FTR lock anti-hooking device for hoisting operation container

Abstract

The invention discloses an FTR lock hooking prevention device for a hoisting operation container, and belongs to the technical field of hoisting operation, the FTR lock hooking prevention device comprises a container, the container is placed on a tractor, and container corner fittings are welded to the inner wall of the container; the FTR lock body is slidably connected to the surface of the tractor, and a locking mechanism is slidably connected to the interior of the FTR lock body; the triggering mechanism is mounted in the FTR lock body, and the surface of the triggering mechanism is in sliding connection with the locking mechanism; the fixed lock mechanism is connected to the surface of the tractor in a sliding mode and communicates with a triggering mechanism in the FTR lock body. The FTR lock body can freely slide on the surface of a tractor and can be matched with containers of different specifications. When the container is placed in place, the FTR lock body can be automatically locked at the corresponding position of the tractor, and the container corner fitting can be locked under the action of the FTR lock body. When the container is unloaded, manual operation of an operator is not needed, it can be ensured that the FTR lock body is separated from the corner fitting of the container, the hooking possibility is eradicated, and the safety of hoisting operation is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of hoisting operation technology, specifically to an FTR lock anti-snagging device for hoisting containers. Background Technology

[0002] In container lifting operations, FTR locks (container twist locks) and cranes together form a highly efficient and safe lifting system. The crane provides the lifting and movement power for the container, while the FTR lock is used to achieve safe and reliable rapid unhooking.

[0003] During operation, the crane operator uses a spreader to place the container on top of the vehicle and then secures it tightly to the container corner fittings using a locking mechanism. When unloading the container, the operator needs to use a tool (such as a wrench) to operate the unlocking handle in the unlocking direction, so that the turnlock disengages from the container corner fittings.

[0004] Unlocking containers requires operators to strictly follow operating procedures. In recent years, many accidents have occurred because operators failed to strictly follow operating procedures and failed to confirm the separation of corner fittings, resulting in cranes unknowingly lifting the vehicle and container together and derailing them. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an FTR lock anti-snagging device for lifting containers, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An FTR lock anti-snagging device for a container used in hoisting operations includes:

[0008] The container is placed on the tractor, and the inner wall of the container is welded with container corner fittings;

[0009] The FTR lock body is slidably connected to the surface of the tractor unit. Inside the FTR lock body, there is a locking mechanism that is slidably connected. The locking mechanism is engaged inside the corner fittings of the container to achieve locking between the container and the tractor unit.

[0010] The triggering mechanism, installed inside the FTR lock body, is slidably connected to the surface and the locking mechanism, and is used to cooperate with the container to lock and unlock the locking mechanism and the container corner fittings;

[0011] The fixed locking mechanism is slidably connected to the surface of the tractor and communicates with the triggering mechanism inside the FTR lock body. When the FTR lock body moves to the required working position, the triggering mechanism will drive the fixed locking mechanism to engage inside the tractor under the action of the container, and lock the FTR lock body in that position.

[0012] As a preferred embodiment of the present invention, the locking mechanism includes: corner fitting holes, formed on both side walls of the container corner fitting; a locking bar groove, horizontally formed inside the FTR lock body, with a locking bar slidably connected inside the locking bar groove, and the end of the locking bar being engaged in the corner fitting hole; a lock head groove, vertically formed inside the FTR lock body, with a lock head slidably connected inside; a first inclined surface, formed on the side of the lock head; and a second inclined surface, formed at the end of the locking bar, with the first inclined surface and the second inclined surface slidably connected.

[0013] As a preferred embodiment of the present invention, at least two sets of guide wheels are rotatably connected to the surface of the second inclined surface, and the guide wheels are rolledly connected to the surface of the first inclined surface.

[0014] As a preferred embodiment of the present invention, the triggering mechanism includes: a locking plate, fixed on the inner wall of the container corner fitting, which presses against the top of the FTR lock body when the container is placed; a status sensor, installed on the top of the FTR lock body; and an electromagnetic lock body, fixed inside the lock head groove and electrically connected to the status sensor, with the end of the electromagnetic lock body connected to the side of the lock head via a compression spring.

[0015] As a preferred embodiment of the present invention, the locking mechanism includes: a lock body, fixed to the bottom of the FTR lock body, with a lock body groove inside; a lock body groove, formed on the surface of the tractor, with the lock body surface slidably connected to the inside of the lock body groove, and safety pin holes on both sides of the lock body groove; a lock cone, slidably connected to the inside of the lock body groove, and the lock cone is connected to the inner wall of the lock body groove by a spring; and a safety pin, slidably connected to the inside of the lock body, with one end fixed to the side of the lock cone and the other end engaged in the safety pin hole.

[0016] Compared with the prior art, the embodiments of the present invention have the following advantages: the FTR lock body of the present invention can slide freely on the surface of the tractor, thereby matching containers of different sizes. When the container is placed in position, the FTR lock body will automatically lock in the corresponding position on the tractor, and the corner fittings of the container will be locked under the action of the FTR lock body.

[0017] When unloading containers, no manual operation is required from the operators. This ensures that the FTR lock body and the container corner fittings are detached, eliminating the possibility of entanglement and maximizing the safety of the lifting operation.

[0018] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a container for an FTR lock anti-snagging device for a hoisting operation container provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a container for an FTR lock anti-snagging device for a hoisting operation container provided by the present invention.

[0021] Figure 3 This invention provides a schematic diagram of the structure of the FTR lock body of an FTR lock anti-snagging device for a container used in hoisting operations.

[0022] Figure 4 This invention provides a schematic diagram of the internal structure of the FTR lock body of an FTR lock anti-snagging device for a container used in hoisting operations.

[0023] Reference numerals: 1. Container; 10. Tractor; 11. Container corner fitting; 12. FTR lock body; 2. Locking mechanism; 21. Corner fitting hole; 22. Lock bar groove; 23. Lock bar; 24. Lock head groove; 25. Lock head; 26. First inclined surface; 27. Second inclined surface; 28. Guide wheel; 3. Triggering mechanism; 31. Lock plate; 32. Status sensor; 33. Electromagnetic lock body; 34. Compression spring; 4. Fixed locking mechanism; 41. Lock body groove; 42. Safety pin hole; 43. Lock body; 44. Lock body groove; 45. Lock cone; 46. Safety pin; 47. Spring; 48. Air duct. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] See Figures 1-4 An FTR lock anti-snagging device for a container used in hoisting operations, comprising:

[0027] Container 1 is placed on tractor 10, and container corner fittings 11 are welded to the inner wall of container 1.

[0028] FTR lock body 12 is slidably connected to the surface of tractor 10. Inside FTR lock body 12, there is a locking mechanism 2 that is slidably connected. The locking mechanism 2 is engaged inside container corner fitting 11 to achieve locking between container 1 and tractor 10.

[0029] Triggering mechanism 3, installed inside FTR lock body 12, is slidably connected to locking mechanism 2 on its surface, and is used to cooperate with container 1 to lock and unlock locking mechanism 2 and container corner fitting 11;

[0030] The fixed locking mechanism 4 is slidably connected to the surface of the tractor 10 and communicates with the triggering mechanism 3 inside the FTR lock body 12. When the FTR lock body 12 moves to the required working position, the triggering mechanism 3 will drive the fixed locking mechanism 4 to engage inside the tractor 10 under the action of the container 1, and lock the FTR lock body 12 in that position.

[0031] In one embodiment of the present invention, such as Figure 3 and Figure 4 As shown, the locking mechanism 2 includes: corner fitting holes 21, which are formed on both side walls of the container corner fitting 11; a locking bar groove 22, which is horizontally formed inside the FTR lock body 12, and a locking bar 23 is slidably connected inside the locking bar groove 22, with the end of the locking bar 23 inserted into the corner fitting hole 21; a lock head groove 24, which is vertically formed inside the FTR lock body 12, and a lock head 25 is slidably connected inside, the lock head 25 being made of magnetic material; a first inclined surface 26, which is formed on the side of the lock head 25; and a second inclined surface 27, which is formed at the end of the locking bar 23, with the first inclined surface 26 and the second inclined surface 27 slidably connected.

[0032] In this embodiment, during operation, the crane operator places the container 1 on top of the tractor 10 using a spreader, and then precisely places the container corner piece 11 onto the surface of the FTR lock body 12. At this time, the lock head 25 moves upward in the lock head groove 24 under the action of the triggering mechanism 3. When the lock head 25 moves, it will drive the first inclined surfaces 26 on both sides to move. The first inclined surfaces 26 can push the locking rod 23 outward in the locking rod groove 22 through the second inclined surfaces 27 until both sets of locking rods 23 are engaged inside the corner piece hole 21. The FTR lock body 12 will fix the container corner piece 11 under the action of the corner piece hole 21 and the locking rod 23, thereby fixing the container corner piece 11 to the container 1, thus firmly lifting the container 1.

[0033] Furthermore, such as Figure 4 As shown, at least two sets of guide wheels 28 are rotatably connected to the surface of the second inclined surface 27, and a slide rail is provided on the surface of the first inclined surface 26, with the guide wheels 28 slidably connected within the slide rail. By converting the sliding friction between the first inclined surface 26 and the second inclined surface 27 into rolling friction between the guide wheels 28 and the slide rail, wear between the first inclined surface 26 and the second inclined surface 27 is reduced.

[0034] In one embodiment of the present invention, such as Figure 4 As shown, the triggering mechanism 3 includes: a locking plate 31, fixed on the inner wall of the container corner piece 11, which presses against the top of the FTR lock body 12 when the container 1 is placed; a status sensor 32, installed on the top of the FTR lock body 12; and an electromagnetic lock body 33, fixed inside the lock head groove 24 and electrically connected to the status sensor 32. The end of the electromagnetic lock body 33 is connected to the side of the lock head 25 through a compression spring 34.

[0035] In this embodiment, when container 1 is placed in position, the locking plate 31 is pressed against the top of the FTR lock body 12. When the status sensor 32 senses the locking plate 31, the status sensor 32 will control the electromagnetic lock body 33 to open. Specifically, the status sensor 32 is a pressure sensor, and the lock head 25 is made of magnetic material. The lock head 25 will move upward in the lock head groove 24 under the magnetic attraction of the electromagnetic lock body 33, and compress the compression spring 34. The lock head groove 24 will drive the two sets of first inclined surfaces 26 to move upward. The first inclined surfaces 26 drive the locking rod 23 to move through the second inclined surface 27 until the locking rod 23 moves into the corner fitting hole 21, thereby realizing the locking between container 1 and tractor 10.

[0036] In one embodiment of the present invention, such as Figure 4 As shown, the locking mechanism 4 includes: a lock body 43, fixed to the bottom of the FTR lock body 12, with a lock body groove 44 inside, the inside of the lock body groove 44 being connected to the inside of the lock head groove 24 through an air duct 48; a lock body groove 41, formed on the surface of the tractor 10, with the surface of the lock body 43 slidably connected to the inside of the lock body groove 41, and safety pin holes 42 on both sides of the lock body groove 41; a lock cone 45, slidably connected to the inside of the lock body groove 44, the lock cone 45 being connected to the inner wall of the lock body groove 44 through a spring 47; and a safety pin 46, slidably connected to the inside of the lock body 43, one end being fixed to the side of the lock cone 45, and the other end being engaged in the inside of the safety pin hole 42, the end of the safety pin 46 and the entrance of the safety pin hole 42 being chamfered to facilitate the smooth guidance of the safety pin 46 into position.

[0037] In this embodiment, as Figure 3 As shown, the lock body 43 has an inverted T-shaped structure, which allows the lock body 43 to move stably within the lock body groove 41. When loading and unloading containers 1 of different sizes, the FTR lock body 12 is first slid along the direction of the tractor 10, so that the FTR lock body 12 drives the lock body 43 to move within the lock body groove 41 until the specifications of the FTR lock body 12 and the container 1 match each other.

[0038] When container 1 is placed in position, as the lock head 25 moves upward within the lock head groove 24, the space inside the lock head groove 24 decreases. The gas inside the lock head groove 24 enters the lock body groove 44 through the air duct 48. This increased air pressure within the lock body groove 44 pushes the lock cone 45 outward. As both sets of lock cones 45 move outward, they compress the spring 47 and simultaneously push the safety pin 46 into the lock body groove 41. Thus, the FTR lock body 12 is fixed in place by the safety pin 46 and the lock body groove 41, locking the FTR lock body 12 in that position. Furthermore, sealing rings are installed on the surfaces of both the lock head 25 and the lock cone 45 to improve airtightness.

[0039] The FTR lock body 12 can slide freely on the surface of the tractor 10, thus accommodating containers 1 of different sizes. When the container 1 is placed in position, the FTR lock body 12 will automatically lock in the corresponding position on the tractor 10, and the container corner fittings 11 will be locked under the action of the FTR lock body 12.

[0040] When unloading container 1, the crane operator lifts container 1 using a spreader. Container 1 causes the container corner fittings 11 on its inner wall to rise. After the status sensor 32 detects the change in the position of the lock plate 31, it controls the electromagnetic lock body 33 to be de-energized. The lock head 25 moves downward under the force of the compression spring 34. The lock head 25 causes the first inclined surface 26 to move downward in the opposite direction. The first inclined surface 26 drives the lock rod 23 to reset through the cooperation of the slide rail and the guide wheel 28, so that the lock rod 23 slides inward until it disengages from the corner fitting hole 21.

[0041] When unloading container 1, no manual operation is required from the operator. This ensures that the FTR lock body 12 and the container corner fitting 11 are separated, eliminating the possibility of hooking up and maximizing the safety of the lifting operation.

[0042] When the lock head 25 moves downward, the internal space of the lock head groove 24 increases, and the air pressure in the lock body groove 44 decreases, causing the safety pin 46 to reset and disengage, facilitating the next use of the FTR lock body 12.

[0043] The working principle of this invention is as follows: During operation, the crane operator uses a spreader to place the container 1 on top of the tractor 10. When the container 1 is in place, the locking plate 31 presses against the top of the FTR lock body 12. The status sensor 32 controls the electromagnetic lock body 33 to open. The lock head 25 will move upward in the lock head groove 24 under the magnetic attraction of the electromagnetic lock body 33. The lock head groove 24 will drive the two sets of first inclined surfaces 26 to move upward. The first inclined surfaces 26 drive the locking rod 23 to move through the second inclined surface 27 until the locking rod 23 moves into the corner fitting hole 21, thereby achieving the locking between the container 1 and the tractor 10.

[0044] In the description of this invention, 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, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An FTR lock anti-snagging device for a container used in hoisting operations, characterized in that, include: Container (1), container (1) is placed on tractor (10), and container corner fittings (11) are welded to the inner wall of container (1); The FTR lock body (12) is slidably connected to the surface of the tractor (10). The locking mechanism (2) is slidably connected inside the FTR lock body (12). The locking mechanism (2) is engaged inside the container corner fitting (11) to achieve locking between the container (1) and the tractor (10). Triggering mechanism (3), installed inside the FTR lock body (12), is slidably connected to the surface and locking mechanism (2) for use with the container (1) to lock and unlock the locking mechanism (2) and the container corner fitting (11); The fixed locking mechanism (4) is slidably connected to the surface of the tractor (10) and communicates with the triggering mechanism (3) inside the FTR lock body (12). When the FTR lock body (12) moves to the required working position, the triggering mechanism (3) will drive the fixed locking mechanism (4) to engage inside the tractor (10) under the action of the container (1) and lock the FTR lock body (12) in that position.

2. The FTR lock anti-snagging device for lifting containers according to claim 1, characterized in that, The locking mechanism (2) includes: Corner fitting holes (21) are provided on both sides of the container corner fitting (11); The locking bar groove (22) is horizontally opened inside the FTR lock body (12). The locking bar (23) is slidably connected inside the locking bar groove (22), and the end of the locking bar (23) is inserted into the corner fitting hole (21). A lock slot (24) is vertically opened inside the FTR lock body (12), and a lock head (25) is slidably connected inside it; The first inclined surface (26) is provided on the side of the lock head (25); The second inclined surface (27) is provided at the end of the locking bar (23), and the first inclined surface (26) and the second inclined surface (27) are slidably connected.

3. The FTR lock anti-snagging device for lifting containers according to claim 2, characterized in that, The surface of the second inclined plane (27) is rotatably connected to at least two sets of guide wheels (28), and the guide wheels (28) are rolledly connected to the surface of the first inclined plane (26).

4. The FTR lock anti-snagging device for lifting containers according to claim 2, characterized in that, The triggering mechanism (3) includes: The locking plate (31) is fixed to the inner wall of the container corner fitting (11). When the container (1) is placed, the locking plate (31) is pressed against the top of the FTR lock body (12). A status sensor (32) is mounted on top of the FTR lock body (12); The electromagnetic lock body (33) is fixed inside the lock head groove (24) and electrically connected to the status sensor (32). The end of the electromagnetic lock body (33) is connected to the side of the lock head (25) through the compression spring (34).

5. The FTR lock anti-snagging device for lifting containers according to claim 4, characterized in that, The locking mechanism (4) includes: The lock body (43) is fixed to the bottom of the FTR lock body (12) and has a lock body groove (44) inside; A lock body groove (41) is formed on the surface of the tractor (10), and the lock body (43) is slidably connected to the inside of the lock body groove (41). Safety pin holes (42) are formed on both sides of the lock body groove (41). The locking cone (45) is slidably connected inside the lock body groove (44), and the locking cone (45) is connected to the inner wall of the lock body groove (44) by a spring (47); The safety pin (46) is slidably connected inside the lock body (43), with one end fixed to the side of the lock cone (45) and the other end engaged inside the safety pin hole (42).

6. The FTR lock anti-snagging device for lifting containers according to claim 5, characterized in that, The inner side of the lock body groove (44) is connected to the inside of the lock head groove (24) through the air guide pipe (48).

7. The FTR lock anti-snagging device for lifting containers according to claim 5, characterized in that, The status sensor (32) is a pressure sensor.

8. The FTR lock anti-snagging device for lifting containers according to claim 5, characterized in that, The end of the safety pin (46) and the entrance of the safety pin hole (42) are both chamfered.

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