the third connecting part having the same structure as the locking part of the first connecting part.

[0023] Optionally, the aircraft packaging box stacking and transport connection structure also includes multiple anti-collision blocks for placement between two adjacent packaging boxes.

[0024] Optionally, the central angle corresponding to the arc-shaped slide is 90°.

[0025] The above-described technical solution of the present invention has the following advantages:

[0026] The aircraft packaging box stacking and transportation connection structure provided by the present invention includes two first connecting parts for installation between four packaging boxes stacked in two rows and two columns. Each first connecting part includes four L-shaped fasteners for fixing to the four packaging boxes respectively. Each L-shaped fastener has an elongated hole on each of its two plates. The two L-shaped fasteners in the upper row are symmetrically arranged laterally and connected laterally by a locking part. The two L-shaped fasteners in the lower row are also symmetrically arranged laterally and connected laterally by a locking part. The two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row are symmetrically spaced longitudinally. The two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row are longitudinally connected by a locking part. The locking part includes a cylinder, a locking shaft, a locking head, and a handle. The locking shaft is rotatably inserted into the cylinder. The locking head is located at both ends of the locking shaft. The handle is connected to the locking shaft. By operating the handle, the locking shaft can drive the locking head to rotate relative to the cylinder. The handle is equipped with a remote spring anti-loosening structure. This connection structure can achieve vertical and horizontal locking and fixing of four stacked packaging boxes through the two first connecting parts. The structure is simple, the connection is firm, and the operation is convenient. Moreover, the spring anti-loosening structure of the handle can also prevent the handle from rotating due to the movement of the handle sleeve during transportation. Attached Figure Description

[0027] The accompanying drawings are provided for illustrative purposes only, and the proportions and quantities of the components in the drawings may not be consistent with the actual product.

[0028] Figure 1 This is a schematic diagram of a stacking and transport connection structure for fixing aircraft packaging boxes according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 Orthographic view diagram;

[0030] Figure 3 yes Figure 2 Enlarged schematic diagram of part A;

[0031] Figure 4 yes Figure 3 A schematic diagram of the internal structure of the first connecting part after being cut open by the stacking surface passing through the central axis of the four locking parts;

[0032] Figure 5 yes Figure 3 A schematic diagram of the first connecting part in the middle;

[0033] Figure 6 This is a schematic diagram of the non-locking state structure of the locking part in an embodiment of the present invention;

[0034] Figure 7 yes Figure 6 Schematic diagram of the locking state of the middle locking part;

[0035] Figure 8 This is a schematic diagram of another locking state structure of the locking part in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of another locking part in a locking state in an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the second connecting part of an aircraft packaging box stacking and transportation connection structure according to an embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram of the third connection part of an aircraft packaging box stacking and transportation connection structure according to an embodiment of the present invention.

[0039] In the picture:

[0040] 1: Stacking surface;

[0041] 2: Packaging box;

[0042] 21: Accommodation space;

[0043] 3: First connecting part;

[0044] 4: L-shaped fastener;

[0045] 41: Elongated hole;

[0046] 5: Locking part;

[0047] 51: Cylinder body;

[0048] 511: Curved slide;

[0049] 512: Countersunk hole;

[0050] 513: Stop;

[0051] 52: Locking shaft;

[0052] 53: Lock;

[0053] 54: handle part;

[0054] 541: Handle;

[0055] 542: Handle sleeve;

[0056] 5421: Flange;

[0057] 543: Compression spring;

[0058] 544: Pressing part;

[0059] 5441: Tighten the nut;

[0060] 5442: Gasket;

[0061] 5443: Bushing;

[0062] 6: Second connecting part;

[0063] 7: Third connecting part;

[0064] 8: tethering ring;

[0065] 9: Mooring rope. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0067] like Figures 1-3 As shown, the aircraft packaging box stacking and transportation connection structure provided in this embodiment of the invention is used to fix four packaging boxes 2 stacked in two rows and two columns. During transportation, the four packaging boxes 2 are stacked on the stacking surface 1. The stacking surface 1 can be the bottom surface of a train car, the bottom surface of a freight car, or the bottom surface of a ship, etc., and is not limited here.

[0068] The aircraft packaging box stacking and transportation connection structure includes two first connecting parts 3, which are used to install between four packaging boxes 2 stacked in two rows and two columns. The two first connecting parts 3 are spaced apart along the length of the packaging box 2 and are located near the end of the packaging box 2, so as to facilitate the operation of the first connecting parts 3.

[0069] See Figures 2-4 As shown, each first connecting part 3 includes four L-shaped fasteners 4, which are used to fix and install on the four packaging boxes 2 respectively.

[0070] See Figures 3-5As shown, each L-shaped fastener 4 has an elongated hole 41 on each of its two plates. The two L-shaped fasteners 4 in the upper row are symmetrically spaced laterally and connected laterally by a locking part 5. Similarly, the two L-shaped fasteners 4 in the lower row are also symmetrically spaced laterally and connected laterally by a locking part 5. The two L-shaped fasteners 4 in the upper row and the two L-shaped fasteners 4 in the lower row are symmetrically spaced longitudinally, and the two L-shaped fasteners 4 that are vertically opposite each other in the upper and lower rows are connected longitudinally by a locking part 5.

[0071] In one embodiment of this example, see [link to example]. Figure 4 As shown, a receiving space 21 for accommodating the lock head 53 is provided on the packaging box 2 at a position corresponding to the elongated hole 41 of the L-shaped fastener 4. In one example, the receiving space 21 can be formed by a relief groove structure. Of course, in some other embodiments, other structures can also be used to accommodate the lock head 53. For example, the plate of the L-shaped fastener 4 has a certain thickness, and a groove is provided on the hole wall of the elongated hole 41 as the receiving space for the lock head 53.

[0072] It should be noted that the locking part 5 used for longitudinal connection and the locking part 5 used for transverse connection have the same functional structure and can be completely identical. However, those skilled in the art should understand that the dimensions of the locking parts in different directions can be adaptively adjusted according to the different longitudinal and transverse spacing between the packaging boxes 2. For example, Figure 7 and Figure 8 The locking part shown.

[0073] See Figure 4 , Figure 6 and Figure 7 As shown, the locking part 5 includes a cylindrical body 51, a locking shaft 52, locking heads 53, and a handle part 54. The cylindrical body 51 is open at both ends, and an arc-shaped slide 511 is provided on the cylindrical body 51 at a position between the two ends, running circumferentially along the cylindrical body 51 and penetrating one side of the cylindrical body 51. Each end of the arc-shaped slide 511 has a countersunk hole 512 communicating with the arc-shaped slide 511, and the two countersunk holes 512 serve as limiting points for fixing the handle part 54. The locking shaft 52 is rotatably inserted into the cylindrical body 51, and each end of the locking shaft 52 has a locking head 53 that matches the shape of an elongated hole 41, with each locking head 53 being inserted into one of the elongated holes 41.

[0074] The handle portion 54 includes a handle body 541, a handle sleeve 542, a compression spring 543, and a clamping part 544. One end of the handle body 541 passes through a countersunk hole 512 and is connected to the locking shaft 52. The handle sleeve 542 and the compression spring 543 are slidably fitted onto the handle body 541. The clamping part 544 is located at the other end of the handle body 541. One end of the compression spring 543 abuts against the handle sleeve 542, and the other end abuts against the clamping part 544. The axial dimension of the handle sleeve 542 in the cylindrical body 51 is larger than the axial width of the arc-shaped slide rail 511 in the cylindrical body 51. Under normal conditions, the handle sleeve 542 can be inserted into the countersunk hole 512, but cannot enter the arc-shaped slide rail 511. When it is necessary to move the handle... When handle 54 rotates to the countersunk hole 512 at the other end of the arc-shaped slide 511, handle sleeve 542 is pulled away from locking shaft 52 along handle 541. Compression spring 543 is compressed by handle sleeve 542, and handle sleeve 542 is completely outside the cylinder 51. At this time, handle 541 can slide in arc-shaped slide 511 until another countersunk hole 512. Handle sleeve 542 is released, and under the action of compression spring 543, handle sleeve 542 returns to its original position and is inserted into countersunk hole 512. Compression spring 543 provides clamping force to handle sleeve 542, preventing handle sleeve 542 from moving or rotating during transportation, thus restricting the rotation of handle 54 again. During the rotation of handle 54, locking shaft 52 drives lock head 53 to rotate with handle 54. Lock head 53 is elongated. After rotating a certain angle, lock head 53 will be blocked by elongated hole 41, and the two L-shaped fasteners 4 connected by locking part 5 achieve position locking. Similarly, rotating the handle 54 in the opposite direction aligns the locking head 53 with the elongated hole 41, allowing the locking head 53 to disengage from the elongated hole 41 and releasing the locking of the two L-shaped fasteners 4 connected by the locking part 5. This locking part 5 is not only simple in structure, firmly connected, and easy to operate, but its anti-loosening structure on the handle 54 also prevents the handle from shifting during transportation, thus preventing locking failure.

[0075] The aircraft packaging box stacking and transportation connection structure of this embodiment can achieve vertical and horizontal locking and fixing of four stacked packaging boxes through two first connecting parts. The structure is simple, the connection is firm, and the operation is convenient. Moreover, the structure of its handle part 54 can also prevent the handle from rotating due to the movement of the handle sleeve during transportation, which could lead to locking failure.

[0076] In order to facilitate pulling the handle sleeve 542 and to better compress the compression spring 543, in some embodiments, the end of the handle sleeve 542 facing the compression spring 543 has a flange 5421, and the compression spring 543 abuts against the flange 5421.

[0077] For easy adjustment of the clamping force and restoring force provided by the compression spring 543, see [link / reference]. Figures 6-8As shown, in some embodiments, the clamping part 544 is a clamping nut 5441. The other end of the handle 541 is provided with an external thread, and the clamping nut 5441 is threadedly connected to the handle 541 and clamps the compression spring 543. The clamping force and restoring force provided by the compression spring 543 can be easily adjusted by rotating the clamping nut 5441.

[0078] To further improve the clamping effect of the clamping nut 5441 on the compression spring 543 and to prevent the clamping nut 5441 from affecting the compression spring 543 during rotation (e.g., jamming the compression spring, causing the compression spring to twist), in some embodiments, the clamping part 544 includes a clamping nut 5441 and a washer 5442. The washer 5442 is sleeved on the handle 541, and the diameter of the washer 5442 is larger than the diameter of the clamping nut 5441. The clamping nut 5441 clamps the compression spring 543 through the washer 5442.

[0079] To further improve the clamping effect of the clamping nut 5441 on the compression spring 543, and to prevent the clamping nut 5441 from affecting the compression spring 543 during rotation (e.g., jamming the compression spring, causing the compression spring to twist), in some other embodiments, see... Figure 9 As shown, the clamping part 544 includes a clamping nut 5441 and a bushing 5443. The bushing 5443 is sleeved on the handle 541. The handle 542 has a stepped hole (not shown in the figure) at one end facing the bushing 5443. The stepped hole is divided into two sections in the axial direction. The diameter of the stepped hole near the bushing 5443 is larger than the diameter of the stepped hole away from the bushing 5443. One end of the bushing 5443 is inserted into the stepped hole, and the other end has a radial flange. The compression spring 543 is sleeved on the bushing 5443. One end is inserted into the stepped hole, and the other end abuts against the radial flange. The clamping nut 5441 abuts against the radial flange. Pulling the handle 542 causes the handle 542 to move away from the locking shaft 52 along the bushing 5443, compressing the compression spring 543. After the handle part 54 moves into place, the handle 542 is released and reset.

[0080] To facilitate faster and more convenient positioning of the locking part 5, in some embodiments, see [reference needed]. Figures 6-8 As shown, a stop block 513 is provided on the outer side of the cylinder 51. When the stop block 513 abuts against the L-shaped fixing member 4, the locking head 53 is inserted into the elongated hole 41 and positioned in the set lockable position. That is, at this time, the locking heads 53 at both ends of the locking shaft 52 can rotate with the locking shaft 52, thereby adjusting the direction of the locking head 53, which is blocked by the elongated hole 41. This structure can quickly achieve the positioning of the locking part and achieve rapid locking, making the operation convenient and quick. In one example, see Figure 6 and Figure 7As shown, the stop 513 of the locking part 5 is plate-shaped. The gap between the upper and lower packaging boxes 2 can be achieved by a pad or a raised platform on the packaging box 2, which is not limited here. In another example, see Figure 8 As shown, the stop 513 of the locking part 5 is a radial annular protrusion. In another example, the stop 513 for lateral connection is plate-shaped, and the stop 513 for longitudinal connection is an annular protrusion. The arc-shaped slide 511 and the countersunk holes 512 located at both ends of the arc-shaped slide 511 are provided on the outer periphery of the annular protrusion. With this arrangement, the annular protrusion can also play a supporting role. The upper and lower packaging boxes 2 respectively abut against the two ends of the annular protrusion, ensuring that there is a certain gap between the upper and lower packaging boxes 2, so that the handle part 54 can rotate without being affected.

[0081] In a preferred embodiment, the central angle corresponding to the arc-shaped slide 511 is 90°, that is, the handle portion 54 rotates from the countersunk hole 512 at one end of the arc-shaped slide 511 to the countersunk hole 512 at the other end, and the lock head 53 rotates 90°.

[0082] To further improve the securing effect of packaging box 2, see Figure 1 and Figure 2 As shown, based on any of the above embodiments, a further improvement is made to the aircraft packaging box stacking and transportation connection structure, which further includes four second connecting parts 6 for installation between two packaging boxes 2 stacked in the same row, and located on opposite left and right sides of the two packaging boxes 2 in the same row, respectively, along with the first connecting part 3. Specifically, see... Figure 1 and Figure 2 As shown, two first connecting parts 3 are located between four packaging boxes 2 and are respectively installed near the end of the packaging box 2. Two second connecting parts 6 are installed between two packaging boxes 2 stacked in the same column on the left side and are respectively installed near the end of the packaging box 2. The other two second connecting parts 6 are installed between two packaging boxes 2 stacked in the same column on the right side and are respectively installed near the end of the packaging box 2.

[0083] Each second connecting part 6 includes two L-shaped fasteners 4 arranged symmetrically at longitudinal intervals. The L-shaped fasteners 4 of the second connecting part 6 have the same structure as the L-shaped fasteners 4 of the first connecting part 3. The two L-shaped fasteners 4 of the second connecting part 6 are longitudinally connected by a locking part 5. The locking part of the second connecting part 6 has the same structure as the locking part of the first connecting part 3.

[0084] It should be noted that in some other embodiments, the second connecting part 6 may be of other quantities, for example, on the left and right sides. Figure 2(Based on the direction in the middle) A second connecting part 6 is set on each side and placed in the middle position of the length direction of the packaging box 2; or three second connecting parts 6 are set on each side, and the three second connecting parts 6 are evenly spaced along the length direction of the packaging box 2. The specific number can be set as needed and is not limited here.

[0085] To further improve the securing effect of packaging box 2, see Figure 1 and Figure 2 As shown, based on any of the above embodiments, a further improvement is made to the aircraft packaging box stacking and transportation connection structure, which further includes four third connecting parts 7 for installation between two side-by-side packaging boxes 2, and located on opposite upper and lower sides of the two side-by-side packaging boxes 2, respectively, along with the first connecting part 3. Specifically, see... Figure 1 and Figure 2 As shown, two first connecting parts 3 are located between four packaging boxes 2 and are respectively installed near the end of the packaging box 2. Two third connecting parts 7 are installed between two packaging boxes 2 on the upper side and are respectively installed near the end of the packaging box 2. The other two third connecting parts 7 are installed between two packaging boxes 2 on the lower side and are respectively installed near the end of the packaging box 2.

[0086] Each third connecting part 7 includes two L-shaped fasteners 4 arranged symmetrically at a horizontal interval. The L-shaped fasteners 4 of the third connecting part 7 have the same structure as the L-shaped fasteners 4 of the first connecting part 3. The two L-shaped fasteners 4 of the third connecting part 7 are laterally connected by a locking part 5. The locking part 5 of the third connecting part 7 has the same structure as the locking part 5 of the first connecting part 3.

[0087] It should be noted that in some other embodiments, the third connecting part 7 may be of other quantities, for example, on the upper and lower sides. Figure 2 (Based on the direction in the middle) A third connecting part 7 is set on each side and placed in the middle position of the length direction of the packaging box 2; or three third connecting parts 7 are set on each side, and the three third connecting parts 7 are evenly spaced along the length direction of the packaging box 2. The specific number can be set as needed and is not limited here.

[0088] It is also worth noting that the L-shaped fasteners 4 in the first connecting part 3, the second connecting part 6, and the third connecting part 7 can have the same structure, or they can be appropriately modified according to their positions. For example, see [reference needed]. Figure 2 and Figure 3 As shown, depending on the shape variations at different locations on the packaging box, some L-shaped fasteners 4 can be partially bent to fit snugly onto the packaging box 2; for example, see... Figure 1 and Figure 2 As shown, due to different installation positions, the side of the L-shaped fastener 4 that does not need to be connected to the locking part 5 may or may not have an elongated hole 41.

[0089] To further improve the securing effect of packaging box 2, see Figure 1 and Figure 2 As shown, based on any of the above embodiments, a further improvement is made to the aircraft packaging box stacking and transportation connection structure, which further includes multiple tethering rings 8 for connecting tethering ropes 9. One end of the tethering rope 9 is connected to the tethering ring 8, and the other end is connected to the stacking surface 1 or other parts of the transport vehicle, further reinforcing the fixation between the packaging box 2 and the transport vehicle. In this embodiment, the tethering rings 8 can be set on the L-shaped fixing member 4 of the second connecting part 6, or they can be set on the outside of the packaging box 2, or some of the tethering rings 8 can be set on the L-shaped fixing member 4 of the second connecting part 6, and some of the tethering rings 8 can be set on the outside of the packaging box 2.

[0090] In some examples, L-shaped plates are provided at the edges or corners of the packaging box 2, and the tethering ring 8 is set on the L-shaped plate, that is, the tethering ring 8 is set on the outside of the packaging box 2 through the L-shaped plate. Preferably, the L-shaped plate adopts the same structure as the L-shaped fastener 4, so that when stacking packaging boxes, the position of the packaging boxes does not need to be considered, and they can be stacked arbitrarily.

[0091] It is worth noting that the L-shaped fastener 4 can be fixedly installed on the packaging box 2 during the packaging box forming process, or it can be installed on the packaging box 2 with screws after the packaging box is made. There is no limitation on this.

[0092] In some embodiments, a bumper block (not shown in the figure) is provided between two adjacent packaging boxes, and the shape of the bumper block is not limited. Preferably, the material used is rubber, foam plastic, or similar materials.

[0093] In some modified embodiments of the present invention, four, six or more second connecting parts 6 may be used to be set between two packaging boxes 2 stacked in a single row, in order to fix the two packaging boxes 2 stacked in a single row.

[0094] In some modified embodiments of the present invention, four, six or more third connecting parts 7 may be used to fix two side-by-side packaging boxes 2 between them.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that not every embodiment contains only one independent technical solution, and in the absence of conflict between solutions, the various technical features mentioned in each embodiment can be combined in any way to form other implementation methods that can be understood by those skilled in the art.

[0096] Furthermore, without departing from the scope of the present invention, modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some of the technical features, shall not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aircraft package palletized transport connection structure, characterized by, include: Two first connecting parts are used for installation between four boxes stacked in two rows and two columns. Each of the first connecting parts includes four L-shaped fasteners for fixing and mounting on the four packaging boxes respectively. Each L-shaped fastener has an elongated hole on each of its two plates. The two L-shaped fasteners in the upper row are symmetrically spaced laterally and connected laterally by a locking part. The two L-shaped fasteners in the lower row are symmetrically spaced laterally and connected laterally by a locking part. The two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row are symmetrically spaced longitudinally. Among the two L-shaped fasteners in the upper row and the two L-shaped fasteners in the lower row, the two L-shaped fasteners that are vertically opposite each other are connected longitudinally by a locking part. The locking part includes: A cylindrical body, open at both ends, with an arc-shaped slide rail located between the two ends, running circumferentially along the cylindrical body and penetrating one side of the cylindrical wall. Each end of the arc-shaped slide rail has a countersunk hole communicating with the arc-shaped slide rail. A locking shaft is rotatably inserted into the cylinder, and the two ends of the locking shaft are provided with locking heads that match the shape of the elongated holes. Each locking head is used to be inserted into one of the elongated holes. The handle includes a handle body, a handle sleeve, a compression spring, and a pressing part. One end of the handle body passes through the countersunk hole and is connected to the locking shaft. The handle sleeve and the compression spring are slidably fitted onto the handle body. The pressing part is located at the other end of the handle body. One end of the compression spring abuts against the handle sleeve, and the other end abuts against the pressing part. The dimension of the handle sleeve in the axial direction of the cylinder is greater than the width of the arc-shaped slide in the axial direction of the cylinder. When the handle portion is engaged in the countersunk hole at one end of the arc-shaped slide, the lock head can pass through the elongated hole. When the handle sleeve moves away from the lock shaft, the handle portion can rotate along the arc-shaped slide to the countersunk hole at the other end of the arc-shaped slide, and the lock head is blocked by the elongated hole. The clamping part includes a clamping nut; The other end of the handle is provided with an external thread, and the clamping nut is threadedly connected to the handle and clamps the compression spring.

2. The aircraft packaging box stacking and transportation connection structure according to claim 1, characterized in that: The clamping part further includes a washer, which is sleeved on the handle and has a diameter larger than that of the clamping nut. The clamping nut clamps the compression spring through the washer; or The clamping part also includes a bushing, which is sleeved on the handle. The end of the handle facing the bushing has a stepped hole. The stepped hole is divided into two sections in the axial direction. The diameter of the stepped hole closer to the bushing is larger than the diameter of the stepped hole further away from the bushing. One end of the bushing is inserted into the stepped hole, and the other end has a radial flange. The compression spring is sleeved on the bushing, with one end inserted into the stepped hole and the other end abutting against the radial flange. The clamping nut abuts against the radial flange.

3. The aircraft package pallet stacking and transport connection structure of Claim 1, wherein: The handle sleeve has a flange at one end facing the compression spring, and the compression spring abuts against the flange.

4. The aircraft package pallet stacking and transport connection structure of Claim 1, wherein: The outer side of the barrel is provided with a stopper, and when the stopper abuts against the L-shaped fixing member, the lock head is inserted into the long hole and located at the lockable position.

5. The aircraft package pallet stacking and transport connection structure of Claim 4, wherein: For the locking part for longitudinal connection, the stopper is a radial annular protrusion, and the arc-shaped slide and the counterbore are arranged on the outer peripheral side of the annular protrusion.

6. The aircraft package box stacking and transporting connecting structure according to claim 1, characterized in that: a plurality of second connecting parts are further included, and are arranged between two package boxes in the same column, and are respectively arranged on the left and right sides of the two package boxes in the same column; each second connecting part includes two L-shaped fixing members arranged symmetrically and longitudinally, the L-shaped fixing members of the second connecting part are the same as those of the first connecting part, and the two L-shaped fixing members of the second connecting part are connected longitudinally through a locking part, and the locking part of the second connecting part is the same as that of the first connecting part.

7. The aircraft package pallet stacking and transport connection structure of Claim 6, wherein: a plurality of tethering rings are further included, and are arranged on the L-shaped fixing members of the second connecting part and / or the outer side of the package box.

8. The aircraft package box stacking and transporting connecting structure according to claim 1, 6 or 7, characterized in that: a plurality of third connecting parts are further included, and are arranged between two package boxes in parallel, and are respectively arranged on the upper and lower sides of the two package boxes in parallel; each third connecting part includes two L-shaped fixing members arranged symmetrically and transversely, the L-shaped fixing members of the third connecting part are the same as those of the first connecting part, and the two L-shaped fixing members of the third connecting part are connected transversely through a locking part, and the locking part of the third connecting part is the same as that of the first connecting part.

9. The aircraft package pallet stacking and transport connection structure of Claim 1, wherein: The central angle of the arc-shaped slide is 90°.

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