Quick locking device for container transport semi-trailer

Abstract

This utility model provides a quick locking device for container transport semi-trailers, relating to the field of semi-trailer technology. The utility model includes a platform with several rotatable driven wheels at its bottom end and two sets of hydraulic support legs at its bottom end. Locking devices are located at the four corners of the platform's outer surface. Each locking device includes a rectangular plate installed inside the platform. A shaft is rotatably connected to the outer surface of the rectangular plate, and a support rod is fixedly connected to the bottom end of the shaft. By setting up the locking device and limiting the angle between the slider and groove block on the outside of the support rod at the bottom end of the shaft, and by using an L-shaped block to limit the position of the slider, this utility model ensures that the locking block, after limiting the position of the locking frame on the platform, is less prone to accidental rotation. This improves the stability of limiting the container's position on the platform while quickly locking it in place.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, and in particular to a quick locking device for container transport semi-trailers. Background Technology

[0002] A container semi-trailer is a type of semi-trailer used to transport containers. The cargo is loaded inside the container, and then the container is lifted onto the semi-trailer's platform using hoisting equipment. The bottom four corners of the container are equipped with structures that can connect to locking devices on the semi-trailer.

[0003] When connecting a container to a semi-trailer, the four corner clips at the bottom of the container fit over the top of the semi-trailer's clips and push the clips to rotate by squeezing. After the clips enter under the clips, the clips rotate to restrict the position of the clips on the semi-trailer. However, since the clips are not locked, the clips may loosen when the semi-trailer bumps during travel, affecting the stability of the container's position on the semi-trailer. Utility Model Content

[0004] The purpose of this invention is to solve the problem that when the locking block is not locked, the position of the locking frame and the locking block may become loose when the semi-trailer is bumpy during travel, which affects the stability of the container's position on the semi-trailer. Therefore, a quick locking device for container transport semi-trailers is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick locking device for a container transport semi-trailer, comprising a platform, a plurality of rotatable driven wheels at the bottom end of the platform, two sets of hydraulic outriggers at the bottom end of the platform, a plurality of connecting parts fixedly connected to one side of the bottom end of the platform for connecting the platform to a tractor, a container at the top end of the platform, a locking frame fixedly connected to the four corners of the bottom end of the container, and a locking device at the four corners of the outer surface of the platform for locking the container in place on the platform.

[0006] Furthermore, the locking device includes a rectangular plate installed inside the vehicle panel. A shaft is rotatably connected to the outer surface of the rectangular plate. A locking block is fixedly connected to the top end of the shaft. The outer surface of the locking block is tapered. A first coil spring is provided on the outer surface of the shaft. The two ends of the first coil spring are fixedly connected to one side of the shaft and one side of the inner wall of the rectangular plate, respectively. A support rod is fixedly connected to the bottom end of the shaft. A slider is slidably connected to the outer surface of the support rod. A spring is provided on one side of the slider. The two ends of the spring are fixedly connected to one side of the slider and one side of the support rod, respectively. Grooves are fixedly connected to the four corners of the bottom end of the vehicle panel. A protrusion for inserting into the groove is provided on one side of the top end of the slider. A limit block is fixedly connected to the end of the support rod away from the shaft. A rotating shaft is rotatably connected to one side of the slider. A second coil spring is provided at one end of the rotating shaft. The two ends of the second coil spring are fixedly connected to one side of the rotating shaft and one side of the slider, respectively. An L-shaped block is fixedly connected to the outer surface of the rotating shaft.

[0007] Furthermore, the limiting block has an arc-shaped groove on the side away from the shaft, and a rubber strip is provided at the inner edge of the arc-shaped groove.

[0008] Furthermore, an auxiliary rod is fixedly connected to the top of the slider, and the outer surface of the auxiliary rod is U-shaped.

[0009] Furthermore, positioning rods are fixedly connected to both sides of the slider, and one side of the positioning rod slides on the outer surface of the support rod.

[0010] Furthermore, protective devices are provided at the four corners of the outer surface of the vehicle panel. The protective devices include protective boxes, with connecting rods fixedly connected to the top of the protective boxes. Two bolts are inserted into the end of the connecting rod away from the protective box. Several threaded holes are opened on the outer surface of the vehicle panel near the locking device, and the bolts are threadedly connected to the inner wall of the threaded holes.

[0011] Furthermore, the outer surface of the vehicle panel is provided with several limiting grooves, which are located at the threaded holes on the outer surface of the vehicle panel.

[0012] Furthermore, several protruding strips are fixedly connected to both sides of the outer surface of the protective box, and the protruding strips are linearly distributed on the outer surface of the protective box.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this utility model, by setting a locking device, limiting the angle between the slider and the groove block and the shaft and the vehicle board by setting the support rod at the bottom of the shaft, and limiting the position of the slider by the L-shaped block, the locking block limits the position of the locking frame on the vehicle board and makes it less likely to rotate accidentally. This improves the stability of limiting the position of the container on the vehicle board while quickly locking the position of the container on the vehicle board. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 A magnified three-dimensional structural diagram of point A;

[0017] Figure 3 This is a three-dimensional structural diagram of the vehicle body of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified three-dimensional structural diagram of part B;

[0019] Figure 5 This is a three-dimensional structural diagram of the rectangular plate of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the slider of this utility model;

[0021] Figure 7 This is a three-dimensional structural diagram of the protective box of this utility model.

[0022] Legend: 1. Vehicle panel; 2. Locking device; 21. Rectangular plate; 22. Shaft; 23. Locking block; 24. First coil spring; 25. Support rod; 26. Slider; 27. Groove block; 28. Spring; 29. ​​Rotating shaft; 210. Second coil spring; 211. L-shaped block; 212. Limiting block; 213. Auxiliary rod; 214. Positioning rod; 3. Protective device; 31. Threaded hole; 32. Connecting rod; 33. Bolt; 34. Protective box; 35. Raised strip; 36. Limiting groove; 4. Driven wheel; 5. Hydraulic outrigger; 6. Connecting piece; 7. Container; 8. Locking frame. Detailed Implementation

[0023] Example 1, such as Figure 1-5 As shown, a quick locking device for a container transport semi-trailer includes a platform 1, with several rotatable driven wheels 4 at the bottom end of the platform 1, two sets of hydraulic outriggers 5 at the bottom end of the platform 1, several connectors 6 fixedly connected to one side of the bottom end of the platform 1, the connectors 6 being used to connect the platform 1 to the tractor, a container 7 at the top end of the platform 1, and locking frames 8 fixedly connected to the four corners of the bottom end of the container 7, and locking devices 2 at the four corners of the outer surface of the platform 1 for locking the position of the container 7 on the platform 1.

[0024] Reference Figure 1-6As shown, in this embodiment: the locking device 2 includes a rectangular plate 21, which is installed inside the vehicle plate 1. A shaft 22 is rotatably connected to the outer surface of the rectangular plate 21. A locking block 23 is fixedly connected to the top of the shaft 22. The outer surface of the locking block 23 is tapered. A first coil spring 24 is provided on the outer surface of the shaft 22. The two ends of the first coil spring 24 are fixedly connected to one side of the shaft 22 and one side of the inner wall of the rectangular plate 21, respectively. A support rod 25 is fixedly connected to the bottom end of the shaft 22. A slider 26 is slidably connected to the outer surface of the support rod 25. A spring 28 is provided on one side of the slider 26. The two ends of the spring 28 are fixedly connected to one side of the slider 26 and one side of the support rod 25, respectively. Grooves 27 are fixedly connected to the four corners of the bottom end of the vehicle plate 1, and the top of the slider 26 is... A protrusion for inserting into the slot 27 is provided on the side. A limit block 212 is fixedly connected to the end of the support rod 25 away from the shaft 22. A rotating shaft 29 is rotatably connected to one side of the slider 26. A second coil spring 210 is provided at one end of the rotating shaft 29. The two ends of the second coil spring 210 are fixedly connected to one side of the rotating shaft 29 and one side of the slider 26, respectively. An L-shaped block 211 is fixedly connected to the outer surface of the rotating shaft 29. By setting the L-shaped block 211, when the container 7 is hoisted onto the platform 1, the two hydraulic outriggers 5 at the bottom of the platform 1 extend and support the bottom end against the ground at one end of the platform 1. The L-shaped block 211 is pulled on one side of each support rod 25 to control the slider 26 to move in the direction of the limit block 212 on the outer surface of the support rod 25 and stretch the spring 28 to make the slider 26 move. The protrusion on one side of the 6th side disengages from the groove 27, and then the L-shaped block 211 is pulled to control the L-shaped block 211 to rotate upward through the pivot 29, causing the second coil spring 210 to deform. The end of the L-shaped block 211 away from the pivot 29 is then locked onto the top of the limiting block 212. Subsequently, the various locking frames 8 at the bottom of the container 7 are aligned with the positions of the locking blocks 23 on the vehicle platform 1. The container 7 is then lowered vertically, and the locking frames 8 are fitted onto the top of the locking blocks 23. When the bottom of the locking frame 8 contacts the top of the locking block 23, it will squeeze the locking block 23, causing the locking block 23 to rotate through the shaft 22 and deform the first coil spring 24. After the bottom of the locking frame 8 contacts the surface of the vehicle platform 1, the first coil spring 24 returns to its original shape, which will drive the shaft 22 and the locking block 23 to rotate in the original direction, causing the locking block 23 to lock inside the locking frame 8. Then, by pushing the L-shaped block 211 away from the top of the limiting block 212 on one side of each support rod 25, the second coil spring 210 and spring 28 return to their original state, which will respectively drive the L-shaped block 211 to rotate downward and the slider 26 to move towards the shaft 22, so that the L-shaped block 211 is located between the slider 26 and the limiting block 212, and the protrusion on one side of the slider 26 is inserted into the groove block 27, which limits the angle between the shaft 22 and the vehicle plate 1. The L-shaped block 211 is locked between the slider 26 and the limiting block 212, so that the slider 26 is not easily moved due to the shaking of the vehicle plate 1. After the container 7 is fixed on the vehicle plate 1, the vehicle plate 1 is connected to the tractor through the connector 6 (the connection between the semi-trailer and the tractor is a well-known technology to those skilled in the art, and will not be described in detail here).Then, the hydraulic outrigger 5 retracts. A locking device 2 is installed, and the angle between the slider 26 and the groove block 27 on the outside of the support rod 25 at the bottom of the shaft 22, and the shaft 22 and the vehicle platform 1 is limited. The L-shaped block 211 further restricts the position of the slider 26. This ensures that the locking block 23, after restricting the position of the locking frame 8 on the vehicle platform 1, is less likely to rotate accidentally. This quickly locks the container 7 on the vehicle platform 1 while improving the stability of restricting its position.

[0025] Reference Figure 2-6 As shown in this embodiment: an arc-shaped groove is provided on the side of the limiting block 212 away from the shaft 22, and a rubber strip is provided at the inner edge of the arc-shaped groove. By providing the arc-shaped groove, one end of the L-shaped block 211 can be more easily locked onto the outer surface of the limiting block 212. The rubber strip can increase the friction between one end of the L-shaped block 211 and the surface of the limiting block 212, making it less likely for the L-shaped block 211 to slide when locked onto the outer surface of the limiting block 212. An auxiliary rod 213 is fixedly connected to the top of the slider 26. The outer surface of the auxiliary rod 213 is U-shaped. Holding the outer surface of the U-shaped auxiliary rod 213 makes it easier to pull the slider 26 and control the movement position of the slider 26.

[0026] Reference Figure 2-6 As shown in this embodiment: positioning rods 214 are fixedly connected to both sides of the slider 26. One side of the positioning rod 214 slides on the outer surface of the support rod 25. When the slider 26 is pulled to move, the side of the two positioning rods 214 that are close to each other will slide on both sides of the outer surface of the support rod 25, which further restricts the angle between the slider 26 and the positioning rod 214 and prevents the angle of the slider 26 from deflecting.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 as well as Figure 7As shown in this embodiment: protective devices 3 are provided at the four corners of the outer surface of the vehicle panel 1. The protective devices 3 include protective boxes 34. A connecting rod 32 is fixedly connected to the top of the protective box 34. Two bolts 33 are inserted into the end of the connecting rod 32 away from the protective box 34. Several threaded holes 31 are opened on the outer surface of the vehicle panel 1 near the locking device 2. The bolts 33 are threadedly connected to the inner wall of the threaded holes 31. After the container 7 is fixed to the vehicle panel 1 by the locking device 2, one end of the connecting rod 32 at the top of the protective box 34 can be attached to the outer surface of the vehicle panel 1 and aligned with the position of the threaded hole 31 on the outer surface of the vehicle panel 1 on one side of each locking device 2. Then, the bolts 33 are inserted into the threaded hole 31 through one end of the connecting rod 32. The bolts 33 are rotated to make the bolts 33 threadedly connected to the inner wall of the threaded hole 31, thus fixing the connecting rod 32 and the protective box 34 to the outer surface of the vehicle panel 1. The protective box 34 covers most of the structure of the locking device 2 exposed outside the vehicle panel 1 for protection, so as to prevent the structure of the locking device 2 from being affected by collisions and thus affecting its performance.

[0028] Reference Figure 2 , Figure 3 and Figure 4 as well as Figure 7 As shown in this embodiment: several limiting grooves 36 are provided on the outer surface of the vehicle plate 1. The limiting grooves 36 are located at the threaded holes 31 on the outer surface of the vehicle plate 1. When one end of the connecting rod 32 is attached to the outer surface of the vehicle plate 1, the outer surface of the connecting rod 32 is locked in the limiting groove 36, which can quickly position the connecting rod 32 and the threaded holes 31 on the surface of the vehicle plate 1, making it convenient to install the connecting rod 32. Several protrusions 35 are fixedly connected to both sides of the outer surface of the protective box 34. The protrusions 35 are linearly distributed on the outer surface of the protective box 34. Holding the several protrusions 35 on both sides of the outer surface of the protective box 34 makes it easier to hold the protective box 34 for disassembly and assembly.

[0029] Working principle: When the container 7 is hoisted onto the platform 1, the two hydraulic outriggers 5 at the bottom of the platform 1 extend and support one end of the platform 1 against the ground. Each outrigger 25 pulls on one side of the L-shaped block 211, controlling the slider 26 to move towards the limiting block 212 on the outer surface of the outrigger 25 and stretching the spring 28, causing the protrusion on one side of the slider 26 to disengage from the groove 27. Then, pulling the L-shaped block 211 again controls its upward rotation via the pivot 29, causing the second coil spring 210 to deform and locking the end of the L-shaped block 211 away from the pivot 29 into the limiting block 212. At the top, align the various locking frames 8 at the bottom of container 7 with the positions of the locking blocks 23 on the vehicle platform 1. Lower container 7 vertically so that the locking frames 8 fit over the top of the locking blocks 23. When the bottom of the locking frame 8 contacts the top of the locking block 23, it compresses the locking block 23, causing it to rotate via the shaft 22 and deform the first coil spring 24. After the bottom of the locking frame 8 contacts the surface of the vehicle platform 1, the first coil spring 24 returns to its original shape, driving the shaft 22 and the locking block 23 to rotate in the original direction, causing the locking block 23 to lock inside the locking frame 8. At this point, push the L-shaped block 211 off the limit position on one side of each support rod 25. At the top of block 212, the second coil spring 210 and spring 28 return to their original positions, which will respectively drive the L-shaped block 211 to rotate downwards and the slider 26 to move towards the shaft 22, so that the L-shaped block 211 is located between the slider 26 and the limiting block 212, and the protrusion on one side of the slider 26 is inserted into the groove block 27, which limits the angle between the shaft 22 and the vehicle plate 1. The L-shaped block 211 is locked between the slider 26 and the limiting block 212, so that the slider 26 is not easy to move due to the shaking of the vehicle plate 1. After the container 7 is fixed on the vehicle plate 1, the connecting rod at the top of the protective box 34 is locked on one side of each locking device 2. One end of the rod 32 is attached to the outer surface of the vehicle panel 1 and aligned with the threaded hole 31 on the outer surface of the vehicle panel 1. Then, a bolt 33 is inserted through one end of the connecting rod 32 into the threaded hole 31. The bolt 33 is rotated to make the bolt 33 threadedly connected to the inner wall of the threaded hole 31, thus fixing the connecting rod 32 and the protective box 34 to the outer surface of the vehicle panel 1. The protective box 34 covers and protects most of the structure of the locking device 2 exposed outside the vehicle panel 1. Finally, the vehicle panel 1 is connected to the tractor through the connector 6 (the connection between the semi-trailer and the tractor is a well-known technology in the art and will not be described in detail here). Then, the hydraulic outrigger 5 is operated to retract.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A quick locking device for container transport semi-trailer, comprising a vehicle plate (1), characterized in that: The bottom end of the vehicle platform (1) is provided with several rotatable driven wheels (4), and the bottom end of the vehicle platform (1) is provided with two sets of hydraulic outriggers (5). Several connectors (6) are fixedly connected to one side of the bottom end of the vehicle platform (1). The connectors (6) are used to connect the vehicle platform (1) to the tractor. The top end of the vehicle platform (1) is provided with a container (7). The bottom four corners of the container (7) are fixedly connected with clip frames (8). The four corners of the outer surface of the vehicle platform (1) are provided with clips that can hold the container. (7) A locking device (2) for locking on the vehicle board (1); the locking device (2) includes a rectangular plate (21), which is installed inside the vehicle board (1). A shaft (22) is rotatably connected to the outer surface of the rectangular plate (21). A locking block (23) is fixedly connected to the top of the shaft (22). The outer surface of the locking block (23) is tapered. A first coil spring (24) is provided on the outer surface of the shaft (22). The two ends of the first coil spring (24) are respectively connected to the shaft. One side of the rod (22) is fixedly connected to one side of the inner wall of the rectangular plate (21). A support rod (25) is fixedly connected to the bottom end of the shaft (22). A slider (26) is slidably connected to the outer surface of the support rod (25). A spring (28) is provided on one side of the slider (26). The two ends of the spring (28) are fixedly connected to one side of the slider (26) and one side of the support rod (25), respectively. A groove block (27) is fixedly connected to the four corners of the bottom end of the vehicle plate (1). The top of the slider (26) is... The side is provided with a protrusion for insertion into the slot (27). The end of the support rod (25) away from the shaft (22) is fixedly connected to a limit block (212). The side of the slider (26) is rotatably connected to a rotating shaft (29). One end of the rotating shaft (29) is provided with a second coil spring (210). The two ends of the second coil spring (210) are fixedly connected to one side of the rotating shaft (29) and one side of the slider (26), respectively. An L-shaped block (211) is fixedly connected to the outer surface of the rotating shaft (29).

2. The quick-locking device for a container transport semi-trailer according to claim 1, characterized in that: The limiting block (212) has an arc-shaped groove on the side away from the shaft (22), and a rubber strip is provided at the inner edge of the arc-shaped groove.

3. A quick-locking device for a container transport semi-trailer according to claim 2, characterized in that: An auxiliary rod (213) is fixedly connected to the top of the slider (26), and the outer surface of the auxiliary rod (213) is U-shaped.

4. A quick-locking device for a container transport semi-trailer according to claim 3, characterized in that: Positioning rods (214) are fixedly connected to both sides of the slider (26), and one side of the positioning rod (214) slides on the outer surface of the support rod (25).

5. A quick-locking device for a container transport semi-trailer according to claim 4, characterized in that: Protective devices (3) are provided at the four corners of the outer surface of the vehicle plate (1). The protective device (3) includes a protective box (34). A connecting rod (32) is fixedly connected to the top of the protective box (34). Two bolts (33) are inserted at the end of the connecting rod (32) away from the protective box (34). Several threaded holes (31) are opened on the outer surface of the vehicle plate (1) near the locking device (2). The bolts (33) are threadedly connected to the inner wall of the threaded holes (31).

6. A quick-locking device for a container transport semi-trailer according to claim 5, characterized in that: The outer surface of the vehicle panel (1) is provided with several limiting grooves (36), and the limiting grooves (36) are located at the threaded holes (31) on the outer surface of the vehicle panel (1).

7. A quick-locking device for a container transport semi-trailer according to claim 6, characterized in that: Several protrusions (35) are fixedly connected to both sides of the outer surface of the protective box (34), and the protrusions (35) are linearly distributed on the outer surface of the protective box (34).

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