A tension structure for a loading plate

Abstract

This utility model provides a traction structure for a loading platform, belonging to the field of loading and transportation technology. It solves the problem that existing loading platforms are difficult to conveniently and smoothly transfer goods within limited space. The traction structure of this loading platform includes a rectangular frame support. The supporting frame has two extension plates on its outer side at one end, with two through holes extending through this end. The extension plates have hanging slots with their openings facing the through holes. The inner side of the supporting frame has two guide slots communicating with the through holes along its length. The traction structure includes a U-shaped bracket with guide blocks at both ends. The guide blocks can slide along the length of the guide slots and can also pass through the through holes into the hanging slots and rotate within them. This traction structure of the loading platform facilitates convenient and smooth transfer of goods within limited space, while also enabling convenient and reliable storage.

Description

Technical Field

[0001] This utility model belongs to the field of loading and transportation technology, and relates to a tensioning structure for a loading plate. Background Technology

[0002] A loading pallet is a plate-shaped tool used for transporting, securing, or supporting goods. It can effectively improve loading and unloading efficiency, reduce the burden of manual handling, and optimize warehouse space when used in conjunction with racks, containers, etc.

[0003] However, when transporting cylindrical cargo in existing containers, most methods involve directly placing the cargo inside the container and then securing it with fastening materials at designated points within the container. This method is complex, the fastening materials cannot be reused, resulting in significant material waste and high transportation costs. Furthermore, vibrations during transport can loosen the fastening materials, easily causing the cylindrical cargo to shift and potentially leading to traffic accidents, thus seriously affecting transportation safety.

[0004] To this end, Chinese patent application (application number: 201821007043.2) discloses a cylindrical cargo container pallet, which mainly consists of square bolts, hooks, longitudinal beams, transverse beams, support beams, pads, roller assemblies, anti-slip plates, transverse forklift slots, rubber pads, locking irons, limiting devices, longitudinal forklift slots, and handles; the longitudinal beams, transverse beams, support beams, and pads form a rectangular truss base, two support beams form "∧" shaped components, and multiple "∧" shaped components are placed on the transverse beams of the rectangular truss base to form one or more "M" connected trusses; pads are provided below the rectangular truss base; locking irons are "U" shaped and secured to one end of the rectangular truss base, and square bolts are provided on the outer side of the transverse beam at one end of the cylindrical cargo container pallet bearing body, and roller assemblies are provided at the bottom of the transverse beam at the other end.

[0005] However, the above method has the following drawbacks: 1. When in use, it requires the cooperation of a guide rail trolley. The guide rail trolley extends into the container to push the cylindrical cargo container pallet containing cylindrical goods into the container. The guide rail trolley requires a large space to operate normally. If the containers are stacked or the goods on the pallets are high, it may be difficult to leave enough space for the guide rail trolley to move between the container floor and the pallet, thus making it difficult to conveniently and smoothly transfer goods in a limited space. 2. The longitudinal forklift slots at the bottom of the crossbeams, the transverse forklift slots at the bottom of the longitudinal beams, the pads under the rectangular truss base, and the anti-slip plates under the pads occupy vertical space, resulting in a large volume. It requires a large space for storage, and if there are obstacles around, they may bump into and damage the parts protruding from the pallet surface, requiring extra care and protection. Storage is inconvenient and unreliable, and it is also difficult to conveniently and smoothly transfer goods in a limited space. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a traction structure for a loading plate. The technical problem to be solved by this utility model is to facilitate the smooth and convenient transfer of goods within a limited space, while also achieving convenient and reliable storage.

[0007] The objective of this utility model can be achieved through the following technical solution: a traction structure for a loading plate, the loading plate including a rectangular frame support frame, characterized in that two extension plates are provided on the outer side of one end of the support frame, and two through holes are also provided through this end, the extension plates are provided with hanging grooves with the openings facing the through holes, and the inner side of the support frame is provided with two guide grooves communicating with the through holes along the length direction, the traction structure including a U-shaped bracket, the bracket having guide blocks at both ends, the guide blocks being able to slide along the length direction in the guide grooves, and the guide blocks being able to pass through the through holes into the hanging grooves and rotate in the hanging grooves.

[0008] In practice, the end of the loading pallet furthest from the bracket is inserted into the container. A forklift is used to lift the bracket, and the guide block slides from the guide groove through the through hole to the hanging slot, meaning the bracket slides outwards from the container. After sliding into the hanging slot on the extension plate, the guide block rotates within the hanging slot. At this point, the bracket swings upwards and lifts the loading pallet. The bracket then abuts against the side wall of the loading pallet and steadily pushes it forward. Once the loading pallet reaches the desired position, forward movement stops, and the forklift steadily lowers the bracket. The guide block slides from the hanging slot through the through hole to the guide groove, meaning the bracket slides inwards from the container. After sliding into the guide groove, the guide block rotates within the hanging slot. At this point, the bracket swings downwards and lowers the loading pallet, placing it horizontally on the container floor. By placing the guide groove inside the support frame, rather than below it, the height of the loading platform is effectively controlled. This not only provides more loading space for goods and more operating space for personnel, facilitating smooth goods transfer within limited space, but also prevents damage from bumps and knocks by surrounding obstacles, eliminating the need for extra care and protection, thus promoting convenient and reliable storage. By using a forklift to lift or lower the pallet from outside the container, the pallet can be pulled and swung relative to the loading platform. This allows the forklift to push or pull the loading platform into or out of the container from the outside, eliminating the need for an additional guide rail vehicle and reducing the space requirements inside the container, further facilitating convenient and smooth goods transfer within limited space. The bracket can be pulled out and swung relative to the loading platform, allowing the loading platform to be lifted or lowered. The angle between the loading platform and the container floor can be freely adjusted according to the height and length of the cargo and the remaining space in the container, effectively improving flexibility and applicability. This helps to facilitate convenient and smooth cargo transfer in limited spaces. When not in use, the bracket can swing downwards and slide inwards towards the support frame. The support frame and extension plate help to prevent damage to the bracket from collisions to a certain extent, which is conducive to convenient and reliable storage.

[0009] In the aforementioned traction structure of the loading plate, the edge where the extension plate connects to the support frame is recessed inward to form a hanging groove. The hanging groove is formed by the inward recess at the edge where the extension plate connects to the support frame; it does not protrude from the surface of the extension plate, simplifying the structure and preventing interference with the swinging of the bracket.

[0010] The aforementioned traction structure of the loading plate includes two hollow guide frames along the length of the inner side of the support frame. Two elongated guide plates are provided along the length of the inner wall of each guide frame. These two guide plates and their corresponding guide frames together form a guide groove. The guide groove is located within the cavity of the hollow guide frame, effectively preventing damage from impacts by surrounding obstacles and facilitating stable and reliable sliding of the guide block within the groove. The two guide plates and their corresponding guide frames together form a U-shape, with the guide block extending into the guide groove and being enclosed by its walls, further contributing to stable and reliable sliding.

[0011] The aforementioned loading platform's tensioning structure includes a circumferentially circumferentially flange on the outer side of the support frame, with the extension plate abutting against this flange. The flange wraps around the outer side of the support frame, providing additional support points for the extension plate and enhancing structural strength and operational stability. Simultaneously, the flange prevents the support frame from directly colliding with containers or other cargo, thus avoiding unnecessary damage. In summary, this effectively improves structural strength, prevents unnecessary collision damage, and helps ensure the stability and reliability of cargo transfer.

[0012] The aforementioned loading plate's pulling structure features several clearance gaps on its retaining edge. When the guide block enters the hanging slot, the bracket can swing upwards, extending into the clearance gaps and abutting against the support frame. During this process, the clearance gaps not only provide space for the bracket's swing but also effectively limit its swing trajectory. Simultaneously, the retaining edge can also prevent debris from approaching and hindering the bracket's normal swing. In summary, this contributes to ensuring the stability and reliability of cargo transfer.

[0013] In the aforementioned loading plate's tensioning structure, the through-hole on the support frame sidewall has a cross-shaped opening, and the guide block is cylindrical with both ends protruding from the bracket sidewall. The cylindrical guide block makes line contact with the guide groove, resulting in a small friction area and lower resistance during sliding. Furthermore, when the bracket swings, the cylindrical guide block can rotate freely within the guide groove without jamming due to sharp edges, thus avoiding stress concentration. The two ends of the guide block protruding from the bracket sidewall allow one end to slide into the guide groove, while the other end allows personnel to visually observe the guide block's position, facilitating easy monitoring of its working status and enabling adjustments and maintenance. In summary, this design facilitates convenient and smooth cargo transfer within a limited space.

[0014] In the aforementioned traction structure of the loading plate, the openings of the two guide grooves are arranged facing each other. The facing grooves form a symmetrical sliding track, and the bidirectional constraint helps the bracket to move in a straight line during the pulling and swinging process, and is subject to symmetrical constraint, avoiding instability caused by lateral deviation.

[0015] The aforementioned loading platform's tensioning structure features at least two sets of rollers on each side of the support frame along its length. These multiple sets of rollers, distributed along the length of the support frame, distribute pressure across multiple support points, preventing deformation or jamming caused by excessive load on a single roller. Even if the center of gravity of the cargo shifts slightly, the multiple sets of rollers can still maintain the horizontal movement of the support frame, preventing tipping. Furthermore, if one set of rollers temporarily fails due to uneven ground, obstruction by foreign objects, or its own damage, the other sets of rollers can still maintain the movement of the support frame. In summary, this effectively improves the stability and reliability of cargo transfer.

[0016] In the aforementioned loading platform's traction structure, roller assemblies on the same side of the support frame are distributed at both ends along the length direction, with the roller surfaces extending beyond the sidewall of the support frame. This extension allows the roller assemblies to contact the container sidewall before the support frame, automatically adjusting the path to avoid collisions with the support frame body. Furthermore, the roller assemblies' placement on both sides of the support frame allows for direct inspection, cleaning, or replacement of damaged rollers without needing to flip the loading platform. In summary, this not only avoids collision damage but also facilitates convenient inspection and maintenance.

[0017] Compared with existing technologies, the tension structure of this loading plate has the following advantages:

[0018] 1. In the traction structure of this loading platform, the guide groove is located inside the support frame instead of below the support frame, which effectively controls the height of the loading platform. This not only provides more loading space for goods and more operating space for personnel, but also helps to smoothly transfer goods in a limited space. Furthermore, the guide groove does not protrude from the surface of the loading platform, so it will not be damaged by bumps from surrounding obstacles. It does not require extra attention or protection, which is conducive to convenient and reliable storage.

[0019] 2. In the traction structure of this loading pallet, the bracket is lifted or lowered by a forklift outside the container, so that the bracket is pulled and swung relative to the loading pallet. The forklift can push or pull the loading pallet out of the container from the outside of the container. This eliminates the need for an additional guide rail vehicle and reduces the requirements for the internal space of the container, which helps to realize the convenient and smooth transfer of goods in a limited space.

[0020] 3. In the traction structure of this loading platform, the bracket can be pulled and swung relative to the loading platform. The loading platform can be lifted or lowered by the bracket, and the angle between the loading platform and the container floor can be freely adjusted according to the height and length of the cargo and the remaining space in the container. This effectively improves flexibility and applicability, and helps to facilitate the smooth and convenient transfer of goods in a limited space. Moreover, when the bracket is not in use, it can swing downward and slide inward to the support frame. The support frame and extension plate can be used to a certain extent to avoid damage to the bracket due to collision, which is conducive to convenient and reliable storage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the bracket of the traction structure of this loading plate in the pulled-out state.

[0022] Figure 2 This is a schematic diagram of the bracket storage state of the traction structure of this loading plate.

[0023] Figure 3 This is a front view of the support bracket of the traction structure of this loading plate in its stowed state.

[0024] Figure 4 yes Figure 3 A cross-sectional view along the AA direction.

[0025] In the figure, 1 is the support frame; 1a is the retaining edge; 1a1 is the clearance; 2 is the roller assembly; 3 is the guide frame; 3a is the guide plate; 4 is the through hole; 5 is the bracket; 6 is the guide groove; 7 is the guide block; 8 is the extension plate; and 8a is the hanging groove. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As can be seen, the traction structure of this loading platform includes a rectangular frame support 1, with two sets of rollers 2 fixed along the length of each side of the support frame 1. Multiple sets of rollers 2 are distributed along the length of the support frame 1, distributing pressure to multiple support points and preventing deformation or jamming caused by excessive load on a single roller. Even if the center of gravity of the goods shifts slightly, the multiple sets of rollers can still maintain the horizontal movement of the support frame 1, preventing tipping. Furthermore, if one set of rollers 2 temporarily fails due to uneven ground, obstruction by foreign objects, or its own damage, the other sets of rollers 2 can still maintain the movement of the support frame 1. In summary, this effectively improves the stability and reliability of goods transfer.

[0029] Roller assemblies 2 on the same side of the support frame 1 are distributed at both ends along the length direction, with the roller surfaces of roller assemblies 2 extending beyond the side wall of the support frame 1. The extended roller surfaces of roller assemblies 2 allow them to contact the container side wall before the support frame 1, automatically adjusting their path to avoid collisions with the main body of the support frame 1. Furthermore, the roller assemblies 2, located on both sides of the support frame 1, allow for direct inspection, cleaning, or replacement of damaged rollers without needing to flip the loading plate. In summary, this not only avoids collision damage but also facilitates convenient inspection and maintenance.

[0030] Two hollow guide frames 3 are fixed along the length of the support frame 1. Two extension plates 8 are provided on the outer side of one end of the support frame 1. The extension plates 8 have hanging grooves 9 with their openings facing the through holes. The extension plates 8 and guide frames 3 correspond one-to-one. Two cross-shaped through holes 4 are provided through the side wall of the support frame 1 with the extension plates 8. The tensioning structure includes a U-shaped bracket 5 and two guide grooves 6 communicating with the through holes 4. The guide grooves 6 are located in the inner cavity of the guide frame 3. The openings of the guide frames and the two guide grooves 6 are arranged opposite each other. Guide blocks 7 are provided at both ends of the bracket 5. When the guide blocks 7 slide along the length of the guide grooves 6, the bracket 7 moves along the length of the support frame 1. When the guide blocks 7 pass through the through holes and enter the hanging grooves 9 and rotate in the hanging grooves 9, the bracket 7 swings vertically.

[0031] Specifically, a hanging groove 8a is formed by an inward recess at the edge where the extension plate 8 connects to the support frame 1. The hanging groove 8a does not protrude from the surface of the extension plate 8, simplifying the structure and preventing interference with the swing of the bracket 5. Two hollow guide frames 3 are provided along the length of the inner side of the support frame 1. Two elongated guide plates 3a are provided along the length of the inner wall of the guide frames 3. These two guide plates 3a and their corresponding guide frames 3 together form a guide groove 6. The guide groove 6 is located within the hollow cavity of the guide frame 6, effectively preventing damage to the guide groove 6 from impacts by surrounding obstacles and facilitating stable and reliable sliding of the guide block 7 within the guide groove 6. The two guide plates 3a and their corresponding guide frames 3 together form a U-shape, with the guide block 7 extending into the guide groove 6 and being enclosed by the groove wall, further contributing to stable and reliable sliding.

[0032] The two guide grooves 6 are arranged facing each other, forming a symmetrical sliding track. The bidirectional constraint helps the bracket 5 to move in a straight line during the pulling and swinging process, and is subject to symmetrical constraint, avoiding instability caused by lateral deviation. The guide grooves 6 are located in the inner cavity of the hollow guide frame 3, which effectively prevents the guide grooves 6 from being damaged by collisions with surrounding obstacles, and helps the guide block 7 to slide stably and reliably within the guide grooves 6.

[0033] The through-hole 4 on the side wall of the support frame 1 has a cross-shaped opening. The guide block 7 is cylindrical, with both ends protruding from the side wall of the bracket 5. The guide block 7 can pass laterally through the through-hole 4 on the side wall of the support frame 1. When the guide block slides back and forth between the guide groove 6 and the hanging groove 9, the bracket 5 can swing vertically and move along the length of the guide groove 6. The cylindrical guide block 7 has a line contact with the guide groove 6, resulting in a small friction area and lower resistance during sliding. Moreover, when the bracket 5 swings, the cylindrical guide block 7 can rotate flexibly in the guide groove 6 without getting stuck due to sharp edges, thus avoiding stress concentration. The two ends of the guide block 7 protrude from the side wall of the bracket 5, with one end extending into the guide groove 6 for sliding, and the other end allowing personnel to visually observe the position of the guide block 7, facilitating easy monitoring of its working status and enabling adjustments and maintenance. In summary, this design facilitates convenient and smooth goods transfer within a limited space.

[0034] A retaining edge 1a is provided circumferentially on the outer side of the support frame 1, and the extension plate 8 abuts against the retaining edge 1a. The retaining edge 1a covers the outer side of the support frame 1, providing additional support points for the extension plate 8, thereby improving structural strength and operational stability. At the same time, the retaining edge can prevent the support frame 1 from directly colliding with containers or other goods, thus avoiding unnecessary damage. In summary, it can effectively improve structural strength, avoid unnecessary collision damage, and help ensure the stability and reliability of cargo transfer.

[0035] Specifically, the bracket 5 can swing downwards and move along the length of the guide groove 6 until it retracts into the retaining edge 1a. This avoids excessive occupation of vertical and horizontal space within the container when not in use, resulting in higher space utilization and facilitating convenient and smooth cargo transfer within a limited space. Simultaneously, when obstacles in the environment approach, they will first contact the support frame 1 and the retaining edge 1a, rather than directly impacting the bracket 5 and causing damage, thus promoting convenient and reliable storage.

[0036] The retaining edge 1a has several clearance gaps 1a1. When the guide block 7 extends into the hanging groove 8a, the bracket 5 can swing upwards and extend into the clearance gap 1a1 to abut against the support frame 1. The clearance gaps 1a1 provide space for the installation of components on the loading plate. The bracket 5 can swing upwards and extend into the corresponding clearance gap 1a1, thus abutting against the support frame 1. In this process, the clearance gaps 1a1 not only provide space for the bracket 5 to swing but also effectively limit the swing trajectory of the bracket 5. At the same time, the retaining edge 1a can also prevent debris from approaching to a certain extent, thereby hindering the normal swing of the bracket 5. In summary, this helps to ensure the stability and reliability of cargo transfer.

[0037] In actual operation, the end of the loading plate away from the bracket 5 is first inserted into the container, so that the rollers of the roller assembly 1 at that end contact the inner wall of the container. The bracket 5 is then lifted by a forklift. The guide block 7 slides from the guide groove 6 through the through hole 4 into the hanging groove 9. The bracket 5 slides outward along the length of the support frame 1. When the guide block 7 passes through the through hole 4 on the support frame 1 and slides into the hanging groove 9 on the extension plate 8, the bracket 5 swings upward around the hanging groove 9 under the upward pulling force and lifts the loading plate. Then it is pushed into the container. At this time, the bracket 5 extends into the clearance gap 1a1 and abuts against the side wall of the loading plate and steadily pushes it forward. Once the loading plate reaches the expected position, it stops moving forward. The forklift steadily lowers the bracket 5, which swings downward around the hanging groove 9. The guide block 7 slides from the hanging groove 9 through the through hole 4 into the guide groove 6. When the guide block 7 passes through the through hole 4 on the support frame 1 and slides into the guide groove 6, the bracket 5 slides along the length of the support frame 1 towards the inside of the container. During this process, the loading plate is slowly lowered until it is placed horizontally on the container floor.

[0038] By placing the guide groove 6 inside the guide frame support frame 1, rather than below it, the height of the loading plate is effectively controlled. This not only provides more loading space for goods and more operating space for personnel, facilitating smooth goods transfer within a limited space, but also ensures that the guide groove 6 does not protrude from the surface of the loading plate, preventing damage from bumps and knocks from surrounding obstacles. This eliminates the need for extra care and protection, promoting convenient and reliable storage. By using a forklift to lift or lower the bracket 5 from outside the container, the bracket 5 can be pulled and swung relative to the loading plate. The forklift can then push or pull the loading plate into or out of the container from the outside, eliminating the need for an additional guide rail vehicle and reducing the space requirements inside the container. This facilitates convenient and smooth goods transfer within a limited space. The bracket 5 can be pulled out and swung relative to the loading plate. The loading plate can be lifted or lowered through the bracket 5, and the angle between the loading plate and the container floor can be freely adjusted according to the height and length of the cargo and the remaining space in the container. This effectively improves flexibility and applicability, and helps to facilitate the smooth and convenient transfer of goods in a limited space. Moreover, when the bracket 5 is not in use, it can swing downward and slide inward to the support frame 1. The support frame 1 and the extension plate 8 can, to a certain extent, prevent the bracket 5 from being damaged by collision, which is conducive to convenient and reliable storage.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as support frame 1, retaining edge 1a, clearance gap 1a1, roller assembly 2, guide frame 3, guide plate 3a, through hole 4, bracket 5, guide groove 6, guide block 7, extension plate 8, and hanging groove 8a, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A tensioning structure for a loading plate, the loading plate comprising a rectangular frame support frame (1), characterized in that, The support frame (1) has two extension plates (8) on one side and two through holes (4) through it. The extension plates (8) have hanging grooves (8a) with the opening facing the through holes (4). The support frame (1) has two guide grooves (6) communicating with the through holes (4) along its length. The traction structure includes a U-shaped bracket (5). The bracket (5) has guide blocks (7) at both ends. The guide blocks (7) can slide along the length in the guide grooves (6). The guide blocks (7) can also pass through the through holes (4) into the hanging grooves (8a) and rotate in the hanging grooves (8a).

2. The tensioning structure for a loading plate according to claim 1, characterized in that, The edge where the extension plate (8) connects to the support frame (1) is recessed inward to form a hanging groove (8a).

3. The tensioning structure for a loading plate according to claim 1 or 2, characterized in that, The support frame (1) has two hollow guide frames (3) along its length. The inner side wall of the guide frame (3) has two long strip-shaped guide plates (3a) along its length. The two guide plates (3a) and the corresponding guide frames (3) together form a guide groove (6).

4. The tensioning structure for a loading plate according to claim 3, characterized in that, The support frame (1) has a retaining edge (1a) along its outer circumferential direction, and the extension plate (8) abuts against the retaining edge (1a).

5. The tensioning structure for a loading plate according to claim 4, characterized in that, The retaining edge (1a) is provided with several clearance gaps (1a1). When the guide block (7) enters the hanging groove (8a), the bracket (5) can swing upward and extend into the clearance gap (1a1) and abut against the support frame (1).

6. The tensioning structure for a loading plate according to claim 5, characterized in that, The through hole (4) has a cross-shaped opening on the side wall of the support frame (1), and the guide block (7) is cylindrical, with both ends of the guide block (7) protruding from the side wall of the bracket (5).

7. The tensioning structure for a loading plate according to claim 6, characterized in that, The openings of the two guide grooves (6) are arranged facing each other.

8. The tensioning structure for a loading plate according to claim 7, characterized in that, The support frame (1) has at least two sets of rollers (2) on both sides along the length direction.

9. The tensioning structure for a loading plate according to claim 8, characterized in that, The roller groups (2) on the same side of the support frame (1) are distributed at both ends along the length direction, and the roller surfaces of the roller groups (2) extend out of the side wall of the support frame (1).

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