Rapid locking and unlocking device for container

Abstract

The utility model relates to the technical field of container fixing equipment, and discloses a container quick locking and unlocking device which comprises a hollow cushion block, rotating strips are rotationally connected to the front side and the rear side of the inner wall of the hollow cushion block, and fixing columns are fixedly connected to the bottom ends of the adjacent sides of the two rotating strips. Sliding blocks are rotationally connected to the top ends of the adjacent sides of the two rotating strips, hollow base plates are slidably connected to the adjacent sides of the outer walls of the two sliding blocks, reset springs are fixedly connected to the bottom ends of the hollow base plates, and the other ends of the reset springs are fixedly connected to the bottoms of the inner walls of the hollow base plates. According to the container locking device, the hollow base plate slides and compresses the reset spring, when the hollow base plate moves downwards, the rotating strip rotates, the sliding block slides along with the rotating strip to adapt to position changes, the fixed column and the rotating strip rotate together to drive the gear and the rack, the clamping block stretches out and is clamped with the container, and therefore locking and unlocking are rapidly completed.

Description

Technical Field

[0001] This utility model relates to the field of container fixing equipment technology, and in particular to a container quick locking and unlocking device. Background Technology

[0002] In modern logistics and transportation systems, containers serve as an important carrier for cargo transportation. Their efficient and safe loading, unloading, and transportation are of paramount importance. A container quick locking and unlocking device is a key piece of equipment used in various transportation scenarios to achieve rapid and stable connection and separation between containers and transportation equipment. This device is widely used in port loading and unloading, road and rail transportation, and other links, playing an indispensable role in improving logistics operation efficiency and ensuring the safety of cargo transportation.

[0003] Early container locking and unlocking devices mainly consisted of simple mechanical latches and manual operating components. Operators needed to manually operate each latch one by one with the aid of tools to complete the locking and unlocking process of the container. This method not only consumed a lot of manpower and time, but was also extremely inefficient when dealing with batch operations, and could not meet the needs of modern logistics for rapid turnover. With the development of technology, existing container fast locking and unlocking devices mostly adopt automated or semi-automated structures, using hydraulic drive and electric control, which has improved operating efficiency to a certain extent. However, these existing devices still have many problems. Due to their complex mechanical structure design, multiple linkage components need to be operated sequentially when performing locking and unlocking actions, resulting in a slow overall operating speed and an inability to quickly lock and unlock containers. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a container fast locking and unlocking device, which aims to improve the problem that the overall operating speed is slow when performing locking and unlocking actions in the prior art, and that it cannot quickly lock and unlock the container.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a container quick locking and unlocking device, comprising a hollow pad block, wherein rotating bars are rotatably connected to the front and rear sides of the inner wall of the hollow pad block, a fixing post is fixedly connected to the bottom end of an adjacent side of two rotating bars, a sliding block is rotatably connected to the top end of an adjacent side of two rotating bars, a hollow pad plate is slidably connected to an adjacent side of the outer wall of two sliding blocks, a return spring is fixedly connected to the bottom end of the hollow pad plate, the other end of the return spring is fixedly connected to the bottom of the inner wall of the hollow pad block, gears are fixedly connected to the front and rear sides of the outer wall of the fixing post, a rack is meshed with the outer wall of the gear, a locking block is fixedly connected to the top end of the rack, a notch is provided on the left side of the top end of the hollow pad block, an auxiliary clamping component is provided on the inner wall of the notch, and an installation mechanism is provided at the bottom of the hollow pad block.

[0006] As a further description of the above technical solution:

[0007] The installation mechanism includes a J-shaped hollow plate, which is disposed at the bottom of the hollow pad. L-shaped connecting blocks are fixedly connected to both the front and rear sides of the J-shaped hollow plate. A stud is threaded to the bottom of the inner wall of the J-shaped hollow plate, and a conical clamping block is fixedly connected to the top of the stud. U-shaped limiting plates are provided on both the front and rear sides of the outer wall of the J-shaped hollow plate, and the inner wall of the U-shaped limiting plate engages with the outer wall of the J-shaped hollow plate. Bolts are provided on the inner walls of the L-shaped connecting blocks, and the outer sides of the bolts engage with the inner walls of the corresponding L-shaped connecting blocks, U-shaped limiting plates, and J-shaped hollow plates. A clamping plate is fixedly connected to the inner wall of the U-shaped limiting plate. Multiple limiting grooves are opened on the left side of the outer wall of the J-shaped hollow plate, and the outer wall of the U-shaped limiting plate engages with the inner walls of the corresponding limiting grooves.

[0008] As a further description of the above technical solution:

[0009] The auxiliary clamping assembly includes a T-shaped limiting rotating plate. The outer right side of the T-shaped limiting rotating plate is rotatably connected to the inner wall of the recess. Limiting posts are slidably connected to the front and rear sides of the inner wall of the T-shaped limiting rotating plate. A buffer spring is fixedly connected to the bottom of the outer wall of the limiting post. The top end of the buffer spring is fixedly connected to the bottom end of the T-shaped limiting rotating plate. A buffer pad is fixedly connected to the top end of each limiting post.

[0010] As a further description of the above technical solution:

[0011] The hollow pad has a circular groove at the top center, and a fixed cone is provided on the inner wall of the circular groove. The bottom end of the fixed cone is fixedly connected to the bottom of the inner wall of the hollow pad.

[0012] As a further description of the above technical solution:

[0013] The top of the hollow pad has multiple anti-slip grooves, and the top left and right sides of the buffer pad have corrugated grooves.

[0014] As a further description of the above technical solution:

[0015] A limiting strip is fixedly connected to the bottom of the inner wall of the J-shaped hollow plate, and the inner wall size of the U-shaped limiting plate is the same as the outer wall size of the J-shaped hollow plate.

[0016] As a further description of the above technical solution:

[0017] The hollow pad has limit grooves on the front and rear sides of the right side of its inner wall, and the inner walls of the two limit grooves are slidably connected to the outer walls of the corresponding racks.

[0018] As a further description of the above technical solution:

[0019] The stud has multiple wear-resistant grooves on its outer wall, and the wear-resistant grooves are equally spaced on the outer wall of the stud.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by placing the container on top of the hollow pad, the hollow pad slides and compresses the return spring. When the hollow pad moves down, the rotating bar rotates, and the sliding block slides accordingly to adapt to the position change. The fixed column and the rotating bar rotate together, driving the gear and rack, so that the locking block extends and locks with the container, fixing the container. When the hollow pad moves down, it also contacts the T-shaped limiting rotating plate, causing it to rotate until it is perpendicular to the hollow pad, thereby quickly completing the locking and unlocking.

[0022] 2. In this utility model, the J-shaped hollow plate is placed on the outside of the transport platform and clamped and fixed by rotating studs and conical clamps. According to the container size, a hollow pad is placed above the J-shaped hollow plate. The U-shaped limiting plate is moved so that the clamping plate is engaged in the limiting groove. The L-shaped plate, the limiting plate and the J-shaped hollow plate are connected with bolts to realize the adjustment of the device position. For large transport platforms, the J-shaped hollow plate is rotated so that the curved part faces upward and is engaged in the groove above the platform. The curved part is used for limiting support, thereby adapting to the installation and fixing of different container sizes. Attached Figure Description

[0023] Figure 1 This is a perspective view of a container quick locking and unlocking device proposed in this utility model;

[0024] Figure 2 This is a side view of a container quick locking and unlocking device proposed in this utility model;

[0025] Figure 3This is a top view of a container quick locking and unlocking device proposed in this utility model;

[0026] Figure 4 This is an exploded view of a container quick locking and unlocking device proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of a hollow pad block for a container quick locking and unlocking device proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the mechanism of the T-shaped limiting rotating plate of the container quick locking and unlocking device proposed in this utility model.

[0029] Legend:

[0030] 1. Hollow pad; 2. Mounting mechanism; 201. J-shaped hollow plate; 202. Stud; 203. Conical clamp; 204. U-shaped limiting plate; 205. L-shaped connecting block; 206. Bolt; 207. Clamping plate; 208. Limiting groove; 3. Rotating bar; 4. Fixed column; 5. Sliding block; 6. Hollow pad; 7. Return spring; 8. Gear; 9. Rack; 10. Engaging block; 11. Notch; 12. T-shaped limiting rotating plate; 13. Limiting column; 14. Buffer spring; 15. Buffer pad; 16. Circular groove; 17. Fixed conical column; 18. Anti-slip groove; 19. Corrugated groove; 20. Limiting bar; 21. Limiting slide groove; 22. Wear-resistant groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0032] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a container quick locking and unlocking device, including a hollow pad 1, which serves as a support structure for the container. Rotating bars 3 are rotatably connected to the front and rear sides of the inner wall of the hollow pad 1. A fixing post 4 is fixedly connected to the bottom end of an adjacent side of each of the two rotating bars 3. A sliding block 5 is rotatably connected to the top end of an adjacent side of each of the two rotating bars 3. A hollow pad 6 is slidably connected to an adjacent side of the outer wall of each of the two sliding blocks 5. When the hollow pad 6 moves downward, it causes the rotating bars 3 to rotate, and the sliding blocks 5 slide above the hollow pad 6 to accommodate the rotation of the rotating bars 3. A composite... The container bottom first contacts the hollow pad 6, then slowly slides to the bottom, compressing the return spring 7. The other end of the return spring 7 is fixedly connected to the bottom of the inner wall of the hollow pad 1. Gears 8 are fixedly connected to the front and rear sides of the outer wall of the fixing column 4. A rack 9 is meshed with the outer wall of the gear 8. A locking block 10 is fixedly connected to the top of the rack 9. When the rotating bar 3 rotates, the fixing column 4 will rotate together, thereby driving the outer gear 8 to rotate. Due to the meshing relationship between the gear 8 and the rack 9, the rack 9 moves to the top, thereby extending the locking block 10 out of the hollow pad 1, and thus engaging with the bottom limit of the container. The hollow pad 1 has a notch 11 on its top left side, and an auxiliary clamping component is provided on the inner wall of the notch 11. An installation mechanism 2 is provided at the bottom of the hollow pad 1 for mounting the device above the transport equipment. The auxiliary clamping component includes a T-shaped limiting rotating plate 12, the outer right side of which is rotatably connected to the inner wall of the notch 11. As the hollow pad 6 falls and compresses, the T-shaped limiting rotating plate 12 rotates within the notch 11. When the container is completely placed above the hollow pad 1, the T-shaped limiting rotating plate 12 is perpendicular to the top of the hollow pad 1. The inner wall of the T-shaped limiting plate 12 is slidably connected to the front and rear sides of the limiting post 13. The bottom of the outer wall of the limiting post 13 is fixedly connected to the buffer spring 14. The top of the buffer spring 14 is fixedly connected to the bottom of the T-shaped limiting plate 12. The top of the limiting post 13 is fixedly connected to the buffer pad 15. The buffer pad 15 will contact the outside of the container to accommodate small size differences. When the container moves slightly during transportation, the buffer pad 15 will move, which will drive the limiting post 13 to slide above the T-shaped limiting plate 12 and stretch the buffer spring 14, thereby buffering the impact force of the container and avoiding damage to the surface of the container.

[0033] Specifically, the hollow pad 1 is securely installed above the transport equipment. When the container is lifted by the hoisting equipment and placed above the device, the bottom of the container will first contact the hollow pad 6, and then slowly slide down, compressing the return spring 7. Simultaneously, as the hollow pad 6 moves down, it will cause the rotating bar 3 to rotate, causing the sliding block 5 to slide above the hollow pad 6 to accommodate the change in position of the rotating bar 3. When the rotating bar 3 rotates, the fixing column 4 will rotate along with it, thereby driving the outer gear 8 to rotate. Due to the meshing relationship between the gear 8 and the rack 9, the rack 9 moves upward, causing the locking block 10 to extend from the hollow pad 1 and engage with the limiting hole at the bottom of the container, thus locking and fixing the container above the transport equipment. Simultaneously, as the hollow pad 6 moves down, it will first engage with the T-shaped limiting rotating plate 1. One end of the container 2 contacts the hollow pad 6 as it falls and presses, causing the T-shaped limiting plate 12 to rotate in the notch 11. When the container is completely above the hollow pad 1, the T-shaped limiting plate 12 is perpendicular to the top of the hollow pad 1. At the same time, the buffer pad 15 contacts the outside of the container to accommodate small size differences. When the container moves slightly during transportation, the buffer pad 15 will move, which will cause the limiting post 13 to slide above the T-shaped limiting plate 12 and stretch the buffer spring 14, thereby buffering the impact of the container and avoiding damage to the container surface. When the container is lifted, the return spring 7 will release its elastic potential energy, which will push the hollow pad 6 back to its initial height. At the same time, the locking block 10 will fall back into the hollow pad 1, thereby quickly completing the locking and unlocking of the container. Example

[0034] Reference Figure 1 , Figure 2 and Figure 3The installation mechanism 2 includes a J-shaped hollow plate 201, which is located at the bottom of the hollow pad 1. L-shaped connecting blocks 205 are fixedly connected to both the front and rear sides of the J-shaped hollow plate 201. A stud 202 is threadedly connected to the bottom of the inner wall of the J-shaped hollow plate 201, and a conical clamping block 203 is fixedly connected to the top of the stud 202. The J-shaped hollow plate 201 is placed on the outside of the transport platform, and its inner wall engages with the transport platform. By rotating the stud 202, the conical clamping block 203 clamps the plate, thus fixing the J-shaped hollow plate 201 above the transport equipment platform. U-shaped limiting plates 204 are provided on both the front and rear sides of the outer wall of the J-shaped hollow plate 201. The inner wall of the U-shaped limiting plate 204 is connected to the inner wall of the J-shaped hollow plate 201. The outer walls are engaged. The inner wall of the L-shaped connecting block 205 is provided with bolts 206. The outer walls of the bolts 206 are engaged with the inner walls of the corresponding L-shaped connecting block 205, U-shaped limiting plate 204 and J-shaped hollow plate 201 respectively. The inner wall of the U-shaped limiting plate 204 is fixedly connected with a clamping plate 207. The outer wall of the J-shaped hollow plate 201 has multiple limiting grooves 208 on the left side. The outer wall of the U-shaped limiting plate 204 is engaged with the inner wall of the corresponding limiting groove 208. The U-shaped limiting plate 204 is moved and the clamping plate 207 is engaged in the corresponding limiting groove 208. Then, the L-shaped connecting block 205, U-shaped limiting plate 204 and J-shaped hollow plate 201 are fixedly connected by bolts 206, so that the installation position of the device can be adjusted according to the size of the container.

[0035] Specifically, when the device needs to be installed above the transport equipment, if the transport platform is too wide, the J-shaped hollow plate 201 is placed on the outside of the transport platform, using its inner wall to engage with the transport platform. By rotating the stud 202, the conical clamping block 203 is driven to clamp it, thus fixing the J-shaped hollow plate 201 above the transport equipment platform. Then, according to the size of the container to be transported, the hollow pad 1 is placed above the J-shaped hollow plate 201, the U-shaped limiting plate 204 is moved, and the clamping plate 207 is engaged with the corresponding limiting plate. In the groove 208, the L-shaped connecting block 205, the U-shaped limiting plate 204 and the J-shaped hollow plate 201 are then fixedly connected by bolts 206, so that the device can be adjusted to adjust its installation position according to the size of the container. When encountering a huge transport platform, the J-shaped hollow plate 201 can be rotated so that its bent part faces the top, and it can be locked into the groove above the huge transport platform. The bent part of the J-shaped hollow plate 201 provides limiting and support for the device, so that it can be installed according to the usage scenario and the size of the container. Example

[0036] Reference Figure 1 , Figure 2 and Figure 3The hollow pad 6 has a circular groove 16 at the top center, which provides installation and positioning space for the fixed cone 17. The inner wall of the circular groove 16 is provided with the fixed cone 17, which plays a key role in tightly connecting the hollow pad 6 and the hollow pad block 1 and strengthening the overall structural stability. The bottom end of the fixed cone 17 is fixedly connected to the bottom of the inner wall of the hollow pad block 1. Its unique cone shape helps guide positioning during container assembly, ensuring the accuracy and firmness of the installation. The top of the hollow pad 6 has multiple anti-slip grooves 18, which increase the friction between the pad and the container placed on it. The top left and right sides of the buffer pad 15 have corrugated grooves 19, which increase the flexibility and compressibility of the buffer pad 15. The bottom of the inner wall of the J-shaped hollow plate 201 is fixedly connected with a limit strip 20. The limiting strip 20 can better restrict the movement of the J-shaped hollow plate 201 when it is placed above the transport equipment. The inner wall size of the U-shaped limiting plate 204 is the same as the outer wall size of the J-shaped hollow plate 201, which allows the U-shaped limiting plate 204 to be tightly fitted on the outside of the J-shaped hollow plate 201. The inner wall of the hollow pad 1 has limiting grooves 21 on both the front and rear sides of the right side. The inner walls of the two limiting grooves 21 are slidably connected to the outer walls of the corresponding racks 9. The limiting grooves 21 provide a precise guide path for the movement of the racks 9, ensuring the accuracy and stability of the movement of the racks 9. The outer wall of the stud 202 has multiple wear-resistant grooves 22. The wear-resistant grooves 22 are equidistantly opened on the outer wall of the stud 202. The wear-resistant grooves 22 can disperse the friction force, reduce the wear degree of the surface of the stud 202, and improve the service life of the stud 202.

[0037] Specifically, the circular groove 16 provides space for the installation and positioning of the fixed cone column 17, allowing it to be stably placed within it. The fixed cone column 17 also plays a crucial role in tightly connecting the hollow pad 6 and the hollow pad block 1, enhancing the overall structural stability. Its unique cone shape helps guide positioning during container assembly, ensuring accurate and secure installation. The anti-slip groove 18 increases the friction between the container and the hollow pad 6, preventing slippage and ensuring the stability of the container. This is especially important when the device is in dynamic operation or tilted; the anti-slip groove 18 significantly enhances the anti-slip effect. The corrugated groove 19 increases the flexibility and compressibility of the buffer pad 15. When external forces act on the buffer pad 15, its special structure makes it easier to deform, absorbing and dispersing impact forces, providing excellent cushioning and shock absorption, and protecting the contact pad. To prevent damage to objects from excessive impact, the limiting strip 20 better restricts the movement of the J-shaped hollow plate 201 when it is placed above the transport equipment. The U-shaped limiting plate 204, with its inner wall size matching the outer wall size of the J-shaped hollow plate 201, allows it to fit tightly around the J-shaped hollow plate 201, limiting and guiding it and preventing it from wobbling or falling out of position during movement. This enhances the stability and reliability of the device structure. The limiting groove 21 provides a precise guide path for the movement of the rack 9, ensuring its accuracy and stability, and thus ensuring the normal and efficient operation of the associated transmission mechanism. The wear-resistant groove 22 disperses friction, reducing wear on the surface of the stud 202, increasing its service life, and ensuring its performance stability during long-term use.

[0038] Working principle: First, the hollow pad 1 is installed above the transport equipment. When the container is lifted and placed above the device using hoisting equipment, the bottom of the container will first contact the hollow pad 6, and then slowly slide down, compressing the return spring 7. Simultaneously, as the hollow pad 6 moves downward, it drives the rotating bar 3 to rotate, causing the sliding block 5 to slide above the hollow pad 6 to adapt to the position change of the rotating bar 3. When the rotating bar 3 rotates, the fixing column 4 rotates accordingly, driving the outer gear 8 to rotate. Due to the meshing relationship between the gear 8 and the rack 9, the rack 9 will move upward, causing the locking block 10 to extend from the hollow pad 1 and engage with the limiting hole at the bottom of the container, thus firmly fixing the container above the transport equipment. Meanwhile, during the downward movement of the hollow pad 6, it will first contact the T-shaped... One end of the limiting rotating plate 12 contacts the hollow pad 6 as it falls and presses, causing the T-shaped limiting rotating plate 12 to rotate in the notch 11. When the container is completely placed on top of the hollow pad 1, the T-shaped limiting rotating plate 12 will be perpendicular to the top of the hollow pad 1, and the buffer pad 15 will contact the outside of the container. It can adapt to slight differences in size. During transportation, if the container moves slightly, the buffer pad 15 will move, thereby causing the limiting post 13 to slide above the T-shaped limiting rotating plate 12 and stretching the buffer spring 14 to buffer the impact of the container and avoid damage to the container surface. When the container is lifted, the return spring 7 will release elastic potential energy, pushing the hollow pad 6 back to the initial height. At the same time, the locking block 10 will fall and re-enter the hollow pad 1, thereby quickly completing the locking and unlocking of the container.

[0039] Furthermore, through the installation mechanism 2, during the installation of the device above the transport equipment, when the width of the transport platform exceeds the conventional size, the J-shaped hollow plate 201 can be placed on the outside of the transport platform, using its inner wall to engage with the platform. By rotating the stud 202, the conical clamping block 203 is driven to clamp, ensuring that the J-shaped hollow plate 201 is firmly fixed on the transport equipment platform. Then, according to the size requirements of the container, the hollow pad 1 is placed on the J-shaped hollow plate 201, the U-shaped limiting plate 204 is moved, and the clamping plate 207 is engaged. The L-shaped connecting block 205, the U-shaped limiting plate 204 and the J-shaped hollow plate 201 are then connected by bolts 206, so that the device can be adjusted to the installation position according to the container size. When facing a large transport platform, the J-shaped hollow plate 201 can be flipped so that the curved part faces the top and is locked into the groove above the transport platform. The curved part of the J-shaped hollow plate 201 provides limiting and support for the device, thereby achieving appropriate installation according to the usage requirements and container size.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A container quick locking and unlocking device, comprising a hollow pad (1), characterized in that: The hollow pad (1) has rotating bars (3) rotatably connected to the front and rear sides of its inner wall. The bottom ends of the two adjacent sides of the rotating bars (3) are fixedly connected to the fixing posts (4). The top ends of the two adjacent sides of the rotating bars (3) are rotatably connected to the sliding blocks (5). The adjacent sides of the outer walls of the two sliding blocks (5) are slidably connected to the hollow pads (6). The bottom end of the hollow pads (6) is fixedly connected to the return spring (7). The other end of the return spring (7) is fixedly connected to the bottom of the inner wall of the hollow pad (1). The front and rear sides of the outer wall of the fixing posts (4) are fixedly connected to the gears (8). The outer wall of the gears (8) is meshed with the rack (9). The top end of the rack (9) is fixedly connected to the locking block (10). The top left side of the hollow pad (1) has a notch (11). The inner wall of the notch (11) is provided with an auxiliary clamping component. The bottom of the hollow pad (1) is provided with an installation mechanism (2).

2. The container quick locking and unlocking device according to claim 1, characterized in that: The installation mechanism (2) includes a J-shaped hollow plate (201), which is disposed at the bottom of the hollow pad (1). L-shaped connecting blocks (205) are fixedly connected to the front and rear sides of the J-shaped hollow plate (201). A stud (202) is threadedly connected to the bottom of the inner wall of the J-shaped hollow plate (201), and a conical clamping block (203) is fixedly connected to the top of the stud (202). U-shaped limiting plates (204) are provided on the front and rear sides of the outer wall of the J-shaped hollow plate (201). The inner wall of the U-shaped limiting plate (204) is connected to the J-shaped hollow plate (1). The outer wall of the hollow plate (201) is engaged with the inner wall of the L-shaped connecting block (205). Bolts (206) are provided on the inner wall of the L-shaped connecting block (205), the U-shaped limiting plate (204) and the J-shaped hollow plate (201) respectively. The inner wall of the U-shaped limiting plate (204) is fixedly connected with a clamping plate (207). Multiple limiting grooves (208) are opened on the left side of the outer wall of the J-shaped hollow plate (201). The outer wall of the U-shaped limiting plate (204) is engaged with the inner wall of the corresponding limiting groove (208).

3. The container quick locking and unlocking device according to claim 1, characterized in that: The auxiliary clamping assembly includes a T-shaped limiting rotating plate (12). The outer right side of the T-shaped limiting rotating plate (12) is rotatably connected to the inner wall of the recess (11). Limiting posts (13) are slidably connected to the front and rear sides of the inner wall of the T-shaped limiting rotating plate (12). A buffer spring (14) is fixedly connected to the bottom of the outer wall of the limiting post (13). The top end of the buffer spring (14) is fixedly connected to the bottom end of the T-shaped limiting rotating plate (12). A buffer pad (15) is fixedly connected to the top end of the limiting post (13).

4. The container quick locking and unlocking device according to claim 1, characterized in that: The hollow pad (6) has a circular groove (16) at the top center, and a fixed cone (17) is provided on the inner wall of the circular groove (16). The bottom end of the fixed cone (17) is fixedly connected to the bottom of the inner wall of the hollow pad (1).

5. A container quick locking and unlocking device according to claim 3, characterized in that: The top of the hollow pad (6) is provided with multiple anti-slip grooves (18), and the top left and right sides of the buffer pad (15) are provided with corrugated grooves (19).

6. A container quick locking and unlocking device according to claim 2, characterized in that: The bottom of the inner wall of the J-shaped hollow plate (201) is fixedly connected to a limiting strip (20), and the inner wall size of the U-shaped limiting plate (204) is the same as the outer wall size of the J-shaped hollow plate (201).

7. A container quick locking and unlocking device according to claim 1, characterized in that: The hollow pad (1) has a limiting groove (21) on the front and rear sides of the right side of the inner wall. The inner walls of the two limiting grooves (21) are slidably connected to the outer walls of the corresponding racks (9).

8. A container quick locking and unlocking device according to claim 2, characterized in that: The stud (202) has multiple wear-resistant grooves (22) on its outer wall, and the wear-resistant grooves (22) are equidistantly provided on the outer wall of the stud (202).

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