Automatic locking mechanism for twistlock of container

Abstract

The present application belongs to the crane technical field, disclose a kind of container turn lock automatic locking mechanism, including connecting block (1), cam (2), turn lock (3), cross pin shaft (4), oil cylinder (5), oil cylinder bearing (6), turn lock rotary rod (7) and turn lock connecting rod (8);The connecting block (1) is "concave" type structure, and connecting hole is provided at its opening, and the opening of two connecting blocks (1) is opposite and is connected by cross pin shaft (4);One of connecting block (1) is fixedly connected with the right side of cam (2), and the other connecting block (1) is fixedly connected with the piston rod of oil cylinder (5);The other end of oil cylinder (5) is hinged with mechanism fixed plate right end by oil cylinder bearing (6);The mechanism fixed plate is fixedly connected with container.The present application is safe and reliable in structure, realizes the quick automation docking of spreader and container, realizes the automatic control of container in the process of quick transfer.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cranes, and particularly relates to a container twist lock automatic locking mechanism. BACKGROUND

[0002] Container transportation is the safest carrier of modern goods transportation, and it is convenient and fast to transport materials through containers. However, in the process of rapid container transfer, it is difficult to realize the hoisting of the container if there is no large-scale hoisting equipment on site, and therefore an independent device is needed to assist in loading and unloading. In this process, the automatic docking of the spreader and the container needs to be realized to achieve the purpose of automatic control, which cannot be realized by the prior art. If it is completed manually, firstly, automation cannot be realized, and secondly, high-altitude operation is needed in the locking process, which has safety hazards. SUMMARY

[0003] The technical problem to be solved by the application is the automatic docking and control of the spreader in the process of rapid container transfer.

[0004] To solve the above technical problems, the specific technical scheme of the container twist lock automatic locking mechanism is as follows:

[0005] A container twist lock automatic locking mechanism, comprising a connecting block 1, a cam 2, a twist lock 3, a cross pin shaft 4, an oil cylinder 5, an oil cylinder bearing 6, a twist lock rotating rod 7 and a twist lock connecting rod 8; the connecting block 1 is in a “concave” structure, an opening of the connecting block 1 is provided with a connecting hole, and the openings of the two connecting blocks 1 are opposite and connected through the cross pin shaft 4; one of the connecting blocks 1 is fixedly connected with the right side surface of the cam 2, and the other connecting block 1 is fixedly connected with the piston rod of the oil cylinder 5; the other end of the oil cylinder 5 is hingedly connected with the right end of a mechanism fixed plate through the oil cylinder bearing 6; the mechanism fixed plate is fixedly connected with a container; the left end of the mechanism fixed plate is provided with a clamping groove in the lower surface, the shape of the clamping groove is consistent with that of the twist lock head, and the width of the clamping groove is consistent with the thickness of the twist lock 3; the back of the cam 2 is fixedly connected with the front end of the twist lock rotating rod 7; the twist lock rotating rod 7 is horizontally arranged, and the tail end of the twist lock rotating rod 7 is fixedly connected with the upper end of the twist lock connecting rod 8; the twist lock connecting rod 8 is vertically arranged and perpendicular to the twist lock rotating rod 7; the twist lock 3 is fixedly connected with the lower end of the twist lock connecting rod 8; and the twist lock connecting rod 8 can rotate along the axis thereof and can move up and down.

[0006] The upper surface of the left end of the mechanism fixed plate is provided with a first twist lock rotating rod limiting block 9 and a second twist lock rotating rod limiting block 10, and the first limiting block 9 and the second limiting block 10 are at a 90° angle.

[0007] The cam 2 can rotate with the twist lock connecting rod 8 as a radius.

[0008] Wherein, the initial state of the turn lock 3 is in butt joint with the container corner fitting.

[0009] The automatic locking process of the turn lock: the initial state of the piston rod of the oil cylinder 5 is extended to the maximum stroke, the cam 2 is at the minimum position, and the turn lock 3 is consistent with the direction of the container corner fitting. The turn lock 3 is combined with the container corner fitting, the piston rod of the oil cylinder 5 is retracted, the cam 2 is pulled to drive the turn lock connecting rod 8 to rotate through the connecting block 1, and stops at the limited position of the second limiting block 10, at this time, the turn lock 3 is rotated by 90°, the piston rod continues to retract, the cam 2 is pulled to the maximum position, the turn lock connecting rod 8 connected with the cam 2 drives the turn lock 3 to move upward, the turn lock enters the clamping groove, the oil cylinder 5 is pressure-kept, and the turn lock 3 is in the tension state.

[0010] The automatic locking process of the turn lock: the initial state of the piston rod of the oil cylinder 5 is extended to the maximum stroke, the cam 2 is at the minimum position, and the turn lock 3 is consistent with the direction of the container corner fitting. The turn lock 3 is combined with the container corner fitting, the piston rod of the oil cylinder 5 is retracted, the cam 2 is pulled to drive the turn lock connecting rod 8 to rotate through the connecting block 1, and stops at the limited position of the second limiting block 10, at this time, the turn lock 3 is rotated by 90°, the piston rod continues to retract, the cam 2 is pulled to the maximum position, the turn lock connecting rod 8 connected with the cam 2 drives the turn lock 3 to move upward, the turn lock enters the clamping groove, the oil cylinder 5 is pressure-kept, and the turn lock 3 is in the tension state.

[0011] Wherein, the oil cylinder bearing 6 is a ball bearing.

[0012] The container turn lock automatic locking mechanism has the following advantages: the structure is safe and reliable, the quick automatic butt joint of the lifting appliance and the container is realized, and the automatic control of the container in the quick transfer process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the container turn lock automatic locking mechanism.

[0014] Figure 2 It is a left view of Figure 1 .

[0015] Figure 3 It is a top view of Figure 1 . DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the present application, the container turn lock automatic locking mechanism will be further described in detail below in combination with the drawings.

[0017] As shown in Figures 1-3 , the container turn lock automatic locking mechanism comprises a connecting block 1, a cam 2, a turn lock 3, a cross pin shaft 4, an oil cylinder 5, an oil cylinder bearing 6, a turn lock rotating rod 7, a turn lock connecting rod 8, a first limiting block 9 and a second limiting block 10.

[0018] The connecting block 1 is in the shape of "concave" structure, and the opening is provided with a connecting hole. The openings of two connecting blocks 1 are opposite and connected by a cross pin shaft 4. One of the connecting blocks 1 is fixedly connected with the right side of the cam 2, and the other connecting block 1 is fixedly connected with the piston rod of the oil cylinder 5. The other end of the oil cylinder 5 is hingedly connected with the right end of the mechanism fixed plate through an oil cylinder bearing 6. The oil cylinder bearing 6 is a ball bearing. The mechanism fixed plate is fixedly connected with the container.

[0019] The left end of the mechanism fixed plate is provided with a clamping groove on the lower surface, and the shape of the clamping groove is consistent with that of the twist lock head, and the width of the clamping groove is consistent with the thickness of the twist lock 3. The left end of the mechanism fixed plate is provided with a first twist lock rotating rod limiting block 9 and a second twist lock rotating rod limiting block 10 on the upper surface, and the first limiting block 9 and the second limiting block 10 are at an angle of 90°. The first limiting block 9 is tangent to the initial position of the twist lock rotating rod 7, thereby limiting the initial angle; the second limiting block 10 is tangent to the final position of the twist lock rotating rod 7, thereby limiting the rotation angle between the final position and the initial position of the twist lock rotating rod 7 to be 90°.

[0020] The back of the cam 2 is fixedly connected with the front end of the twist lock rotating rod 7; the twist lock rotating rod 7 is horizontally arranged, and the tail end thereof is fixedly connected with the upper end of the twist lock connecting rod 8; the twist lock connecting rod 8 is vertically arranged and perpendicular to the twist lock rotating rod 7. The twist lock 3 is fixedly connected with the lower end of the twist lock connecting rod 8. The twist lock connecting rod 8 can rotate along the axis thereof and can move up and down. In turn, the cam 2 can rotate with the twist lock connecting rod 8 as the radius. The twist lock 3 is initially abutted with the container corner fitting, penetrates into the container, and then the twist lock rotating rod 7 is pushed by the oil cylinder to realize the rotation of the twist lock 3 by 90°, thereby locking the spreader with the container.

[0021] Working process:

[0022] Automatic locking process of the twist lock: in the initial state, the piston rod of the oil cylinder 5 is extended to the maximum stroke, the cam 2 is in the minimum position, and the twist lock 3 is consistent with the direction of the container corner fitting. The twist lock 3 is sleeved with the container corner fitting, the piston rod of the oil cylinder 5 is retracted, the cam 2 is pulled to drive the twist lock connecting rod 8 to rotate through the connecting block 1, and stops at the position limited by the second limiting block 10. At this time, the twist lock 3 is rotated by 90°, the piston rod continues to retract, the cam 2 is pulled to the maximum position, the twist lock connecting rod 8 connected therewith drives the twist lock 3 to move upward, the twist lock enters the clamping groove, the oil cylinder 5 is kept pressure, and the twist lock 3 is in the tension state.

[0023] Automatic unlocking process of the twist lock: the piston rod of the oil cylinder 5 is extended, the initial state cam 2 rotates to the minimum position along the clamping groove to the left, the twist lock 3 exits the clamping groove, the oil cylinder 5 continues to extend, the cam 2 starts to rotate, the twist lock connecting rod 8 rotates through the connecting block 1, and stops at the position limited by the first limiting block 9. At this time, the twist lock 3 is rotated by 90° and returns to the initial state, and the direction is consistent with the direction of the hole on the container corner fitting. The twist lock 3 exits, that is, the twist lock 3 is unlocked.

[0024] The automatic locking mechanism of the container twist lock is safe and reliable in structure, realizes quick and automatic docking of the lifting appliance and the container, and realizes automatic control of the container in the quick transfer process.

[0025] Although the embodiments of the present application are described in combination with the drawings, several modifications and improvements can be made by those skilled in the art without departing from the principles of the present application, and these should also be considered as belonging to the protection scope of the present application.

Claims

1. An automatic locking mechanism for a container turnlock, characterized in that, It includes a connecting block (1), a cam (2), a rotary lock (3), a cross pin (4), a hydraulic cylinder (5), a hydraulic cylinder bearing (6), a rotary lock swivel (7), and a rotary lock connecting rod (8). The connecting block (1) has a U-shaped structure with a connecting hole at its opening. The openings of the two connecting blocks (1) are opposite each other and connected by a cross pin (4). One connecting block (1) is fixedly connected to the right side of the cam (2), and the other connecting block (1) is fixedly connected to the piston rod of the oil cylinder (5). The other end of the oil cylinder (5) is hinged to the right end of the mechanism fixing plate through an oil cylinder bearing (6). The oil cylinder bearing (6) is a ball bearing. The mechanism fixing plate is fixedly connected to the container. The lower left surface of the fixing plate of the mechanism is provided with a slot, the shape of which is consistent with the rotating lock head, and its width is consistent with the thickness of the rotating lock (3); the back of the cam (2) is fixedly connected to the front end of the rotating lock rod (7); the rotating lock rod (7) is set horizontally, and its tail end is fixedly connected to the upper end of the rotating lock connecting rod (8); the rotating lock connecting rod (8) is set vertically and is perpendicular to the rotating lock rod (7); the rotating lock (3) is fixed to the lower end of the rotating lock connecting rod (8); the rotating lock connecting rod (8) can rotate along its own axis and can move up and down; the cam (2) can rotate with the rotating lock connecting rod (8) with the rotating lock rod (7) as the radius; The upper surface of the left end of the mechanism fixing plate is provided with a first limiting block (9) and a second limiting block (10), and the first limiting block (9) and the second limiting block (10) form a 90° angle; the first limiting block (9) is tangent to the initial position of the rotary lock rod (7); the second limiting block (10) is tangent to the final position of the rotary lock rod (7); Automatic locking process of the rotary lock: In the initial state, the piston rod of the hydraulic cylinder (5) extends to the maximum stroke, the cam (2) is at the minimum position, and the rotary lock (3) is aligned with the container corner fitting. The rotary lock (3) is fitted with the container corner fitting, the piston rod of the hydraulic cylinder (5) retracts, and through the connecting block (1), the cam (2) is pulled to drive the rotary lock connecting rod (8) to rotate. It stops at the position limited by the second limit block (10). At this time, the rotary lock (3) rotates 90°, the piston rod continues to retract, and the cam (2) is pulled to the maximum position. The rotary lock connecting rod (8) fixed to it drives the rotary lock (3) to move upward. The rotary lock enters the slot, the hydraulic cylinder (5) holds pressure, and the rotary lock (3) is in a tightened state.

2. The container turnlock automatic locking mechanism according to claim 1, characterized in that, The initial state of the turnlock (3) is connected to the corner fitting of the container.

3. The container turnlock automatic locking mechanism according to claim 2, characterized in that, Automatic release process of the rotary lock: The piston rod of the hydraulic cylinder (5) extends, and the cam (2) rotates to the left along the slot to the minimum position in the initial state. The rotary lock (3) exits the slot, the hydraulic cylinder (5) continues to extend, the cam (2) starts to rotate, and through the connecting block (1), the rotary lock connecting rod (8) rotates and stops at the position limited by the first limit block (9). At this time, the rotary lock (3) rotates 90° and returns to the initial state. The direction is consistent with the direction of the hole on the container corner fitting. The rotary lock (3) exits, that is, the rotary lock (3) is released.

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