Pad beam partial pressure structure of skeleton semitrailer

Abstract

The utility model relates to the technical field of semitrailers, and discloses a bearing beam partial pressure structure of a skeleton semitrailer. The bearing beam partial pressure structure comprises two bearing beams and two turnover mechanisms arranged on the web plates of the corresponding vehicle frame bodies respectively, each turnover mechanism is matched with one bearing beam, and the turnover mechanisms are used for driving the bearing beams to be placed on the upper wing plates of the corresponding vehicle frame bodies in a turnover mode or driving the bearing beams to be separated from the upper wing plates of the corresponding vehicle frame bodies in a turnover mode. According to the bearing beam partial pressure structure, the weight of a container which is originally and mainly concentrated on the installation cross beam of the overturning lock is dispersed to the whole frame body, especially the upper wing plate part, through the overturning and supporting effects of the bearing beam. According to the design, the load of a single stress point is obviously reduced, the bending deformation of the mounting cross beam caused by long-term overload stress is effectively prevented, the stability and the safety of the whole structure of the skeleton semitrailer are enhanced, and the transportation accident risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a cushion beam pressure-dividing structure of a skeleton semi-trailer. Background Art

[0002] Skeleton semi-trailer is a kind of transportation tool often used in container transportation. Existing skeleton semi-trailer includes front frame and rear frame, and the front frame is a gooseneck structure, which means that the skeleton semi-trailer can only load a 20-foot container or a 40-foot container. Specifically, two flip locks are usually arranged in the middle of the rear frame, and the distance between the flip lock and the lock on the front end beam of the front frame is 20 feet, so that the two can just support and fix a 20-foot container; the distance between the front end beam of the front frame and the lock on the rear end beam of the rear frame is 40 feet, so that the two can just support and fix a 40-foot container, that is, when the flip lock is to fix the container, the flip lock is in a vertical working state; when the flip lock does not need to fix the container, the flip lock seat flips from the upright working state to the inside to the non-working state. For details, please refer to the flip lock of a skeleton semi-trailer disclosed in the patent (CN220430002U).

[0003] However, when the flip lock secures the container, most of the weight of the container acts on the mounting beam of the flip lock. Long-term overload stress can easily cause the mounting beam to bend and deform, or even disconnect from the frame, causing transportation accidents. Therefore, it is urgent to solve the problem of excessive load on the flip lock and mounting beam when securing the container.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a cushion beam pressure-sharing structure for a skeleton semi-trailer, which is intended to share the weight borne by the flip lock and the installation beam.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cushion beam pressure-dividing structure for a skeleton semi-trailer, wherein the cushion beam pressure-dividing structure is arranged on two frame bodies of the semi-trailer, the two frame bodies are arranged at a left-right interval, and each frame body comprises a web and an upper wing plate arranged on the top of the web; the cushion beam pressure-dividing structure comprises two cushion beams and two flipping mechanisms respectively arranged on the webs of corresponding frame bodies, each flipping mechanism cooperates with a cushion beam, and the flipping mechanism is used to drive the cushion beam to flip and place it on the upper wing plate of the corresponding frame body or to drive the cushion beam to flip and leave the upper wing plate of the corresponding frame body.

[0008] As a further improvement of the above technical solution, the flipping mechanism includes a support plate fixed on the web and a swing arm pivotally connected to the top of the support plate, and one end of the swing arm away from the support plate is fixedly connected to the cushion beam.

[0009] As a further improvement of the above technical solution, two turning mechanisms are arranged on each web, and the swing arms of the two turning mechanisms are drivingly connected to the same cushion beam.

[0010] As a further improvement of the above technical solution, the turning mechanism is fixed on the inner side of the web.

[0011] As a further improvement of the above technical solution, a limiting bracket for supporting the cushion beam is provided between the two frame bodies.

[0012] As a further improvement of the above technical solution, the limiting bracket includes two angle steels extending laterally and symmetrically arranged, and two ends of the angle steels are respectively fixedly connected to the webs of the corresponding vehicle frame bodies.

[0013] As a further improvement of the above technical solution, a buffer pad strip in contact with the pad beam is provided on the angle steel.

[0014] As a further improvement of the above technical solution, the cushion beam is a square tube.

[0015] Beneficial effects of the utility model: Compared with the prior art, the cushion beam pressure-sharing structure provided by the utility model, through the flipping and supporting effect of the cushion beam, disperses the weight of the container originally concentrated on the flip lock installation beam to the entire frame body, especially the upper wing plate part. This design significantly reduces the load on a single stress point, effectively prevents the bending and deformation of the installation beam caused by long-term overload stress, enhances the overall structural stability and safety of the skeleton semi-trailer, and reduces the risk of transportation accidents. The cushion beam can adjust the position of the cushion beam in time according to the actual loading requirements, ensure the applicability of containers of various sizes during transportation, and improve transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the cushion beam pressure-dividing structure provided by the utility model installed on two vehicle frames.

[0017] Figure 2 This is a schematic diagram of the cushion beam in the cushion beam pressure-dividing structure being flipped over and placed on the upper wing plate of the vehicle frame.

[0018] Figure 3 This is a schematic diagram of the cushion beam in the cushion beam pressure-dividing structure being flipped over and placed on a limiting bracket.

[0019] Explanation of the main component symbols: 1-frame, 11-web, 12-upper wing plate, 21-mounting crossbeam, 22-flip lock, 3-pad beam, 4-flip mechanism, 41-support plate, 42-swing arm, 43-fixed shaft, 44-washer, 45-split pin, 5-limiting bracket, 51-angle steel, 52-buffer pad. DETAILED DESCRIPTION

[0020] The utility model provides a cushion beam pressure-dividing structure for a skeleton semi-trailer. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0021] See also Figure 1-Figure 3 The utility model provides a cushion beam pressure-dividing structure of a skeleton semi-trailer, wherein the cushion beam pressure-dividing structure is arranged on two frame bodies 1 of the semi-trailer, and the two frame bodies 1 are arranged at intervals on the left and right, and each frame body 1 includes a web 11 and an upper wing plate 12 arranged on the top of the web 11; the cushion beam pressure-dividing structure includes two cushion beams 3 and two flipping mechanisms 4 respectively arranged on the webs 11 of the corresponding frame bodies 1, each flipping mechanism 4 cooperates with a cushion beam 3, and the flipping mechanism 4 is used to drive the cushion beam 3 to flip and place it on the upper wing plate 12 of the corresponding frame body 1 or drive the cushion beam 3 to flip away from the upper wing plate 12 of the corresponding frame body 1.

[0022] The two frame bodies 1 are provided with mounting crossbeams 21, and the left and right ends of the mounting crossbeams 21 are respectively provided with a flip lock 22. When the flip lock 22 is needed to fix the container (such as a 20-foot container), the flip mechanism 4 is activated to drive the mat beam 3 matched with it to flip from the initial position to the upper wing plate 12 of the corresponding frame body 1. The two mat beams 3 are respectively laid flat on the corresponding upper wing plate 12. When the container is hoisted onto the skeleton semi-trailer, not only the flip lock 22 and the front end beam of the front frame effectively support and lock the bottom surface of the container, but also the mat beam 3 provides auxiliary support for the container. The mat beam 3 evenly distributes part of the gravity of the container on the upper wing plate 12 of the frame body 1, and the weight of the container originally concentrated on the mounting crossbeam 21 of the flip lock 22 is effectively dispersed, reducing the pressure on the single point. On the contrary, when the container is unloaded or a 40-foot container is loaded, the flip mechanism 4 acts in the opposite direction to flip the mat beam 3 from the upper wing plate 12 back to the original position.

[0023] Compared with the prior art, the cushion beam pressure-dividing structure provided by the utility model distributes the weight of the container, which was originally mainly concentrated on the installation beam 21 of the flip lock 22, to the entire frame body 1 through the flipping and supporting effect of the cushion beam 3. This design significantly reduces the load on a single stress point, effectively prevents the bending deformation of the installation beam 21 caused by long-term overload stress, enhances the overall structural stability and safety of the skeleton semi-trailer, and reduces the risk of transportation accidents. The cushion beam 3 can adjust the position of the cushion beam 3 in time according to the actual loading requirements, ensure the applicability of containers of various sizes during transportation, and improve transportation efficiency.

[0024] In order to simplify the structure and save the driving source, the flipping mechanism 4 is driven by manpower, and the flipping mechanism 4 includes a support plate 41 fixed on the web 11 and a swing arm 42 pivotally connected to the top of the support plate 41, and one end of the swing arm 42 away from the support plate 41 is fixedly connected to the cushion beam 3. The swing arm 42 is pivotally connected to the support plate 41 to form a stable rotation fulcrum. When the staff flips the swing arm 42 with force, the cushion beam 3 can be flipped, ensuring that the connection between the swing arm 42 and the cushion beam 3 remains stable during the flipping process, avoiding loosening or failure of the connection caused by the flipping action, and enhancing the reliability of the overall structure.

[0025] Specifically, a through hole is opened on the support plate 41 , and the fixed shaft 43 passes through the through holes on the swing arm 42 and the support plate 41 , and then a washer 44 is put on, and then a cotter pin 45 is inserted to limit the swing arm 42 from being separated from the fixed shaft 43 .

[0026] Preferably, two flipping mechanisms 4 are arranged on each web 11, and the swing arms 42 of the two flipping mechanisms 4 are drivingly connected to the same cushion beam 3. This makes the forces on both sides of the cushion beam 3 more balanced during the flipping process, avoids the problems of deflection and shaking caused by excessive force on one side, and significantly improves the stability of the cushion beam 3 during the flipping process.

[0027] In this embodiment, the flipping mechanism 4 is fixed on the inner side of the web 11. The space resources inside the frame body 1 are fully utilized to avoid the flipping mechanism 4 occupying the external space, thereby reducing the impact on the external contour of the vehicle, maintaining the overall compactness of the skeleton semi-trailer, facilitating operation in narrow roads or dense storage environments, and improving the vehicle's traffic capacity and flexibility. In addition, the inner side of the web is relatively hidden, and setting the flipping mechanism 4 there can effectively avoid direct damage to the flipping mechanism 4 by external environmental factors and extend its service life. At the same time, the inner layout also helps prevent people from accidentally touching or misoperating the flipping mechanism 4, thereby improving operational safety.

[0028] In order to ensure that the cushion beam 3 is well supported and protected when not in use, a limiting bracket 5 for supporting the cushion beam 3 is provided between the two frame bodies 1. The cushion beam 3 is properly stored when it is flipped onto the limiting bracket 5, which not only keeps the interior environment of the vehicle clean, but also eliminates the potential safety risks caused by the bumping and jumping of the cushion beam 3.

[0029] Preferably, the limit bracket 5 includes two transversely extending and symmetrically arranged angle steels 51, and the two ends of the angle steels 51 are respectively fixedly connected to the corresponding webs 11 of the frame body 1. The angle steel 51 has high bending and torsion resistance due to its unique "L"-shaped cross-section. The use of two symmetrically arranged angle steels 51 as the limit bracket 5 can not only significantly enhance the overall structural strength and rigidity of the bracket, ensure that it has sufficient bearing capacity and stability when supporting the cushion beam 3, but also facilitate welding and fixing it on the frame body 1. Even when facing a large load or impact, it can effectively prevent the bracket from bending, twisting or breaking, ensuring the reliable performance of its function.

[0030] Furthermore, the angle steel 51 is provided with a buffer strip 52 in contact with the cushion beam 3, and the specific buffer strip 52 is a rubber strip. The buffer strip 52 can effectively reduce the impact force of the cushion beam 3 placed on the angle steel 51, and also reduce the noise generated by the cushion beam 3 contacting the angle steel 51 due to transportation bumps.

[0031] The cushion beam 3 is a square tube. Due to its four-sided closed and hollow structural characteristics, the square tube has excellent bending and torsion resistance and can withstand large axial pressure and shear force. When used as a cushion beam 3, the square tube can provide stable support to resist various complex stress conditions during vehicle driving, ensuring the stability and safety of the vehicle structure. Compared with solid rectangular steel or circular tubes, the hollow structure of the square tube can greatly reduce the amount of material while meeting the same strength requirements, thereby reducing the weight of the cushion beam 3 itself and facilitating human drive. Of course, the cushion beam 3 can also be a solid square wooden beam and a square iron block.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A cushion beam pressure-dividing structure for a skeleton semi-trailer, wherein the cushion beam pressure-dividing structure is arranged on two frame bodies of the semi-trailer, the two frame bodies are arranged at intervals on the left and right, and each frame body includes a web and an upper wing plate arranged on the top of the web; characterized in that: The cushion beam pressure-sharing structure includes two cushion beams and two flipping mechanisms respectively arranged on the webs of the corresponding frame bodies, each flipping mechanism cooperates with a cushion beam, and the flipping mechanism is used to drive the cushion beam to flip and place it on the upper wing plate of the corresponding frame body or to drive the cushion beam to flip and leave the upper wing plate of the corresponding frame body.

2. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 1 is characterized in that: The turnover mechanism comprises a support plate fixed on the web and a swing arm pivotally connected to the top of the support plate, and one end of the swing arm away from the support plate is fixedly connected to the cushion beam.

3. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 2 is characterized in that: Two turning mechanisms are arranged on each web, and the swing arms of the two turning mechanisms are drivingly connected to the same cushion beam.

4. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 3 is characterized in that: The tilting mechanism is fixed on the inner side of the web.

5. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 4 is characterized in that: A limiting bracket for supporting the cushion beam is arranged between the two frame bodies.

6. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 5, characterized in that: The limiting bracket includes two angle steels extending transversely and symmetrically arranged, and two ends of the angle steels are respectively fixedly connected to the webs of the corresponding vehicle frame bodies.

7. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to claim 6, characterized in that: The angle steel is provided with a buffer pad strip in contact with the pad beam.

8. The cushion beam pressure-dividing structure of the skeleton semi-trailer according to any one of claims 1 to 7, characterized in that: The cushion beam is a square tube.

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