An automatic container lock pin disassembly and unlocking fixture assembly

Abstract

This invention provides an automatic container lock pin disassembly and unlocking fixture unlocking component, belonging to the technical field of container-specific equipment. The invention includes a ring-shaped support, with two sets of unlocking components symmetrically arranged at the inner center of the ring-shaped support. Each unlocking component includes a bracket fixedly connected to the ring-shaped support, a rocker arm mounted on top of the bracket, one end of the rocker arm rotatably connected to the bracket via a rotating shaft, and a driving component mounted on the bracket to drive the rocker arm to rotate around its axis towards the inner center of the ring-shaped support. This invention effectively achieves automated unlocking of the lock pin, expands the application range of the automatic container lock pin disassembly and unlocking fixture, and improves the disassembly and assembly efficiency of the automatic container lock pin disassembly and unlocking fixture.

Description

Technical Field

[0001] This invention relates to an automatic disassembly and unlocking component for container lock pins, belonging to the technical field of container-specific equipment. Background Technology

[0002] A shipping container is a large cargo container with certain strength, rigidity, and specifications, specifically designed for repeated use. With economic development, the port transportation industry has also flourished, and containers are being used more and more widely. Safety is paramount in container shipping. A container carrying tens of tons of cargo can slip or overturn and detach from the vehicle, causing incalculable losses to life and property. Therefore, during sea transport, containers often slip or tip over due to wind or minor collisions. For safety, special locking pins are used to connect the upper and lower containers, ensuring relative stability during navigation. When the containers arrive at their destination for unloading, the locking pins are also hoisted onto the truck. As the truck leaves the port, workers manually remove and collect the locking pins from the containers.

[0003] With economic development, there are higher requirements for port operation efficiency. Automated control is now widely used in container hoisting and transportation operations to improve efficiency. However, the removal of container locking pins still requires manual operation. This is because different ships use different locking pin structures. According to incomplete statistics, there are hundreds of types of container locking pins commonly used on the market, each with a different structure and unlocking method. Therefore, it is difficult to remove locking pins using automated equipment. There are some clamps that can automatically remove and install locking pins, but they are only applicable to a very limited number of types of locking pins, limiting their applicability and making them unsuitable for actual operations. Therefore, there is an urgent need for a clamp that can automatically remove and install most types of locking pins to achieve automated locking pin removal and installation.

[0004] The unlocking component is the most important structure in the automatic disassembly and assembly fixture for container lock pins. The unlocking components used in existing automatic disassembly and assembly fixtures only realize the clamping function. For example, the published invention patents with application number 2020109335951 and patent name: "An Automatic Disassembly and Assembly Fixture for Container Locks" and application number 2020109331077, both of which are equipped with clamping arms, and clamping is achieved by the opposing movement of the upper parts of the two clamping arms. They can only realize the clamping function and can only be applied to the clamping of some lock pins, which is simple. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an unlocking component for an automatic container lock pin disassembly and assembly fixture, which solves the problem that the unlocking components in existing lock pin disassembly and assembly fixtures are simple in function, applicable to a limited number of lock pin types, and unable to achieve automated disassembly and assembly operations for most lock pins.

[0006] To achieve the above and other related objectives, the present invention provides an automatic container lock pin disassembly and disassembly clamp unlocking assembly, including an annular bracket. Two sets of unlocking assemblies are symmetrically arranged on the inner side of the annular bracket. Each unlocking assembly includes a bracket fixedly connected to the annular bracket. A rocker arm is arranged above the bracket. One end of the rocker arm is rotatably connected to the bracket via a rotating shaft. A drive assembly is arranged on one side of the rocker arm on the bracket to drive the rocker arm to rotate around the rotation axis in the direction of the inner center of the annular bracket.

[0007] In one embodiment of the present invention, the driving assembly includes a ratchet rotatably mounted on a bracket, a motor for driving the ratchet to rotate is disposed inside the bracket, a connecting rod is rotatably connected above the ratchet, a connecting portion extends outward from one side of the rotating shaft, and the connecting rod is rotatably connected to the connecting portion.

[0008] By adopting this technical solution: the motor in the drive assembly drives the fan-shaped ratchet to rotate inward to the inner side of the ring bracket. The fan-shaped ratchet is connected to the connecting part on the rotating shaft through a connecting rod. A cam mechanism is formed between the fan-shaped ratchet, the connecting rod and the connecting part. The rotation of the fan-shaped ratchet drives the rotating shaft to rotate counterclockwise. The rotating shafts in the two sets of unlocking assemblies rotate synchronously. The rocker arms connected to the rotating shaft move towards the center of the ring bracket under the drive of the rotating shaft. The working parts of the two rocker arms contact the surface of the lock cylinder below the lock pin to clamp the lock cylinder.

[0009] In one embodiment of the present invention, the ratchet is a fan-shaped ratchet.

[0010] By adopting this technical solution, the ratchet uses a fan-shaped ratchet, which achieves the driving function while occupying little space and will not interfere with the unlocking components.

[0011] In one embodiment of the present invention, the rocker arm is arc-shaped and extends upward at an angle, the end of the rocker arm is bent inward to form a working part, the upper surface of the working part is stepped, and a right-angle groove is provided at the bottom of the working part.

[0012] By adopting this technical solution: In some specially structured container lock pins, the unlocking mechanism is located on the side of the lower lock cylinder. When unlocking such lock pins, the two rocker arms in the unlocking assembly can move independently. The rocker arm corresponding to the unlocking mechanism on the lock cylinder can be driven by the drive assembly to hook the unlocking mechanism on the side of the lock cylinder using the working part on the rocker arm. Then, the slight rotation of the ring bracket drives the rocker arm to rotate, and the working part at the end of the rocker arm drives the unlocking mechanism to move to the unlocking position. Then, the working part locks the unlocking mechanism, and the rocker arm, driven by the drive mechanism, clamps the lock cylinder. Then, the rotation of the ring bracket unlocks the lock cylinder by rotation. In addition, the stepped structure and right-angle groove on the upper and lower sides of the working part can be used for different unlocking mechanisms. Depending on the structure of different unlocking mechanisms, the working part or the stepped structure and right-angle groove on the upper and lower sides of the working part contact the unlocking mechanism, and then the rocker arm or the ring bracket rotates to move the unlocking mechanism to unlock.

[0013] In one embodiment of the present invention, a locking component is provided on one side of the driving component. The locking component includes a pawl that cooperates with the ratchet. One end of the pawl is rotatably connected to the bracket. A linear motor is provided on one side of the pawl. The engagement between the pawl and the ratchet is controlled by the linear motor.

[0014] By adopting this technical solution: during the clamping process, in order to prevent the rocker arm from being unable to clamp stably due to excessive resistance from the lock cylinder, after the rocker arm clamps the lock cylinder, the locking component on one side of the drive assembly is activated. The linear motor in the locking component retracts when not in operation. At this time, the pawl disengages from the ratchet, and the ratchet can move freely. After the ratchet moves to the clamping position, the output shaft in the linear motor extends, and the pawl rotates around the axis to the side of the ratchet. The pawl meshes with the teeth on the side of the ratchet, and the pawl limits the ratchet. At this time, the ratchet cannot rotate, thereby improving the stability of the rocker arm clamping.

[0015] In one embodiment of the present invention, a plurality of screw holes are evenly spaced along the circumference on the upper surface of the annular bracket, and the bracket is fixedly connected to the annular bracket by screws.

[0016] By adopting this technical solution, several screw holes are set on the ring bracket, and the installation position of the unlocking component can be adjusted as needed. At the same time, other auxiliary mechanisms can also be installed on the ring bracket to improve the expandability of the unlocking component.

[0017] As described above, the container lock pin automatic disassembly and unlocking clamp assembly of the present invention has the following beneficial effects:

[0018] In this invention, the unlocking component consists of two sets of unlocking components mounted on a ring bracket. The two sets of unlocking components operate independently. The lock cylinder is clamped by the rotation of the rocker arm in the unlocking component, and then the lock cylinder is unlocked by the rotation driven by the ring bracket. This effectively realizes the automated unlocking of the lock pin. Furthermore, the unlocking component in this invention uses a rocker arm with a specific structure. In addition to the clamping function, the rocker arm can also work with the ring bracket and the drive component to unlock the unlocking mechanism on the side of the lock cylinder. This makes the clamping structure applicable to unlocking operations of most lock pins, expanding the applicability of the container lock pin automatic disassembly and assembly fixture and improving the disassembly and assembly efficiency of the container lock pin automatic disassembly and assembly fixture. Attached Figure Description

[0019] Figure 1 The diagram shown is an overall structural schematic of an automatic container lock pin disassembly and unlocking fixture component according to an embodiment of the present invention.

[0020] Figure 2 The diagram shown is a front view of the unlocking component of an automatic container lock pin disassembly and assembly clamp unlocking assembly according to an embodiment of the present invention.

[0021] Figure 3 The diagram shown is a schematic diagram of the back structure of an automatic disassembly and assembly clamp unlocking assembly for container lock pins, as described in an embodiment of the present invention.

[0022] Figure 4 The diagram shown is a top view of the unlocking component of an automatic disassembly and assembly clamp for container lock pins, as described in an embodiment of the present invention.

[0023] Figure 5 The diagram shows a rocker arm structure of an automatic disassembly and assembly clamp unlocking component for container lock pins, as described in an embodiment of the present invention.

[0024] Among them, 1. Ring bracket; 2. Unlocking component; 3. Rocker arm; 4. Drive component; 5. Locking component; 6. Bracket; 7. Rotating shaft; 8. Motor; 9. Connecting part; 10. Linkage rod; 11. Linear motor; 12. Pawl; 13. Ratchet; 14. Working part; 15. Right angle groove. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0026] Please see Figures 1 to 5It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0027] Please see Figure 1 This invention provides an automatic container lock pin disassembly and disassembly clamp unlocking assembly, including an annular bracket 1. Two sets of unlocking assemblies 2 are arranged opposite each other on the inner side of the annular bracket 1. The unlocking assembly 2 includes a bracket 6 fixedly connected to the annular bracket 1. A plurality of screw holes are evenly spaced along the circumference on the upper surface of the annular bracket 1. Corresponding through holes are through holes on the bracket 6. The bracket 6 is fixedly connected to the annular bracket 1 by screws passing through the through holes. The two sets of unlocking assemblies 2 on the inner side of the annular bracket 1 are arranged in rotational symmetry. The rocker arms 3 in the two sets of unlocking assemblies 2 are controlled separately by two sets of drive assemblies 4, which can also achieve synchronous movement. When performing clamping operations, the two rocker arms 3 rotate in the same direction and are clamped by the working part 14 at the end of the rocker arm 3.

[0028] Please see Figures 2 to 4 A rocker arm 3 is rotatably mounted on the upper inner side of the bracket 6. A rotating shaft 7 is connected to the lower end of the rocker arm 3. The rotating shaft 7 is rotatably connected to the bracket 6 and is perpendicular to the upper surface of the bracket 6. A drive assembly 4 is provided on one side of the rocker arm 3 on the bracket 6 to drive the rocker arm 3 to rotate around the rotating shaft 7 in the horizontal direction toward the inner center of the annular bracket 1. The drive assembly 4 includes a fan-shaped ratchet 13 rotatably mounted on the bracket 6. A motor 8 is provided inside the bracket 6 to drive the fan-shaped ratchet 13 to rotate. A connecting rod 10 is rotatably connected above the fan-shaped ratchet 13. A connecting part 9 extends outward from one side of the rotating shaft 7. The connecting rod 10 is rotatably connected to the connecting part 9. A locking assembly 5 is provided on one side of the drive assembly 4. The locking assembly 5 includes a pawl 12. One end of the pawl 12 is rotatably connected to the bracket 6, and the other end is engaged with the teeth on the side of the ratchet 13. A linear motor 11 or an electromagnetic switch is provided on one side of the pawl 12. The output shaft of the linear motor 11 or the electromagnetic switch is connected to the middle of one side of the pawl 12 and drives the pawl 12 to rotate around the connection point with the bracket 6 through the linear motion of the output shaft.

[0029] Please see Figure 5The rocker arm 3 is arc-shaped and extends upward at an angle. The end of the rocker arm 3 is bent inward to form a working part 14. The upper surface of the working part 14 is stepped, and a right-angle groove 15 is provided at the bottom of the working part 14.

[0030] The working principle of an automatic container lock pin disassembly and assembly clamp unlocking assembly is as follows: When the automatic container lock pin disassembly and assembly clamp disassembles and assembles the lock pin on the container, the clamp moves to the bottom of the lock pin, and then moves upward, causing the lock pin to enter the middle of the annular bracket 1 in the unlocking assembly. The clamp drives the unlocking assembly to move upward, so that the upper end of the rocker arm 3 in the unlocking assembly is flush with the surface of the lock cylinder below the lock pin. Then, the drive assembly 4 in the unlocking assembly is activated. The motor 8 in the drive assembly 4 drives the fan-shaped ratchet 13 to rotate inward towards the annular bracket 1. The fan-shaped ratchet 13 is connected to the connecting part 9 on the rotating shaft 7 via a connecting rod 10. A cam mechanism is formed between the fan-shaped ratchet 13, the connecting rod 10, and the connecting part 9. The rotation of the fan-shaped ratchet 13 drives the rotating shaft 7 to rotate counterclockwise. The rotating shafts 7 in the two sets of unlocking assemblies rotate synchronously. The rocker arm 3 connected to the rotating shaft 7 moves towards the annular bracket under the drive of the rotating shaft 7. 1. Moving in the center direction, the working parts 14 of the two rocker arms 3 contact the surface of the lock cylinder below the lock pin to clamp the lock cylinder. Then, the rotating mechanism in the container lock pin automatic disassembly and assembly fixture drives the ring bracket 1 to rotate. The ring bracket 1 drives the unlocking component 2 to rotate, thereby rotating the lock cylinder of the lock pin, so that the lock cylinder rotates to the unlock position. During the clamping process, in order to prevent the lock cylinder from having too much resistance to the rocker arm 3, which would cause the rocker arm 3 to be unable to clamp stably, after the rocker arm 3 clamps the lock cylinder, the locking component 5 on one side of the drive component 4 is activated. The linear motor 11 in the locking component 5 retracts when not working. At this time, the pawl 12 disengages from the ratchet 13, and the ratchet 13 can move freely. After the ratchet 13 moves to the clamping position, the output shaft in the linear motor 11 extends, and the pawl 12 rotates around the axis to the side of the ratchet 13. The pawl 12 meshes with the teeth on the side of the ratchet 13, and the pawl 12 limits the ratchet 13. At this time, the ratchet 13 cannot rotate, thereby improving the clamping stability of the rocker arm 3.

[0031] The above-mentioned unlocking assembly can not only perform clamping operations, but also, in some special structure container lock pins, the locking mechanism is located on the side of the lower lock cylinder of the lock pin. When unlocking the above-mentioned type of lock pin, the two rocker arms 3 in the unlocking assembly can move independently. The rocker arm 3 corresponding to the unlocking mechanism on the lock cylinder can be driven by the drive assembly 4 to hook the unlocking mechanism on the side of the lock cylinder using the working part 14 on the rocker arm 3. Then, the slight rotation of the ring bracket 1 drives the rocker arm 3 to rotate. The working part 14 at the end of the rocker arm 3 drives the unlocking mechanism to move to the unlocking position. Then, the working part 14 locks the unlocking mechanism. The rocker arm 3 clamps the lock cylinder by the drive mechanism, and then the lock cylinder is rotated and unlocked by the rotation of the ring bracket 1.

[0032] In addition, the stepped structure on the upper and lower sides of the working part 14 and the right-angle groove 15 can be used for different unlocking mechanisms. Depending on the structure of the different unlocking mechanisms, the working part 14 or the stepped structure on the upper and lower sides of the working part 14 and the right-angle groove 15 can be used to contact the unlocking mechanism. Then, the unlocking mechanism is unlocked by rotating the rocker arm 3 or the ring bracket 1. At the same time as unlocking, the two sets of rocker arms 3 can still clamp the lock cylinder. Then, the lock cylinder is rotated by rotating the ring bracket 1 to unlock.

[0033] In summary, the unlocking component of this invention consists of two sets of unlocking components mounted on a ring bracket. These two sets operate independently, clamping the lock cylinder by rotating the rocker arm within each unlocking component. The ring bracket then drives the lock cylinder to rotate, unlocking the lock. This effectively achieves automated unlocking of the lock pin. Furthermore, the unlocking component employs a rocker arm with a specific structure. Besides clamping, the rocker arm, in conjunction with the ring bracket and the driving component, unlocks the unlocking mechanism on the side of the lock cylinder. This makes the clamping structure applicable to unlocking most lock pins, expanding the applicability of the automatic container lock pin disassembly and assembly fixture and improving its disassembly and assembly efficiency. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial applicability.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An automatic disassembly and unlocking assembly for a container lock pin, comprising a ring bracket (1), characterized in that, At least one set of unlocking components (2) is symmetrically arranged on the inner center of the annular bracket (1). The unlocking component (2) includes a bracket (6) fixedly connected to the annular bracket (1). A rocker arm (3) is arranged above the bracket (6). The rocker arm (3) is arc-shaped and extends upward at an incline. The end of the rocker arm (3) is bent inward to form a working part (14). The upper surface of the working part (14) is stepped. A right-angle groove (15) is provided at the bottom of the working part (14). One end of the rocker arm (3) is connected to the bracket (6) through a pivot (7). Rotary connection, the support (6) is provided with a drive assembly (4) on one side of the rocker arm (3) to drive the rocker arm (3) to rotate around the axis of rotation in the direction of the inner center of the annular support (1). The drive assembly (4) includes a ratchet (13) rotatably mounted on the support (6). The support (6) is provided with a motor (8) to drive the ratchet (13) to rotate. A connecting rod (10) is rotatably connected above the ratchet (13). A connecting part (9) extends outward from one side of the rotating shaft (7). The connecting rod (10) is rotatably connected to the connecting part (9).

2. The container lock pin automatic disassembly and unlocking fixture assembly according to claim 1, characterized in that: The ratchet (13) is a fan-shaped ratchet.

3. The container lock pin automatic disassembly and unlocking fixture assembly according to claim 1, characterized in that: A locking component (5) is provided on one side of the drive component (4). The locking component (5) includes a pawl (12) that cooperates with the ratchet (13). One end of the pawl (12) is rotatably connected to the bracket (6). A linear motor (11) is provided on one side of the pawl (12). The engagement between the pawl (12) and the ratchet (13) is controlled by the linear motor (11).

4. The container lock pin automatic disassembly and unlocking fixture assembly according to claim 1, characterized in that: The upper surface of the annular bracket (1) is provided with a number of screw holes evenly spaced along the circumference, and the bracket (6) is fixedly connected to the annular bracket (1) by screws.

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