Container F-TR lock anti-papelock protection device

Abstract

This utility model relates to the field of container F-TR lock protection technology and discloses a container F-TR lock anti-padding protection device, including a container body and a flatcar. The upper end of the flatcar is provided with four F-TR locks, which are respectively located at the four bottom corners of the container body. The bottom of the flatcar is evenly provided with multiple mounting slots and concealed slots. The mounting slots and concealed slots are located at the bottom of the F-TR locks, with the mounting slots located below the concealed slots. By setting an electric telescopic cylinder to drive the base plate, the F-TR locks are moved up and down along the slide rail in the concealed slots, realizing the automatic switching between the working state and the storage state of the F-TR locks. The extension and retraction of the locks can be completed without manual operation, which not only reduces the labor intensity of operators, but also significantly shortens the preparation time for container loading and unloading operations, improves the operational efficiency of railway container transportation, and meets the needs of intelligent transportation.

Description

Technical Field

[0001] This utility model relates to the field of container F-TR lock protection technology, and in particular to a container F-TR lock anti-padding protection device. Background Technology

[0002] In the container rail transport system, the F-TR lock, as a core load-bearing component connecting containers and flatcars, directly determines the safety baseline and efficiency benchmark of cargo transportation. This lock, through its unique "eagle head" structure, precisely engages with the locking holes of the standardized corner fittings at the four corners of the container's bottom. When the container is hoisted to the pre-set position on the flatcar, the eagle head of the F-TR lock precisely engages along the guide ramp on the inner wall of the locking hole. Through the rigid engagement of the mechanical structure, it restricts the container's displacement in three dimensions, thus establishing a rigid connection between the container and the flatcar. This ensures that the container maintains a stable posture during long-distance, multi-condition rail transport, preventing cargo shifting or container detachment due to bumps and vibrations. When the F-TR lock cannot unlock smoothly due to corrosion, jamming, or other problems, the eagle head remains partially or completely stuck in the locking holes of the container corner fittings. This can cause the container to tilt and sway, or even lead to hoisting imbalance, container falling, and other safety accidents, posing a serious threat to container hoisting safety.

[0003] In existing technologies, to ensure the service life of F-TR locks and prevent padlocks, most F-TR locks on flatcars are designed with a flip-up structure for protection. This allows them to be stored inside the flatcar when not in use. However, this flipping operation is largely manual. When loading or unloading containers, operators must manually flip the F-TR lock from its stored position to its working position, or manually flip it back to its original position after the operation. This not only increases labor intensity but also prolongs loading and unloading time, reducing logistics efficiency. Furthermore, gaps inevitably exist at the rotating joints of the flip-up structure. In severe weather conditions such as rain or snow, moisture can easily seep into the lock body and rotating shaft through these gaps. Over time, this can lead to corrosion and jamming of the rotating shaft, making it difficult for the F-TR lock to flip properly. Simultaneously, the moving parts of the lock body may also become stuck due to corrosion, and in severe cases, may even be unable to complete the locking or unlocking action, thus causing a padlock phenomenon. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a container F-TR lock anti-padding protection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a container F-TR lock anti-padding protection device, comprising a container body and a flatcar, wherein four F-TR locks are provided on the upper end of the flatcar, and the F-TR locks are respectively located at the four bottom corners of the container body;

[0006] The flatbed has multiple mounting slots and concealed slots evenly distributed on its bottom. The mounting slots and concealed slots are located at the bottom of the F-TR lock, with the mounting slots located below the concealed slots. The mounting slots and concealed slots are interconnected. Each mounting slot is equipped with an electric telescopic cylinder. The output end of the electric telescopic cylinder extends into the concealed slot and is fixedly mounted on a base plate. An L-shaped fixing plate is fixedly mounted on the upper end of the base plate. The F-TR lock is fixedly mounted on the bottom of the L-shaped fixing plate. A sliding groove is provided on the upper side wall of the concealed slot, and a movable baffle is provided inside the sliding groove.

[0007] Preferably, the bottom of the movable baffle is sloping, and the upper end of the L-shaped fixing plate is provided with a groove, the inside of which is provided with a roller.

[0008] Preferably, pins are fixedly installed at both ends of the roller, and the two sides of the roller are rotatably installed inside the groove through the pins. The upper end of the roller is in contact with the bottom inclined surface of the movable baffle.

[0009] Preferably, the upper end of the hidden groove extends through the top of the flatcar, and slide rails are symmetrically provided on both sides of the hidden groove. Limiting protrusions are fixedly installed at both ends of the base plate.

[0010] Preferably, the two sides of the substrate are slidably mounted inside the slide rail by limiting protrusions, the size of the movable baffle is adapted to the upper end of the hidden groove, and a limiting plate is fixedly installed at one end of the movable baffle inside the slide groove.

[0011] Preferably, two compression springs are fixedly installed on the side of the limiting plate away from the movable baffle, and the other ends of the two compression springs are fixedly installed on the inner end of the slide groove.

[0012] Preferably, the container body has lock holes at all four corners of its bottom, and the eagle head bars of the four F-TR locks correspond to the lock holes, with the end edges of the eagle head bars rounded with a radius of 1mm-2mm.

[0013] Preferably, the contact between the roller and the bottom inclined surface of the movable baffle is a line contact, and when the roller rolls, the angle between its axis and the bottom inclined surface of the movable baffle remains unchanged, and the rotation direction of the roller is adapted to the extension and retraction direction of the movable baffle.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. By setting up an electric telescopic cylinder to drive the base plate to move the F-TR lock along the slide rail in the hidden groove, the automatic switching between the working state and the storage state of the F-TR lock is realized. The extension and retraction of the lock can be completed without manual operation, which not only reduces the labor intensity of operators, but also significantly shortens the preparation time for container loading and unloading operations, improves the operational efficiency of railway container transportation, and meets the needs of intelligent transportation.

[0016] 2. By setting up a linkage between the movable baffle, compression spring, and roller, when the electric telescopic cylinder drives the F-TR lock to rise, the roller on the L-shaped fixed plate rolls along the bottom slope of the movable baffle, pushing the movable baffle to retract inward along the slide groove. The compression spring is compressed, opening the upper opening of the hidden groove, ensuring that the F-TR lock extends smoothly to the working position. When the F-TR lock retracts into the hidden groove, the compression spring releases its elasticity, pushing the movable baffle to reset and closing the upper opening of the hidden groove. This effectively prevents rainwater, sand, and other impurities from entering the hidden groove, avoiding rust and jamming caused by external environmental erosion, reducing the risk of "padlock" phenomena, and ensuring the long-term stable operation of the lock.

[0017] 3. By setting the roller on the L-shaped fixed plate to form a line contact with the bottom slope of the movable baffle, when the F-TR lock moves up and down, the roller rolls along the slope, converting the vertical movement of the F-TR lock into the lateral extension and retraction movement of the movable baffle. Compared with sliding friction, rolling friction has less friction, reducing wear between the movable baffle and the roller, lowering the wear rate of components, and extending the overall service life of the device. At the same time, the line contact ensures smoother force transmission, making the opening and closing action of the movable baffle smoother and improving the reliability of the device operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall front-end cross-sectional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the side sectional view of the flatcar of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the upper structure of the substrate of this utility model.

[0023] Figure label:

[0024] 1. Container body; 101. Lockhole; 102. Flatcar; 103. F-TR lock;

[0025] 2. Mounting slot; 201. Concealed slot; 202. Electric telescopic cylinder; 203. Slide rail;

[0026] 3. Base plate; 301. Limiting protrusion; 302. L-shaped fixing plate; 303. Groove; 304. Roller; 305. Pin;

[0027] 4. Slide groove; 401. Movable baffle; 402. Limiting plate; 403. Compression spring. Detailed Implementation

[0028] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0029] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0030] Example: Reference Figures 1-5 The container F-TR lock anti-padding protection device includes a container body 1 and a flatcar 102. Four F-TR locks 103 are installed on the upper end of the flatcar 102. The F-TR locks 103 are located at the four bottom corners of the container body 1.

[0031] The bottom of the flatbed 102 is evenly provided with multiple mounting slots 2 and hidden slots 201. The mounting slots 2 and hidden slots 201 are located at the bottom of the F-TR lock 103, and the mounting slots 2 are located below the hidden slots 201. The mounting slots 2 and hidden slots 201 are interconnected. Each mounting slot 2 is equipped with an electric telescopic cylinder 202. The output end of the electric telescopic cylinder 202 extends to the hidden slot 201 and is fixedly mounted on a base plate 3. An L-shaped fixing plate 302 is fixedly mounted on the upper end of the base plate 3. The F-TR lock 103 is fixedly mounted on the bottom of the L-shaped fixing plate 302. A sliding groove 4 is provided on the upper side wall of the hidden slot 201. A movable baffle 401 is provided inside the sliding groove 4.

[0032] Specifically: In actual use, the electric telescopic cylinder 202 drives the base plate 3 to move vertically along the slide rails 203 on both sides of the hidden groove 201, providing driving force for the state switching of the lock. The roller 304 is rotatably installed in the groove 303 through the pin 305, which can convert the vertical movement of the L-shaped fixed plate 302 into a lateral thrust on the movable baffle 401. At the same time, its own rolling characteristics reduce the frictional resistance with the inclined surface of the baffle. Under the alternating action of the thrust of the roller 304 and the elastic force of the compression spring 403, the movable baffle 401 moves laterally along the slide groove 4 to realize the opening and closing of the hidden groove 201, thus completing the protection and avoidance of the lock. The compression spring 403 is connected to the limit plate 402, which stores elastic potential energy when the movable baffle 401 retracts. After the lock retracts, the elastic force is released to push the baffle to reset, ensuring the sealing effect of the hidden groove 201.

[0033] When it is necessary to fix the container body 1, the output end of the electric telescopic cylinder 202 extends and pushes the base plate 3 to rise. The base plate 3 drives the L-shaped fixing plate 302 and the F-TR lock 103 to move upward synchronously. At this time, the roller 304 rises with the fixing plate and contacts the bottom inclined surface of the movable baffle 401. During the continuous rising process, the roller 304 rolls along the inclined surface and generates a lateral thrust on the baffle, forcing the movable baffle 401 to compress the spring 403 along the slide groove 4 and retract. The opening of the hidden groove 201 gradually opens until the F-TR lock 103 extends to the working position and locks with the locking hole 101 of the container body 1. When the container body 1 is unloaded, the output end of the electric telescopic cylinder 202 retracts and drives the base plate 3 and the lock to descend. The roller 304 moves down with the fixing plate, and the thrust on the baffle gradually decreases. The compression spring 403 releases its elasticity and pushes the movable baffle 401 to extend until it completely covers the opening of the hidden groove 201, thus achieving a sealed protection for the lock. The entire process, through the coordinated action of various components, achieves precise linkage between the lifting of the lock and the opening and closing of the baffle, ensuring the stable operation of the device.

[0034] The bottom of the movable baffle 401 is sloping, and the upper end of the L-shaped fixed plate 302 is provided with a groove 303. A roller 304 is provided inside the groove 303. Pins 305 are fixedly installed at both ends of the roller 304. The two sides of the roller 304 are rotatably installed inside the groove 303 through the pins 305. The upper end of the roller 304 is in contact with the bottom sloping surface of the movable baffle 401.

[0035] Specifically: The sloping design at the bottom of the movable baffle 401 provides a suitable contact trajectory for the rolling of the roller 304. The angle of its slope matches the movement path of the roller 304, ensuring that the roller 304 can slide smoothly along the slope when it rises and falls with the L-shaped fixed plate 302, converting the vertical force into a lateral force that pushes the movable baffle 401 to extend and retract. The roller 304 converts the vertical movement of the L-shaped fixed plate 302 into a thrust on the movable baffle 401 through its own rotation. Its cylindrical structure makes the contact parts form line contact, reducing frictional resistance during the movement and ensuring effective force transmission.

[0036] The upper end of the hidden groove 201 extends through the top of the flat car 102. Slide rails 203 are symmetrically provided on both sides of the hidden groove 201. Limiting protrusions 301 are fixedly installed at both ends of the base plate 3. The two sides of the base plate 3 are slidably installed inside the slide rails 203 through the limiting protrusions 301. The size of the movable baffle 401 is adapted to the upper end of the hidden groove 201. A limiting plate 402 is fixedly installed at one end of the movable baffle 401 inside the slide 4. Two compression springs 403 are fixedly installed on the side of the limiting plate 402 away from the movable baffle 401. The other ends of the two compression springs 403 are fixedly installed at the inner end of the slide 4.

[0037] Specifically: the slide rail 203 and the limiting protrusions 301 at both ends of the base plate 3 form a sliding fit. By moving the protrusions along the slide rail 203 in a directional manner, the movement trajectory of the base plate 3 is restricted, ensuring that the F-TR lock 103 does not deviate during the lifting process, and limiting the lifting height to ensure its alignment accuracy with the container lock hole 101.

[0038] The size of the movable baffle 401 is adapted to the upper end of the hidden groove 201 so that it can just cover the groove opening and achieve sealing protection. When the movable baffle 401 retracts, the limiting plate 402 compresses the spring to store force. When the lock retracts, the spring releases its elastic force to push the limiting plate 402, which drives the movable baffle 401 to reset and close the groove opening. This structure realizes the linkage protection between the baffle and the lock.

[0039] Lock holes 101 are provided at the four corners of the bottom of the container body 1. The eagle head rods of the four F-TR locks 103 correspond to the lock holes 101, and the end edges of the eagle head rods are rounded with a radius of 1mm-2mm. The contact between the roller 304 and the bottom slope of the movable baffle 401 is a line contact. When the roller 304 rolls, the angle between its axis and the bottom slope of the movable baffle 401 remains unchanged. The rotation direction of the roller 304 is adapted to the extension and retraction direction of the movable baffle 401.

[0040] Specifically, the lock holes 101 at the four corners of the bottom of container body 1 provide precise locking interfaces for the eagle head bar of F-TR lock 103, ensuring accurate engagement with the lock when container body 1 is positioned, achieving stable locking. Simultaneously, the rounded corners reduce rigid collisions and friction between the eagle head bar and the edge of the lock hole 101 during container positioning, preventing wear due to hard contact and reducing the risk of jamming, thus making the locking process smoother.

[0041] The working principle of this utility model is as follows: When it is necessary to hoist the container body 1 onto the flat car 102 for fixing, the electric telescopic cylinder 202 in the mounting slot 2 is activated. The output end of the electric telescopic cylinder 202 extends and pushes the base plate 3 to slide upward along the slide rails 203 on both sides of the hidden slot 201. The base plate 3 drives the L-shaped fixing plate 302 and the F-TR lock 103 fixed at its bottom to rise synchronously.

[0042] During this process, the roller 304 in the groove 303 at the upper end of the L-shaped fixing plate 302 rises with the fixing plate, contacts the inclined surface at the bottom of the movable baffle 401 and rolls upward along the inclined surface. The roller 304 maintains contact with the inclined surface at the bottom of the movable baffle 401, while the movable baffle 401 is laterally positioned by the slide groove 4, thereby generating a lateral thrust, forcing the movable baffle 401 to retract into the flatcar 102 along the slide groove 4. At the same time, the limiting plate 402 at one end of the movable baffle 401 squeezes and compresses the spring 403, causing the upper opening of the hidden groove 201 to gradually open until the F-TR lock 103 is fully extended out of the hidden groove 201 and reaches the working position. At this time, the eagle head bar of the F-TR lock 103 is precisely aligned with the lock holes 101 at the four corners of the bottom of the container body 1. After the container body 1 is in place, the eagle head bar is inserted into the lock hole 101 to complete the locking.

[0043] When container body 1 needs to be unloaded, the F-TR lock 103 is manually operated to unlock first. Then, the output end of the electric telescopic cylinder 202 retracts, causing the base plate 3, L-shaped fixing plate 302, and F-TR lock 103 to fall down along the slide rail 203 into the hidden groove 201. As the L-shaped fixing plate 302 descends to a certain position, the bottom slope of the movable baffle 401 contacts the roller 304. As it continues to descend, the contact pressure of the bottom slope of the movable baffle 401 gradually decreases. The compression spring 403 releases its elastic force and pushes the limit plate 402, causing the movable baffle 401 to extend outward along the slide rail 4 until the movable baffle 401 completely covers the upper opening of the hidden groove 201. At this time, the roller 304 descends to its initial position with the fixing plate, and the movable baffle 401 completely covers the opening of the hidden groove 201, achieving a sealed protection for the F-TR lock 103 inside the hidden groove 201.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A container F-TR lock anti-hanging lock protection device, comprising a container body (1) and a flat car (102), characterized in that: The flatcar (102) is equipped with four F-TR locks (103) at its upper end, and the F-TR locks (103) are located at the four bottom corners of the container body (1); The flatcar (102) has a plurality of mounting slots (2) and hidden slots (201) evenly distributed on its bottom. The mounting slots (2) and hidden slots (201) are located at the bottom of the F-TR lock (103) and the mounting slots (2) are located below the hidden slots (201). The mounting slots (2) and hidden slots (201) are interconnected. An electric telescopic cylinder (202) is installed inside each mounting slot (2). The output end of the electric telescopic cylinder (202) extends to the hidden slot (201) and is fixedly installed on a base plate (3). An L-shaped fixing plate (302) is fixedly installed on the upper end of the base plate (3). The F-TR lock is fixedly installed on the bottom of the L-shaped fixing plate (302). A sliding groove (4) is provided on the upper side wall of the hidden slot (201). A movable baffle (401) is provided inside the sliding groove (4).

2. The container F-TR lock anti-padding protection device according to claim 1, characterized in that: The bottom of the movable baffle (401) is sloping, and the upper end of the L-shaped fixed plate (302) is provided with a groove (303), and a roller (304) is provided inside the groove (303).

3. The container F-TR lock anti-padding protection device according to claim 2, characterized in that: Both ends of the roller (304) are fixedly installed with pins (305). The two sides of the roller (304) are rotatably installed inside the groove (303) through the pins (305). The upper end of the roller (304) is in contact with the bottom slope of the movable baffle (401).

4. The container F-TR lock anti-padding protection device according to claim 1, characterized in that: The upper end of the hidden groove (201) extends through the top of the flat car (102), and slide rails (203) are symmetrically provided on both sides of the hidden groove (201). Limiting protrusions (301) are fixedly installed at both ends of the base plate (3).

5. The anti-padding protection device for container F-TR locks according to claim 1, characterized in that: The two sides of the substrate (3) are slidably installed inside the slide rail (203) by limiting protrusions (301). The size of the movable baffle (401) is adapted to the upper end of the hidden groove (201). A limiting plate (402) is fixedly installed at one end of the movable baffle (401) inside the slide groove (4).

6. The container F-TR lock anti-padding protection device according to claim 5, characterized in that: Two compression springs (403) are fixedly installed on the side of the limiting plate (402) away from the movable baffle (401), and the other ends of the two compression springs (403) are fixedly installed on the inner end of the slide groove (4).

7. The anti-padding protection device for container F-TR locks according to claim 1, characterized in that: The container body (1) has lock holes (101) at the four corners of its bottom. The eagle head rods of the four F-TR locks (103) correspond to the lock holes (101), and the end edges of the eagle head rods are rounded with a radius of 1mm-2mm.

8. The anti-padding protection device for container F-TR locks according to claim 2, characterized in that: The contact between the roller (304) and the bottom inclined surface of the movable baffle (401) is a line contact, and when the roller (304) rolls, the angle between its axis and the bottom inclined surface of the movable baffle (401) remains unchanged. The rotation direction of the roller (304) is adapted to the extension and retraction direction of the movable baffle (401).

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