Container transport semi-trailer and its clamping device

Abstract

The present invention provides a container transportation semi-trailer and its clamping device. The clamping device includes an upper pressing component, a lower pressing component, and a locking member. The upper pressing component includes two upper pressing members, and the lower pressing component includes two lower pressing members. The locking member passes through the relative parts of the upper pressing member and the lower pressing member to lock them to each other. The container can be stably fixed on the vehicle frame through the clamping device. The overall structure of this clamping device is simple, convenient to use, and will not damage the structures of the container and the vehicle frame. The clamping device can tightly fix the container to the vehicle frame. On the one hand, it can improve the connection performance of the whole vehicle, avoid the relative sliding between the container and the vehicle frame when the vehicle makes a sharp turn, and ensure the safety of vehicle driving. On the other hand, it can strengthen the fixed connection between the container and the vehicle frame, help bear the load transmitted from the container to the vehicle frame, and effectively avoid the deformation of the container body and the vehicle frame due to excessive force.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly to a container transport semi-trailer and its clamping device. Background Art

[0002] Currently, large-capacity land-use containers are generally used in e-commerce logistics, and are equipped with special container transport vehicles. Usually, the container and the semi-trailer are used together, and the container body and the semi-trailer are not separated during normal use, and they are only separated during maintenance and annual inspection. In order to reduce the overall weight of the vehicle and the container body, both the container body and the semi-trailer adopt lightweight designs.

[0003] For existing container transport semi-trailers, the container body and the semi-trailer are relatively independent. Except for the front and rear standard container corner fittings being fixed, there is no fixed connection between the container and the semi-trailer girder. When turning a sharp bend during driving, it is very easy for the bottom of the container body to slide relative to the semi-trailer frame. In addition, due to the lack of a fixed connection between the container and the semi-trailer girder, the vertical load received by the container will directly be transmitted to the semi-trailer girder through the bottom plate, causing deformation of the container body and the frame girder. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the existing container transport semi-trailer that there is a lack of a fixed connection between the container and the semi-trailer frame, resulting in the container body being prone to sliding on the frame and the container body and the frame girder being deformed.

[0005] To solve the above technical problems, the present invention provides a clamping device for fixing the bottom cross beam of a container to the longitudinal beam of a frame. The bottom cross beam and the longitudinal beam are vertically abutted against each other, and the cross sections of both the bottom cross beam and the longitudinal beam are in the shape of an I-beam. The clamping device includes: an upper pressing component, a lower pressing component, and a locking member; the upper pressing component includes two upper pressing members, and the two upper pressing members are arranged on both sides of the web of the bottom cross beam; the upper pressing member fits on the upper surface of the lower flange of the bottom cross beam in the width direction and extends beyond the edge of the lower flange of the bottom cross beam; both ends of the upper pressing member in the length direction extend beyond both sides of the upper flange of the longitudinal beam; the lower pressing component includes two lower pressing members, and the two lower pressing members are arranged on both sides of the web of the longitudinal beam; the lower pressing member fits on the lower surface of the upper flange of the longitudinal beam in the width direction and extends beyond the edge of the upper flange of the longitudinal beam; both ends of the lower pressing member in the length direction extend beyond both sides of the lower flange of the bottom cross beam and are respectively opposite to the two upper pressing members; the locking member is inserted through the opposite parts of the upper pressing member and the lower pressing member to lock the upper pressing component and the lower pressing component to each other.

[0006] Preferably, the upper pressing member includes an upper pressing main body and an upper pressing portion, and the upper pressing portion extends downward from one side of the lower surface of the upper pressing main body close to its width direction; a part of the lower surface of the upper pressing main body close to the other side of its width direction is used for fitting the upper surface of the lower flange of the bottom cross beam; the lower surface of the upper pressing portion protrudes from the lower surface of the upper pressing main body, and the lower surface of the upper pressing portion is used for fitting the upper surface of the upper flange of the longitudinal beam.

[0007] Preferably, the upper pressing main body includes an upper mounting portion and an upper fitting portion, and the upper fitting portion and the upper pressing portion are respectively located on both sides of the upper mounting portion in the width direction; both ends of the upper mounting portion in the length direction extend outward beyond both sides of the upper flange of the longitudinal beam, and mounting holes for the locking member to pass through are provided at the portions of the ends of the upper mounting portion that extend beyond the upper flange of the longitudinal beam; the lower surface of the upper fitting portion is used for fitting the upper surface of the lower flange of the bottom cross beam.

[0008] Preferably, the lower pressing member includes a lower pressing main body and a lower abutting portion, and the lower abutting portion extends upward from one side of the upper surface of the lower pressing main body close to the width direction; a part of the upper surface of the lower pressing main body close to the other side of its width direction is used for fitting the lower surface of the upper flange of the longitudinal beam; the upper surface of the lower abutting portion protrudes from the upper surface of the lower pressing main body, and the upper surface of the lower abutting portion is used for fitting the lower surface of the upper pressing member.

[0009] Preferably, there are two lower abutting portions, and the two lower abutting portions are respectively arranged at both ends of the lower pressing main body in the length direction; there is a gap between the two lower abutting portions to jointly form a groove with the lower pressing main body for accommodating the lower flange of the bottom cross beam.

[0010] Preferably, the lower pressing main body includes a lower mounting portion and a lower fitting portion, and the lower fitting portion and the abutting portion are respectively located on both sides of the lower mounting portion in the width direction; both ends of the lower mounting portion in the length direction extend outward beyond both sides of the lower flange of the bottom cross beam, and assembly holes for the locking member to pass through are provided at the ends of the lower mounting portion that extend beyond the lower flange of the bottom cross beam; the upper surface of the lower fitting portion is used for fitting the lower surface of the upper flange of the longitudinal beam.

[0011] Preferably, the locking member is a bolt, and screw holes adapted to the bolt are provided at positions opposite to the ends of the upper pressing member in the length direction and the ends of the lower pressing member in the length direction.

[0012] The present invention also provides a semi-trailer for container transportation, which includes a frame and a container arranged on the frame. The bottom cross beam of the container abuts against the longitudinal beam of the frame. The cross sections of both the bottom cross beam and the longitudinal beam are in the shape of an I. The semi-trailer for container transportation includes the above clamping device. There are multiple pairs of the clamping devices, and the multiple pairs of clamping devices are arranged at intervals along the length direction of the frame. Each pair of clamping devices is symmetrically arranged with respect to the center line in the width direction of the frame.

[0013] Preferably, multiple pairs of the clamping devices are arranged near the tail end of the frame, and the distance between adjacent two pairs of clamping devices increases sequentially in the direction from the head end to the tail end of the frame.

[0014] As can be seen from the above technical solutions, the beneficial effects of the present invention are as follows:

[0015] In the semi-trailer for container transportation of the present invention, the container can be stably fixed on the frame through the clamping device. The overall structure of this clamping device is simple, easy to use, and will not damage the structures of the container and the frame. The clamping device can tightly fix the container to the frame. On the one hand, it can improve the connection performance of the whole vehicle, avoid the relative sliding between the container and the frame when the vehicle makes a sharp turn, and ensure the safety of vehicle driving; on the other hand, it can strengthen the fixed connection between the container and the frame, help bear the load transmitted from the container to the frame, and effectively avoid the deformation of the box body and the frame due to excessive force. Description of the Drawings

[0016] Figure 1 is a schematic structural view of an embodiment of the semi-trailer for container transportation of the present invention.

[0017] Figure 2 is a top view of an embodiment of the semi-trailer for container transportation of the present invention.

[0018] Figure 3 is a schematic structural view of an embodiment of the clamping device of the present invention.

[0019] Figure 4 is another schematic structural view of an embodiment of the clamping device of the present invention.

[0020] Figure 5 is a schematic structural view of the upper pressing member in an embodiment of the clamping device of the present invention.

[0021] Figure 6 is a top view of the upper pressing member in an embodiment of the clamping device of the present invention.

[0022] Figure 7 is a side view of the upper pressing member in an embodiment of the clamping device of the present invention.

[0023] Figure 8It is a schematic structural view of the lower pressing member in the embodiment of the clamping device of the present invention.

[0024] Figure 9 It is a top view of the lower pressing member in the embodiment of the clamping device of the present invention.

[0025] Figure 10 It is a side view of the lower pressing member in the embodiment of the clamping device of the present invention.

[0026] Explanation of reference numerals is as follows: 1. Semi-trailer for container transportation; 11. Frame; 111. Longitudinal beam; 12. Container; 121. Bottom cross beam; 2. Clamping device; 21. Upper pressing member; 210. Upper pressing main body; 211. Upper pressing part; 212. Upper mounting part; 213. Upper fitting part; 214. Mounting hole; 22. Lower pressing member; 220. Lower pressing main body; 221. Lower abutting part; 222. Lower mounting part; 223. Lower fitting part; 224. Assembly hole; 23. Locking member; 24. Groove; 25. Release nut. Detailed implementation manners

[0027] Typical implementation manners reflecting the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different implementation manners, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0028] In order to further illustrate the principle and structure of the present invention, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0029] Refer to Figure 1 and Figure 2 , the present application provides a semi-trailer 1 for container transportation, which includes a frame 11 and a container 12 arranged on the frame 11. The cross-sections of the bottom cross beam 121 of the container 12 and the longitudinal beam 111 of the frame 11 are both in the shape of a capital "I". When the container 12 is placed on the frame 11, the bottom cross beam 121 of the container 12 abuts perpendicularly against the longitudinal beam 111 of the frame 11, and the lower surface of the lower flange of the bottom cross beam 121 fits against the upper surface of the upper flange of the longitudinal beam 111.

[0030] In this embodiment, as Figure 3 and Figure 4 shown, the semi-trailer 1 for container transportation further includes a clamping device 2 for fixing the container 12 to the frame 11 of the semi-trailer. The clamping device 2 includes an upper pressing assembly, a lower pressing assembly, and a locking member 23.

[0031] The upper clamping assembly includes two upper clamping members 21, and the lower clamping assembly includes two lower clamping members 22. The length direction of the upper clamping members 21 is perpendicular to the length direction of the lower clamping members 22. In this embodiment, the lower clamping members 22 are arranged below the upper clamping members 21, and the two upper clamping members 21 and the two lower clamping members 22 are arranged in a tic-tac-toe shape.

[0032] Specifically, two upper clamping members 21 are respectively arranged on both sides of the web of the bottom cross beam 121. Both ends of each upper clamping member 21 in the length direction exceed both sides of the upper wing plate of the longitudinal beam 111. The upper clamping member 21 fits the upper surface of the lower wing plate of the bottom cross beam 121 in the width direction and exceeds the edge of the lower wing plate of the bottom cross beam 121.

[0033] The two lower clamping members 22 are respectively located on both sides of the web of the longitudinal beam 111. Both ends of each lower clamping member 22 in the length direction exceed both sides of the lower wing plate of the bottom cross beam 121, and are respectively opposite to the ends of the two upper clamping members 21 in the length direction that exceed the same side of the upper wing plate of the longitudinal beam 111. The lower clamping member 22 fits the lower surface of the upper wing plate of the longitudinal beam 111 in the width direction and exceeds the edge of the upper wing plate of the longitudinal beam 111.

[0034] The locking member 23 is disposed through a portion of the end portion of the upper clamping member 21 in the length direction opposite to the end portion of the lower clamping member 22 in the length direction, so that the upper clamping assembly and the lower clamping assembly are locked with each other.

[0035] See also Figures 5 to 7 The upper clamping member 21 includes an upper clamping body 210 and an upper clamping portion 211. The outer contour of the upper clamping body 210 is roughly rectangular, and the upper clamping portion 211 is formed by extending downward from the lower surface of the upper clamping body 210 close to the side in the width direction. The length of the clamping portion is less than the length of the upper clamping body 210, and the clamping portion is arranged near the middle of the upper clamping body 210. In this embodiment, the lower surface of the upper clamping portion 211 protrudes from the lower surface of the upper clamping body 210, and the lower surface of the upper clamping portion 211 is used to contact with the upper surface of the wing plate on the longitudinal beam 111.

[0036] Furthermore, the upper clamping body 210 includes an upper mounting portion 212 and an upper fitting portion 213. The upper mounting portion 212 is arranged on one side of the upper clamping portion 211 in the width direction, and the upper fitting portion 213 is arranged on the side of the upper mounting portion 212 in the width direction away from the upper clamping portion 211, that is, the upper clamping portion 211 and the upper fitting portion 213 are respectively located on both sides of the upper mounting portion 212 in the width direction.

[0037] In this embodiment, the length of the upper mounting portion 212 is the same as that of the upper fitting portion 213, and both ends of the upper mounting portion 212 in the length direction are provided with mounting holes 214 for the locking member 23 to pass through. The lower surface of the upper fitting portion 213 slightly exceeds the lower surface of the upper mounting portion 212, and the lower surface of the upper fitting portion 213 is used to fit the upper surface of the lower wing plate of the bottom cross beam 121.

[0038] See also Figures 8 to 10 The lower clamping member 22 includes a lower clamping body 220 and two lower abutting portions 221. The outer contour of the lower clamping body 220 is roughly rectangular, and the lower abutting portion 221 is formed by extending upward from one side of the upper surface of the lower clamping body 220 close to the width direction, and the two lower abutting portions 221 are respectively located at both ends of the lower clamping body 220 in the length direction.

[0039] In this embodiment, a gap is provided between the two lower abutting portions 221 to form a groove 24 for accommodating the lower wing plate of the bottom cross beam 121 together with the lower clamping body 220. The upper surface of the lower abutting portion 221 of this embodiment extends upward beyond the upper surface of the lower clamping body 220, and the upper surface of the lower abutting portion 221 is used to fit the lower surface of the upper clamping body 210.

[0040] Further, the lower pressing body 220 includes a lower mounting portion 222 and a lower fitting portion 223. The lower mounting portion 222 is arranged on one side of the lower abutting portion 221 in the width direction, and the lower fitting portion 223 is arranged on the side of the lower mounting portion 222 in the width direction away from the lower abutting portion 221, that is, the lower abutting portion 221 and the lower fitting portion 223 are respectively located on both sides of the lower mounting portion 222 in the width direction.

[0041] In this embodiment, the length of the lower mounting portion 222 is the same as that of the lower fitting portion 223. Both ends of the lower mounting portion 222 in the length direction are respectively provided with assembly holes 224 for the locking member 23 to pass through. The two assembly holes 224 on each lower clamping member 22 respectively correspond to the positions of the mounting holes 214 on the same side of the two upper clamping members 21. The upper surface of the lower fitting portion 223 of this embodiment slightly exceeds the upper surface of the lower mounting portion 222, and the upper surface of the lower fitting portion 223 is used to fit the lower surface of the upper wing plate of the longitudinal beam 111.

[0042] Furthermore, the locking member 23 of the present embodiment is a bolt, and the mounting hole 214 and the assembly hole 224 are both screw holes adapted to the bolt. When the bolt is screwed and fixed in the screw hole, the upper clamping assembly and the lower clamping assembly can be locked with each other, thereby fixing the container 12 on the semi-trailer frame 11. Preferably, in the present embodiment, a loose nut 25 is disposed at the end of the bolt.

[0043] In addition, in this embodiment, the two top corners of the upper pressing main body 210 close to the upper pressing portion 211 are rounded, and the two top corners of the lower pressing main body 220 close to the lower abutting portion 221 are rounded.

[0044] For the clamping device 2 of this embodiment, when in use, first place the two upper pressing members 21 on both sides of the web of the bottom cross beam 121 respectively, so that the lower surface of the upper fitting portion 213 fits on the upper surface of the lower flange of the bottom cross beam 121, and the lower surface of the upper pressing portion 211 fits on the upper surface of the upper flange of the longitudinal beam 111; then place the two lower pressing members 22 on both sides of the web of the longitudinal beam 111 respectively, so that the lower flange of the bottom cross beam 121 is received in the groove 24, and at the same time, the upper surface of the lower abutting portion 221 on each lower pressing member 22 abuts against the lower surface of the upper pressing main body 210 of the two upper pressing members 21 respectively, and the upper surface of the lower fitting portion 223 fits on the lower surface of the upper flange of the longitudinal beam 111, and make the positions of the assembly holes 224 and the mounting holes 214 correspond; pass the bolts through the assembly holes 224 and the mounting holes 214 and tighten them to lock the upper pressing assembly and the lower pressing assembly, thereby fixing the container 12 on the vehicle frame 11.

[0045] Refer to Figure 1 and Figure 2 In the length direction of the vehicle frame 11, multiple pairs of clamping devices 2 are arranged at intervals. Each pair of clamping devices 2 is symmetrically arranged on both sides of the center line in the width direction of the vehicle frame 11. Each clamping device 2 can fix the container 12 on the vehicle frame 11, thereby ensuring the stable placement of the container 12 on the vehicle frame 11.

[0046] Furthermore, multiple pairs of clamping devices 2 are arranged close to the tail end of the vehicle frame 11. This kind of arrangement can strengthen the fixation of the container 12 and the vehicle frame 11 at the position close to the tail of the vehicle frame 11. When the vehicle makes a sharp turn during driving, it can effectively prevent the sliding of the bottom of the container 12 and the bracket of the vehicle frame 11, and ensure the safe driving of the vehicle.

[0047] Preferably, the distance between adjacent pairs of clamping devices 2 increases successively in the direction from the head end to the tail end of the vehicle frame 11. In this embodiment, the container transport semi-trailer 1 includes a total of three pairs of clamping devices 2. From the head end to the tail end of the vehicle frame 11, the three pairs of clamping devices 2 are the first pair of clamping devices, the second pair of clamping devices, and the third pair of clamping devices in sequence.

[0048] In this embodiment, the ratio of the distance between the first pair of clamping devices and the second pair of clamping devices to the distance between the second pair of clamping devices and the third pair of clamping devices is 2:3. This kind of arrangement can strengthen the fixation of the container 12 and the vehicle frame 11 in sections at the position close to the tail of the vehicle frame 11, and further ensure the stable placement of the container 12 on the vehicle frame 11.

[0049] For the container transportation semi-trailer of this embodiment, the container can be stably fixed on the vehicle frame through the clamping device. The overall structure of the clamping device is simple, easy to use, and will not damage the structures of the container and the vehicle frame. The clamping device can tightly fix the container to the vehicle frame. On the one hand, it can improve the connection performance of the whole vehicle, avoid the relative sliding between the container and the vehicle frame when the vehicle makes a sharp turn, and ensure the safety of vehicle driving; on the other hand, it can strengthen the fixed connection between the container and the vehicle frame, help carry the load transferred from the container to the vehicle frame, and effectively avoid the deformation of the container body and the vehicle frame due to excessive force.

[0050] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A clamping device for fixing a bottom cross beam of a container to a longitudinal beam of a frame, wherein the bottom cross beam and the longitudinal beam are perpendicular to each other, and the cross sections of the bottom cross beam and the longitudinal beam are both I-shaped, characterized in that: The clamping device includes: An upper pressing component, including two upper pressing members, which are arranged on both sides of the web of the bottom cross beam; the two upper pressing members are attached to the upper surface of the lower flange of the bottom cross beam in the width direction and extend beyond the edge of the lower flange of the bottom cross beam; both ends of the upper pressing member in the length direction extend beyond both sides of the upper flange of the longitudinal beam; the upper pressing member includes an upper pressing main body and an upper pressing portion, and the upper pressing portion extends downward from one side of the lower surface of the upper pressing main body close to its width direction; a part of the lower surface of the upper pressing main body close to the other side of its width direction is used to fit the upper surface of the lower flange of the bottom cross beam; the lower surface of the upper pressing portion protrudes from the lower surface of the upper pressing main body, and the lower surface of the upper pressing portion is used to fit the upper surface of the upper flange of the longitudinal beam; the length of the upper pressing portion is less than the length of the upper pressing main body, and the upper pressing portion is arranged close to the middle position of the upper pressing main body; the upper pressing main body includes an upper mounting portion and an upper fitting portion, and the upper fitting portion and the upper pressing portion are respectively located on both sides of the upper mounting portion in the width direction; both ends of the upper mounting portion in the length direction extend outward beyond both sides of the upper flange of the longitudinal beam, and the lower surface of the upper fitting portion is used to fit the upper surface of the lower flange of the bottom cross beam; A lower pressing component, including two lower pressing members, which are arranged on both sides of the web of the longitudinal beam; the two lower pressing members are attached to the lower surface of the upper flange of the longitudinal beam in the width direction and extend beyond the edge of the upper flange of the longitudinal beam; both ends of the lower pressing member in the length direction extend beyond both sides of the lower flange of the bottom cross beam and are respectively opposite to the two upper pressing members; A locking member, which penetrates through the opposite parts of the upper pressing member and the lower pressing member to lock the upper pressing component and the lower pressing component to each other; Wherein, an installation hole for the locking member to pass through is provided at the part of the end of the upper mounting portion that extends beyond the upper flange of the longitudinal beam.

2. The clamping device according to claim 1, characterized in that, The lower pressing member includes a lower pressing main body and a lower abutting portion, and the lower abutting portion extends upward from one side of the upper surface of the lower pressing main body close to the width direction; a part of the upper surface of the lower pressing main body close to the other side of its width direction is used to fit the lower surface of the upper flange of the longitudinal beam; The upper surface of the lower abutting portion protrudes from the upper surface of the lower pressing main body, and the upper surface of the lower abutting portion is used to fit the lower surface of the upper pressing member.

3. The clamping device according to claim 2, characterized in that, There are two lower abutting portions, and the two lower abutting portions are respectively arranged at both ends of the lower pressing main body in the length direction; there is a gap between the two lower abutting portions to jointly form a groove with the lower pressing main body for accommodating the lower flange of the bottom cross beam.

4. The clamping device according to claim 2, characterized in that The lower pressing main body includes a lower mounting portion and a lower fitting portion, and the lower fitting portion and the abutting portion are respectively located on both sides of the lower mounting portion in the width direction; Both ends of the lower mounting portion in the length direction extend outward beyond both sides of the lower flange of the bottom cross beam, and an assembly hole for the locking member to pass through is provided at the end of the lower mounting portion that extends beyond the lower flange of the bottom cross beam; the upper surface of the lower fitting portion is used to fit the lower surface of the upper flange of the longitudinal beam.

5. The clamping device according to claim 1, characterized in that, The locking member is a bolt, and screw holes adapted to the bolt are provided at positions of the end portions in the length direction of the upper pressing member opposite to the end portions in the length direction of the lower pressing member.

6. A container transport semitrailer, comprising a frame and a container mounted on the frame, wherein the bottom cross beam of the container abuts against the longitudinal beam of the frame, and the cross sections of the bottom cross beam and the longitudinal beam are both I-shaped, characterized in that: The container transport semi-trailer includes the clamping device according to any one of claims 1-5. A plurality of pairs of the clamping devices are provided, and the plurality of pairs of clamping devices are arranged at intervals along the length direction of the vehicle frame, and each pair of clamping devices is symmetrically arranged with respect to the center line in the width direction of the vehicle frame.

7. The semi-trailer for container transportation according to claim 6, characterized in that, A plurality of pairs of the clamping devices are arranged near the tail end of the vehicle frame, and the distance between adjacent pairs of clamping devices increases sequentially in the direction from the head end to the tail end of the vehicle frame.

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