Aircraft unit load device restraint
By designing an aviation container unit movement limiting device that includes a base, lock body, support and torsion spring, the problem of balancing reliability and operational efficiency in existing movement limiting devices is solved, and the rapid and reliable movement limiting and loading/unloading of container units is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN FEIBAO DEV CO
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-09
AI Technical Summary
Existing aircraft container unit movement limiting devices cannot simultaneously meet the balance between reliability and operational efficiency. Traditional movement limiting devices suffer from problems such as high energy consumption, high equipment costs, or cumbersome operation in the front and rear movement limiting links.
Design an aviation container unit movement limiting device including a base, lock body, support, torsion spring one and torsion spring two. By manually switching the state of the lock body and support, the front-to-back and vertical movement of the container unit can be limited. The elastic effect of the torsion spring can be used to achieve quick locking and unlocking of movement restriction.
It enables reliable locking and rapid loading and unloading of container units, saving energy and improving work efficiency.
Smart Images
Figure CN224335836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air cargo movement restriction technology, and in particular to an air cargo container movement restriction device. Background Technology
[0002] In the modern air transport sector, cargo transport systems consist of a series of independent yet interconnected devices, including transmission, guidance, and motion limiting equipment. Among these, motion limiting equipment plays a crucial role in reliably limiting the movement of the container unit in all directions—forward, backward, left, right, and upward. With the advancement of standardization in aviation container units, motion limiting requirements have become clearly defined industry standards. The current mainstream practice is to install standard-compliant motion limiting devices on the floor of cargo aircraft to effectively limit the movement of the container unit.
[0003] However, existing technologies still present pressing technical challenges. In the front and rear movement limiting stages, it is crucial to ensure the reliability of movement limiting to prevent displacement of the container unit during transportation, while simultaneously ensuring smooth transfer of pallets during loading and unloading. These two requirements are often difficult to balance in practice, and traditional movement limiting devices struggle to meet both simultaneously. Furthermore, while complex automated movement limiting mechanisms can achieve the limiting function to some extent, they suffer from high energy consumption and equipment costs; conversely, simple manual movement limiting methods are cumbersome and inefficient. Therefore, a new aviation container movement limiting device is needed to address these issues.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a movement limiting device for aviation container units to solve the above-mentioned problems.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an aviation container unit movement limiting device, comprising:
[0007] Includes base, lock body, support, torsion spring one, shaft one, torsion spring two, and shaft two;
[0008] Both shaft one and shaft two are fixedly installed on the base. The lock body is rotatably installed on shaft two. The support is rotatably installed on shaft one. The torsion spring is sleeved on shaft one. The torsion spring two is sleeved on shaft two.
[0009] A further feature of this invention is that one end of the torsion spring is fixedly connected to the base, and the other end of the torsion spring presses against the support.
[0010] A further feature of this invention is that one end of the second torsion spring is fixedly connected to the base, and the other end of the second torsion spring presses against the lock body.
[0011] A further feature of this invention is that the top of the base contacts a container unit.
[0012] A further feature of this invention is that the inner side of the lock body abuts against the container unit.
[0013] A further feature of this invention is that the lock body is provided with a slot that cooperates with the support.
[0014] A further feature of this invention is that the support is provided with a locking platform that cooperates with the lock body.
[0015] A further feature of this invention is that the lock body includes a self-standing part and a locking tongue, both of which abut against the container unit.
[0016] The beneficial effects of this utility model are:
[0017] This invention can restrict the forward, backward, and vertical movement of the container unit. In addition, to facilitate the loading of the container unit, the movement restriction mechanism is set to a manual quick-switching mode. When the container unit is being loaded, it can ensure that the container unit passes through smoothly. After the container unit is installed in place, it can be quickly switched manually to achieve reliable locking of the container unit. This can save energy and improve work efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is an isometric view of the limited movement working state of an aviation container unit limited movement device proposed in this utility model.
[0020] Figure 2 This is an isometric view of the working state of the unrestricted movement device of an aviation container unit proposed in this utility model.
[0021] Figure 3 This is an exploded view of an aviation container unit movement limiting device provided by this utility model.
[0022] Figure 4 This is a schematic diagram of the loading process of an aviation container unit limiting device provided by this utility model.
[0023] Figure 5This is a schematic diagram of the movement of an aviation container unit in position, provided by this utility model.
[0024] Figure 6 This is a schematic diagram illustrating the operation process of an aviation container unit motion limiting device provided by this utility model.
[0025] Figure 7 An upright schematic diagram of an aviation container unit movement limiting device provided by this utility model.
[0026] Figure 8 A schematic diagram of a container unit movement limiting device for aviation container units provided by this utility model.
[0027] Figure 9 This utility model provides a schematic diagram of the front and rear movement limitation device for an aviation container unit.
[0028] Figure 10 A schematic diagram of the operation of the lock body of the limiting device for aviation container units provided by this utility model when laid flat.
[0029] In the diagram, 1 is the base; 2 is the lock body; 201 is the slot; 3 is the support; 301 is the mounting platform; 4 is the torsion spring one; 5 is the shaft one; 6 is the torsion spring two; 7 is the shaft two; and 8 is the container unit. Detailed Implementation
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.
[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0032] See Figures 1-10 This utility model provides an aircraft container unit movement limiting device, comprising:
[0033] Includes base 1, lock body 2, support 3, torsion spring 1 4, shaft 1 5, torsion spring 2 6, and shaft 2 7;
[0034] Shaft 1 (5) and shaft 2 (7) are both fixedly installed on base 1, lock body 2 is rotatably installed on shaft 2 (7), support 3 is rotatably installed on shaft 1 (5), torsion spring 1 (4) is sleeved on shaft 1 (5), and torsion spring 2 (6) is sleeved on shaft 2 (7).
[0035] When the container unit 8 is loaded, the lock body 2 and the support 3 are in a flat position and are lower than the bottom surface of the container unit 8. The container unit 8 can move smoothly over the limiting device without removing the limiting device. After the container unit 8 is in place, the lock body 2 is manually lifted and rotates around the shaft 7. At the same time, the support 3 moves with the lock body 2 under the action of the torsion spring 4. When the lock body 2 moves to an upright position, the locking platform 301 of the support 3 falls into the locking groove 201 of the lock body 2, thereby limiting the lock body 2. Under the combined action of the support 3 and the torsion spring, the lock body 2 remains upright, thereby limiting the movement of the container unit 8.
[0036] When it is necessary to unload the container unit 8, manually press down on the support 3 to disengage the locking platform 301 of the support 3 from the locking groove 201 of the lock body 2. At this time, the lock body 2 falls clockwise under the action of the torsion spring 6 and presses down on the support 3 so that it will not lift up. After the lock body 2 falls down, its height will be lower than the bottom surface of the container unit 8, ensuring that the container unit 8 can be smoothly crossed.
[0037] Specifically, one end of torsion spring 4 is fixedly connected to base 1, and the other end of torsion spring 4 presses on support 3. One end of torsion spring 6 is fixedly connected to base 1, and the other end of torsion spring 6 presses on lock body 2. It should be noted that this is to facilitate the reset of lock body 2 and support 3.
[0038] Specifically, the top of the base 1 contacts the container unit 8, and the inner side of the lock body 2 abuts against the container unit 8. The lock body 2 includes a self-standing part and a locking tongue, both of which abut against the container unit 8. It should be noted that this achieves vertical and forward / backward movement limitation of the container unit 8.
[0039] Specifically, the lock body 2 is provided with a slot 201 that cooperates with the support 3, and the support 3 is provided with a platform 301 that cooperates with the lock body 2. It should be noted that the support 3 provides support for the lock body 2.
[0040] Working principle:
[0041] S1: The movement limiting device of this aircraft container unit is fixed to the floor via the base 1. When the container unit 8 is being loaded, the movement limiting device is in the loading working state. Figure 4 As shown, both the lock body 2 and the support 3 are in a flat position, and the container unit 8 passes over the upper part of the limiting device;
[0042] S2: After container unit 8 moves into position, the result is as follows Figure 5As shown, when the lock body 2 is manually lifted, it rotates around axis 7. Simultaneously, the force exerted by the lock body 2 on the support 3 disappears. Under the action of torsion spring 4, the support 3 rotates clockwise around axis 5 along with the lock body 2. The result is as follows. Figure 6 As shown, when the lock body 2 moves to the upright position, the locking platform 301 of the support 3 falls into the locking groove 201 of the lock body. The support 3 provides support for the lock body 2. After the external force is removed, the lock body 2, under the action of the second torsion spring 6, has a clockwise rotation tendency. At the same time, the support 3, under the action of the first torsion spring 4, has a counterclockwise rotation tendency. The two are pressed together under the action of opposite forces, ensuring that the lock body 2 is in an upright position. The result is as follows. Figure 7 As shown, this allows for the rearward limitation of container unit 8, with the following result: Figure 8 As shown;
[0043] S3: Simultaneously lift the lock body 2 of the next limiting device, so that the lock body 2 is in an upright state. When the next container unit 8 moves into place, the forward movement of the container unit 8 can be limited, and the result is as follows. Figure 9 As shown;
[0044] S4: When it is necessary to unload container unit 8, manually press down support 3, such as... Figure 10 As shown, the locking platform 301 of the support 3 disengages from the locking groove 201 of the lock body 2. Under the action of the second torsion spring 6, the lock body 2 rotates clockwise around the second axis 7 and falls down. At the same time, the rear of the lock body 2 sinks down and presses against the support 3. Since the torque of the second torsion spring 6 is much greater than that of the first torsion spring 4, the lock body 2 presses the support 3 into the base 1. Finally, under the action of the second torsion spring 6, the lock body 2 and the support 3 remain in a flat position, as shown. Figure 2 As shown, at this time, the container unit 8 is released from its movement restriction and can move backward.
[0045] The foregoing has provided a detailed description of an aviation container unit movement limiting device. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A movement limiting device for an aviation container unit, characterized in that, include: Includes base (1), lock body (2), support (3), torsion spring one (4), shaft one (5), torsion spring two (6) and shaft two (7); The first shaft (5) and the second shaft (7) are both fixedly installed on the base (1), the lock body (2) is rotatably installed on the second shaft (7), the support (3) is rotatably installed on the first shaft (5), the first torsion spring (4) is sleeved on the first shaft (5), and the second torsion spring (6) is sleeved on the second shaft (7).
2. The aircraft container unit movement limiting device according to claim 1, characterized in that, One end of the torsion spring (4) is fixedly connected to the base (1), and the other end of the torsion spring (4) is pressed on the support (3).
3. The aircraft container unit movement limiting device according to claim 1, characterized in that, One end of the second torsion spring (6) is fixedly connected to the base (1), and the other end of the second torsion spring (6) is pressed on the lock body (2).
4. The aircraft container unit movement limiting device according to claim 1, characterized in that, The top of the base (1) is in contact with the container unit (8).
5. The aircraft container unit movement limiting device according to claim 4, characterized in that, The inner side of the lock body (2) abuts against the container unit (8).
6. The aircraft container unit movement limiting device according to claim 1, characterized in that, The lock body (2) is provided with a slot (201) that cooperates with the support (3).
7. The aircraft container unit movement limiting device according to claim 1, characterized in that, The support (3) is provided with a locking platform (301) that cooperates with the lock body (2).
8. The aircraft container unit movement limiting device according to claim 5, characterized in that, The lock body (2) includes a self-standing part and a locking tongue, both of which abut against the container unit (8).